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inferredbugs-0023/instruction.md

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+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** UABEA
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using AssetsTools.NET;
+using AssetsTools.NET.Extra;
+using Avalonia;
+using Avalonia.Collections;
+using Avalonia.Controls;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace UABEAvalonia
+{
+    public class AssetDataTreeView : TreeView
+    {
+        private AssetWorkspace workspace;
+
+        private AvaloniaList<TreeViewItem> ListItems => (AvaloniaList<TreeViewItem>)Items;
+
+        public void Init(AssetWorkspace workspace)
+        {
+            this.workspace = workspace;
+            Reset();
+        }
+
+        public void Reset()
+        {
+            Items = new AvaloniaList<TreeViewItem>();
+        }
+
+        public void LoadComponent(AssetContainer container)
+        {
+            if (workspace == null)
+                return;
+
+            AssetTypeValueField baseField = workspace.GetBaseField(container);
+            TreeViewItem baseItem = CreateTreeItem($"{baseField.GetFieldType()} {baseField.GetName()}");
+
+            TreeViewItem arrayIndexTreeItem = CreateTreeItem("Loading...");
+            baseItem.Items = new AvaloniaList<TreeViewItem>() { arrayIndexTreeItem };
+            ListItems.Add(baseItem);
+
+            SetTreeItemEvents(baseItem, container.FileInstance, container.PathId, baseField);
+            baseItem.IsExpanded = true;
+        }
+
+        private TreeViewItem CreateTreeItem(string text)
+        {
+            return new TreeViewItem() { Header = text };
+        }
+
+        //lazy load tree items. avalonia is really slow to load if
+        //we just throw everything in the treeview at once
+        private void SetTreeItemEvents(TreeViewItem item, AssetsFileInstance fromFile, long fromPathId, AssetTypeValueField field)
+        {
+            item.Tag = new AssetDataTreeViewItem(fromFile, fromPathId);
+            //avalonia's treeviews have no Expanded event so this is all we can do
+            var expandObs = item.GetObservable(TreeViewItem.IsExpandedProperty);
+            expandObs.Subscribe(isExpanded =>
+            {
+                AssetDataTreeViewItem itemInfo = (AssetDataTreeViewItem)item.Tag;
+                if (isExpanded && !itemInfo.loaded)
+                {
+                    itemInfo.loaded = true; //don't load this again
+                    TreeLoad(fromFile, field, fromPathId, item);
+                }
+            });
+        }
+
+        private void SetPPtrEvents(TreeViewItem item, AssetsFileInstance fromFile, long fromPathId, AssetContainer cont)
+        {
+            item.Tag = new AssetDataTreeViewItem(fromFile, fromPathId);
+            var expandObs = item.GetObservable(TreeViewItem.IsExpandedProperty);
+            expandObs.Subscribe(isExpanded =>
+            {
+                AssetDataTreeViewItem itemInfo = (AssetDataTreeViewItem)item.Tag;
+                if (isExpanded && !itemInfo.loaded)
+                {
+                    itemInfo.loaded = true; //don't load this again
+
+                    if (cont != null)
+                    {
+                        AssetTypeValueField baseField = workspace.GetBaseField(cont);
+                        TreeViewItem baseItem = CreateTreeItem($"{baseField.GetFieldType()} {baseField.GetName()}");
+
+                        TreeViewItem arrayIndexTreeItem = CreateTreeItem("Loading...");
+                        baseItem.Items = new List<TreeViewItem>() { arrayIndexTreeItem };
+                        item.Items = new List<TreeViewItem>() { baseItem };
+                        SetTreeItemEvents(baseItem, cont.FileInstance, fromPathId, baseField);
+                    }
+                    else
+                    {
+                        item.Items = new List<TreeViewItem>() { CreateTreeItem("[null asset]") };
+                    }
+                }
+            });
+        }
+
+        private void TreeLoad(AssetsFileInstance fromFile, AssetTypeValueField assetField, long fromPathId, TreeViewItem treeItem)
+        {
+            if (assetField.childrenCount == 0) return;
+
+            int arrayIdx = 0;
+            List<TreeViewItem> items = new List<TreeViewItem>(assetField.childrenCount + 1);
+
+            AssetTypeTemplateField assetFieldTemplate = assetField.GetTemplateField();
+            bool isArray = assetFieldTemplate.isArray;
+
+            if (isArray)
+            {
+                int size = assetField.GetValue().AsArray().size;
+                AssetTypeTemplateField sizeTemplate = assetFieldTemplate.children[0];
+                TreeViewItem arrayIndexTreeItem = CreateTreeItem($"{sizeTemplate.type} {sizeTemplate.name} = {size}");
+                items.Add(arrayIndexTreeItem);
+            }
+
+            foreach (AssetTypeValueField childField in assetField.children)
+            {
+                if (childField == null) return;
+                string value = "";
+                if (childField.GetValue() != null)
+                {
+                    EnumValueTypes evt = childField.GetValue().GetValueType();
+                    string quote = "";
+                    if (evt == EnumValueTypes.String) quote = "\"";
+                    if (1 <= (int)evt && (int)evt <= 12)
+                    {
+                        value = $" = {quote}{childField.GetValue().AsString()}{quote}";
+                    }
+                    if (evt == EnumValueTypes.Array ||
+                        evt == EnumValueTypes.ByteArray)
+                    {
+                        value = $" (size {childField.childrenCount})";
+                    }
+                }
+
+                if (isArray)
+                {
+                    TreeViewItem arrayIndexTreeItem = CreateTreeItem($"{arrayIdx}");
+                    items.Add(arrayIndexTreeItem);
+
+                    TreeViewItem childTreeItem = CreateTreeItem($"{childField.GetFieldType()} {childField.GetName()}{value}");
+                    arrayIndexTreeItem.Items = new List<TreeViewItem>() { childTreeItem };
+
+                    if (childField.childrenCount > 0)
+                    {
+                        TreeViewItem dummyItem = CreateTreeItem("Loading...");
+                        childTreeItem.Items = new List<TreeViewItem>() { dummyItem };
+                        SetTreeItemEvents(childTreeItem, fromFile, fromPathId, childField);
+                    }
+
+                    arrayIdx++;
+                }
+                else
+                {
+                    TreeViewItem childTreeItem = CreateTreeItem($"{childField.GetFieldType()} {childField.GetName()}{value}");
+                    items.Add(childTreeItem);
+
+                    if (childField.childrenCount > 0)
+                    {
+                        TreeViewItem dummyItem = CreateTreeItem("Loading...");
+                        childTreeItem.Items = new List<TreeViewItem>() { dummyItem };
+                        SetTreeItemEvents(childTreeItem, fromFile, fromPathId, childField);
+                    }
+                }
+            }
+
+            string templateFieldType = assetField.templateField.type;
+            if (templateFieldType.StartsWith("PPtr<") && templateFieldType.EndsWith(">"))
+            {
+                var fileIdField = assetField.Get("m_FileID");
+                var pathIdField = assetField.Get("m_PathID");
+                bool pptrValid = !fileIdField.IsDummy() && !pathIdField.IsDummy();
+
+                if (pptrValid)
+                {
+                    int fileId = fileIdField.GetValue().AsInt();
+                    long pathId = pathIdField.GetValue().AsInt64();
+
+                    AssetContainer cont = workspace.GetAssetContainer(fromFile, fileId, pathId, false);
+
+                    TreeViewItem childTreeItem = CreateTreeItem($"[view asset]");
+                    items.Add(childTreeItem);
+
+                    TreeViewItem dummyItem = CreateTreeItem("Loading...");
+                    childTreeItem.Items = new List<TreeViewItem>() { dummyItem };
+                    SetPPtrEvents(childTreeItem, fromFile, pathId, cont);
+                }
+            }
+
+            treeItem.Items = items;
+        }
+    }
+
+    public class AssetDataTreeViewItem
+    {
+        public bool loaded;
+        public AssetsFileInstance fromFile;
+        public long fromPathId;
+
+        public AssetDataTreeViewItem(AssetsFileInstance fromFile, long fromPathId)
+        {
+            this.loaded = false;
+            this.fromFile = fromFile;
+            this.fromPathId = fromPathId;
+        }
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `baseField` last assigned on line 36 could be null and is dereferenced at line 38, column 13.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void AssetDataTreeView.LoadComponent(AssetContainer)
+
+### File:
+UABEAvalonia/AssetDataTreeView.cs
+
+### Key:
+AssetDataTreeView.cs|LoadComponent|NULL_DEREFERENCE
+
+### Node Key:
+0a2f2289efc1b4f27401d167fdf3ab36
+
+### Hash:
+ae3ba6ba176748ccddff32104e180bcf
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0024/instruction.md

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+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** luban
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+namespace Luban.Common.Utils
+{
+    public static class LogUtil
+    {
+        public static void InitSimpleNLogConfigure(NLog.LogLevel minConsoleLogLevel)
+        {
+            var logConfig = new NLog.Config.LoggingConfiguration();
+            //var layout = NLog.Layouts.Layout.FromString("${longdate}|${level:uppercase=true}|${threadid}|${message}${onexception:${newline}${exception:format=tostring}${exception:format=StackTrace}}");
+            var layout = NLog.Layouts.Layout.FromString("${longdate}|${message}${onexception:${newline}${exception:format=tostring}${exception:format=StackTrace}}");
+            logConfig.AddTarget("console", new NLog.Targets.ColoredConsoleTarget() { Layout = layout });
+            logConfig.AddRule(minConsoleLogLevel, NLog.LogLevel.Fatal, "console");
+            NLog.LogManager.Configuration = logConfig;
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (output of NLog.Targets.ColoredConsoleTarget::.ctor() at Line 10) of type NLog.Targets.ColoredConsoleTarget in method "Void LogUtil.InitSimpleNLogConfigure(LogLevel)".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void LogUtil.InitSimpleNLogConfigure(LogLevel)
+
+### File:
+src/Luban.Common/Source/Utils/LogUtil.cs
+
+### Key:
+LogUtil.cs|InitSimpleNLogConfigure|DOTNET_RESOURCE_LEAK
+
+### Hash:
+33fce8b9796d5ea4930c2b3942928fd5
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0102/instruction.md

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+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Mandrill-dotnet
+**Bug ID:** 2
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using Mandrill.Requests;
+using Mandrill.Utilities;
+using System;
+using System.IO;
+using System.Net;
+using System.Net.Http;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace Mandrill.Tests.UnitTests
+{
+  public class PostTests : IDisposable
+  {
+    public PostTests()
+    {
+      var responseMessage = new HttpResponseMessage();
+      var messageHandler = new FakeHttpMessageHandler(responseMessage);
+      httpClient = new HttpClient(messageHandler);
+    }
+    public void Dispose() {
+      httpClient?.Dispose();
+    }
+
+    private void RespondWith(MandrillApi api, HttpStatusCode statusCode, string content)
+    {
+      var responseMessage = new HttpResponseMessage(statusCode);
+      responseMessage.Content = new FakeHttpContent(content);
+      var messageHandler = new FakeHttpMessageHandler(responseMessage);
+      var httpClient = new HttpClient(messageHandler)
+      {
+          BaseAddress = new Uri(Configuration.BASE_SECURE_URL)
+      };
+      api.SetHttpClient(httpClient);
+    }
+
+    private HttpClient httpClient;
+
+    private class SampleObject
+    {
+      public string Name { get; set; }
+      public int Id { get; set; }
+    }
+
+    private class SamplePayload : RequestBase
+    {
+    }
+
+    [Fact]
+    public async Task Should_Serialize_Response_When_Json_Content_Is_Recieved()
+    {
+      string responseString = @"{
+	      ""Name"": ""Shawn"",
+	      ""Id"": 1
+      }";
+      var api = new MandrillApi("");
+      RespondWith(api, HttpStatusCode.OK, responseString);
+
+      SampleObject response = await api.Post<SampleObject>("", new SamplePayload());
+
+      Assert.Equal("Shawn", response.Name);
+      Assert.Equal(1, response.Id);
+    }
+
+    [Fact]
+    public async Task Should_Throw_Mandrill_Exception_When_Server_Error()
+    {
+      string responseString = @"{
+	      ""code"": ""501"",
+	      ""message"": ""m1"",
+	      ""name"": ""n1"",
+	      ""status"": ""s1""
+      }";
+
+      var api = new MandrillApi("");
+      RespondWith(api, HttpStatusCode.InternalServerError, responseString);
+
+      var ex = await Assert.ThrowsAsync<MandrillException>(async () => await api.Post<object>("", new SamplePayload()));
+      Assert.Equal(501, ex.Error.Code);
+      Assert.Equal("m1", ex.Error.Message);
+      Assert.Equal("n1", ex.Error.Name);
+      Assert.Equal("s1", ex.Error.Status);
+    }
+
+    [Fact]
+    public async Task Should_Allow_Multiple_Requests_With_Single_HttpClient()
+    {
+        string responseString = @"{
+	    ""Name"": ""Shawn"",
+	    ""Id"": 1
+        }";
+        var api = new MandrillApi("");
+        RespondWith(api, HttpStatusCode.OK, responseString);
+        await api.Post<SampleObject>("", new SamplePayload());
+        await api.Post<SampleObject>("", new SamplePayload());
+    }
+
+    [Fact]
+    public async Task Should_Throw_Mandrill_Exception_When_Serialization_Error()
+    {
+      string responseString = @"<html></html>";
+
+      var api = new MandrillApi("");
+      RespondWith(api, HttpStatusCode.OK, responseString);
+
+      var ex = await Assert.ThrowsAsync<MandrillSerializationException>(async () => await api.Post<object>("", new SamplePayload()));
+      var content = await ex.HttpResponseMessage.Content.ReadAsStringAsync().ConfigureAwait(false);
+      Assert.Equal(responseString, content);
+    }
+    public class FakeHttpMessageHandler : HttpMessageHandler
+    {
+      private HttpResponseMessage response;
+
+      public FakeHttpMessageHandler(HttpResponseMessage response)
+      {
+        this.response = response;
+      }
+
+      protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+      {
+        var responseTask = new TaskCompletionSource<HttpResponseMessage>();
+        responseTask.SetResult(response);
+
+        return responseTask.Task;
+      }
+    }
+
+    public class FakeHttpContent : HttpContent
+    {
+      public string Content { get; set; }
+
+      public FakeHttpContent(string content)
+      {
+        Content = content;
+      }
+
+      protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
+      {
+        byte[] byteArray = Encoding.ASCII.GetBytes(Content);
+        await stream.WriteAsync(byteArray, 0, Content.Length).ConfigureAwait(false);
+      }
+
+      protected override bool TryComputeLength(out long length)
+      {
+        length = Content.Length;
+        return true;
+      }
+    }
+
+  }
+}
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource httpClient of type System.Net.Http.HttpClient, Leaked resource messageHandler of type Mandrill.Tests.UnitTests.PostTests$FakeHttpMessageHandler, Leaked resource responseMessage of type System.Net.Http.HttpResponseMessage, Leaked resource (output of Mandrill.Tests.UnitTests.PostTests$FakeHttpContent::.ctor() at Line 29) of type Mandrill.Tests.UnitTests.PostTests$FakeHttpContent in method "Void PostTests.RespondWith(MandrillApi,HttpStatusCode,String)".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void PostTests.RespondWith(MandrillApi,HttpStatusCode,String)
+
+### File:
+tests/Mandrill.Tests/UnitTests/PostTests.cs
+
+### Key:
+PostTests.cs|RespondWith|DOTNET_RESOURCE_LEAK
+
+### Hash:
+61c50933994f3a8d1b0e87779d82a058
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0105/instruction.md

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+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** azure-functions-openapi-extension
+**Bug ID:** 3
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+
+using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Abstractions;
+using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Attributes;
+using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Extensions;
+
+using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Models;
+
+using Newtonsoft.Json.Serialization;
+
+namespace Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Visitors
+{
+    /// <summary>
+    /// This represents the visitor entity for type. This MUST be inherited.
+    /// </summary>
+    public abstract class TypeVisitor : IVisitor
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="TypeVisitor"/> class.
+        /// </summary>
+        /// <param name="visitorCollection"><see cref="VisitorCollection"/> instance.</param>
+        protected TypeVisitor(VisitorCollection visitorCollection)
+        {
+            this.VisitorCollection = visitorCollection.ThrowIfNullOrDefault();
+        }
+
+        /// <summary>
+        /// Gets the <see cref="Type"/> object.
+        /// </summary>
+        protected Type Type { get; private set; }
+
+        /// <summary>
+        /// Gets the <see cref="VisitorCollection"/>.
+        /// </summary>
+        protected VisitorCollection VisitorCollection { get; }
+
+        /// <inheritdoc />
+        public virtual bool IsVisitable(Type type)
+        {
+            return false;
+        }
+
+        /// <inheritdoc />
+        public virtual void Visit(IAcceptor acceptor, KeyValuePair<string, Type> type, NamingStrategy namingStrategy, params Attribute[] attributes)
+        {
+            return;
+        }
+
+        /// <inheritdoc />
+        public virtual bool IsNavigatable(Type type)
+        {
+            return false;
+        }
+
+        /// <inheritdoc />
+        public virtual bool IsParameterVisitable(Type type)
+        {
+            return false;
+        }
+
+        /// <inheritdoc />
+        public virtual OpenApiSchema ParameterVisit(Type type, NamingStrategy namingStrategy)
+        {
+            return default;
+        }
+
+        /// <inheritdoc />
+        public virtual bool IsPayloadVisitable(Type type)
+        {
+            return false;
+        }
+
+        /// <inheritdoc />
+        public virtual OpenApiSchema PayloadVisit(Type type, NamingStrategy namingStrategy)
+        {
+            return default;
+        }
+
+        /// <summary>
+        /// Checks whether the type is visitable or not.
+        /// </summary>
+        /// <param name="type">Type to check.</param>
+        /// <param name="code"><see cref="TypeCode"/> value.</param>
+        /// <returns>Returns <c>True</c>, if the type is visitable; otherwise returns <c>False</c>.</returns>
+        protected bool IsVisitable(Type type, TypeCode code)
+        {
+            var @enum = Type.GetTypeCode(type);
+            var isVisitable = @enum == code;
+
+            if (isVisitable)
+            {
+                this.Type = type;
+            }
+
+            return isVisitable;
+        }
+
+        /// <summary>
+        /// Checks whether the type can be referenced or not.
+        /// </summary>
+        /// <param name="type">Type to check.</param>
+        /// <returns>Returns <c>True</c>, if the type can be referenced; otherwise returns <c>False</c>.</returns>
+        protected bool IsReferential(Type type)
+        {
+            var isReferential = type.IsReferentialType();
+
+            return isReferential;
+        }
+
+        /// <summary>
+        /// Visits and processes the acceptor.
+        /// </summary>
+        /// <param name="acceptor"><see cref="IAcceptor"/> instance.</param>
+        /// <param name="name">Property name.</param>
+        /// <param name="title">Type name.</param>
+        /// <param name="dataType">Data type.</param>
+        /// <param name="dataFormat">Data format.</param>
+        /// <param name="attributes">List of attribute instances.</param>
+        /// <returns>Returns the name as the schema key.</returns>
+        protected string Visit(IAcceptor acceptor, string name, string title, string dataType, string dataFormat, params Attribute[] attributes)
+        {
+            var instance = acceptor as OpenApiSchemaAcceptor;
+            if (instance.IsNullOrDefault())
+            {
+                return null;
+            }
+
+            if (instance.Schemas.ContainsKey(name))
+            {
+                return null;
+            }
+
+            var schema = new OpenApiSchema()
+            {
+                Title = title,
+                Type = dataType,
+                Format = dataFormat
+            };
+
+            // Adds the extra properties.
+            if (attributes.Any())
+            {
+                schema.ApplyValidationAttributes(attributes.OfType<ValidationAttribute>());
+
+                Attribute attr = attributes.OfType<OpenApiPropertyAttribute>().SingleOrDefault();
+                if (!attr.IsNullOrDefault())
+                {
+                    if (dataType != "object")
+                    {
+                        schema.Nullable = this.GetOpenApiPropertyNullable(attr as OpenApiPropertyAttribute);
+                        schema.Default = this.GetOpenApiPropertyDefault(attr as OpenApiPropertyAttribute);
+                    }
+                    schema.Description = this.GetOpenApiPropertyDescription(attr as OpenApiPropertyAttribute);
+                }
+
+                attr = attributes.OfType<OpenApiSchemaVisibilityAttribute>().SingleOrDefault();
+                if (!attr.IsNullOrDefault())
+                {
+                    var extension = new OpenApiString((attr as OpenApiSchemaVisibilityAttribute).Visibility.ToDisplayName());
+
+                    schema.Extensions.Add("x-ms-visibility", extension);
+                }
+            }
+
+            instance.Schemas.Add(name, schema);
+
+            return name;
+        }
+
+        /// <summary>
+        /// Visits and processes the <see cref="OpenApiSchema"/> for parameters.
+        /// </summary>
+        /// <param name="dataType">Data type.</param>
+        /// <param name="dataFormat">Data format.</param>
+        /// <returns>Returns <see cref="OpenApiSchema"/> instance.</returns>
+        protected OpenApiSchema ParameterVisit(string dataType, string dataFormat)
+        {
+            var schema = new OpenApiSchema()
+            {
+                Type = dataType,
+                Format = dataFormat
+            };
+
+            return schema;
+        }
+
+        /// <summary>
+        /// Visits and processes the <see cref="OpenApiSchema"/> for payloads.
+        /// </summary>
+        /// <param name="dataType">Data type.</param>
+        /// <param name="dataFormat">Data format.</param>
+        /// <returns>Returns <see cref="OpenApiSchema"/> instance.</returns>
+        protected OpenApiSchema PayloadVisit(string dataType, string dataFormat)
+        {
+            var schema = new OpenApiSchema()
+            {
+                Type = dataType,
+                Format = dataFormat
+            };
+
+            return schema;
+        }
+
+        /// <summary>
+        /// Gets the value indicating whether the property is nullable or not.
+        /// </summary>
+        /// <param name="attr"><see cref="OpenApiPropertyAttribute"/> instance.</param>
+        /// <returns>Returns <c>True</c>, if nullable; otherwise returns <c>False</c>.</returns>
+        protected bool GetOpenApiPropertyNullable(OpenApiPropertyAttribute attr)
+        {
+            return attr.Nullable;
+        }
+
+        /// <summary>
+        /// Gets the default value from the <see cref="OpenApiPropertyAttribute"/> instance.
+        /// </summary>
+        /// <param name="attr"><see cref="OpenApiPropertyAttribute"/> instance.</param>
+        /// <returns>Returns the default data.</returns>
+        protected IOpenApiAny GetOpenApiPropertyDefault(OpenApiPropertyAttribute attr)
+        {
+            var @default = attr.Default;
+            if (@default.IsNullOrDefault())
+            {
+                return null;
+            }
+
+            if (@default is bool)
+            {
+                return new OpenApiBoolean((bool) @default);
+            }
+
+            if (@default is DateTime)
+            {
+                return new OpenApiDateTime((DateTime) @default);
+            }
+
+            if (@default is DateTimeOffset)
+            {
+                return new OpenApiDateTime((DateTimeOffset) @default);
+            }
+
+            if (@default is float)
+            {
+                return new OpenApiFloat((float) @default);
+            }
+
+            if (@default is double)
+            {
+                return new OpenApiDouble((double) @default);
+            }
+
+            if (@default is decimal)
+            {
+                return new OpenApiDouble(Convert.ToDouble(@default));
+            }
+
+            if (@default is short)
+            {
+                return new OpenApiInteger((short) @default);
+            }
+
+            if (@default is int)
+            {
+                return new OpenApiInteger((int) @default);
+            }
+
+            if (@default is long)
+            {
+                return new OpenApiLong((long) @default);
+            }
+
+            if (@default is ushort)
+            {
+                return new OpenApiInteger(Convert.ToInt16(@default));
+            }
+
+            if (@default is uint)
+            {
+                return new OpenApiInteger(Convert.ToInt32(@default));
+            }
+
+            if (@default is ulong)
+            {
+                return new OpenApiLong(Convert.ToInt64(@default));
+            }
+
+            if (@default is Guid)
+            {
+                return new OpenApiString(Convert.ToString(@default));
+            }
+
+            return new OpenApiString((string) @default);
+        }
+
+        /// <summary>
+        /// Gets the default value from the <see cref="OpenApiPropertyAttribute"/> instance.
+        /// </summary>
+        /// <typeparam name="T">Type to compare.</typeparam>
+        /// <param name="attr"><see cref="OpenApiPropertyAttribute"/> instance.</param>
+        /// <returns>Returns the default data.</returns>
+        protected IOpenApiAny GetOpenApiPropertyDefault<T>(OpenApiPropertyAttribute attr)
+        {
+            var @default = attr.Default;
+            if (@default.IsNullOrDefault())
+            {
+                return null;
+            }
+
+            if (typeof(T) == typeof(short))
+            {
+                return new OpenApiInteger((short) @default);
+            }
+
+            if (typeof(T) == typeof(int))
+            {
+                return new OpenApiInteger((int) @default);
+            }
+
+            if (typeof(T) == typeof(long))
+            {
+                return new OpenApiLong((long) @default);
+            }
+
+            if (@default is ushort)
+            {
+                return new OpenApiInteger(Convert.ToInt16(@default));
+            }
+
+            if (@default is uint)
+            {
+                return new OpenApiInteger(Convert.ToInt32(@default));
+            }
+
+            if (@default is ulong)
+            {
+                return new OpenApiLong(Convert.ToInt64(@default));
+            }
+
+            if (typeof(T) == typeof(string) && @default.GetType().IsEnumType())
+            {
+                var @enum = (Enum)Convert.ChangeType(@default, typeof(Enum));
+
+                return new OpenApiString((string) EnumExtensions.ToDisplayName(@enum));
+            }
+
+            return new OpenApiString((string) @default);
+        }
+
+        /// <summary>
+        /// Gets the property description.
+        /// </summary>
+        /// <param name="attr"><see cref="OpenApiPropertyAttribute"/> instance.</param>
+        /// <returns>Returns the property description.</returns>
+        protected string GetOpenApiPropertyDescription(OpenApiPropertyAttribute attr)
+        {
+            return attr.Description;
+        }
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `instance` last assigned on line 125 could be null and is dereferenced at line 131, column 13.
+
+### Severity:
+ERROR
+
+### Procedure:
+String TypeVisitor.Visit(IAcceptor,String,String,String,String,Attribute[])
+
+### File:
+src/Microsoft.Azure.WebJobs.Extensions.OpenApi.Core/Visitors/TypeVisitor.cs
+
+### Key:
+TypeVisitor.cs|Visit|NULL_DEREFERENCE
+
+### Node Key:
+cd898c0a5096d52146136ed94834c132
+
+### Hash:
+4f0543853d960e01f9c15cc682e178ad
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0133/instruction.md

@@ -0,0 +1,142 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Rhisis
+**Bug ID:** 2
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+using Rhisis.Core.Common;
+using Rhisis.Core.DependencyInjection;
+using Rhisis.Core.Helpers;
+using Rhisis.Database.Context;
+using System;
+
+namespace Rhisis.Database
+{
+    public sealed class DatabaseFactory : Singleton<DatabaseFactory>, IDesignTimeDbContextFactory<DatabaseContext>
+    {
+        private const string MigrationConfigurationEnv = "DB_CONFIG";
+
+        public DatabaseConfiguration Configuration { get; private set; }
+
+        /// <summary>
+        /// Initialize the <see cref="DatabaseFactory"/> and Data Access Layer assembly.
+        /// </summary>
+        public void Initialize()
+        {
+            DependencyContainer.Instance.Register<IDatabase, Database>();
+        }
+
+        /// <summary>
+        /// Initialize the <see cref="DatabaseFactory"/>.
+        /// </summary>
+        /// <param name="databaseConfigurationPath"></param>
+        public void Initialize(string databaseConfigurationPath) 
+            => this.Initialize(ConfigurationHelper.Load<DatabaseConfiguration>(databaseConfigurationPath));
+
+        /// <summary>
+        /// Initialize the <see cref="DatabaseFactory"/>.
+        /// </summary>
+        /// <param name="configuration">Database configuration object</param>
+        public void Initialize(DatabaseConfiguration configuration)
+        {
+            this.Configuration = configuration;
+
+            using (var dbContext = this.CreateDbContext())
+            {
+                dbContext.Migrate();
+                if (!dbContext.DatabaseExists())
+                    throw new InvalidOperationException($"The database '{this.Configuration.Database}' doesn't exists.");
+            }
+
+            this.Initialize();
+        }
+
+        /// <summary>
+        /// Creates a new <see cref="DatabaseContext"/>.
+        /// </summary>
+        /// <returns></returns>
+        public DatabaseContext CreateDbContext() => this.CreateDbContext(this.Configuration);
+
+        /// <summary>
+        /// Creates a new <see cref="DatabaseContext"/> with a specific configuration.
+        /// </summary>
+        /// <param name="configuration"></param>
+        /// <returns></returns>
+        public DatabaseContext CreateDbContext(DatabaseConfiguration configuration) => new DatabaseContext(configuration);
+
+        /// <summary>
+        /// Creates a new <see cref="DatabaseContext"/> by passing context options.
+        /// </summary>
+        /// <param name="options"></param>
+        /// <returns></returns>
+        public DatabaseContext CreateDbContext(DbContextOptions options) => new DatabaseContext(options);
+
+        /// <inheritdoc />
+        public DatabaseContext CreateDbContext(string[] args)
+        {
+            var configurationPath = Environment.GetEnvironmentVariable(MigrationConfigurationEnv);
+            var configuration = ConfigurationHelper.Load<DatabaseConfiguration>(configurationPath);
+            var context = new DatabaseContext(configuration);
+
+            if (!string.IsNullOrEmpty(configurationPath) && !context.DatabaseExists())
+                throw new InvalidOperationException($"The database '{configuration.Database}' doesn't exists.");
+
+            return context;
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource return of type Microsoft.EntityFrameworkCore.DbContext, Leaked resource context of type Microsoft.EntityFrameworkCore.DbContext in method "DatabaseContext DatabaseFactory.CreateDbContext(String[])".
+
+### Severity:
+ERROR
+
+### Procedure:
+DatabaseContext DatabaseFactory.CreateDbContext(String[])
+
+### File:
+src/Rhisis.Database/DatabaseFactory.cs
+
+### Key:
+DatabaseFactory.cs|CreateDbContext|DOTNET_RESOURCE_LEAK
+
+### Hash:
+a0b28d053da435d30dff346c03fbb819
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0134/instruction.md

@@ -0,0 +1,120 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Rhisis
+**Bug ID:** 5
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using Microsoft.Extensions.DependencyInjection;
+using Rhisis.Game.Abstractions.Entities;
+using Rhisis.Game.Abstractions.Features;
+using Rhisis.Game.Abstractions.Systems;
+using Rhisis.Game.Common;
+using Rhisis.Network;
+using Rhisis.Network.Snapshots;
+using System;
+
+namespace Rhisis.Game.Abstractions.Components
+{
+    public class Health : IHealth
+    {
+        private readonly IMover _mover;
+        private readonly Lazy<IHealthFormulas> _healthFormulas;
+
+        public bool IsDead => Hp < 0;
+
+        public int Hp { get; set; }
+
+        public int Mp { get; set; }
+
+        public int Fp { get; set; }
+
+        public int MaxHp => _healthFormulas.Value.GetMaxHp(_mover);
+
+        public int MaxMp => _healthFormulas.Value.GetMaxMp(_mover);
+
+        public int MaxFp => _healthFormulas.Value.GetMaxFp(_mover);
+
+        /// <summary>
+        /// Creates a new <see cref="Health"/> instance.
+        /// </summary>
+        /// <param name="player">Current player.</param>
+        public Health(IMover mover)
+        {
+            _mover = mover;
+            _healthFormulas = new Lazy<IHealthFormulas>(() => mover.Systems.GetService<IHealthFormulas>());
+        }
+
+        public void RegenerateAll()
+        {
+            Hp = MaxHp;
+            Mp = MaxMp;
+            Fp = MaxFp;
+
+            using var healthSnapshot = new FFSnapshot();
+            healthSnapshot.Merge(new UpdateParamPointSnapshot(_mover, DefineAttributes.HP, Hp));
+            healthSnapshot.Merge(new UpdateParamPointSnapshot(_mover, DefineAttributes.MP, Mp));
+            healthSnapshot.Merge(new UpdateParamPointSnapshot(_mover, DefineAttributes.FP, Fp));
+
+            _mover.SendToVisible(healthSnapshot);
+
+            if (_mover is IPlayer)
+            {
+                _mover.Send(healthSnapshot);
+            }
+
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (output of Rhisis.Network.Snapshots.UpdateParamPointSnapshot::.ctor() at Line 50) of type Sylver.Network.Data.NetPacketStream, Leaked resource (output of Rhisis.Network.Snapshots.UpdateParamPointSnapshot::.ctor() at Line 49) of type Sylver.Network.Data.NetPacketStream, Leaked resource (output of Rhisis.Network.Snapshots.UpdateParamPointSnapshot::.ctor() at Line 48) of type Sylver.Network.Data.NetPacketStream in method "Void Health.RegenerateAll()".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void Health.RegenerateAll()
+
+### File:
+src/Rhisis.Game/Features/Health.cs
+
+### Key:
+Health.cs|RegenerateAll|DOTNET_RESOURCE_LEAK
+
+### Hash:
+62a7a3edfca648cef7d92b28d56f8518
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0150/instruction.md

@@ -0,0 +1,383 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Xabe.FFmpeg
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Linq;
+using Xabe.FFMpeg.Enums;
+
+namespace Xabe.FFMpeg
+{
+    /// <summary>
+    ///     Information about media file
+    /// </summary>
+    public class VideoInfo : IDisposable
+    {
+        /// <summary>
+        ///     _sourceFile info
+        /// </summary>
+
+        public readonly string FilePath;
+
+        /// <summary>
+        ///     Return extension of file
+        /// </summary>
+        public string Extension => Path.GetExtension(FilePath);
+
+        private FFMpeg _ffmpeg;
+
+        /// <summary>
+        ///     Fires when conversion progress changed
+        /// </summary>
+        public ConversionHandler OnConversionProgress;
+
+        /// <summary>
+        ///     Get VideoInfo from file
+        /// </summary>
+        /// <param name="sourceFileInfo">_sourceFile</param>
+        public VideoInfo(FileInfo sourceFileInfo) : this(sourceFileInfo.FullName)
+        {
+        }
+
+        /// <summary>
+        ///     Get VideoInfo from file
+        /// </summary>
+        /// <param name="filePath">FilePath to file</param>
+        public VideoInfo(string filePath)
+        {
+            if(!File.Exists(filePath))
+            {
+                throw new ArgumentException($"Input file {filePath} doesn't exists.");
+            }
+            FilePath = filePath;
+            new FFProbe().ProbeDetails(this);
+        }
+
+        private FFMpeg FFmpeg
+        {
+            get
+            {
+                if(_ffmpeg != null &&
+                   _ffmpeg.IsRunning)
+                    throw new InvalidOperationException(
+                        "Operation on this file is in progress.");
+
+                return _ffmpeg ?? (_ffmpeg = new FFMpeg());
+            }
+        }
+
+        /// <summary>
+        ///     duration of video
+        /// </summary>
+        public TimeSpan Duration { get; internal set; }
+
+        /// <summary>
+        ///     Audio format
+        /// </summary>
+        public string AudioFormat { get; internal set; }
+
+        /// <summary>
+        ///     Video format
+        /// </summary>
+        public string VideoFormat { get; internal set; }
+
+        /// <summary>
+        ///     Screen ratio
+        /// </summary>
+        public string Ratio { get; internal set; }
+
+        /// <summary>
+        ///     Frame rate
+        /// </summary>
+        public double FrameRate { get; internal set; }
+
+        /// <summary>
+        ///     Height
+        /// </summary>
+        public int Height { get; internal set; }
+
+        /// <summary>
+        ///     Width
+        /// </summary>
+        public int Width { get; internal set; }
+
+        /// <summary>
+        ///     size
+        /// </summary>
+        public double Size { get; internal set; }
+
+        /// <summary>
+        ///     Get the ffmpeg process status
+        /// </summary>
+        public bool IsRunning => FFmpeg.IsRunning;
+
+        /// <summary>
+        ///     Create VideoInfo from file
+        /// </summary>
+        /// <param name="fileInfo">_sourceFile</param>
+        /// <returns>VideoInfo</returns>
+        public static VideoInfo FromFile(FileInfo fileInfo)
+        {
+            return new VideoInfo(fileInfo);
+        }
+
+        /// <summary>
+        ///     Get formated info about video
+        /// </summary>
+        /// <returns>Formated info about vidoe</returns>
+        public override string ToString()
+        {
+            return "Video FilePath : " + FilePath + Environment.NewLine +
+                   "Video Root : " + Path.GetDirectoryName(FilePath)+ Environment.NewLine +
+                   "Video Name: " + Path.GetFileName(FilePath) + Environment.NewLine +
+                   "Video Extension : " + Extension + Environment.NewLine +
+                   "Video duration : " + Duration + Environment.NewLine +
+                   "Audio format : " + AudioFormat + Environment.NewLine +
+                   "Video format : " + VideoFormat + Environment.NewLine +
+                   "Aspect Ratio : " + Ratio + Environment.NewLine +
+                   "Framerate : " + FrameRate + "fps" + Environment.NewLine +
+                   "Resolution : " + Width + "x" + Height + Environment.NewLine +
+                   "Size : " + Size + " MB";
+        }
+
+        /// <summary>
+        ///     Convert file to TS
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToTs(string outputPath)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToTs(this, outputPath);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Convert file to WebM
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <param name="size">Dimension</param>
+        /// <param name="audioQuality">Audio quality</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToWebM(string outputPath, VideoSize size = VideoSize.Original, AudioQuality audioQuality = AudioQuality.Normal)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToWebM(this, outputPath, size, audioQuality);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Convert file to OGV
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <param name="size">Dimension</param>
+        /// <param name="audioQuality">Audio quality</param>
+        /// <param name="multithread">Use multithread</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToOgv(string outputPath, VideoSize size = VideoSize.Original, AudioQuality audioQuality = AudioQuality.Normal, bool multithread = false)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToOgv(this, outputPath, size, audioQuality, multithread);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Convert file to MP4
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <param name="speed">Conversion speed</param>
+        /// <param name="size">Dimension</param>
+        /// <param name="audioQuality">Audio quality</param>
+        /// <param name="multithread">Use multithread</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToMp4(string outputPath, Speed speed = Speed.SuperFast,
+            VideoSize size = VideoSize.Original, AudioQuality audioQuality = AudioQuality.Normal, bool multithread = false)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToMp4(this, outputPath, speed, size, audioQuality, multithread);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Extract video from file
+        /// </summary>
+        /// <param name="output">Output audio stream</param>
+        /// <returns>Conversion result</returns>
+        public bool ExtractVideo(string output)
+        {
+            return FFmpeg.ExtractVideo(this, output);
+        }
+
+        /// <summary>
+        ///     Extract audio from file
+        /// </summary>
+        /// <param name="output">Output video stream</param>
+        /// <returns>Conversion result</returns>
+        public bool ExtractAudio(string output)
+        {
+            return FFmpeg.ExtractAudio(this, output);
+        }
+
+        /// <summary>
+        ///     Add audio to file
+        /// </summary>
+        /// <param name="audio">Audio file</param>
+        /// <param name="output">Output file</param>
+        /// <returns>Conversion result</returns>
+        public bool AddAudio(FileInfo audio, string output)
+        {
+            return FFmpeg.AddAudio(this, audio, output);
+        }
+
+        /// <summary>
+        ///     Get snapshot of video
+        /// </summary>
+        /// <param name="size">Dimension of snapshot</param>
+        /// <param name="captureTime"></param>
+        /// <returns>Snapshot</returns>
+        public Bitmap Snapshot(Size? size = null, TimeSpan? captureTime = null)
+        {
+            var output = $"{Environment.TickCount}.png";
+
+            bool success = FFmpeg.Snapshot(this, output, size, captureTime);
+
+            if(!success)
+                throw new OperationCanceledException("Could not take snapshot!");
+
+            Bitmap result;
+
+            using(Image bmp = Image.FromFile(output))
+            {
+                using(var ms = new MemoryStream())
+                {
+                    bmp.Save(ms, ImageFormat.Png);
+
+                    result = new Bitmap(ms);
+                }
+            }
+
+            if(File.Exists(output))
+                File.Delete(output);
+
+            return result;
+        }
+
+        /// <summary>
+        ///     Saves snapshot of video
+        /// </summary>
+        /// <param name="output">Output file</param>
+        /// <param name="size">Dimension of snapshot</param>
+        /// <param name="captureTime"></param>
+        /// <returns>Snapshot</returns>
+        public Bitmap Snapshot(string output, Size? size = null, TimeSpan? captureTime = null)
+        {
+            bool success = FFmpeg.Snapshot(this, output, size, captureTime);
+
+            if(!success)
+                throw new OperationCanceledException("Could not take snapshot!");
+
+            Bitmap result;
+
+
+            using(Image bmp = Image.FromFile(System.IO.Path.ChangeExtension(output, ".png")))
+            {
+                result = (Bitmap) bmp.Clone();
+            }
+
+            return result;
+        }
+
+        /// <summary>
+        ///     Concat multiple videos
+        /// </summary>
+        /// <param name="output">Concatenated videos</param>
+        /// <param name="videos">Videos to add</param>
+        /// <returns>Conversion result</returns>
+        public bool JoinWith(string output, params VideoInfo[] videos)
+        {
+            List<VideoInfo> queuedVideos = videos.ToList();
+
+            queuedVideos.Insert(0, this);
+
+            return FFmpeg.Join(output, queuedVideos.ToArray());
+        }
+
+        /// <inheritdoc />
+        public void Dispose()
+        {
+            FFmpeg.Stop();
+            _ffmpeg?.Dispose();
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (returned from Xabe.FFMpeg.FFMpeg Xabe.FFMpeg.VideoInfo::get_FFmpeg() at Line 286) of type Xabe.FFMpeg.FFMpeg in method "Bitmap VideoInfo.Snapshot(String,Nullable`1<!0>,Nullable`1<!0>)".
+
+### Severity:
+ERROR
+
+### Procedure:
+Bitmap VideoInfo.Snapshot(String,Nullable`1<!0>,Nullable`1<!0>)
+
+### File:
+Xabe.FFMpeg/VideoInfo.cs
+
+### Key:
+VideoInfo.cs|Snapshot|DOTNET_RESOURCE_LEAK
+
+### Hash:
+92597941ea68210d8e69b13d90bd76c8
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0151/instruction.md

@@ -0,0 +1,217 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Xabe.FFmpeg
+**Bug ID:** 10
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Drawing;
+using System.IO;
+using Xabe.FFMpeg.Enums;
+using Xunit;
+
+namespace Xabe.FFMpeg.Test
+{
+    public class VideoInfoTests
+
+    {
+        private static readonly FileInfo SampleVideoWithAudio = new FileInfo(Path.Combine(Environment.CurrentDirectory, "Resources", "input.mp4"));
+        private static readonly FileInfo SampleAudio = new FileInfo(Path.Combine(Environment.CurrentDirectory, "Resources", "audio.mp3"));
+        private static readonly FileInfo SampleVideo = new FileInfo(Path.Combine(Environment.CurrentDirectory, "Resources", "mute.mp4"));
+        private static readonly FileInfo SampleMkvVideo = new FileInfo(Path.Combine(Environment.CurrentDirectory, "Resources", "sampleMkv.mkv"));
+
+
+        [Fact]
+        public void ToTs()
+        {
+            FileInfo fileInfo = SampleVideoWithAudio;
+            var output = Path.ChangeExtension(Path.GetTempFileName(), ".ts");
+
+            VideoInfo outputVideo = new VideoInfo(fileInfo).ToTs(output);
+            Assert.True(File.Exists(outputVideo.FilePath));
+            Assert.Equal(TimeSpan.FromSeconds(13), outputVideo.Duration);
+        }
+
+        [Fact]
+        public void ToWebM()
+        {
+            FileInfo fileInfo = SampleVideoWithAudio;
+            var output = Path.ChangeExtension(Path.GetTempFileName(), ".webm");
+
+            VideoInfo outputVideo = new VideoInfo(fileInfo).ToWebM(output);
+            Assert.True(File.Exists(outputVideo.FilePath));
+            Assert.Equal(TimeSpan.FromSeconds(13), outputVideo.Duration);
+        }
+
+        [Fact]
+        public void ToOGV()
+        {
+            FileInfo fileInfo = SampleVideoWithAudio;
+            var output = Path.ChangeExtension(Path.GetTempFileName(), ".ogv");
+
+            VideoInfo outputVideo = new VideoInfo(fileInfo).ToOgv(output);
+            Assert.True(File.Exists(outputVideo.FilePath));
+            Assert.Equal(TimeSpan.FromSeconds(13), outputVideo.Duration);
+        }
+
+        [Fact]
+        public void ToMp4()
+        {
+            FileInfo fileInfo = SampleMkvVideo;
+            var output = Path.ChangeExtension(Path.GetTempFileName(), ".mp4");
+
+            VideoInfo outputVideo = new VideoInfo(fileInfo).ToMp4(output);
+            Assert.True(File.Exists(outputVideo.FilePath));
+            Assert.Equal(TimeSpan.FromSeconds(30), outputVideo.Duration);
+        }
+
+        [Fact]
+        public void AddAudio()
+        {
+            var videoInfo = new VideoInfo(SampleVideo);
+            var output = Path.ChangeExtension(Path.GetTempFileName(), videoInfo.Extension);
+
+            bool result = videoInfo.AddAudio(SampleAudio, output);
+            Assert.True(result);
+            Assert.Equal(videoInfo.Duration, new VideoInfo(output).Duration);
+        }
+
+        [Fact]
+        public void ExtractAudio()
+        {
+            FileInfo fileInfo = SampleVideoWithAudio;
+            var output = Path.ChangeExtension(Path.GetTempFileName(), ".mp3");
+
+            bool result = new VideoInfo(fileInfo).ExtractAudio(output);
+            Assert.True(result);
+        }
+
+        [Fact]
+        public void ExtractVideo()
+        {
+            FileInfo fileInfo = SampleVideoWithAudio;
+            var output = Path.ChangeExtension(Path.GetTempFileName(), fileInfo.Extension);
+
+            bool result = new VideoInfo(fileInfo).ExtractVideo(output);
+            Assert.True(result);
+        }
+
+        [Fact]
+        public void JoinWith()
+        {
+            var videoInfo = new VideoInfo(SampleVideoWithAudio);
+            var output = Path.ChangeExtension(Path.GetTempFileName(), videoInfo.Extension);
+
+            bool result = videoInfo.JoinWith(output, new VideoInfo(SampleVideo));
+
+            Assert.True(result);
+        }
+
+        [Fact]
+        public void MkvPropertiesTest()
+        {
+            var videoInfo = new VideoInfo(SampleMkvVideo);
+
+            Assert.Equal("none", videoInfo.AudioFormat);
+            Assert.Equal(TimeSpan.FromSeconds(30), videoInfo.Duration);
+            Assert.True(File.Exists(videoInfo.FilePath));
+            Assert.Equal(".mkv", videoInfo.Extension);
+            Assert.Equal(29.97, videoInfo.FrameRate);
+            Assert.Equal(1080, videoInfo.Height);
+            Assert.Equal(1920, videoInfo.Width);
+            Assert.Equal("sampleMkv.mkv", Path.GetFileName(videoInfo.FilePath));
+            Assert.False(videoInfo.IsRunning);
+            Assert.Equal("16:9", videoInfo.Ratio);
+        }
+
+        [Fact]
+        public void PropertiesTest()
+        {
+            var videoInfo = new VideoInfo(SampleVideoWithAudio);
+
+            Assert.Equal("aac", videoInfo.AudioFormat);
+            Assert.Equal(TimeSpan.FromSeconds(13), videoInfo.Duration);
+            Assert.True(File.Exists(videoInfo.FilePath));
+            Assert.Equal(".mp4", videoInfo.Extension);
+            Assert.Equal(25, videoInfo.FrameRate);
+            Assert.Equal(720, videoInfo.Height);
+            Assert.Equal(1280, videoInfo.Width);
+            Assert.Equal("input.mp4", Path.GetFileName(videoInfo.FilePath));
+            Assert.False(videoInfo.IsRunning);
+            Assert.Equal("16:9", videoInfo.Ratio);
+        }
+
+        [Fact]
+        public void Snapshot()
+        {
+            var videoInfo = new VideoInfo(SampleVideoWithAudio);
+            Image snapshot = videoInfo.Snapshot();
+
+            Assert.Equal(snapshot.Width, videoInfo.Width);
+        }
+
+        [Fact]
+        public void SnapshotWithOutput()
+        {
+            var videoInfo = new VideoInfo(SampleVideoWithAudio);
+            var output = Path.Combine(Path.GetTempPath(), Guid.NewGuid() + Extensions.Png); 
+            Image snapshot = videoInfo.Snapshot(output);
+
+            Assert.Equal(snapshot.Width, videoInfo.Width);
+            Assert.True(File.Exists(output));
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource outputVideo of type Xabe.FFMpeg.VideoInfo, Leaked resource (output of Xabe.FFMpeg.VideoInfo::.ctor() at Line 46) of type Xabe.FFMpeg.VideoInfo in method "Void VideoInfoTests.ToOGV()".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void VideoInfoTests.ToOGV()
+
+### File:
+Xabe.FFMpeg.Test/VideoInfoTests.cs
+
+### Key:
+VideoInfoTests.cs|ToOGV|DOTNET_RESOURCE_LEAK
+
+### Hash:
+9ad643a6d4c49516eccb2a12f7481a84
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0158/instruction.md

@@ -0,0 +1,428 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Xabe.FFmpeg
+**Bug ID:** 15
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Linq;
+using JetBrains.Annotations;
+using Xabe.FFMpeg.Enums;
+
+namespace Xabe.FFMpeg
+{
+    /// <inheritdoc cref="IVideoInfo" />
+    public class VideoInfo: IDisposable, IVideoInfo
+    {
+        private FFMpeg _ffmpeg;
+
+        /// <inheritdoc />
+        public VideoInfo(FileInfo sourceFileInfo): this(sourceFileInfo.FullName)
+        {
+        }
+
+        /// <summary>
+        ///     Get VideoInfo from file
+        /// </summary>
+        /// <param name="filePath">FilePath to file</param>
+        public VideoInfo(string filePath)
+        {
+            if(!File.Exists(filePath))
+                throw new ArgumentException($"Input file {filePath} doesn't exists.");
+            FilePath = filePath;
+            new FFProbe().ProbeDetails(this);
+        }
+
+        private FFMpeg FFmpeg
+        {
+            get
+            {
+                if(_ffmpeg != null &&
+                   _ffmpeg.IsRunning)
+                    throw new InvalidOperationException(
+                        "Operation on this file is in progress.");
+
+                return _ffmpeg ?? (_ffmpeg = new FFMpeg());
+            }
+        }
+
+        /// <inheritdoc cref="IVideoInfo.Dispose" />
+        public void Dispose()
+        {
+            FFmpeg.Stop();
+            _ffmpeg?.Dispose();
+        }
+
+        /// <inheritdoc />
+        public string FilePath { get; }
+
+        /// <inheritdoc />
+        public ConversionHandler OnConversionProgress { get; set; }
+
+
+        /// <inheritdoc />
+        public string Extension => Path.GetExtension(FilePath);
+
+
+        /// <inheritdoc />
+        public TimeSpan Duration { get; internal set; }
+
+        /// <inheritdoc />
+        public string AudioFormat { get; internal set; }
+
+
+        /// <inheritdoc />
+        public string VideoFormat { get; internal set; }
+
+
+        /// <inheritdoc />
+        public string Ratio { get; internal set; }
+
+        /// <inheritdoc />
+        public double FrameRate { get; internal set; }
+
+        /// <inheritdoc />
+        public int Height { get; internal set; }
+
+        /// <inheritdoc />
+        public int Width { get; internal set; }
+
+        /// <inheritdoc />
+        public double Size { get; internal set; }
+
+        /// <inheritdoc />
+        public bool IsRunning => FFmpeg.IsRunning;
+
+
+        /// <inheritdoc cref="IVideoInfo.ToString" />
+        public override string ToString()
+        {
+            return "Video FilePath : " + FilePath + Environment.NewLine +
+                   "Video Root : " + Path.GetDirectoryName(FilePath) + Environment.NewLine +
+                   "Video Name: " + Path.GetFileName(FilePath) + Environment.NewLine +
+                   "Video Extension : " + Extension + Environment.NewLine +
+                   "Video duration : " + Duration + Environment.NewLine +
+                   "Audio format : " + AudioFormat + Environment.NewLine +
+                   "Video format : " + VideoFormat + Environment.NewLine +
+                   "Aspect Ratio : " + Ratio + Environment.NewLine +
+                   "Framerate : " + FrameRate + "fps" + Environment.NewLine +
+                   "Resolution : " + Width + "x" + Height + Environment.NewLine +
+                   "Size : " + Size + " MB";
+        }
+
+
+        /// <inheritdoc />
+        public bool ToTs(string outputPath)
+        {
+            return new Conversion()
+                .SetInput(FilePath)
+                .StreamCopy(Channel.Both)
+                .SetBitstreamFilter(Channel.Video, Filter.H264_Mp4ToAnnexB)
+                .SetCodec(VideoCodec.MpegTs)
+                .SetOutput(outputPath)
+                .Start();
+        }
+
+
+        /// <inheritdoc />
+        public bool ToWebM(string outputPath, string size = "", AudioQuality audioQuality = AudioQuality.Normal)
+        {
+            return new Conversion()
+                .SetInput(FilePath)
+                .SetScale(size)
+                .SetVideo(VideoCodec.LibVpx, 2400)
+                .SetSpeed(16)
+                .SetAudio(AudioCodec.LibVorbis, audioQuality)
+                .SetOutput(outputPath)
+                .Start();
+        }
+
+
+        /// <inheritdoc />
+        public bool ToOgv(string outputPath, string size = "", AudioQuality audioQuality = AudioQuality.Normal, bool multithread = false)
+        {
+            return new Conversion()
+                .SetInput(FilePath)
+                .SetScale(size)
+                .SetVideo(VideoCodec.LibTheora, 2400)
+                .SetSpeed(16)
+                .SetAudio(AudioCodec.LibVorbis, audioQuality)
+                .SetOutput(outputPath)
+                .Start();
+        }
+
+
+        /// <inheritdoc />
+        public bool ToMp4(string outputPath, Speed speed = Speed.SuperFast,
+            string size = "", AudioQuality audioQuality = AudioQuality.Normal, bool multithread = false)
+        {
+            return new Conversion()
+                .SetInput(FilePath)
+                .UseMultiThread(multithread)
+                .SetScale(size)
+                .SetVideo(VideoCodec.LibX264, 2400)
+                .SetSpeed(speed)
+                .SetAudio(AudioCodec.Aac, audioQuality)
+                .SetOutput(outputPath)
+                .Start();
+        }
+
+
+        /// <inheritdoc />
+        public bool ExtractVideo(string output)
+        {
+            return new Conversion().SetInput(this.FilePath)
+                                   .StreamCopy(Channel.Both)
+                                   .DisableChannel(Channel.Audio)
+                                   .SetOutput(output)
+                                   .Start();
+        }
+
+        /// <inheritdoc />
+        public bool ExtractAudio(string output)
+        {
+            return new Conversion().SetInput(FilePath)
+                                               .DisableChannel(Channel.Video)
+                                               .SetOutput(output)
+                                               .Start();
+        }
+
+
+        /// <inheritdoc />
+        public bool AddAudio(FileInfo audio, string output)
+        {
+            return new Conversion().SetInput(new FileInfo(this.FilePath), audio)
+                                   .StreamCopy(Channel.Video)
+                                   .SetAudio(AudioCodec.Aac, AudioQuality.Hd)
+                                   .SetOutput(output)
+                                   .Start();
+        }
+
+
+        /// <inheritdoc />
+        public Bitmap Snapshot(Size? size = null, TimeSpan? captureTime = null)
+        {
+            string output = $"{Environment.TickCount}.png";
+
+            bool success = this.Snapshot(this, output, size, captureTime);
+
+            if(!success)
+                throw new OperationCanceledException("Could not take snapshot!");
+
+            Bitmap result;
+
+            using(Image bmp = Image.FromFile(output))
+            {
+                using(var ms = new MemoryStream())
+                {
+                    bmp.Save(ms, ImageFormat.Png);
+
+                    result = new Bitmap(ms);
+                }
+            }
+
+            if(File.Exists(output))
+                File.Delete(output);
+
+            return result;
+        }
+
+
+        /// <inheritdoc />
+        public Bitmap Snapshot(string output, Size? size = null, TimeSpan? captureTime = null)
+        {
+            bool success = Snapshot(this, output, size, captureTime);
+
+            if(!success)
+                throw new OperationCanceledException("Could not take snapshot!");
+
+            Bitmap result;
+
+
+            using(Image bmp = Image.FromFile(Path.ChangeExtension(output, ".png")))
+            {
+                result = (Bitmap) bmp.Clone();
+            }
+
+            return result;
+        }
+
+        /// <summary>
+        ///     Saves snapshot of video
+        /// </summary>
+        /// <param name="source">Video</param>
+        /// <param name="outputPath">Output file</param>
+        /// <param name="size">Dimension of snapshot</param>
+        /// <param name="captureTime"></param>
+        /// <returns>Conversion result</returns>
+        [UsedImplicitly]
+        public bool Snapshot(VideoInfo source, string outputPath, Size? size = null, TimeSpan? captureTime = null)
+        {
+            if (captureTime == null)
+                captureTime = TimeSpan.FromSeconds(source.Duration.TotalSeconds / 3);
+
+            size = GetSize(source, size);
+
+            return new Conversion()
+                .SetInput(source.FilePath)
+                .SetVideo(VideoCodec.Png)
+                .SetOutputFramesCount(1)
+                .SetSeek(captureTime)
+                .SetSize(size)
+                .SetOutput(outputPath)
+                .Start();
+        }
+
+        private static Size? GetSize(VideoInfo source, Size? size)
+        {
+            if (size == null ||
+                size.Value.Height == 0 && size.Value.Width == 0)
+                size = new Size(source.Width, source.Height);
+
+            if (size.Value.Width != size.Value.Height)
+            {
+                if (size.Value.Width == 0)
+                {
+                    double ratio = source.Width / (double)size.Value.Width;
+
+                    size = new Size((int)(source.Width * ratio), (int)(source.Height * ratio));
+                }
+
+                if (size.Value.Height == 0)
+                {
+                    double ratio = source.Height / (double)size.Value.Height;
+
+                    size = new Size((int)(source.Width * ratio), (int)(source.Height * ratio));
+                }
+            }
+
+            return size;
+        }
+
+        /// <summary>
+        ///     Adds a poster image to an audio file.
+        /// </summary>
+        /// <param name="image">Source image file.</param>
+        /// <param name="audio">Source audio file.</param>
+        /// <param name="outputPath">Output video file.</param>
+        /// <returns>Conversion result</returns>
+        public bool PosterWithAudio(FileInfo image, FileInfo audio, string outputPath)
+        {
+            return new Conversion()
+                .SetInput(image, audio)
+                .SetLoop(1)
+                .SetVideo(VideoCodec.LibX264, 2400)
+                .SetAudio(AudioCodec.Aac, AudioQuality.Normal)
+                .UseShortest(true)
+                .SetOutput(outputPath)
+                .Start();
+        }
+
+        /// <summary>
+        ///     Records M3U8 streams to the specified output.
+        /// </summary>
+        /// <param name="uri">URI to stream.</param>
+        /// <param name="outputPath">Output file</param>
+        /// <returns>Conversion result</returns>
+        public bool SaveM3U8Stream(Uri uri, string outputPath)
+        {
+            if (uri.Scheme != "http" ||
+                uri.Scheme != "https")
+                throw new ArgumentException($"Invalid uri {uri.AbsolutePath}");
+
+            return new Conversion().SetInput(uri)
+                                               .SetOutput(outputPath)
+                                               .Start();
+        }
+
+        /// <inheritdoc />
+        public bool JoinWith(string output, params VideoInfo[] videos)
+        {
+            List<VideoInfo> queuedVideos = videos.ToList();
+
+            queuedVideos.Insert(0, this);
+
+            var pathList = new List<string>();
+
+            foreach (VideoInfo video in videos)
+            {
+                string tempFileName = Path.ChangeExtension(Path.GetTempFileName(), Extensions.Ts);
+                pathList.Add(tempFileName);
+                video.ToTs(tempFileName);
+            }
+
+            return new Conversion().Concat(pathList.ToArray())
+                                               .StreamCopy(Channel.Both)
+                                               .SetBitstreamFilter(Channel.Audio, Filter.Aac_AdtstoAsc)
+                                               .SetOutput(output)
+                                               .Start();
+        }
+
+        /// <summary>
+        ///     Create VideoInfo from file
+        /// </summary>
+        /// <param name="fileInfo">_sourceFile</param>
+        /// <returns>VideoInfo</returns>
+        public static IVideoInfo FromFile(FileInfo fileInfo)
+        {
+            return new VideoInfo(fileInfo);
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (returned from Xabe.FFMpeg.FFMpeg Xabe.FFMpeg.VideoInfo::get_FFmpeg() at Line 50) of type Xabe.FFMpeg.FFMpeg in method "Void VideoInfo.Dispose()".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void VideoInfo.Dispose()
+
+### File:
+Xabe.FFMpeg/VideoInfo.cs
+
+### Key:
+VideoInfo.cs|Dispose|DOTNET_RESOURCE_LEAK
+
+### Hash:
+b18476885ed02cb73ce8888bd969aaed
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0159/instruction.md

@@ -0,0 +1,383 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Xabe.FFmpeg
+**Bug ID:** 3
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Linq;
+using Xabe.FFMpeg.Enums;
+
+namespace Xabe.FFMpeg
+{
+    /// <summary>
+    ///     Information about media file
+    /// </summary>
+    public class VideoInfo : IDisposable
+    {
+        /// <summary>
+        ///     _sourceFile info
+        /// </summary>
+
+        public readonly string FilePath;
+
+        /// <summary>
+        ///     Return extension of file
+        /// </summary>
+        public string Extension => Path.GetExtension(FilePath);
+
+        private FFMpeg _ffmpeg;
+
+        /// <summary>
+        ///     Fires when conversion progress changed
+        /// </summary>
+        public ConversionHandler OnConversionProgress;
+
+        /// <summary>
+        ///     Get VideoInfo from file
+        /// </summary>
+        /// <param name="sourceFileInfo">_sourceFile</param>
+        public VideoInfo(FileInfo sourceFileInfo) : this(sourceFileInfo.FullName)
+        {
+        }
+
+        /// <summary>
+        ///     Get VideoInfo from file
+        /// </summary>
+        /// <param name="filePath">FilePath to file</param>
+        public VideoInfo(string filePath)
+        {
+            if(!File.Exists(filePath))
+            {
+                throw new ArgumentException($"Input file {filePath} doesn't exists.");
+            }
+            FilePath = filePath;
+            new FFProbe().ProbeDetails(this);
+        }
+
+        private FFMpeg FFmpeg
+        {
+            get
+            {
+                if(_ffmpeg != null &&
+                   _ffmpeg.IsRunning)
+                    throw new InvalidOperationException(
+                        "Operation on this file is in progress.");
+
+                return _ffmpeg ?? (_ffmpeg = new FFMpeg());
+            }
+        }
+
+        /// <summary>
+        ///     duration of video
+        /// </summary>
+        public TimeSpan Duration { get; internal set; }
+
+        /// <summary>
+        ///     Audio format
+        /// </summary>
+        public string AudioFormat { get; internal set; }
+
+        /// <summary>
+        ///     Video format
+        /// </summary>
+        public string VideoFormat { get; internal set; }
+
+        /// <summary>
+        ///     Screen ratio
+        /// </summary>
+        public string Ratio { get; internal set; }
+
+        /// <summary>
+        ///     Frame rate
+        /// </summary>
+        public double FrameRate { get; internal set; }
+
+        /// <summary>
+        ///     Height
+        /// </summary>
+        public int Height { get; internal set; }
+
+        /// <summary>
+        ///     Width
+        /// </summary>
+        public int Width { get; internal set; }
+
+        /// <summary>
+        ///     size
+        /// </summary>
+        public double Size { get; internal set; }
+
+        /// <summary>
+        ///     Get the ffmpeg process status
+        /// </summary>
+        public bool IsRunning => FFmpeg.IsRunning;
+
+        /// <summary>
+        ///     Create VideoInfo from file
+        /// </summary>
+        /// <param name="fileInfo">_sourceFile</param>
+        /// <returns>VideoInfo</returns>
+        public static VideoInfo FromFile(FileInfo fileInfo)
+        {
+            return new VideoInfo(fileInfo);
+        }
+
+        /// <summary>
+        ///     Get formated info about video
+        /// </summary>
+        /// <returns>Formated info about vidoe</returns>
+        public override string ToString()
+        {
+            return "Video FilePath : " + FilePath + Environment.NewLine +
+                   "Video Root : " + Path.GetDirectoryName(FilePath)+ Environment.NewLine +
+                   "Video Name: " + Path.GetFileName(FilePath) + Environment.NewLine +
+                   "Video Extension : " + Extension + Environment.NewLine +
+                   "Video duration : " + Duration + Environment.NewLine +
+                   "Audio format : " + AudioFormat + Environment.NewLine +
+                   "Video format : " + VideoFormat + Environment.NewLine +
+                   "Aspect Ratio : " + Ratio + Environment.NewLine +
+                   "Framerate : " + FrameRate + "fps" + Environment.NewLine +
+                   "Resolution : " + Width + "x" + Height + Environment.NewLine +
+                   "Size : " + Size + " MB";
+        }
+
+        /// <summary>
+        ///     Convert file to TS
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToTs(string outputPath)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToTs(this, outputPath);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Convert file to WebM
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <param name="size">Dimension</param>
+        /// <param name="audioQuality">Audio quality</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToWebM(string outputPath, VideoSize size = VideoSize.Original, AudioQuality audioQuality = AudioQuality.Normal)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToWebM(this, outputPath, size, audioQuality);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Convert file to OGV
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <param name="size">Dimension</param>
+        /// <param name="audioQuality">Audio quality</param>
+        /// <param name="multithread">Use multithread</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToOgv(string outputPath, VideoSize size = VideoSize.Original, AudioQuality audioQuality = AudioQuality.Normal, bool multithread = false)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToOgv(this, outputPath, size, audioQuality, multithread);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Convert file to MP4
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <param name="speed">Conversion speed</param>
+        /// <param name="size">Dimension</param>
+        /// <param name="audioQuality">Audio quality</param>
+        /// <param name="multithread">Use multithread</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToMp4(string outputPath, Speed speed = Speed.SuperFast,
+            VideoSize size = VideoSize.Original, AudioQuality audioQuality = AudioQuality.Normal, bool multithread = false)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToMp4(this, outputPath, speed, size, audioQuality, multithread);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Extract video from file
+        /// </summary>
+        /// <param name="output">Output audio stream</param>
+        /// <returns>Conversion result</returns>
+        public bool ExtractVideo(string output)
+        {
+            return FFmpeg.ExtractVideo(this, output);
+        }
+
+        /// <summary>
+        ///     Extract audio from file
+        /// </summary>
+        /// <param name="output">Output video stream</param>
+        /// <returns>Conversion result</returns>
+        public bool ExtractAudio(string output)
+        {
+            return FFmpeg.ExtractAudio(this, output);
+        }
+
+        /// <summary>
+        ///     Add audio to file
+        /// </summary>
+        /// <param name="audio">Audio file</param>
+        /// <param name="output">Output file</param>
+        /// <returns>Conversion result</returns>
+        public bool AddAudio(FileInfo audio, string output)
+        {
+            return FFmpeg.AddAudio(this, audio, output);
+        }
+
+        /// <summary>
+        ///     Get snapshot of video
+        /// </summary>
+        /// <param name="size">Dimension of snapshot</param>
+        /// <param name="captureTime"></param>
+        /// <returns>Snapshot</returns>
+        public Bitmap Snapshot(Size? size = null, TimeSpan? captureTime = null)
+        {
+            var output = $"{Environment.TickCount}.png";
+
+            bool success = FFmpeg.Snapshot(this, output, size, captureTime);
+
+            if(!success)
+                throw new OperationCanceledException("Could not take snapshot!");
+
+            Bitmap result;
+
+            using(Image bmp = Image.FromFile(output))
+            {
+                using(var ms = new MemoryStream())
+                {
+                    bmp.Save(ms, ImageFormat.Png);
+
+                    result = new Bitmap(ms);
+                }
+            }
+
+            if(File.Exists(output))
+                File.Delete(output);
+
+            return result;
+        }
+
+        /// <summary>
+        ///     Saves snapshot of video
+        /// </summary>
+        /// <param name="output">Output file</param>
+        /// <param name="size">Dimension of snapshot</param>
+        /// <param name="captureTime"></param>
+        /// <returns>Snapshot</returns>
+        public Bitmap Snapshot(string output, Size? size = null, TimeSpan? captureTime = null)
+        {
+            bool success = FFmpeg.Snapshot(this, output, size, captureTime);
+
+            if(!success)
+                throw new OperationCanceledException("Could not take snapshot!");
+
+            Bitmap result;
+
+
+            using(Image bmp = Image.FromFile(System.IO.Path.ChangeExtension(output, ".png")))
+            {
+                result = (Bitmap) bmp.Clone();
+            }
+
+            return result;
+        }
+
+        /// <summary>
+        ///     Concat multiple videos
+        /// </summary>
+        /// <param name="output">Concatenated videos</param>
+        /// <param name="videos">Videos to add</param>
+        /// <returns>Conversion result</returns>
+        public bool JoinWith(string output, params VideoInfo[] videos)
+        {
+            List<VideoInfo> queuedVideos = videos.ToList();
+
+            queuedVideos.Insert(0, this);
+
+            return FFmpeg.Join(output, queuedVideos.ToArray());
+        }
+
+        /// <inheritdoc />
+        public void Dispose()
+        {
+            FFmpeg.Stop();
+            _ffmpeg?.Dispose();
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource return of type Xabe.FFMpeg.VideoInfo, Leaked resource (returned from Xabe.FFMpeg.FFMpeg Xabe.FFMpeg.VideoInfo::get_FFmpeg() at Line 189) of type Xabe.FFMpeg.FFMpeg, Leaked resource (returned from Xabe.FFMpeg.FFMpeg Xabe.FFMpeg.VideoInfo::get_FFmpeg() at Line 186) of type Xabe.FFMpeg.FFMpeg, Leaked resource (returned from Xabe.FFMpeg.FFMpeg Xabe.FFMpeg.VideoInfo::get_FFmpeg() at Line 185) of type Xabe.FFMpeg.FFMpeg in method "VideoInfo VideoInfo.ToOgv(String,VideoSize,AudioQuality,Boolean)".
+
+### Severity:
+ERROR
+
+### Procedure:
+VideoInfo VideoInfo.ToOgv(String,VideoSize,AudioQuality,Boolean)
+
+### File:
+Xabe.FFMpeg/VideoInfo.cs
+
+### Key:
+VideoInfo.cs|ToOgv|DOTNET_RESOURCE_LEAK
+
+### Hash:
+e710ba6c9a1bdcbadbb5fff33803ba39
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0161/instruction.md

@@ -0,0 +1,383 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Xabe.FFmpeg
+**Bug ID:** 2
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Linq;
+using Xabe.FFMpeg.Enums;
+
+namespace Xabe.FFMpeg
+{
+    /// <summary>
+    ///     Information about media file
+    /// </summary>
+    public class VideoInfo : IDisposable
+    {
+        /// <summary>
+        ///     _sourceFile info
+        /// </summary>
+
+        public readonly string FilePath;
+
+        /// <summary>
+        ///     Return extension of file
+        /// </summary>
+        public string Extension => Path.GetExtension(FilePath);
+
+        private FFMpeg _ffmpeg;
+
+        /// <summary>
+        ///     Fires when conversion progress changed
+        /// </summary>
+        public ConversionHandler OnConversionProgress;
+
+        /// <summary>
+        ///     Get VideoInfo from file
+        /// </summary>
+        /// <param name="sourceFileInfo">_sourceFile</param>
+        public VideoInfo(FileInfo sourceFileInfo) : this(sourceFileInfo.FullName)
+        {
+        }
+
+        /// <summary>
+        ///     Get VideoInfo from file
+        /// </summary>
+        /// <param name="filePath">FilePath to file</param>
+        public VideoInfo(string filePath)
+        {
+            if(!File.Exists(filePath))
+            {
+                throw new ArgumentException($"Input file {filePath} doesn't exists.");
+            }
+            FilePath = filePath;
+            new FFProbe().ProbeDetails(this);
+        }
+
+        private FFMpeg FFmpeg
+        {
+            get
+            {
+                if(_ffmpeg != null &&
+                   _ffmpeg.IsRunning)
+                    throw new InvalidOperationException(
+                        "Operation on this file is in progress.");
+
+                return _ffmpeg ?? (_ffmpeg = new FFMpeg());
+            }
+        }
+
+        /// <summary>
+        ///     duration of video
+        /// </summary>
+        public TimeSpan Duration { get; internal set; }
+
+        /// <summary>
+        ///     Audio format
+        /// </summary>
+        public string AudioFormat { get; internal set; }
+
+        /// <summary>
+        ///     Video format
+        /// </summary>
+        public string VideoFormat { get; internal set; }
+
+        /// <summary>
+        ///     Screen ratio
+        /// </summary>
+        public string Ratio { get; internal set; }
+
+        /// <summary>
+        ///     Frame rate
+        /// </summary>
+        public double FrameRate { get; internal set; }
+
+        /// <summary>
+        ///     Height
+        /// </summary>
+        public int Height { get; internal set; }
+
+        /// <summary>
+        ///     Width
+        /// </summary>
+        public int Width { get; internal set; }
+
+        /// <summary>
+        ///     size
+        /// </summary>
+        public double Size { get; internal set; }
+
+        /// <summary>
+        ///     Get the ffmpeg process status
+        /// </summary>
+        public bool IsRunning => FFmpeg.IsRunning;
+
+        /// <summary>
+        ///     Create VideoInfo from file
+        /// </summary>
+        /// <param name="fileInfo">_sourceFile</param>
+        /// <returns>VideoInfo</returns>
+        public static VideoInfo FromFile(FileInfo fileInfo)
+        {
+            return new VideoInfo(fileInfo);
+        }
+
+        /// <summary>
+        ///     Get formated info about video
+        /// </summary>
+        /// <returns>Formated info about vidoe</returns>
+        public override string ToString()
+        {
+            return "Video FilePath : " + FilePath + Environment.NewLine +
+                   "Video Root : " + Path.GetDirectoryName(FilePath)+ Environment.NewLine +
+                   "Video Name: " + Path.GetFileName(FilePath) + Environment.NewLine +
+                   "Video Extension : " + Extension + Environment.NewLine +
+                   "Video duration : " + Duration + Environment.NewLine +
+                   "Audio format : " + AudioFormat + Environment.NewLine +
+                   "Video format : " + VideoFormat + Environment.NewLine +
+                   "Aspect Ratio : " + Ratio + Environment.NewLine +
+                   "Framerate : " + FrameRate + "fps" + Environment.NewLine +
+                   "Resolution : " + Width + "x" + Height + Environment.NewLine +
+                   "Size : " + Size + " MB";
+        }
+
+        /// <summary>
+        ///     Convert file to TS
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToTs(string outputPath)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToTs(this, outputPath);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Convert file to WebM
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <param name="size">Dimension</param>
+        /// <param name="audioQuality">Audio quality</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToWebM(string outputPath, VideoSize size = VideoSize.Original, AudioQuality audioQuality = AudioQuality.Normal)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToWebM(this, outputPath, size, audioQuality);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Convert file to OGV
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <param name="size">Dimension</param>
+        /// <param name="audioQuality">Audio quality</param>
+        /// <param name="multithread">Use multithread</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToOgv(string outputPath, VideoSize size = VideoSize.Original, AudioQuality audioQuality = AudioQuality.Normal, bool multithread = false)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToOgv(this, outputPath, size, audioQuality, multithread);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Convert file to MP4
+        /// </summary>
+        /// <param name="outputPath">Destination file</param>
+        /// <param name="speed">Conversion speed</param>
+        /// <param name="size">Dimension</param>
+        /// <param name="audioQuality">Audio quality</param>
+        /// <param name="multithread">Use multithread</param>
+        /// <returns>Output VideoInfo</returns>
+        public VideoInfo ToMp4(string outputPath, Speed speed = Speed.SuperFast,
+            VideoSize size = VideoSize.Original, AudioQuality audioQuality = AudioQuality.Normal, bool multithread = false)
+        {
+            FFmpeg.OnProgress += OnConversionProgress;
+            var success = FFmpeg.ToMp4(this, outputPath, speed, size, audioQuality, multithread);
+            if (!success)
+                throw new OperationCanceledException("The conversion process could not be completed.");
+            FFmpeg.OnProgress -= OnConversionProgress;
+            return new VideoInfo(outputPath);
+        }
+
+        /// <summary>
+        ///     Extract video from file
+        /// </summary>
+        /// <param name="output">Output audio stream</param>
+        /// <returns>Conversion result</returns>
+        public bool ExtractVideo(string output)
+        {
+            return FFmpeg.ExtractVideo(this, output);
+        }
+
+        /// <summary>
+        ///     Extract audio from file
+        /// </summary>
+        /// <param name="output">Output video stream</param>
+        /// <returns>Conversion result</returns>
+        public bool ExtractAudio(string output)
+        {
+            return FFmpeg.ExtractAudio(this, output);
+        }
+
+        /// <summary>
+        ///     Add audio to file
+        /// </summary>
+        /// <param name="audio">Audio file</param>
+        /// <param name="output">Output file</param>
+        /// <returns>Conversion result</returns>
+        public bool AddAudio(FileInfo audio, string output)
+        {
+            return FFmpeg.AddAudio(this, audio, output);
+        }
+
+        /// <summary>
+        ///     Get snapshot of video
+        /// </summary>
+        /// <param name="size">Dimension of snapshot</param>
+        /// <param name="captureTime"></param>
+        /// <returns>Snapshot</returns>
+        public Bitmap Snapshot(Size? size = null, TimeSpan? captureTime = null)
+        {
+            var output = $"{Environment.TickCount}.png";
+
+            bool success = FFmpeg.Snapshot(this, output, size, captureTime);
+
+            if(!success)
+                throw new OperationCanceledException("Could not take snapshot!");
+
+            Bitmap result;
+
+            using(Image bmp = Image.FromFile(output))
+            {
+                using(var ms = new MemoryStream())
+                {
+                    bmp.Save(ms, ImageFormat.Png);
+
+                    result = new Bitmap(ms);
+                }
+            }
+
+            if(File.Exists(output))
+                File.Delete(output);
+
+            return result;
+        }
+
+        /// <summary>
+        ///     Saves snapshot of video
+        /// </summary>
+        /// <param name="output">Output file</param>
+        /// <param name="size">Dimension of snapshot</param>
+        /// <param name="captureTime"></param>
+        /// <returns>Snapshot</returns>
+        public Bitmap Snapshot(string output, Size? size = null, TimeSpan? captureTime = null)
+        {
+            bool success = FFmpeg.Snapshot(this, output, size, captureTime);
+
+            if(!success)
+                throw new OperationCanceledException("Could not take snapshot!");
+
+            Bitmap result;
+
+
+            using(Image bmp = Image.FromFile(System.IO.Path.ChangeExtension(output, ".png")))
+            {
+                result = (Bitmap) bmp.Clone();
+            }
+
+            return result;
+        }
+
+        /// <summary>
+        ///     Concat multiple videos
+        /// </summary>
+        /// <param name="output">Concatenated videos</param>
+        /// <param name="videos">Videos to add</param>
+        /// <returns>Conversion result</returns>
+        public bool JoinWith(string output, params VideoInfo[] videos)
+        {
+            List<VideoInfo> queuedVideos = videos.ToList();
+
+            queuedVideos.Insert(0, this);
+
+            return FFmpeg.Join(output, queuedVideos.ToArray());
+        }
+
+        /// <inheritdoc />
+        public void Dispose()
+        {
+            FFmpeg.Stop();
+            _ffmpeg?.Dispose();
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource return of type Xabe.FFMpeg.VideoInfo, Leaked resource (returned from Xabe.FFMpeg.FFMpeg Xabe.FFMpeg.VideoInfo::get_FFmpeg() at Line 209) of type Xabe.FFMpeg.FFMpeg, Leaked resource (returned from Xabe.FFMpeg.FFMpeg Xabe.FFMpeg.VideoInfo::get_FFmpeg() at Line 206) of type Xabe.FFMpeg.FFMpeg, Leaked resource (returned from Xabe.FFMpeg.FFMpeg Xabe.FFMpeg.VideoInfo::get_FFmpeg() at Line 205) of type Xabe.FFMpeg.FFMpeg in method "VideoInfo VideoInfo.ToMp4(String,Speed,VideoSize,AudioQuality,Boolean)".
+
+### Severity:
+ERROR
+
+### Procedure:
+VideoInfo VideoInfo.ToMp4(String,Speed,VideoSize,AudioQuality,Boolean)
+
+### File:
+Xabe.FFMpeg/VideoInfo.cs
+
+### Key:
+VideoInfo.cs|ToMp4|DOTNET_RESOURCE_LEAK
+
+### Hash:
+3a319136da2fb4c3103b2c2f1a2cd68c
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0166/instruction.md

@@ -0,0 +1,253 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Xabe.FFmpeg
+**Bug ID:** 25
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.IO;
+using JetBrains.Annotations;
+
+namespace Xabe.FFMpeg
+{
+    /// <inheritdoc cref="IVideoInfo" />
+    public class VideoInfo: IVideoInfo
+    {
+        private TimeSpan _videoDuration;
+        private bool _wasInitalized;
+        private TimeSpan _duration;
+        private string _audioFormat;
+        private TimeSpan _audioDuration;
+        private string _videoFormat;
+        private string _ratio;
+        private long _size;
+        private int _width;
+        private int _height;
+        private double _frameRate;
+
+        /// <inheritdoc />
+        public VideoInfo(FileInfo sourceFileInfo): this(sourceFileInfo.FullName)
+        {
+        }
+
+        /// <summary>
+        ///     Get VideoInfo from file
+        /// </summary>
+        /// <param name="fullName">FullName to file</param>
+        [UsedImplicitly]
+        public VideoInfo(string fullName)
+        {
+            if(!File.Exists(fullName))
+                throw new ArgumentException($"Input file {fullName} doesn't exists.");
+            FullName = fullName;
+        }
+
+        /// <inheritdoc />
+        public string FullName { get; }
+
+        /// <inheritdoc />
+        public TimeSpan VideoDuration
+        {
+            get
+            {
+                if(!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _videoDuration;
+            }
+            internal set => _videoDuration = value;
+        }
+
+        /// <inheritdoc />
+        public string Extension => Path.GetExtension(FullName);
+
+        /// <inheritdoc />
+        public TimeSpan Duration
+        {
+            get
+            {
+                if (!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _duration;
+            }
+            internal set => _duration = value;
+        }
+        /// <inheritdoc />
+        public string AudioFormat
+        {
+            get
+            {
+                if (!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _audioFormat;
+            }
+            internal set => _audioFormat = value;
+        }
+
+        /// <inheritdoc />
+        public TimeSpan AudioDuration
+        {
+            get
+            {
+                if (!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _audioDuration;
+            }
+            internal set => _audioDuration = value;
+        }
+
+        /// <inheritdoc />
+        public string VideoFormat
+        {
+            get
+            {
+                if (!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _videoFormat;
+            }
+            internal set => _videoFormat = value;
+        }
+
+        /// <inheritdoc />
+        public string Ratio
+        {
+            get
+            {
+                if (!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _ratio;
+            }
+            internal set => _ratio = value;
+        }
+
+        /// <inheritdoc />
+        public double FrameRate
+        {
+            get
+            {
+                if (!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _frameRate;
+            }
+            internal set => _frameRate = value;
+        }
+
+        /// <inheritdoc />
+        public int Height
+        {
+            get
+            {
+                if (!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _height;
+            }
+            internal set => _height = value;
+        }
+
+        /// <inheritdoc />
+        public int Width
+        {
+            get
+            {
+                if (!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _width;
+            }
+            internal set => _width = value;
+        }
+
+        /// <inheritdoc />
+        public long Size
+        {
+            get
+            {
+                if (!_wasInitalized)
+                    // ReSharper disable once ObjectCreationAsStatement
+                    { _wasInitalized = true; new FFProbe(this); }
+                return _size;
+            }
+            internal set => _size = value;
+        }
+
+        /// <inheritdoc cref="IVideoInfo.ToString" />
+        [UsedImplicitly]
+        public override string ToString()
+        {
+            if(!_wasInitalized)
+                { _wasInitalized = true; new FFProbe(this); }
+            return $"Video fullName : {FullName}{Environment.NewLine}" +
+                   $"Video root : {Path.GetDirectoryName(FullName)}{Environment.NewLine}" +
+                   $"Video name: {Path.GetFileName(FullName)}{Environment.NewLine}" +
+                   $"Video extension : {Extension}{Environment.NewLine}" +
+                   $"Video duration : {VideoDuration}{Environment.NewLine}" +
+                   $"Video format : {VideoFormat}{Environment.NewLine}" +
+                   $"Audio format : {AudioFormat}{Environment.NewLine}" +
+                   $"Audio duration : {AudioDuration}{Environment.NewLine}" +
+                   $"Aspect Ratio : {Ratio}{Environment.NewLine}" +
+                   $"Framerate : {Ratio} fps{Environment.NewLine}" +
+                   $"Resolution : {Width} x {Height}{Environment.NewLine}" +
+                   $"Size : {Size} b";
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (output of Xabe.FFMpeg.FFProbe::.ctor() at Line 179) of type Xabe.FFMpeg.FFProbe in method "String VideoInfo.ToString()".
+
+### Severity:
+ERROR
+
+### Procedure:
+String VideoInfo.ToString()
+
+### File:
+Xabe.FFMpeg/VideoInfo.cs
+
+### Key:
+VideoInfo.cs|ToString|DOTNET_RESOURCE_LEAK
+
+### Hash:
+7b4ae160fba656dd8ed844d7481d02f8
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0167/instruction.md

@@ -0,0 +1,771 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Lockstep-Tutorial
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using Lockstep.Logging;
+using Lockstep.Math;
+using Lockstep.Serialization;
+using NetMsg.Common;
+using Lockstep.Util;
+using Random = System.Random;
+
+namespace Lockstep.FakeServer {
+    public class Game : BaseLogger {
+        private delegate void DealNetMsg(Player player, BaseMsg data);
+
+        private delegate BaseMsg ParseNetMsg(Deserializer reader);
+
+
+        public const int MaxPlayerCount = 2;
+
+        public int MapId { get; set; }
+        public string GameHash { get; set; }
+
+        public IPEndInfo TcpEnd { get; set; }
+        public IPEndInfo UdpEnd { get; set; }
+
+        public EGameState State = EGameState.Idle;
+        public int GameType { get; set; }
+        public int GameId { get; set; }
+
+        public long[] UserIds => _userId2LocalId.Keys.ToArray();
+
+        public int CurPlayerCount {
+            get {
+                int count = 0;
+                foreach (var player in Players) {
+                    if (player != null) {
+                        count++;
+                    }
+                }
+
+                return count;
+            }
+        }
+
+
+        public bool IsRunning { get; private set; }
+        public string Name;
+        public float TimeSinceCreate;
+        public bool IsFinished = false;
+
+        public Msg_G2C_GameStartInfo GameStartInfo { get; set; }
+
+
+        private Dictionary<long, byte> _userId2LocalId = new Dictionary<long, byte>();
+        public Player[] Players { get; private set; }
+
+
+        //hashcode 
+        public int Tick = 0;
+        private Dictionary<int, HashCodeMatcher> _hashCodes = new Dictionary<int, HashCodeMatcher>();
+
+
+        private const int MaxMsgIdx = (short) EMsgSC.EnumCount;
+        private DealNetMsg[] allMsgDealFuncs = new DealNetMsg[MaxMsgIdx];
+        private ParseNetMsg[] allMsgParsers = new ParseNetMsg[MaxMsgIdx];
+
+
+        private float _timeSinceLoaded;
+        private float _firstFrameTimeStamp = 0;
+        private float _waitTimer = 0;
+
+        //所有需要等待输入到来的Ids
+        private List<byte> _allNeedWaitInputPlayerIds;
+        private List<ServerFrame> _allHistoryFrames = new List<ServerFrame>(); //所有的历史帧
+
+        private byte[] _playerLoadingProgress;
+        public const int MaxRepMissFrameCountPerPack = 600;
+
+        public int Seed { get; set; }
+
+        public void OnRecvPlayerGameData(Player player){
+            if (player == null || MaxPlayerCount <= player.LocalId || Players[player.LocalId] != player) {
+                return;
+            }
+
+            bool hasRecvAll = true;
+            foreach (var user in Players) {
+                if (user != null && user.GameData == null) {
+                    hasRecvAll = false;
+                    break;
+                }
+            }
+
+            var playerCount = MaxPlayerCount;
+            if (hasRecvAll) {
+                //TODO 
+                for (int i = 0; i < playerCount; i++) {
+                    var helloMsg = new Msg_G2C_Hello() {
+                        LocalId = (byte) i
+                    };
+                    Players[i].SendTcp(EMsgSC.G2C_Hello, helloMsg);
+                }
+
+                var userInfos = new GameData[playerCount];
+                for (int i = 0; i < playerCount; i++) {
+                    userInfos[i] = Players[i]?.GameData;
+                }
+
+                //all user data ready notify game start
+                SetStartInfo(new Msg_G2C_GameStartInfo() {
+                    MapId = MapId,
+                    RoomId = GameId,
+                    Seed = Seed,
+                    UserCount = MaxPlayerCount,
+                    TcpEnd = TcpEnd,
+                    UdpEnd = UdpEnd,
+                    SimulationSpeed = 30,
+                    UserInfos = userInfos
+                });
+            }
+        }
+
+
+        public int GetUserLocalId(long userId){
+            if (_userId2LocalId.TryGetValue(userId, out var id)) {
+                return id;
+            }
+
+            return -1;
+        }
+
+
+        #region  life cycle
+
+        public void DoStart(int gameId, int gameType, int mapId, Player[] playerInfos, string gameHash){
+            State = EGameState.Loading;
+            Seed = LRandom.Range(1, 100000);
+            Tick = 0;
+            _timeSinceLoaded = 0;
+            _firstFrameTimeStamp = 0;
+            RegisterMsgHandlers();
+            Debug = new DebugInstance("Room" + GameId + ": ");
+            var count = playerInfos.Length;
+            GameType = gameType;
+            GameHash = gameHash;
+            GameId = gameId;
+            Name = gameId.ToString();
+            MapId = mapId;
+            Players = playerInfos;
+            _userId2LocalId.Clear();
+            TimeSinceCreate = LTime.timeSinceLevelLoad;
+            for (byte i = 0; i < count; i++) {
+                var player = Players[i];
+                _userId2LocalId.Add(player.UserId, player.LocalId);
+            }
+
+            //Temp code 
+            for (byte i = 0; i < count; i++) {
+                var player = Players[i];
+                player.GameData = new GameData();
+                OnRecvPlayerGameData(player);
+            }
+        }
+
+        public void DoUpdate(float deltaTime){
+            _timeSinceLoaded += deltaTime;
+            _waitTimer += deltaTime;
+            if (State != EGameState.Playing) return;
+            while (Tick < _tickSinceGameStart) {
+                _CheckBorderServerFrame(true);
+            }
+        }
+
+        public void DoDestroy(){
+            Log($"Room {GameId} Destroy");
+            DumpGameFrames();
+        }
+
+        Player CreatePlayer(GamePlayerInfo playerInfo, byte localId){
+            var player = Pool.Get<Player>();
+            player.UserId = playerInfo.UserId;
+            player.Account = playerInfo.Account;
+            player.LoginHash = playerInfo.LoginHash;
+            player.LocalId = localId;
+            player.Game = this;
+            return player;
+        }
+
+        private bool _CheckBorderServerFrame(bool isForce = false){
+            if (State != EGameState.Playing) return false;
+            var frame = GetOrCreateFrame(Tick);
+            var inputs = frame.Inputs;
+            //超时等待 移除超时玩家
+            //if (_waitTimer > (NetworkDefine.MAX_DELAY_TIME_MS / 1000.0f)) {
+            //    _waitTimer = 0;
+            //    //移除还没有到来的帧的Player
+            //    for (int i = 0; i < inputs.Length; i++) {
+            //        if (inputs[i] == null) {
+            //            if (Players[i] != null) {
+            //                Log($"Overtime wait remove localId = {i}");
+            //            }
+//
+            //            _allNeedWaitInputPlayerIds.Remove((byte) i);
+            //        }
+            //    }
+            //}
+
+            //if (!isForce) {
+            //    //是否所有的输入  都已经等到
+            //    foreach (var id in _allNeedWaitInputPlayerIds) {
+            //        if (inputs[id] == null) {
+            //            return false;
+            //        }
+            //    }
+            //}
+            if (!isForce) {
+                //是否所有的输入  都已经等到
+                for (int i = 0; i < inputs.Length; i++) {
+                    if (inputs[i] == null) {
+                        return false;
+                    }
+                }
+            }
+
+            //将所有未到的包 给予默认的输入
+            for (int i = 0; i < inputs.Length; i++) {
+                if (inputs[i] == null) {
+                    inputs[i] = new Msg_PlayerInput(Tick, (byte) i);
+                }
+            }
+
+            //Debug.Log("Border input " + Tick);
+            var msg = new Msg_ServerFrames();
+            int count = Tick < 2 ? Tick + 1 : 3;
+            var frames = new ServerFrame[count];
+            for (int i = 0; i < count; i++) {
+                frames[count - i - 1] = _allHistoryFrames[Tick - i];
+            }
+
+            msg.startTick = frames[0].tick;
+            msg.frames = frames;
+            BorderUdp(EMsgSC.G2C_FrameData, msg);
+            if (_firstFrameTimeStamp <= 0) {
+                _firstFrameTimeStamp = _timeSinceLoaded;
+            }
+
+            Tick++;
+            return true;
+        }
+
+
+        private void DumpGameFrames(){
+            var msg = new Msg_RepMissFrame();
+            int count = System.Math.Min((Tick - 1), _allHistoryFrames.Count);
+            if (count <= 0) return;
+            var writer = new Serializer();
+            GameStartInfo.Serialize(writer);
+            var frames = new ServerFrame[count];
+            for (int i = 0; i < count; i++) {
+                frames[i] = _allHistoryFrames[i];
+                Logging.Debug.Assert(frames[i] != null, "!!!!!!!!!!!!!!!!!");
+            }
+
+            msg.startTick = frames[0].tick;
+            msg.frames = frames;
+            msg.Serialize(writer);
+            var bytes = Compressor.Compress(writer);
+            var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory,
+                "../Record/" + System.DateTime.Now.ToString("yyyyMMddHHmmss") + "_" + GameType + "_" + GameId +
+                ".record");
+            var dir = Path.GetDirectoryName(path);
+            if (!Directory.Exists(dir)) {
+                Directory.CreateDirectory(dir);
+            }
+
+            Log("Create Record " + path);
+            File.WriteAllBytes(path, bytes);
+        }
+
+        #endregion
+
+        #region net msg
+
+        public void SetStartInfo(Msg_G2C_GameStartInfo info){
+            Debug.Log("SetStartInfo");
+            GameStartInfo = info;
+            BorderTcp(EMsgSC.G2C_GameStartInfo, GameStartInfo);
+        }
+
+        public void OnRecvMsg(Player player, Deserializer reader){
+            if (reader.IsEnd) {
+                DealMsgHandlerError(player, $"{player.UserId} send a Error:Net Msg");
+                return;
+            }
+
+            var msgType = reader.ReadInt16();
+            if (msgType >= MaxMsgIdx) {
+                DealMsgHandlerError(player, $"{player.UserId} send a Error msgType out of range {msgType}");
+                return;
+            }
+
+            //Debug.Log($"OnDataReceived netID = {player.localId}  type:{(EMsgCS) msgType}");
+            {
+                var _func = allMsgDealFuncs[msgType];
+                var _parser = allMsgParsers[msgType];
+                if (_func != null && _parser != null) {
+                    var data = _parser(reader);
+                    if (data == null) {
+                        DealMsgHandlerError(player,
+                            $"ErrorMsg type :parser data error playerID = {player.UserId} msgType:{msgType}");
+                        return;
+                    }
+
+                    _func(player, data);
+                }
+                else {
+                    DealMsgHandlerError(player,
+                        $" {player.UserId} ErrorMsg type :no msg handler or parser {msgType}");
+                }
+            }
+        }
+
+        void DealMsgHandlerError(Player player, string msg){
+            LogError(msg);
+            TickOut(player, 0);
+        }
+
+        public void TickOut(Player player, int reason){
+            //_gameServer.TickOut(player, reason);
+        }
+
+        private void RegisterMsgHandlers(){
+            RegisterHandler(EMsgSC.C2G_PlayerInput, C2G_PlayerInput,
+                (reader) => { return ParseData<Msg_PlayerInput>(reader); });
+            RegisterHandler(EMsgSC.C2G_HashCode, C2G_HashCode,
+                (reader) => { return ParseData<Msg_HashCode>(reader); });
+            RegisterHandler(EMsgSC.C2G_LoadingProgress, C2G_LoadingProgress,
+                (reader) => { return ParseData<Msg_C2G_LoadingProgress>(reader); });
+            RegisterHandler(EMsgSC.C2G_ReqMissFrame, C2G_ReqMissFrame,
+                (reader) => { return ParseData<Msg_ReqMissFrame>(reader); });
+            RegisterHandler(EMsgSC.C2G_RepMissFrameAck, C2G_RepMissFrameAck,
+                (reader) => { return ParseData<Msg_RepMissFrameAck>(reader); });
+        }
+
+        private void RegisterHandler(EMsgSC type, DealNetMsg func, ParseNetMsg parseFunc){
+            allMsgDealFuncs[(int) type] = func;
+            allMsgParsers[(int) type] = parseFunc;
+        }
+
+        T ParseData<T>(Deserializer reader) where T : BaseMsg, new(){
+            T data = null;
+            try {
+                data = reader.Parse<T>();
+                if (!reader.IsEnd) {
+                    data = null;
+                }
+            }
+            catch (Exception e) {
+                LogError("Parse Msg Error:" + e);
+                data = null;
+            }
+
+            return data;
+        }
+
+        public void BorderTcp(EMsgSC type, BaseMsg data){
+            var bytes = data.ToBytes();
+            foreach (var player in Players) {
+                player?.SendTcp(type, bytes);
+            }
+        }
+
+        public void BorderUdp(EMsgSC type, byte[] data){
+            foreach (var player in Players) {
+                SendUdp(player, type, data);
+            }
+        }
+
+        public void BorderUdp(EMsgSC type, ISerializable body){
+            var writer = new Serializer();
+            body.Serialize(writer);
+            var bytes = writer.CopyData();
+            foreach (var player in Players) {
+                player?.SendUdp(type, bytes);
+            }
+        }
+
+
+        public void SendUdp(Player player, EMsgSC type, byte[] data){
+            player?.SendUdp(type, data);
+        }
+
+        public void SendUdp(Player player, EMsgSC type, ISerializable body, bool isNeedDebugSize = false){
+            var writer = new Serializer();
+            body.Serialize(writer);
+            player?.SendUdp(type, writer.CopyData());
+        }
+
+        #endregion
+
+        #region net status
+
+        public void OnPlayerConnect(Player player){
+            if (GameStartInfo != null) {
+                player.SendTcp(EMsgSC.G2C_GameStartInfo, GameStartInfo);
+            }
+        }
+
+        //net status
+        public void OnPlayerReconnect(GamePlayerInfo playerInfo){
+            var localId = _userId2LocalId[playerInfo.UserId];
+            var player = CreatePlayer(playerInfo, localId);
+            Players[localId] = player;
+        }
+
+        public void OnPlayerReconnect(Player player){
+            player.LocalId = _userId2LocalId[player.UserId];
+            Players[player.LocalId] = player;
+        }
+
+        public void OnPlayerDisconnect(Player player){
+            Log($"Player{player.UserId} OnDisconnect room {GameId}");
+            RemovePlayer(player);
+        }
+
+        public void OnPlayerLeave(long userId){
+            if (_userId2LocalId.TryGetValue(userId, out var localId)) {
+                var player = Players[localId];
+                if (player != null) {
+                    OnPlayerLeave(player);
+                }
+            }
+        }
+
+        public void OnPlayerLeave(Player player){
+            RemovePlayer(player);
+            _userId2LocalId.Remove(player.UserId); //同时还需要彻底的移除记录 避免玩家重连
+            Log($"Player{player.UserId} OnPlayerLeave room {GameId}");
+        }
+
+        void RemovePlayer(Player player){
+            if (Players[player.LocalId] == null) return;
+            Players[player.LocalId] = null;
+            var peer = player.PeerTcp;
+            peer?.Dispose();
+
+            player.PeerTcp = null;
+            peer = player.PeerUdp;
+            peer?.Dispose();
+
+            player.PeerUdp = null;
+
+            var curCount = CurPlayerCount;
+            if (curCount == 0) {
+                Log("All players left, stopping current simulation...");
+                IsRunning = false;
+                State = EGameState.Idle;
+                //_gameServer.OnGameEmpty(this);
+            }
+            else {
+                Log(curCount + " players remaining.");
+            }
+        }
+
+        #endregion
+
+        #region game status
+
+        public void StartGame(){ }
+
+        public void FinishedGame(){ }
+
+        #endregion
+
+        #region IRecyclable
+
+        //回收时候调用
+        public void OnReuse(){ }
+
+        public void OnRecycle(){
+            _userId2LocalId.Clear();
+            _hashCodes.Clear();
+            Tick = 0;
+            GameId = -1;
+            if (Players == null) return;
+            foreach (var player in Players) {
+                Pool.Return(player);
+            }
+
+            Players = null;
+        }
+
+        #endregion
+
+        #region Net msg handler
+
+        public void OnNetMsg(Player player, ushort opcode, BaseMsg msg){
+            var type = (EMsgSC) opcode;
+            switch (type) {
+                //login
+                //room
+                case EMsgSC.C2G_PlayerInput:
+                    C2G_PlayerInput(player, msg);
+                    break;
+                case EMsgSC.C2G_HashCode:
+                    C2G_HashCode(player, msg);
+                    break;
+                case EMsgSC.C2G_LoadingProgress:
+                    C2G_LoadingProgress(player, msg);
+                    break;
+                case EMsgSC.C2G_ReqMissFrame:
+                    C2G_ReqMissFrame(player, msg);
+                    break;
+                case EMsgSC.C2G_RepMissFrameAck:
+                    C2G_RepMissFrameAck(player, msg);
+                    break;
+                default:
+                    Debug.Log("Unknow msg " + type);
+                    break;
+            }
+        }
+
+        public long _gameStartTimestampMs;
+        public int _ServerTickDealy = 2;
+
+        public int _tickSinceGameStart =>
+            (int) ((LTime.realtimeSinceStartupMS - _gameStartTimestampMs) / NetworkDefine.UPDATE_DELTATIME);
+
+        void C2G_PlayerInput(Player player, BaseMsg data){
+            if (State != EGameState.PartLoaded && State != EGameState.Playing) return;
+            if (State == EGameState.PartLoaded) {
+                Log("First input: game start playing");
+                State = EGameState.Playing;
+                _gameStartTimestampMs =
+                    LTime.realtimeSinceStartupMS + NetworkDefine.UPDATE_DELTATIME * _ServerTickDealy;
+            }
+
+            var input = data as Msg_PlayerInput;
+#if DEBUG_SHOW_INPUT
+            if (input.Commands.Length > 0) {
+                var cmd = input.Commands[0];
+                var playerInput = new Deserializer(cmd.content).Parse<Lockstep.Game.PlayerInput>();
+                if (playerInput.inputUV != LVector2.zero) {
+                    Debug.Log( $"curTick{Tick} isOutdate{input.Tick < Tick} RecvInput actorID:{input.ActorId}  inputTick:{input.Tick}  move:{playerInput.inputUV}");
+                }
+            }
+#endif
+
+            //Debug.Log($"RecvInput actorID:{input.ActorId} inputTick:{input.Tick} Tick{Tick}");
+            if (input.Tick < Tick) {
+                return;
+            }
+
+            var frame = GetOrCreateFrame(input.Tick);
+
+            var id = input.ActorId;
+            if (!_allNeedWaitInputPlayerIds.Contains(id)) {
+                _allNeedWaitInputPlayerIds.Add(id);
+            }
+
+            frame.Inputs[id] = input;
+
+            while (_CheckBorderServerFrame(false)) { }
+        }
+
+        ServerFrame GetOrCreateFrame(int tick){
+            //扩充帧队列
+            var frameCount = _allHistoryFrames.Count;
+            if (frameCount <= tick) {
+                var count = tick - _allHistoryFrames.Count + 1;
+                for (int i = 0; i < count; i++) {
+                    _allHistoryFrames.Add(null);
+                }
+            }
+
+            if (_allHistoryFrames[tick] == null) {
+                _allHistoryFrames[tick] = new ServerFrame() {tick = tick};
+            }
+
+            var frame = _allHistoryFrames[tick];
+            if (frame.Inputs == null || frame.Inputs.Length != MaxPlayerCount) {
+                frame.Inputs = new Msg_PlayerInput[MaxPlayerCount];
+            }
+
+            return frame;
+        }
+
+
+        void C2G_HashCode(Player player, BaseMsg data){
+            var hashInfo = data as Msg_HashCode;
+            var id = player.LocalId;
+            for (int i = 0; i < hashInfo.HashCodes.Length; i++) {
+                var code = hashInfo.HashCodes[i];
+                var tick = hashInfo.StartTick + i;
+                //Debug.Log($"tick: {tick} Hash {code}"  );
+                if (_hashCodes.TryGetValue(tick, out HashCodeMatcher matcher1)) {
+                    if (matcher1 == null || matcher1.sendResult[id]) {
+                        continue;
+                    }
+
+                    if (matcher1.hashCode != code) {
+                        OnHashMatchResult(tick, code, false);
+                    }
+
+                    matcher1.count = matcher1.count + 1;
+                    matcher1.sendResult[id] = true;
+                    if (matcher1.IsMatchered) {
+                        OnHashMatchResult(tick, code, true);
+                    }
+                }
+                else {
+                    var matcher2 = new HashCodeMatcher(MaxPlayerCount);
+                    matcher2.count = 1;
+                    matcher2.hashCode = code;
+                    matcher2.sendResult[id] = true;
+                    _hashCodes.Add(tick, matcher2);
+                    if (matcher2.IsMatchered) {
+                        OnHashMatchResult(tick, code, true);
+                    }
+                }
+            }
+        }
+
+
+        void OnHashMatchResult(int tick, long hash, bool isMatched){
+            if (isMatched) {
+                _hashCodes[tick] = null;
+            }
+
+            if (!isMatched) {
+                Log($"!!!!!!!!!!!! Hash not match tick{tick} hash{hash} ");
+            }
+        }
+
+
+        void C2G_ReqMissFrame(Player player, BaseMsg data){
+            var reqMsg = data as Msg_ReqMissFrame;
+            var nextCheckTick = reqMsg.StartTick;
+            Log($"C2G_ReqMissFrame nextCheckTick id:{player.LocalId}:{nextCheckTick}");
+            int count = System.Math.Min(System.Math.Min((Tick - 1), _allHistoryFrames.Count) - nextCheckTick,
+                MaxRepMissFrameCountPerPack);
+            if (count <= 0) return;
+            var msg = new Msg_RepMissFrame();
+            var frames = new ServerFrame[count];
+            for (int i = 0; i < count; i++) {
+                frames[i] = _allHistoryFrames[nextCheckTick + i];
+                Logging.Debug.Assert(frames[i] != null);
+            }
+
+            msg.startTick = frames[0].tick;
+            msg.frames = frames;
+            SendUdp(player, EMsgSC.G2C_RepMissFrame, msg, true);
+        }
+
+        void C2G_RepMissFrameAck(Player player, BaseMsg data){
+            var msg = data as Msg_RepMissFrameAck;
+            Log($"C2G_RepMissFrameAck missFrameTick:{msg.MissFrameTick}");
+        }
+
+
+        void C2G_LoadingProgress(Player player, BaseMsg data){
+            if (State != EGameState.Loading) return;
+            var msg = data as Msg_C2G_LoadingProgress;
+            if (_playerLoadingProgress == null) {
+                _playerLoadingProgress = new byte[MaxPlayerCount];
+            }
+
+            _playerLoadingProgress[player.LocalId] = msg.Progress;
+
+            //Log($"palyer{player.LocalId} Load {msg.Progress}");
+
+            BorderTcp(EMsgSC.G2C_LoadingProgress, new Msg_G2C_LoadingProgress() {
+                Progress = _playerLoadingProgress
+            });
+
+            if (msg.Progress < 100) return;
+            var isDone = true;
+            foreach (var progress in _playerLoadingProgress) {
+                if (progress < 100) {
+                    isDone = false;
+                    break;
+                }
+            }
+
+            if (isDone) {
+                OnFinishedLoaded();
+            }
+        }
+
+
+        void OnFinishedLoaded(){
+            Log("All Load done");
+            State = EGameState.PartLoaded;
+            for (int i = 0; i < _playerLoadingProgress.Length; i++) {
+                _playerLoadingProgress[i] = 0;
+            }
+
+            _allNeedWaitInputPlayerIds = new List<byte>();
+            foreach (var val in _userId2LocalId.Values) {
+                _allNeedWaitInputPlayerIds.Add(val);
+            }
+
+            //BorderTcp(EMsgSC.G2C_GameStartInfo, GameStartInfo);
+            BorderTcp(EMsgSC.G2C_AllFinishedLoaded, new Msg_G2C_AllFinishedLoaded() { });
+        }
+
+        #endregion
+    }
+}
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `input` last assigned on line 539 could be null and is dereferenced at line 551, column 13.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void Game.C2G_PlayerInput(Player,BaseMsg)
+
+### File:
+Server/Src/SimpleServer/Src/Server/Game.cs
+
+### Key:
+Game.cs|C2G_PlayerInput|NULL_DEREFERENCE
+
+### Node Key:
+09edcf2a75ac2f8cb6226ac52778403c
+
+### Hash:
+290197c80f46558e40231c567b2f004d
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0168/instruction.md

@@ -0,0 +1,293 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** ServiceStack.Text
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+//
+// https://github.com/ServiceStack/ServiceStack.Text
+// ServiceStack.Text: .NET C# POCO JSON, JSV and CSV Text Serializers.
+//
+// Authors:
+//   Demis Bellot (demis.bellot@gmail.com)
+//
+// Copyright 2012 ServiceStack Ltd.
+//
+// Licensed under the same terms of ServiceStack: new BSD license.
+//
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using System.Threading;
+using System.Linq;
+using ServiceStack.Text.Json;
+
+namespace ServiceStack.Text.Common
+{
+    internal delegate void WriteMapDelegate(
+        TextWriter writer,
+        object oMap,
+        WriteObjectDelegate writeKeyFn,
+        WriteObjectDelegate writeValueFn);
+
+    internal static class WriteDictionary<TSerializer>
+        where TSerializer : ITypeSerializer
+    {
+        private static readonly ITypeSerializer Serializer = JsWriter.GetTypeSerializer<TSerializer>();
+
+        internal class MapKey
+        {
+            internal Type KeyType;
+            internal Type ValueType;
+
+            public MapKey(Type keyType, Type valueType)
+            {
+                KeyType = keyType;
+                ValueType = valueType;
+            }
+
+            public bool Equals(MapKey other)
+            {
+                if (ReferenceEquals(null, other)) return false;
+                if (ReferenceEquals(this, other)) return true;
+                return Equals(other.KeyType, KeyType) && Equals(other.ValueType, ValueType);
+            }
+
+            public override bool Equals(object obj)
+            {
+                if (ReferenceEquals(null, obj)) return false;
+                if (ReferenceEquals(this, obj)) return true;
+                if (obj.GetType() != typeof(MapKey)) return false;
+                return Equals((MapKey)obj);
+            }
+
+            public override int GetHashCode()
+            {
+                unchecked
+                {
+                    return ((KeyType != null ? KeyType.GetHashCode() : 0) * 397) ^ (ValueType != null ? ValueType.GetHashCode() : 0);
+                }
+            }
+        }
+
+        static Dictionary<MapKey, WriteMapDelegate> CacheFns = new Dictionary<MapKey, WriteMapDelegate>();
+
+        public static Action<TextWriter, object, WriteObjectDelegate, WriteObjectDelegate>
+            GetWriteGenericDictionary(Type keyType, Type valueType)
+        {
+            WriteMapDelegate writeFn;
+            var mapKey = new MapKey(keyType, valueType);
+            if (CacheFns.TryGetValue(mapKey, out writeFn)) return writeFn.Invoke;
+
+            var genericType = typeof(ToStringDictionaryMethods<,,>).MakeGenericType(keyType, valueType, typeof(TSerializer));
+            var mi = genericType.GetPublicStaticMethod("WriteIDictionary");
+            writeFn = (WriteMapDelegate)mi.MakeDelegate(typeof(WriteMapDelegate));
+
+            Dictionary<MapKey, WriteMapDelegate> snapshot, newCache;
+            do
+            {
+                snapshot = CacheFns;
+                newCache = new Dictionary<MapKey, WriteMapDelegate>(CacheFns);
+                newCache[mapKey] = writeFn;
+
+            } while (!ReferenceEquals(
+                Interlocked.CompareExchange(ref CacheFns, newCache, snapshot), snapshot));
+
+            return writeFn.Invoke;
+        }
+
+        public static void WriteIDictionary(TextWriter writer, object oMap)
+        {
+            WriteObjectDelegate writeKeyFn = null;
+            WriteObjectDelegate writeValueFn = null;
+
+            writer.Write(JsWriter.MapStartChar);
+            var encodeMapKey = false;
+
+            var map = (IDictionary)oMap;
+            var ranOnce = false;
+            foreach (var key in map.Keys)
+            {
+                var dictionaryValue = map[key];
+
+                var isNull = (dictionaryValue == null);
+                if (isNull && !Serializer.IncludeNullValues) continue;
+
+                if (writeKeyFn == null)
+                {
+                    var keyType = key.GetType();
+                    writeKeyFn = Serializer.GetWriteFn(keyType);
+                    encodeMapKey = Serializer.GetTypeInfo(keyType).EncodeMapKey;
+                }
+
+                if (writeValueFn == null)
+                    writeValueFn = Serializer.GetWriteFn(dictionaryValue.GetType());
+
+                JsWriter.WriteItemSeperatorIfRanOnce(writer, ref ranOnce);
+
+                JsState.WritingKeyCount++;
+                JsState.IsWritingValue = false;
+
+                if (encodeMapKey)
+                {
+                    JsState.IsWritingValue = true; //prevent ""null""
+                    writer.Write(JsWriter.QuoteChar);
+                    writeKeyFn(writer, key);
+                    writer.Write(JsWriter.QuoteChar);
+                }
+                else
+                {
+                    writeKeyFn(writer, key);
+                }
+
+                JsState.WritingKeyCount--;
+
+                writer.Write(JsWriter.MapKeySeperator);
+
+                if (isNull)
+                {
+                    writer.Write(JsonUtils.Null);
+                }
+                else
+                {
+                    JsState.IsWritingValue = true;
+                    writeValueFn(writer, dictionaryValue);
+                    JsState.IsWritingValue = false;
+                }
+            }
+
+            writer.Write(JsWriter.MapEndChar);
+        }
+    }
+
+    internal static class ToStringDictionaryMethods<TKey, TValue, TSerializer>
+        where TSerializer : ITypeSerializer
+    {
+        private static readonly ITypeSerializer Serializer = JsWriter.GetTypeSerializer<TSerializer>();
+
+        public static void WriteIDictionary(
+            TextWriter writer,
+            object oMap,
+            WriteObjectDelegate writeKeyFn,
+            WriteObjectDelegate writeValueFn)
+        {
+            if (writer == null) return; //AOT
+            WriteGenericIDictionary(writer, (IDictionary<TKey, TValue>)oMap, writeKeyFn, writeValueFn);
+        }
+
+        public static void WriteGenericIDictionary(
+            TextWriter writer,
+            IDictionary<TKey, TValue> map,
+            WriteObjectDelegate writeKeyFn,
+            WriteObjectDelegate writeValueFn)
+        {
+            if (map == null)
+            {
+                writer.Write(JsonUtils.Null);
+                return;
+            }
+            writer.Write(JsWriter.MapStartChar);
+
+            var encodeMapKey = Serializer.GetTypeInfo(typeof(TKey)).EncodeMapKey;
+
+            var ranOnce = false;
+            foreach (var kvp in map)
+            {
+                var isNull = (kvp.Value == null);
+                if (isNull && !Serializer.IncludeNullValues) continue;
+
+                JsWriter.WriteItemSeperatorIfRanOnce(writer, ref ranOnce);
+
+                JsState.WritingKeyCount++;
+                JsState.IsWritingValue = false;
+
+                if (encodeMapKey)
+                {
+                    JsState.IsWritingValue = true; //prevent ""null""
+                    writer.Write(JsWriter.QuoteChar);
+                    writeKeyFn(writer, kvp.Key);
+                    writer.Write(JsWriter.QuoteChar);
+                }
+                else
+                {
+                    writeKeyFn(writer, kvp.Key);
+                }
+
+                JsState.WritingKeyCount--;
+
+                writer.Write(JsWriter.MapKeySeperator);
+
+                if (isNull)
+                {
+                    writer.Write(JsonUtils.Null);
+                }
+                else
+                {
+                    JsState.IsWritingValue = true;
+                    writeValueFn(writer, kvp.Value);
+                    JsState.IsWritingValue = false;
+                }
+            }
+
+            writer.Write(JsWriter.MapEndChar);
+        }
+    }
+}
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `dictionaryValue` last assigned on line 107 could be null and is dereferenced at line 120, column 6.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void WriteDictionary`1<TSerializer>.WriteIDictionary(TextWriter,Object)
+
+### File:
+src/ServiceStack.Text/Common/WriteDictionary.cs
+
+### Key:
+WriteDictionary.cs|WriteIDictionary|NULL_DEREFERENCE
+
+### Node Key:
+277c5e4fc7793eba679254e42372b233
+
+### Hash:
+61e59a1bd1b57f50d7ea49062f87a00a
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0169/instruction.md

@@ -0,0 +1,300 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** ServiceStack.Text
+**Bug ID:** 3
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+//
+// https://github.com/ServiceStack/ServiceStack.Text
+// ServiceStack.Text: .NET C# POCO JSON, JSV and CSV Text Serializers.
+//
+// Authors:
+//   Demis Bellot (demis.bellot@gmail.com)
+//
+// Copyright 2012 Service Stack LLC. All Rights Reserved.
+//
+// Licensed under the same terms of ServiceStack.
+//
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using System.Threading;
+using System.Linq;
+using ServiceStack.Text.Json;
+
+namespace ServiceStack.Text.Common
+{
+    internal delegate void WriteMapDelegate(
+        TextWriter writer,
+        object oMap,
+        WriteObjectDelegate writeKeyFn,
+        WriteObjectDelegate writeValueFn);
+
+    internal static class WriteDictionary<TSerializer>
+        where TSerializer : ITypeSerializer
+    {
+        private static readonly ITypeSerializer Serializer = JsWriter.GetTypeSerializer<TSerializer>();
+
+        internal class MapKey
+        {
+            internal Type KeyType;
+            internal Type ValueType;
+
+            public MapKey(Type keyType, Type valueType)
+            {
+                KeyType = keyType;
+                ValueType = valueType;
+            }
+
+            public bool Equals(MapKey other)
+            {
+                if (ReferenceEquals(null, other)) return false;
+                if (ReferenceEquals(this, other)) return true;
+                return Equals(other.KeyType, KeyType) && Equals(other.ValueType, ValueType);
+            }
+
+            public override bool Equals(object obj)
+            {
+                if (ReferenceEquals(null, obj)) return false;
+                if (ReferenceEquals(this, obj)) return true;
+                if (obj.GetType() != typeof(MapKey)) return false;
+                return Equals((MapKey)obj);
+            }
+
+            public override int GetHashCode()
+            {
+                unchecked
+                {
+                    return ((KeyType != null ? KeyType.GetHashCode() : 0) * 397) ^ (ValueType != null ? ValueType.GetHashCode() : 0);
+                }
+            }
+        }
+
+        static Dictionary<MapKey, WriteMapDelegate> CacheFns = new Dictionary<MapKey, WriteMapDelegate>();
+
+        public static Action<TextWriter, object, WriteObjectDelegate, WriteObjectDelegate>
+            GetWriteGenericDictionary(Type keyType, Type valueType)
+        {
+            WriteMapDelegate writeFn;
+            var mapKey = new MapKey(keyType, valueType);
+            if (CacheFns.TryGetValue(mapKey, out writeFn)) return writeFn.Invoke;
+
+            var genericType = typeof(ToStringDictionaryMethods<,,>).MakeGenericType(keyType, valueType, typeof(TSerializer));
+            var mi = genericType.GetStaticMethod("WriteIDictionary");
+            writeFn = (WriteMapDelegate)mi.MakeDelegate(typeof(WriteMapDelegate));
+
+            Dictionary<MapKey, WriteMapDelegate> snapshot, newCache;
+            do
+            {
+                snapshot = CacheFns;
+                newCache = new Dictionary<MapKey, WriteMapDelegate>(CacheFns);
+                newCache[mapKey] = writeFn;
+
+            } while (!ReferenceEquals(
+                Interlocked.CompareExchange(ref CacheFns, newCache, snapshot), snapshot));
+
+            return writeFn.Invoke;
+        }
+
+        public static void WriteIDictionary(TextWriter writer, object oMap)
+        {
+            WriteObjectDelegate writeKeyFn = null;
+            WriteObjectDelegate writeValueFn = null;
+
+            writer.Write(JsWriter.MapStartChar);
+            var encodeMapKey = false;
+            Type lastKeyType = null;
+            Type lastValueType = null;
+
+            var map = (IDictionary)oMap;
+            var ranOnce = false;
+            foreach (var key in map.Keys)
+            {
+                var dictionaryValue = map[key];
+
+                var isNull = (dictionaryValue == null);
+                if (isNull && !Serializer.IncludeNullValues) continue;
+
+                var keyType = key.GetType();
+                if (writeKeyFn == null || lastKeyType != keyType)
+                {
+                    lastKeyType = keyType;
+                    writeKeyFn = Serializer.GetWriteFn(keyType);
+                    encodeMapKey = Serializer.GetTypeInfo(keyType).EncodeMapKey;
+                }
+
+                JsWriter.WriteItemSeperatorIfRanOnce(writer, ref ranOnce);
+
+                JsState.WritingKeyCount++;
+                JsState.IsWritingValue = false;
+
+                if (encodeMapKey)
+                {
+                    JsState.IsWritingValue = true; //prevent ""null""
+                    writer.Write(JsWriter.QuoteChar);
+                    writeKeyFn(writer, key);
+                    writer.Write(JsWriter.QuoteChar);
+                }
+                else
+                {
+                    writeKeyFn(writer, key);
+                }
+
+                JsState.WritingKeyCount--;
+
+                writer.Write(JsWriter.MapKeySeperator);
+
+                if (isNull)
+                {
+                    writer.Write(JsonUtils.Null);
+                }
+                else
+                {
+                    var valueType = dictionaryValue.GetType();
+                    if (writeValueFn == null || lastValueType != valueType)
+                    {
+                        lastValueType = valueType;
+                        writeValueFn = Serializer.GetWriteFn(valueType);
+                    }
+
+                    JsState.IsWritingValue = true;
+                    writeValueFn(writer, dictionaryValue);
+                    JsState.IsWritingValue = false;
+                }
+            }
+
+            writer.Write(JsWriter.MapEndChar);
+        }
+    }
+
+    public static class ToStringDictionaryMethods<TKey, TValue, TSerializer>
+        where TSerializer : ITypeSerializer
+    {
+        private static readonly ITypeSerializer Serializer = JsWriter.GetTypeSerializer<TSerializer>();
+
+        public static void WriteIDictionary(
+            TextWriter writer,
+            object oMap,
+            WriteObjectDelegate writeKeyFn,
+            WriteObjectDelegate writeValueFn)
+        {
+            if (writer == null) return; //AOT
+            WriteGenericIDictionary(writer, (IDictionary<TKey, TValue>)oMap, writeKeyFn, writeValueFn);
+        }
+
+        public static void WriteGenericIDictionary(
+            TextWriter writer,
+            IDictionary<TKey, TValue> map,
+            WriteObjectDelegate writeKeyFn,
+            WriteObjectDelegate writeValueFn)
+        {
+            if (map == null)
+            {
+                writer.Write(JsonUtils.Null);
+                return;
+            }
+            writer.Write(JsWriter.MapStartChar);
+
+            var encodeMapKey = Serializer.GetTypeInfo(typeof(TKey)).EncodeMapKey;
+
+            var ranOnce = false;
+            foreach (var kvp in map)
+            {
+                var isNull = (kvp.Value == null);
+                if (isNull && !Serializer.IncludeNullValues) continue;
+
+                JsWriter.WriteItemSeperatorIfRanOnce(writer, ref ranOnce);
+
+                JsState.WritingKeyCount++;
+                JsState.IsWritingValue = false;
+
+                if (encodeMapKey)
+                {
+                    JsState.IsWritingValue = true; //prevent ""null""
+                    writer.Write(JsWriter.QuoteChar);
+                    writeKeyFn(writer, kvp.Key);
+                    writer.Write(JsWriter.QuoteChar);
+                }
+                else
+                {
+                    writeKeyFn(writer, kvp.Key);
+                }
+
+                JsState.WritingKeyCount--;
+
+                writer.Write(JsWriter.MapKeySeperator);
+
+                if (isNull)
+                {
+                    writer.Write(JsonUtils.Null);
+                }
+                else
+                {
+                    JsState.IsWritingValue = true;
+                    writeValueFn(writer, kvp.Value);
+                    JsState.IsWritingValue = false;
+                }
+            }
+
+            writer.Write(JsWriter.MapEndChar);
+        }
+    }
+}
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `dictionaryValue` last assigned on line 107 could be null and is dereferenced at line 120, column 6.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void WriteDictionary`1<TSerializer>.WriteIDictionary(TextWriter,Object)
+
+### File:
+src/ServiceStack.Text/Common/WriteDictionary.cs
+
+### Key:
+WriteDictionary.cs|WriteIDictionary|NULL_DEREFERENCE
+
+### Node Key:
+277c5e4fc7793eba679254e42372b233
+
+### Hash:
+61e59a1bd1b57f50d7ea49062f87a00a
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0192/instruction.md

@@ -0,0 +1,146 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** NEventStore
+**Bug ID:** 2
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+namespace EventStore
+{
+	using System;
+	using System.Collections.Generic;
+	using Dispatcher;
+	using Persistence;
+
+	public class OptimisticEventStore : IStoreEvents, ICommitEvents
+	{
+		private readonly CommitTracker tracker = new CommitTracker();
+		private readonly IPersistStreams persistence;
+		private readonly IDispatchCommits dispatcher;
+
+		public OptimisticEventStore(IPersistStreams persistence, IDispatchCommits dispatcher)
+		{
+			this.persistence = persistence;
+			this.dispatcher = dispatcher;
+		}
+
+		public virtual IEventStream CreateStream(Guid streamId)
+		{
+			return new OptimisticEventStream(streamId, this.persistence);
+		}
+		public virtual IEventStream OpenStream(Guid streamId, int minRevision, int maxRevision)
+		{
+			var commits = this.persistence.GetFrom(streamId, minRevision, maxRevision);
+			var stream = new OptimisticEventStream(streamId, this, minRevision, maxRevision, commits);
+			return stream.CommitSequence == 0 ? null : stream;
+		}
+
+		public virtual IEnumerable<Commit> GetFrom(Guid streamId, int minRevision, int maxRevision)
+		{
+			var commits = this.persistence.GetFrom(streamId, minRevision, maxRevision);
+			foreach (var commit in commits)
+			{
+				this.tracker.Track(commit);
+				yield return commit;
+			}
+		}
+
+		public virtual void Commit(Commit attempt)
+		{
+			if (!attempt.IsValid() || attempt.IsEmpty())
+				return;
+
+			this.ThrowOnDuplicateOrConcurrentWrites(attempt);
+			this.PersistAndDispatch(attempt);
+		}
+		protected virtual void ThrowOnDuplicateOrConcurrentWrites(Commit attempt)
+		{
+			if (this.tracker.Contains(attempt))
+				throw new DuplicateCommitException();
+
+			var head = this.tracker.GetStreamHead(attempt.StreamId);
+			if (head == null)
+				return;
+
+			if (head.CommitSequence >= attempt.CommitSequence)
+				throw new ConcurrencyException();
+
+			if (head.StreamRevision >= attempt.StreamRevision)
+				throw new ConcurrencyException();
+
+			if (head.CommitSequence < attempt.CommitSequence)
+				throw new StorageException(); // beyond the end of the stream
+
+			if (head.StreamRevision < attempt.StreamRevision - attempt.Events.Count)
+				throw new StorageException(); // beyond the end of the stream
+		}
+		protected virtual void PersistAndDispatch(Commit attempt)
+		{
+			this.persistence.Commit(attempt);
+			this.tracker.Track(attempt);
+			this.dispatcher.Dispatch(attempt);
+		}
+
+		public virtual Snapshot GetSnapshot(Guid streamId, int maxRevision)
+		{
+			// TODO: cache
+			return this.persistence.GetSnapshot(streamId, maxRevision);
+		}
+		public virtual bool AddSnapshot(Snapshot snapshot)
+		{
+			// TODO: update cache
+			return this.persistence.AddSnapshot(snapshot);
+		}
+	}
+}
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource return of type EventStore.OptimisticEventStream, Leaked resource stream of type EventStore.OptimisticEventStream in method "IEventStream OptimisticEventStore.OpenStream(Guid,Int32,Int32)".
+
+### Severity:
+ERROR
+
+### Procedure:
+IEventStream OptimisticEventStore.OpenStream(Guid,Int32,Int32)
+
+### File:
+src/proj/EventStore.Core/OptimisticEventStore.cs
+
+### Key:
+OptimisticEventStore.cs|OpenStream|DOTNET_RESOURCE_LEAK
+
+### Hash:
+7662e6ac925bdc48f65917a14cae4b94
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0193/instruction.md

@@ -0,0 +1,151 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** linq2db.EntityFrameworkCore
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using JetBrains.Annotations;
+using LinqToDB.Linq;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+
+namespace LinqToDB.EntityFrameworkCore
+{
+	using Data;
+
+	public static partial class LinqToDBForEFTools
+	{
+		#region BulkCopy
+
+		/// <summary>
+		/// Performs bulk insert operation.
+		/// </summary>
+		/// <typeparam name="T">Mapping type of inserted record.</typeparam>
+		/// <param name="context">Database context.</param>
+		/// <param name="options">Operation options.</param>
+		/// <param name="source">Records to insert.</param>
+		/// <returns>Bulk insert operation status.</returns>
+		public static BulkCopyRowsCopied BulkCopy<T>([NotNull] this DbContext context, BulkCopyOptions options, IEnumerable<T> source)
+		{
+			if (context == null) throw new ArgumentNullException(nameof(context));
+
+			return context.CreateLinqToDbConnection().BulkCopy(options, source);
+		}
+
+		/// <summary>
+		/// Performs bulk insert operation.
+		/// </summary>
+		/// <typeparam name="T">Mapping type of inserted record.</typeparam>
+		/// <param name="context">Database context.</param>
+		/// <param name="maxBatchSize">Number of rows in each batch. At the end of each batch, the rows in the batch are sent to the server. </param>
+		/// <param name="source">Records to insert.</param>
+		/// <returns>Bulk insert operation status.</returns>
+		public static BulkCopyRowsCopied BulkCopy<T>([NotNull] this DbContext context, int maxBatchSize, IEnumerable<T> source)
+		{
+			if (context == null) throw new ArgumentNullException(nameof(context));
+
+			var dataConnection = context.CreateLinqToDbConnection();
+
+			return dataConnection.DataProvider.BulkCopy(
+				dataConnection,
+				new BulkCopyOptions { MaxBatchSize = maxBatchSize },
+				source);
+		}
+
+		/// <summary>
+		/// Performs bulk insert operation.
+		/// </summary>
+		/// <typeparam name="T">Mapping type of inserted record.</typeparam>
+		/// <param name="context">Database context.</param>
+		/// <param name="source">Records to insert.</param>
+		/// <returns>Bulk insert operation status.</returns>
+		public static BulkCopyRowsCopied BulkCopy<T>([NotNull] this DbContext context, IEnumerable<T> source)
+		{
+			if (context == null) throw new ArgumentNullException(nameof(context));
+
+			var dataConnection = context.CreateLinqToDbConnection();
+
+			return dataConnection.DataProvider.BulkCopy(
+				dataConnection,
+				new BulkCopyOptions(),
+				source);
+		}
+
+		#endregion
+
+		#region Value Insertable
+
+		/// <summary>
+		/// Starts LINQ query definition for insert operation.
+		/// </summary>
+		/// <typeparam name="T">Target table mapping class.</typeparam>
+		/// <param name="context">Database context.</param>
+		/// <param name="target">Target table.</param>
+		/// <returns>Insertable source query.</returns>
+		[LinqTunnel]
+		[Pure]
+		public static IValueInsertable<T> Into<T>([NotNull] this DbContext context, [NotNull] ITable<T> target)
+		{
+			if (context == null) throw new ArgumentNullException(nameof(context));
+			if (target == null)  throw new ArgumentNullException(nameof(target));
+
+			return context.CreateLinqToDbConnection().Into(target);
+		}
+
+		#endregion
+	}
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource dataConnection of type LinqToDB.Data.DataConnection in method "BulkCopyRowsCopied LinqToDBForEFTools.BulkCopy(DbContext,IEnumerable`1<!0>)".
+
+### Severity:
+ERROR
+
+### Procedure:
+BulkCopyRowsCopied LinqToDBForEFTools.BulkCopy(DbContext,IEnumerable`1<!0>)
+
+### File:
+Source/LinqToDB.EntityFrameworkCore/LinqToDBForEFTools.ContextExtensions.cs
+
+### Key:
+LinqToDBForEFTools.ContextExtensions.cs|BulkCopy|DOTNET_RESOURCE_LEAK
+
+### Hash:
+75f64d3b817b09748a3500438eddf3d0
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0194/instruction.md

@@ -0,0 +1,151 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** linq2db.EntityFrameworkCore
+**Bug ID:** 3
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using JetBrains.Annotations;
+using LinqToDB.Linq;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+
+namespace LinqToDB.EntityFrameworkCore
+{
+	using Data;
+
+	public static partial class LinqToDBForEFTools
+	{
+		#region BulkCopy
+
+		/// <summary>
+		/// Performs bulk insert operation.
+		/// </summary>
+		/// <typeparam name="T">Mapping type of inserted record.</typeparam>
+		/// <param name="context">Database context.</param>
+		/// <param name="options">Operation options.</param>
+		/// <param name="source">Records to insert.</param>
+		/// <returns>Bulk insert operation status.</returns>
+		public static BulkCopyRowsCopied BulkCopy<T>([NotNull] this DbContext context, BulkCopyOptions options, IEnumerable<T> source)
+		{
+			if (context == null) throw new ArgumentNullException(nameof(context));
+
+			return context.CreateLinqToDbConnection().BulkCopy(options, source);
+		}
+
+		/// <summary>
+		/// Performs bulk insert operation.
+		/// </summary>
+		/// <typeparam name="T">Mapping type of inserted record.</typeparam>
+		/// <param name="context">Database context.</param>
+		/// <param name="maxBatchSize">Number of rows in each batch. At the end of each batch, the rows in the batch are sent to the server. </param>
+		/// <param name="source">Records to insert.</param>
+		/// <returns>Bulk insert operation status.</returns>
+		public static BulkCopyRowsCopied BulkCopy<T>([NotNull] this DbContext context, int maxBatchSize, IEnumerable<T> source)
+		{
+			if (context == null) throw new ArgumentNullException(nameof(context));
+
+			var dataConnection = context.CreateLinqToDbConnection();
+
+			return dataConnection.DataProvider.BulkCopy(
+				dataConnection,
+				new BulkCopyOptions { MaxBatchSize = maxBatchSize },
+				source);
+		}
+
+		/// <summary>
+		/// Performs bulk insert operation.
+		/// </summary>
+		/// <typeparam name="T">Mapping type of inserted record.</typeparam>
+		/// <param name="context">Database context.</param>
+		/// <param name="source">Records to insert.</param>
+		/// <returns>Bulk insert operation status.</returns>
+		public static BulkCopyRowsCopied BulkCopy<T>([NotNull] this DbContext context, IEnumerable<T> source)
+		{
+			if (context == null) throw new ArgumentNullException(nameof(context));
+
+			var dataConnection = context.CreateLinqToDbConnection();
+
+			return dataConnection.DataProvider.BulkCopy(
+				dataConnection,
+				new BulkCopyOptions(),
+				source);
+		}
+
+		#endregion
+
+		#region Value Insertable
+
+		/// <summary>
+		/// Starts LINQ query definition for insert operation.
+		/// </summary>
+		/// <typeparam name="T">Target table mapping class.</typeparam>
+		/// <param name="context">Database context.</param>
+		/// <param name="target">Target table.</param>
+		/// <returns>Insertable source query.</returns>
+		[LinqTunnel]
+		[Pure]
+		public static IValueInsertable<T> Into<T>([NotNull] this DbContext context, [NotNull] ITable<T> target)
+		{
+			if (context == null) throw new ArgumentNullException(nameof(context));
+			if (target == null)  throw new ArgumentNullException(nameof(target));
+
+			return context.CreateLinqToDbConnection().Into(target);
+		}
+
+		#endregion
+	}
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (returned from LinqToDB.Data.DataConnection LinqToDB.EntityFrameworkCore.LinqToDBForEFTools::CreateLinqToDbConnection(Microsoft.EntityFrameworkCore.DbContext,Microsoft.EntityFrameworkCore.Storage.IDbContextTransaction) at Line 27) of type LinqToDB.Data.DataConnection in method "BulkCopyRowsCopied LinqToDBForEFTools.BulkCopy(DbContext,BulkCopyOptions,IEnumerable`1<!0>)".
+
+### Severity:
+ERROR
+
+### Procedure:
+BulkCopyRowsCopied LinqToDBForEFTools.BulkCopy(DbContext,BulkCopyOptions,IEnumerable`1<!0>)
+
+### File:
+Source/LinqToDB.EntityFrameworkCore/LinqToDBForEFTools.ContextExtensions.cs
+
+### Key:
+LinqToDBForEFTools.ContextExtensions.cs|BulkCopy|DOTNET_RESOURCE_LEAK
+
+### Hash:
+bdfaa036462ad9e1013f0709b6117e68
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0216/instruction.md

@@ -0,0 +1,208 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** PluginCore
+**Bug ID:** 8
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using PluginCore.Models;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Mvc.Infrastructure;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+using Microsoft.Extensions.FileProviders;
+using PluginCore.Authorization;
+using PluginCore.AdminUI;
+using PluginCore.Middlewares;
+
+namespace PluginCore.Extensions
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public static class PluginCoreStartupExtensions
+    {
+        private static IWebHostEnvironment _webHostEnvironment;
+
+        public static void AddPluginCore(this IServiceCollection services)
+        {
+            // 用于添加插件Controller 时，通知Controller.Action发生变化
+            services.AddSingleton<IActionDescriptorChangeProvider>(PluginActionDescriptorChangeProvider.Instance);
+            services.AddSingleton(PluginActionDescriptorChangeProvider.Instance);
+            services.AddTransient<PluginControllerManager>();
+            services.AddTransient<PluginManager>();
+            services.AddTransient<PluginFinder>();
+
+            using (var serviceProvider = services.BuildServiceProvider())
+            {
+                using (var scope = serviceProvider.GetRequiredService<IServiceScopeFactory>().CreateScope())
+                {
+                    PluginManager pluginManager = scope.ServiceProvider.GetService<PluginManager>();
+
+                    // 初始化 PluginCore 相关目录
+                    PluginPathProvider.PluginsRootPath();
+
+                    // 在程序启动时加载所有 已安装的插件
+
+                    // 获取PluginConfigModel
+                    #region 获取 获取PluginConfigModel
+                    PluginConfigModel pluginConfigModel = PluginConfigModelFactory.Create();
+                    #endregion
+
+                    // 已启用的插件
+                    #region 加载 已启用插件的Assemblies
+                    IList<string> enabledPluginIds = pluginConfigModel.EnabledPlugins;
+                    foreach (var pluginId in enabledPluginIds)
+                    {
+                        pluginManager.LoadPlugin(pluginId);
+                    }
+                    #endregion
+
+
+
+                    // 将本 Assembly 内的 Controller 添加
+                    var ass = Assembly.GetExecutingAssembly();
+                    PluginControllerManager pluginControllerManager = scope.ServiceProvider.GetService<PluginControllerManager>();
+                    pluginControllerManager.AddControllers(ass);
+
+
+                    // IWebHostEnvironment
+                    _webHostEnvironment = scope.ServiceProvider.GetService<IWebHostEnvironment>();
+                }
+            }
+
+            // 1. 先 Authentication (我是谁) 2. 再 Authorization (我能做什么)
+
+            // fixed: https://github.com/yiyungent/PluginCore/issues/4
+            // System.InvalidOperationException: No authenticationScheme was specified, and there was no DefaultChallengeScheme found. The default schemes can be set using either AddAuthentication(string defaultScheme) or AddAuthentication(Action<AuthenticationOptions> configureOptions).
+            #region 添加认证 Authentication
+            // 没通过 Authentication: 401 Unauthorized
+            services.AddAuthentication("PluginCore.Authentication")
+                .AddScheme<Authentication.PluginCoreAuthenticationSchemeOptions,
+                    Authentication.PluginCoreAuthenticationHandler>("PluginCore.Authentication", "PluginCore.Authentication",
+                    options => { });
+            #endregion
+
+            #region 添加授权策略-所有标记 [PluginCoreAdminAuthorize] 都需要权限检查
+            services.AddSingleton<IAuthorizationHandler, PluginCoreAdminAuthorizationHandler>();
+
+            services.AddAuthorization(options =>
+            {
+                options.AddPolicy("PluginCoreAdmin", policy =>
+                {
+                    // 无法满足 下方任何一项：HTTP 403 错误
+                    // 3.需要 检查是否拥有当前请求资源的权限
+                    policy.Requirements.Add(new PluginCoreAdminRequirement());
+                });
+            });
+            #endregion
+
+
+            // AccountManager
+            services.AddTransient<AccountManager>();
+            // HttpContext.Current
+            services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();
+            //services.AddHttpContextAccessor();
+
+        }
+
+        public static IApplicationBuilder UsePluginCore(this IApplicationBuilder app)
+        {
+            app.UsePluginCoreAdminUI();
+
+            // 由于没办法在运行时, 动态 UseStaticFiles(), 因此不再为每一个插件都 UseStaticFiles(),
+            // 而是统一在一个文件夹下, 插件启用时, 将插件的wwwroot复制到 Plugins_wwwroot/{PluginId}, 禁用时, 再删除
+            string pluginwwwrootDir = PluginPathProvider.PluginsWwwRootDir();
+            app.UseStaticFiles(new StaticFileOptions
+            {
+                FileProvider = new PhysicalFileProvider(
+                    pluginwwwrootDir),
+                RequestPath = "/Plugins"
+            });
+
+
+            // 发现 UseAuthentication 认证中间件重复添加, 也只会执行一次 认证
+            // 但 UseAuthorization 重复添加2次, 则会执行 2次 授权
+            app.UseAuthentication();
+            app.UseAuthorization();
+
+            // Plugin Middleware
+            //app.UseMiddleware<PluginContentFilterMiddleware>();
+
+
+
+            Config.PluginCoreConfig pluginCoreConfig = Config.PluginCoreConfigFactory.Create();
+
+            Utils.LogUtil.Info("启动成功:");
+            Utils.LogUtil.Info($"前端模式: {pluginCoreConfig.FrontendMode}");
+            Utils.LogUtil.Info($"注意: 更新前端模式 需要 重启站点");
+
+            return app;
+        }
+
+
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (output of Microsoft.Extensions.FileProviders.PhysicalFileProvider::.ctor() at Line 120) of type Microsoft.Extensions.FileProviders.PhysicalFileProvider in method "IApplicationBuilder PluginCoreStartupExtensions.UsePluginCore(IApplicationBuilder)".
+
+### Severity:
+ERROR
+
+### Procedure:
+IApplicationBuilder PluginCoreStartupExtensions.UsePluginCore(IApplicationBuilder)
+
+### File:
+src/PluginCore/Extensions/PluginCoreStartupExtensions.cs
+
+### Key:
+PluginCoreStartupExtensions.cs|UsePluginCore|DOTNET_RESOURCE_LEAK
+
+### Hash:
+8658203f92b8758367489a5309831f46
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0229/instruction.md

@@ -0,0 +1,237 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Jil
+**Bug ID:** 5
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Jil.Deserialize
+{
+    static class NewtonsoftStyleTypeCache<T>
+    {
+        static readonly object InitLock = new object();
+        static Func<TextReader, T> Thunk;
+        public static Exception ExceptionDuringBuild;
+
+        public static Func<TextReader, T> Get()
+        {
+            if (Thunk != null) return Thunk;
+
+            lock (InitLock)
+            {
+                if (Thunk != null) return Thunk;
+
+                Thunk = InlineDeserializerHelper.Build<T>(typeof(NewtonsoftStyleTypeCache<>), DateTimeFormat.NewtonsoftStyleMillisecondsSinceUnixEpoch, allowHashing: true, exceptionDuringBuild: out ExceptionDuringBuild);
+
+                return Thunk;
+            }
+        }
+    }
+
+    static class NewtonsoftStyleNoHashingTypeCache<T>
+    {
+        static readonly object InitLock = new object();
+        static Func<TextReader, T> Thunk;
+        public static Exception ExceptionDuringBuild;
+
+        public static Func<TextReader, T> Get()
+        {
+            if (Thunk != null) return Thunk;
+
+            lock (InitLock)
+            {
+                if (Thunk != null) return Thunk;
+
+                Thunk = InlineDeserializerHelper.Build<T>(typeof(NewtonsoftStyleNoHashingTypeCache<>), DateTimeFormat.NewtonsoftStyleMillisecondsSinceUnixEpoch, allowHashing: false, exceptionDuringBuild: out ExceptionDuringBuild);
+
+                return Thunk;
+            }
+        }
+    }
+
+    static class MillisecondStyleTypeCache<T>
+    {
+        static readonly object InitLock = new object();
+        static Func<TextReader, T> Thunk;
+        public static Exception ExceptionDuringBuild;
+
+        public static Func<TextReader, T> Get()
+        {
+            if (Thunk != null) return Thunk;
+
+            lock (InitLock)
+            {
+                if (Thunk != null) return Thunk;
+
+                Thunk = InlineDeserializerHelper.Build<T>(typeof(MillisecondStyleTypeCache<>), DateTimeFormat.MillisecondsSinceUnixEpoch, allowHashing: true, exceptionDuringBuild: out ExceptionDuringBuild);
+
+                return Thunk;
+            }
+        }
+    }
+
+    static class MillisecondStyleNoHashingTypeCache<T>
+    {
+        static readonly object InitLock = new object();
+        static Func<TextReader, T> Thunk;
+        public static Exception ExceptionDuringBuild;
+
+        public static Func<TextReader, T> Get()
+        {
+            if (Thunk != null) return Thunk;
+
+            lock (InitLock)
+            {
+                if (Thunk != null) return Thunk;
+
+                Thunk = InlineDeserializerHelper.Build<T>(typeof(MillisecondStyleNoHashingTypeCache<>), DateTimeFormat.MillisecondsSinceUnixEpoch, allowHashing: false, exceptionDuringBuild: out ExceptionDuringBuild);
+
+                return Thunk;
+            }
+        }
+    }
+
+    static class SecondStyleTypeCache<T>
+    {
+        static readonly object InitLock = new object();
+        static Func<TextReader, T> Thunk;
+        public static Exception ExceptionDuringBuild;
+
+        public static Func<TextReader, T> Get()
+        {
+            if (Thunk != null) return Thunk;
+
+            lock (InitLock)
+            {
+                if (Thunk != null) return Thunk;
+
+                Thunk = InlineDeserializerHelper.Build<T>(typeof(SecondStyleTypeCache<>), DateTimeFormat.SecondsSinceUnixEpoch, allowHashing: true, exceptionDuringBuild: out ExceptionDuringBuild);
+
+                return Thunk;
+            }
+        }
+    }
+
+    static class SecondStyleNoHashingTypeCache<T>
+    {
+        static readonly object InitLock = new object();
+        static Func<TextReader, T> Thunk;
+        public static Exception ExceptionDuringBuild;
+        
+        public static Func<TextReader, T> Get()
+        {
+            if (Thunk != null) return Thunk;
+
+            lock (InitLock)
+            {
+                if (Thunk != null) return Thunk;
+
+                Thunk = InlineDeserializerHelper.Build<T>(typeof(SecondStyleNoHashingTypeCache<>), DateTimeFormat.SecondsSinceUnixEpoch, allowHashing: false, exceptionDuringBuild: out ExceptionDuringBuild);
+
+                return Thunk;
+            }
+        }
+    }
+
+    static class ISO8601StyleTypeCache<T>
+    {
+        static readonly object InitLock = new object();
+        static Func<TextReader, T> Thunk;
+        public static Exception ExceptionDuringBuild;
+        
+        public static Func<TextReader, T> Get()
+        {
+            if (Thunk != null) return Thunk;
+
+            lock (InitLock)
+            {
+                if (Thunk != null) return Thunk;
+
+                Thunk = InlineDeserializerHelper.Build<T>(typeof(ISO8601StyleTypeCache<>), DateTimeFormat.ISO8601, allowHashing: true, exceptionDuringBuild: out ExceptionDuringBuild);
+
+                return Thunk;
+            }
+        }
+    }
+
+    static class ISO8601StyleNoHashingTypeCache<T>
+    {
+        static readonly object InitLock = new object();
+        static Func<TextReader, T> Thunk;
+        public static Exception ExceptionDuringBuild;
+        
+        public static Func<TextReader, T> Get()
+        {
+            if (Thunk != null) return Thunk;
+
+            lock (InitLock)
+            {
+                if (Thunk != null) return Thunk;
+
+                Thunk = InlineDeserializerHelper.Build<T>(typeof(ISO8601StyleNoHashingTypeCache<>), DateTimeFormat.ISO8601, allowHashing: false, exceptionDuringBuild: out ExceptionDuringBuild);
+
+                return Thunk;
+            }
+        }
+    }
+}
+
+```
+
+### Bug Type:
+THREAD_SAFETY_VIOLATION
+
+### Qualifier:
+Read/Write race. Non-private method `SecondStyleTypeCache`1<T>.Get()` reads without synchronization from `Deserialize.SecondStyleTypeCache`1<T>.Jil.Deserialize.SecondStyleTypeCache`1<T>.Thunk`. Potentially races with write in method `SecondStyleTypeCache`1<T>.Get()`.
+ Reporting because this access may occur on a background thread.
+
+### Severity:
+WARNING
+
+### Procedure:
+Func`2<!0,!1> SecondStyleTypeCache`1<T>.Get()
+
+### File:
+Jil/Deserialize/TypeCaches.cs
+
+### Key:
+TypeCaches.cs|Get|THREAD_SAFETY_VIOLATION
+
+### Hash:
+f742c4353ea14b92c475e8245b816487
+
+### Bug Type Hum:
+Thread Safety Violation
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0301/instruction.md

@@ -0,0 +1,212 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** kiota
+**Bug ID:** 9
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System.Linq;
+using Xunit;
+
+namespace Kiota.Builder.Refiners.Tests {
+    public class RubyLanguageRefinerTests {
+
+        private readonly CodeNamespace graphNS;
+        private readonly CodeClass parentClass;
+        private readonly CodeNamespace root = CodeNamespace.InitRootNamespace();
+        public RubyLanguageRefinerTests() {
+            root = CodeNamespace.InitRootNamespace();
+            graphNS = root.AddNamespace("graph");
+            parentClass = new (graphNS) {
+                Name = "parentClass"
+            };
+            graphNS.AddClass(parentClass);
+        }
+        #region CommonLanguageRefinerTests
+        [Fact]
+        public void AddsDefaultImports() {
+            var model = root.AddClass(new CodeClass (root) {
+                Name = "model",
+                ClassKind = CodeClassKind.Model
+            }).First();
+            var requestBuilder = root.AddClass(new CodeClass(root) {
+                Name = "rb",
+                ClassKind = CodeClassKind.RequestBuilder,
+            }).First();
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.Ruby }, root);
+            Assert.NotEmpty(model.StartBlock.Usings);
+            Assert.NotEmpty(requestBuilder.StartBlock.Usings);
+        }
+        [Fact]
+        public void ReplacesImportsSubNamespace() {
+            var rootNS = parentClass.Parent as CodeNamespace;
+            rootNS.RemoveChildElement(parentClass);
+            graphNS.AddClass(parentClass);
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            var subNS = graphNS.AddNamespace($"{graphNS.Name}.messages");
+            var messageClassDef = new CodeClass(subNS) {
+                Name = "Message",
+            };
+            declaration.Usings.Add(new (parentClass) {
+                Name = "graph",
+                Declaration = new(parentClass) {
+                    Name = "Message",
+                    TypeDefinition = messageClassDef,
+                }
+            });
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.Ruby }, root);
+            Assert.Equal("./messages/message", declaration.Usings.First().Declaration.Name);
+        }
+        [Fact]
+        public void ReplacesImportsParentNamespace() {
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            var subNS = root.AddNamespace("messages");
+            var messageClassDef = new CodeClass(subNS) {
+                Name = "Message",
+            };
+            subNS.AddClass(messageClassDef);
+            declaration.Usings.Add(new (parentClass) {
+                Name = "messages",
+                Declaration = new(parentClass) {
+                    Name = "Message",
+                    TypeDefinition = messageClassDef,
+                }
+            });
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.Ruby }, root);
+            Assert.Equal("../messages/message", declaration.Usings.First().Declaration.Name);
+        }
+        [Fact]
+        public void ReplacesImportsSameNamespace() {
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            var messageClassDef = new CodeClass(graphNS) {
+                Name = "Message",
+            };
+            declaration.Usings.Add(new (parentClass) {
+                Name = "graph",
+                Declaration = new(parentClass) {
+                    Name = "Message",
+                    TypeDefinition = messageClassDef,
+                }
+            });
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.Ruby }, root);
+            Assert.Equal("./message", declaration.Usings.First().Declaration.Name);
+        }
+        #endregion
+        #region RubyLanguageRefinerTests
+        [Fact]
+        public void EscapesReservedKeywords() {
+            var model = root.AddClass(new CodeClass (root) {
+                Name = "break",
+                ClassKind = CodeClassKind.Model
+            }).First();
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.Ruby }, root);
+            Assert.NotEqual("break", model.Name);
+            Assert.Contains("escaped", model.Name);
+        }
+        [Fact]
+        public void AddInheritedAndMethodTypesImports() {
+            var model = root.AddClass(new CodeClass (root) {
+                Name = "model",
+                ClassKind = CodeClassKind.Model
+            }).First();
+            var declaration = model.StartBlock as CodeClass.Declaration;
+            declaration.Inherits = new (parentClass){
+                Name = "someInterface"
+            };
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.Ruby }, root);
+            Assert.Equal("./someInterface", declaration.Usings.First().Declaration.Name);
+        }
+        [Fact]
+        public void FixInheritedEntityType() {
+            var model = root.AddClass(new CodeClass (root) {
+                Name = "model",
+                ClassKind = CodeClassKind.Model
+            }).First();
+            var entity = graphNS.AddClass(new CodeClass (root) {
+                Name = "entity",
+                ClassKind = CodeClassKind.Model
+            }).First();
+            var declaration = model.StartBlock as CodeClass.Declaration;
+            declaration.Inherits = new (entity){
+                Name = "entity"
+            };
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.Ruby }, root);
+            Assert.Equal("Graph::Entity", declaration.Inherits.Name);
+        }
+        [Fact]
+        public void AddNamespaceModuleImports() {
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            var subNS = graphNS.AddNamespace("messages");
+            var messageClassDef = new CodeClass(subNS) {
+                Name = "Message",
+            };
+            subNS.AddClass(messageClassDef);
+            declaration.Usings.Add(new (parentClass) {
+                Name = "messages",
+                Declaration = new(parentClass) {
+                    Name = "Message",
+                    TypeDefinition = messageClassDef,
+                }
+            });
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.Ruby }, root);
+            Assert.Equal("../messages/message", declaration.Usings.First().Declaration.Name);
+            Assert.Equal("./graph", declaration.Usings.Last().Declaration.Name);
+        }
+        #endregion
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `declaration` last assigned on line 73 could be null and is dereferenced at line 77, column 13.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void RubyLanguageRefinerTests.ReplacesImportsSameNamespace()
+
+### File:
+tests/Kiota.Builder.Tests/Refiners/RubyLanguageRefinerTests.cs
+
+### Key:
+RubyLanguageRefinerTests.cs|ReplacesImportsSameNamespace|NULL_DEREFERENCE
+
+### Node Key:
+ef91c4941a914fb0bf4a21cb3664ec51
+
+### Hash:
+bf0015206a7c301c2dc7dd21293504ac
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0306/instruction.md

@@ -0,0 +1,238 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** kiota
+**Bug ID:** 6
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System.Linq;
+using Xunit;
+
+namespace Kiota.Builder.Refiners.Tests {
+    public class TypeScriptLanguageRefinerTests {
+        private readonly CodeNamespace root;
+        private readonly CodeNamespace graphNS;
+        private readonly CodeClass parentClass;
+        public TypeScriptLanguageRefinerTests() {
+            root = CodeNamespace.InitRootNamespace();
+            graphNS = root.AddNamespace("graph");
+            parentClass = new (graphNS) {
+                Name = "parentClass"
+            };
+            graphNS.AddClass(parentClass);
+        }
+#region common
+        [Fact]
+        public void ReplacesImportsSubNamespace() {
+            var rootNS = parentClass.Parent as CodeNamespace;
+            rootNS.RemoveChildElement(parentClass);
+            graphNS.AddClass(parentClass);
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            var subNS = graphNS.AddNamespace($"{graphNS.Name}.messages");
+            var messageClassDef = new CodeClass(subNS) {
+                Name = "Message",
+            };
+            declaration.Usings.Add(new (parentClass) {
+                Name = "graph",
+                Declaration = new(parentClass) {
+                    Name = "Message",
+                    TypeDefinition = messageClassDef,
+                }
+            });
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.TypeScript }, root);
+            Assert.Equal("./messages/message", declaration.Usings.First().Declaration.Name);
+        }
+        [Fact]
+        public void ReplacesImportsParentNamespace() {
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            var subNS = root.AddNamespace("messages");
+            var messageClassDef = new CodeClass(subNS) {
+                Name = "Message",
+            };
+            subNS.AddClass(messageClassDef);
+            declaration.Usings.Add(new (parentClass) {
+                Name = "messages",
+                Declaration = new(parentClass) {
+                    Name = "Message",
+                    TypeDefinition = messageClassDef,
+                }
+            });
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.TypeScript }, root);
+            Assert.Equal("../messages/message", declaration.Usings.First().Declaration.Name);
+        }
+        [Fact]
+        public void ReplacesImportsSameNamespace() {
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            var messageClassDef = new CodeClass(graphNS) {
+                Name = "Message",
+            };
+            declaration.Usings.Add(new (parentClass) {
+                Name = "graph",
+                Declaration = new(parentClass) {
+                    Name = "Message",
+                    TypeDefinition = messageClassDef,
+                }
+            });
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.TypeScript }, root);
+            Assert.Equal("./message", declaration.Usings.First().Declaration.Name);
+        }
+#endregion
+#region typescript
+        private const string HttpCoreDefaultName = "IHttpCore";
+        private const string FactoryDefaultName = "ISerializationWriterFactory";
+        private const string DeserializeDefaultName = "IDictionary<string, Action<Model, IParseNode>>";
+        private const string DateTimeOffsetDefaultName = "DateTimeOffset";
+        private const string AddiationalDataDefaultName = "new Dictionary<string, object>()";
+        private const string HandlerDefaultName = "IResponseHandler";
+        [Fact]
+        public void EscapesReservedKeywords() {
+            var model = root.AddClass(new CodeClass (root) {
+                Name = "break",
+                ClassKind = CodeClassKind.Model
+            }).First();
+            ILanguageRefiner.Refine(new GenerationConfiguration { Language = GenerationLanguage.TypeScript }, root);
+            Assert.NotEqual("break", model.Name);
+            Assert.Contains("escaped", model.Name);
+        }
+        [Fact]
+        public void CorrectsCoreType() {
+
+            var model = root.AddClass(new CodeClass (root) {
+                Name = "model",
+                ClassKind = CodeClassKind.Model
+            }).First();
+            model.AddProperty(new (model) {
+                Name = "core",
+                PropertyKind = CodePropertyKind.HttpCore,
+                Type = new CodeType(model) {
+                    Name = HttpCoreDefaultName
+                }
+            }, new (model) {
+                Name = "someDate",
+                PropertyKind = CodePropertyKind.Custom,
+                Type = new CodeType(model) {
+                    Name = DateTimeOffsetDefaultName,
+                }
+            }, new (model) {
+                Name = "additionalData",
+                PropertyKind = CodePropertyKind.AdditionalData,
+                Type = new CodeType(model) {
+                    Name = AddiationalDataDefaultName
+                }
+            });
+            var executorMethod = model.AddMethod(new CodeMethod(model) {
+                Name = "executor",
+                MethodKind = CodeMethodKind.RequestExecutor,
+                ReturnType = new CodeType(model) {
+                    Name = "string"
+                }
+            }).First();
+            executorMethod.AddParameter(new CodeParameter(executorMethod) {
+                Name = "handler",
+                ParameterKind = CodeParameterKind.ResponseHandler,
+                Type = new CodeType(executorMethod) {
+                    Name = HandlerDefaultName,
+                }
+            });
+            const string serializerDefaultName = "ISerializationWriter";
+            var serializationMethod = model.AddMethod(new CodeMethod(model) {
+                Name = "seriailization",
+                MethodKind = CodeMethodKind.Serializer,
+                ReturnType = new CodeType(model) {
+                    Name = "string"
+                }
+            }).First();
+            serializationMethod.AddParameter(new CodeParameter(serializationMethod) {
+                Name = "handler",
+                ParameterKind = CodeParameterKind.Serializer,
+                Type = new CodeType(executorMethod) {
+                    Name = serializerDefaultName,
+                }
+            });
+            var responseHandlerMethod = model.AddMethod(new CodeMethod(model) {
+                Name = "defaultResponseHandler",
+                ReturnType = new CodeType(model) {
+                    Name = "string"
+                }
+            }, new (model) {
+                Name = "deserializeFields",
+                ReturnType = new CodeType(model) {
+                    Name = DeserializeDefaultName,
+                },
+                MethodKind = CodeMethodKind.Deserializer
+            }).First();
+            const string streamDefaultName = "Stream";
+            responseHandlerMethod.AddParameter(new CodeParameter(responseHandlerMethod) {
+                Name = "param1",
+                Type = new CodeType(responseHandlerMethod) {
+                    Name = streamDefaultName
+                }
+            });
+            ILanguageRefiner.Refine(new GenerationConfiguration{ Language = GenerationLanguage.TypeScript }, root);
+            Assert.Empty(model.GetChildElements(true).OfType<CodeProperty>().Where(x => HttpCoreDefaultName.Equals(x.Type.Name)));
+            Assert.Empty(model.GetChildElements(true).OfType<CodeProperty>().Where(x => FactoryDefaultName.Equals(x.Type.Name)));
+            Assert.Empty(model.GetChildElements(true).OfType<CodeProperty>().Where(x => DateTimeOffsetDefaultName.Equals(x.Type.Name)));
+            Assert.Empty(model.GetChildElements(true).OfType<CodeProperty>().Where(x => AddiationalDataDefaultName.Equals(x.Type.Name)));
+            Assert.Empty(model.GetChildElements(true).OfType<CodeMethod>().Where(x => DeserializeDefaultName.Equals(x.ReturnType.Name)));
+            Assert.Empty(model.GetChildElements(true).OfType<CodeMethod>().SelectMany(x => x.Parameters).Where(x => HandlerDefaultName.Equals(x.Type.Name)));
+            Assert.Empty(model.GetChildElements(true).OfType<CodeMethod>().SelectMany(x => x.Parameters).Where(x => serializerDefaultName.Equals(x.Type.Name)));
+            Assert.Empty(model.GetChildElements(true).OfType<CodeMethod>().SelectMany(x => x.Parameters).Where(x => streamDefaultName.Equals(x.Type.Name)));
+        }
+    }
+#endregion
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `declaration` last assigned on line 40 could be null and is dereferenced at line 46, column 13.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void TypeScriptLanguageRefinerTests.ReplacesImportsParentNamespace()
+
+### File:
+tests/Kiota.Builder.Tests/Refiners/TypeScriptLanguageRefinerTests.cs
+
+### Key:
+TypeScriptLanguageRefinerTests.cs|ReplacesImportsParentNamespace|NULL_DEREFERENCE
+
+### Node Key:
+ef91c4941a914fb0bf4a21cb3664ec51
+
+### Hash:
+1a2a2ce11981f39b7bd8de91aa5b82a7
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0308/instruction.md

@@ -0,0 +1,157 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** kiota
+**Bug ID:** 17
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.IO;
+using System.Linq;
+using Xunit;
+
+namespace Kiota.Builder.Writers.Ruby.Tests {
+    public class CodeClassDeclarationWriterTests : IDisposable
+    {
+        private const string DefaultPath = "./";
+        private const string DefaultName = "name";
+        private readonly StringWriter tw;
+        private readonly LanguageWriter writer;
+        private readonly CodeClassDeclarationWriter codeElementWriter;
+        private readonly CodeClass parentClass;
+
+        public CodeClassDeclarationWriterTests() {
+            codeElementWriter = new CodeClassDeclarationWriter(new RubyConventionService(), "graph");
+            writer = LanguageWriter.GetLanguageWriter(GenerationLanguage.Ruby, DefaultPath, DefaultName);
+            tw = new StringWriter();
+            writer.SetTextWriter(tw);
+            var root = CodeNamespace.InitRootNamespace();
+            parentClass = new () {
+                Name = "parentClass"
+            };
+            root.AddClass(parentClass);
+        }
+        public void Dispose() {
+            tw?.Dispose();
+            GC.SuppressFinalize(this);
+        }
+        [Fact]
+        public void WritesSimpleDeclaration() {
+            codeElementWriter.WriteCodeElement(parentClass.StartBlock as CodeClass.Declaration, writer);
+            var result = tw.ToString();
+            Assert.Contains("class", result);
+        }
+        [Fact]
+        public void WritesImplementation() {
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            declaration.AddImplements(new CodeType {
+                Name = "someInterface"
+            });
+            codeElementWriter.WriteCodeElement(declaration, writer);
+            var result = tw.ToString();
+            Assert.Contains("include", result);
+        }
+        [Fact]
+        public void WritesInheritance() {
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            declaration.Inherits = new (){
+                Name = "someInterface"
+            };
+            codeElementWriter.WriteCodeElement(declaration, writer);
+            var result = tw.ToString();
+            Assert.Contains("<", result);
+        }
+        [Fact]
+        public void WritesImports() {
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            var messageClass = parentClass.GetImmediateParentOfType<CodeNamespace>().AddClass( new CodeClass {
+                Name = "Message"
+            }).First();
+            declaration.AddUsings(new () {
+                Name = "Objects",
+                Declaration = new() {
+                    Name = "util",
+                    IsExternal = true,
+                }
+            },
+            new () {
+                Name = "project-graph",
+                Declaration = new() {
+                    Name = "Message",
+                    TypeDefinition = messageClass,
+                }
+            });
+            codeElementWriter.WriteCodeElement(declaration, writer);
+            var result = tw.ToString();
+            Assert.Contains("require_relative", result);
+            Assert.Contains("message", result);
+            Assert.Contains("require", result);
+        }
+        [Fact]
+        public void WritesMixins() {
+            var declaration = parentClass.StartBlock as CodeClass.Declaration;
+            declaration.AddImplements(new CodeType {
+                Name = "test"
+            });
+            codeElementWriter.WriteCodeElement(declaration, writer);
+            var result = tw.ToString();
+            Assert.Contains("include", result);
+            Assert.Contains("test", result);
+        }
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `declaration` last assigned on line 85 could be null and is dereferenced at line 86, column 13.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void CodeClassDeclarationWriterTests.WritesMixins()
+
+### File:
+tests/Kiota.Builder.Tests/Writers/Ruby/CodeClassDeclarationWriterTests.cs
+
+### Key:
+CodeClassDeclarationWriterTests.cs|WritesMixins|NULL_DEREFERENCE
+
+### Node Key:
+9ff6f66912dc2a3a36e0c52dc18cdd65
+
+### Hash:
+6dd8b45918f24f343132fe00eb4b2afe
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0330/instruction.md

@@ -0,0 +1,121 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** sentakki
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Collections.Generic;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Graphics.Textures;
+using osu.Framework.Input.Bindings;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Difficulty;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.maimai.Beatmaps;
+using osu.Game.Rulesets.maimai.Mods;
+using osu.Game.Rulesets.maimai.UI;
+using osu.Game.Rulesets.UI;
+
+namespace osu.Game.Rulesets.maimai
+{
+    public class maimaiRuleset : Ruleset
+    {
+        public maimaiRuleset(RulesetInfo rulesetInfo = null)
+            : base(rulesetInfo)
+        {
+        }
+
+        public override string Description => "Washing machine rhythm game.";
+
+        public override DrawableRuleset CreateDrawableRulesetWith(IWorkingBeatmap beatmap, IReadOnlyList<Mod> mods) =>
+            new DrawablemaimaiRuleset(this, beatmap, mods);
+
+        public override IBeatmapConverter CreateBeatmapConverter(IBeatmap beatmap) =>
+            new maimaiBeatmapConverter(beatmap);
+
+        public override DifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) =>
+            new maimaiDifficultyCalculator(this, beatmap);
+
+        public override IEnumerable<Mod> GetModsFor(ModType type)
+        {
+            switch (type)
+            {
+                case ModType.Automation:
+                    return new[] { new maimaiModAutoplay() };
+
+                default:
+                    return new Mod[] { null };
+            }
+        }
+
+        public override string ShortName => "maimai";
+
+        public override IEnumerable<KeyBinding> GetDefaultKeyBindings(int variant = 0) => new[]
+        {
+            new KeyBinding(InputKey.Z, maimaiAction.Button1),
+            new KeyBinding(InputKey.X, maimaiAction.Button2),
+        };
+
+        public override Drawable CreateIcon() => new Sprite
+        {
+            Texture = new TextureStore(new TextureLoaderStore(CreateResourceStore()), false).Get("Textures/coin"),
+        };
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource return of type osu.Framework.Graphics.Sprites.Sprite, Leaked resource (output of osu.Framework.Graphics.Textures.TextureStore::.ctor() at Line 57) of type osu.Framework.Graphics.Textures.TextureStore, Leaked resource (output of osu.Framework.Graphics.Textures.TextureLoaderStore::.ctor() at Line 57) of type osu.Framework.Graphics.Textures.TextureLoaderStore in method "Drawable maimaiRuleset.CreateIcon()".
+
+### Severity:
+ERROR
+
+### Procedure:
+Drawable maimaiRuleset.CreateIcon()
+
+### File:
+osu.Game.Rulesets.maimai/maimaiRuleset.cs
+
+### Key:
+maimaiRuleset.cs|CreateIcon|DOTNET_RESOURCE_LEAK
+
+### Hash:
+853f1cc6cde2a880707d25406252392b
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0337/instruction.md

@@ -0,0 +1,132 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** FbxWriter
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+
+namespace Fbx
+{
+    class Program
+    {
+	    static void Encrypt(byte[] a, byte[] b)
+	    {
+		    byte c = 64;
+		    for (int i = 0; i < 16; i++)
+		    {
+			    a[i] = (byte)(a[i] ^ (byte)(c ^ b[i]));
+			    c = a[i];
+		    }
+	    }
+
+	    static void PrintBytes(byte[] array)
+	    {
+		    foreach(var b in array)
+				Console.Write(b + " ");
+			Console.Write("\n");
+	    }
+
+	    private static readonly byte[] sourceId = { 0x58, 0xAB, 0xA9, 0xF0, 0x6C, 0xA2, 0xD8, 0x3F, 0x4D, 0x47, 0x49, 0xA3, 0xB4, 0xB2, 0xE7, 0x3D };
+	    private static readonly byte[] key =      { 0xE2, 0x4F, 0x7B, 0x5F, 0xCD, 0xE4, 0xC8, 0x6D, 0xDB, 0xD8, 0xFB, 0xD7, 0x40, 0x58, 0xC6, 0x78 };
+
+        static void Main(string[] args)
+        {
+			Console.WriteLine("Start");
+			var stream = new FileStream(args[0], FileMode.Open);
+	        int version;
+	        var node = (new FbxBinaryReader(stream)).Read(out version);
+			stream.Close();
+
+			stream = new FileStream(args[1], FileMode.Create);
+			(new FbxBinaryWriter(stream)).Write(node);
+			stream.Close();
+
+	        /*var timestamp = node["FBXHeaderExtension"]["CreationTimeStamp"];
+
+	        var year = (int)timestamp["Year"].Properties[0];
+			var month = (int)timestamp["Month"].Properties[0];
+			var day = (int)timestamp["Day"].Properties[0];
+			var hour = (int)timestamp["Hour"].Properties[0];
+			var minute = (int)timestamp["Minute"].Properties[0];
+			var second = (int)timestamp["Second"].Properties[0];
+			var millisecond = (int)timestamp["Millisecond"].Properties[0];
+
+	        var mangledtime = $"{second:00}{month:00}{hour:00}{day:00}{(millisecond/10):00}{year:0000}{minute:00}";
+
+			Console.WriteLine(mangledtime);
+
+	        var mangledBytes = Encoding.ASCII.GetBytes(mangledtime);
+
+			if(mangledBytes.Length != 16)
+				throw new Exception();
+
+	        var str = (byte[])sourceId.Clone();
+			Encrypt(str, mangledBytes);
+			Encrypt(str, key);
+			Encrypt(str, mangledBytes);
+
+			PrintBytes(footer);
+			PrintBytes(str);*/
+
+
+			//Console.ReadLine();
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (output of Fbx.FbxBinaryWriter::.ctor() at Line 39).Fbx.FbxBinaryWriter.stream of type System.IO.BinaryWriter, Leaked resource (output of Fbx.FbxBinaryWriter::.ctor() at Line 39).Fbx.FbxBinaryWriter.memory of type System.IO.MemoryStream, Leaked resource (output of Fbx.FbxBinaryReader::.ctor() at Line 35).Fbx.FbxBinaryReader.stream of type System.IO.BinaryReader in method "Void Program.Main(String[])".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void Program.Main(String[])
+
+### File:
+Fbx/Program.cs
+
+### Key:
+Program.cs|Main|DOTNET_RESOURCE_LEAK
+
+### Hash:
+69e8c8694f3f8b3c8a01309ed06c58a6
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0339/instruction.md

@@ -0,0 +1,82 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** FbxWriter
+**Bug ID:** 2
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+
+namespace Fbx
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+			Console.WriteLine("Start");
+			var stream = new FileStream(args[0], FileMode.Open);
+	        int version;
+	        var node = (new FbxBinaryReader(stream)).Read(out version);
+			stream.Close();
+
+			stream = new FileStream(args[1], FileMode.Create);
+			(new FbxBinaryWriter(stream)).Write(node);
+			stream.Close();
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (output of Fbx.FbxBinaryWriter::.ctor() at Line 19).Fbx.FbxBinaryWriter.stream of type System.IO.BinaryWriter, Leaked resource (output of Fbx.FbxBinaryWriter::.ctor() at Line 19).Fbx.FbxBinaryWriter.memory of type System.IO.MemoryStream, Leaked resource (output of Fbx.FbxBinaryReader::.ctor() at Line 15).Fbx.FbxBinaryReader.stream of type System.IO.BinaryReader in method "Void Program.Main(String[])".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void Program.Main(String[])
+
+### File:
+Fbx/Program.cs
+
+### Key:
+Program.cs|Main|DOTNET_RESOURCE_LEAK
+
+### Hash:
+aa3888919cadbb2bc15a4a3e1608853e
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0352/instruction.md

@@ -0,0 +1,197 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** platyPS
+**Bug ID:** 5
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using Markdown.MAML.Model;
+
+namespace Markdown.MAML.Transformer
+{
+    public class ModelTransformer
+    {
+        private DocumentNode _root;
+        private IEnumerator<MarkdownNode> _rootEnumerator;
+
+        private const int COMMAND_NAME_HEADING_LEVEL = 2;
+        private const int COMMAND_ENTRIES_HEADING_LEVEL = 3;
+
+        private MarkdownNode GetCurrentNode()
+        {
+            return _rootEnumerator.Current;
+        }
+
+        private MarkdownNode GetNextNode()
+        {
+            if (_rootEnumerator.MoveNext())
+            {
+                return _rootEnumerator.Current;
+            }
+
+            return null;
+        }
+
+        private string GetSynopsis()
+        {
+            var node = GetNextNode();
+
+            // check for appropriate header
+            if (node.NodeType != MarkdownNodeType.Heading)
+            {
+                throw new HelpSchemaException("Expect ###SYNOPSIS");
+            }
+
+            var headingNode = node as HeadingNode;
+            if (headingNode.HeadingLevel != COMMAND_ENTRIES_HEADING_LEVEL)
+            {
+                throw new HelpSchemaException("Expect ###SYNOPSIS");
+            }
+
+            if (StringComparer.OrdinalIgnoreCase.Compare(headingNode.Text, "SYNOPSIS") != 0)
+            {
+                throw new HelpSchemaException("Expect ###SYNOPSIS");
+            }
+
+            node = GetNextNode();
+            if (node.NodeType != MarkdownNodeType.Paragraph)
+            {
+                throw new HelpSchemaException("Expect SYNOPSIS text");
+            }
+
+            return (node as ParagraphNode).Text;
+        }
+
+        private string GetDescription()
+        {
+            var node = GetNextNode();
+
+            if (node == null)
+            {
+                return null;
+            }
+
+            // check for appropriate header
+            if (node.NodeType != MarkdownNodeType.Heading)
+            {
+                throw new HelpSchemaException("Expect ###DESCRIPTION");
+            }
+
+            var headingNode = node as HeadingNode;
+            if (headingNode.HeadingLevel != COMMAND_ENTRIES_HEADING_LEVEL)
+            {
+                throw new HelpSchemaException("Expect ###SYNOPSIS");
+            }
+
+            if (StringComparer.OrdinalIgnoreCase.Compare(headingNode.Text, "SYNOPSIS") != 0)
+            {
+                throw new HelpSchemaException("Expect ###SYNOPSIS");
+            }
+
+            node = GetNextNode();
+            if (node.NodeType != MarkdownNodeType.Paragraph)
+            {
+                throw new HelpSchemaException("Expect SYNOPSIS text");
+            }
+
+            return ((node as ParagraphNode).Text);
+        }
+
+        public IEnumerable<MamlCommand> NodeModelToMamlModel(DocumentNode node)
+        {
+            _root = node;
+            if (_root.Children == null)
+            {
+                // HACK:
+                _rootEnumerator = (new LinkedList<MarkdownNode>()).GetEnumerator();
+            }
+            else
+            {
+                _rootEnumerator = _root.Children.GetEnumerator();
+            }
+
+            List<MamlCommand> commands = new List<MamlCommand>();
+            MarkdownNode markdownNode;
+            while ((markdownNode = GetNextNode()) != null)
+            {
+                if (markdownNode is HeadingNode)
+                {
+                    var headingNode = markdownNode as HeadingNode;
+                    switch (headingNode.HeadingLevel)
+                    {
+                        case COMMAND_NAME_HEADING_LEVEL:
+                            {
+                                MamlCommand command = new MamlCommand()
+                                {
+                                    Name = headingNode.Text,
+                                    Synopsis = GetSynopsis(),
+                                    Description = GetDescription()
+                                };
+                                commands.Add(command);
+                                break;
+                            }
+                        default: throw new HelpSchemaException("Booo, I don't know what is the heading level " + headingNode.HeadingLevel);
+                    }
+                }
+            }
+            return commands;
+        }
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `headingNode` last assigned on line 75 could be null and is dereferenced at line 76, column 13.
+
+### Severity:
+ERROR
+
+### Procedure:
+String ModelTransformer.GetDescription()
+
+### File:
+src/Markdown.MAML/Transformer/ModelTransformer.cs
+
+### Key:
+ModelTransformer.cs|GetDescription|NULL_DEREFERENCE
+
+### Node Key:
+90535029835413c6e5d1bdebbf52bdf9
+
+### Hash:
+294b0a0dd7f8cf7f922c909d0d662e2c
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0353/instruction.md

@@ -0,0 +1,626 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** neo
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+// Copyright (C) 2015-2022 The Neo Project.
+// 
+// The neo is free software distributed under the MIT software license, 
+// see the accompanying file LICENSE in the main directory of the
+// project or http://www.opensource.org/licenses/mit-license.php 
+// for more details.
+// 
+// Redistribution and use in source and binary forms with or without
+// modifications are permitted.
+
+#pragma warning disable IDE0051
+
+using Neo.Cryptography.ECC;
+using Neo.IO;
+using Neo.Persistence;
+using Neo.SmartContract.Iterators;
+using Neo.VM;
+using Neo.VM.Types;
+using System;
+using System.Buffers.Binary;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+
+namespace Neo.SmartContract.Native
+{
+    /// <summary>
+    /// Represents the NEO token in the NEO system.
+    /// </summary>
+    public sealed class NeoToken : FungibleToken<NeoToken.NeoAccountState>
+    {
+        public override string Symbol => "NEO";
+        public override byte Decimals => 0;
+
+        /// <summary>
+        /// Indicates the total amount of NEO.
+        /// </summary>
+        public BigInteger TotalAmount { get; }
+
+        /// <summary>
+        /// Indicates the effective voting turnout in NEO. The voted candidates will only be effective when the voting turnout exceeds this value.
+        /// </summary>
+        public const decimal EffectiveVoterTurnout = 0.2M;
+
+        private const byte Prefix_VotersCount = 1;
+        private const byte Prefix_Candidate = 33;
+        private const byte Prefix_Committee = 14;
+        private const byte Prefix_GasPerBlock = 29;
+        private const byte Prefix_RegisterPrice = 13;
+        private const byte Prefix_VoterRewardPerCommittee = 23;
+
+        private const byte NeoHolderRewardRatio = 10;
+        private const byte CommitteeRewardRatio = 10;
+        private const byte VoterRewardRatio = 80;
+
+        internal NeoToken()
+        {
+            this.TotalAmount = 100000000 * Factor;
+        }
+
+        public override BigInteger TotalSupply(DataCache snapshot)
+        {
+            return TotalAmount;
+        }
+
+        internal override void OnBalanceChanging(ApplicationEngine engine, UInt160 account, NeoAccountState state, BigInteger amount)
+        {
+            GasDistribution distribution = DistributeGas(engine, account, state);
+            if (distribution is not null)
+            {
+                var list = engine.CurrentContext.GetState<List<GasDistribution>>();
+                list.Add(distribution);
+            }
+            if (amount.IsZero) return;
+            if (state.VoteTo is null) return;
+            engine.Snapshot.GetAndChange(CreateStorageKey(Prefix_VotersCount)).Add(amount);
+            StorageKey key = CreateStorageKey(Prefix_Candidate).Add(state.VoteTo);
+            CandidateState candidate = engine.Snapshot.GetAndChange(key).GetInteroperable<CandidateState>();
+            candidate.Votes += amount;
+            CheckCandidate(engine.Snapshot, state.VoteTo, candidate);
+        }
+
+        private protected override async ContractTask PostTransfer(ApplicationEngine engine, UInt160 from, UInt160 to, BigInteger amount, StackItem data, bool callOnPayment)
+        {
+            await base.PostTransfer(engine, from, to, amount, data, callOnPayment);
+            var list = engine.CurrentContext.GetState<List<GasDistribution>>();
+            foreach (var distribution in list)
+                await GAS.Mint(engine, distribution.Account, distribution.Amount, callOnPayment);
+        }
+
+        private GasDistribution DistributeGas(ApplicationEngine engine, UInt160 account, NeoAccountState state)
+        {
+            // PersistingBlock is null when running under the debugger
+            if (engine.PersistingBlock is null) return null;
+
+            BigInteger gas = CalculateBonus(engine.Snapshot, state.VoteTo, state.Balance, state.BalanceHeight, engine.PersistingBlock.Index);
+            state.BalanceHeight = engine.PersistingBlock.Index;
+
+            if (gas == 0) return null;
+            return new GasDistribution
+            {
+                Account = account,
+                Amount = gas
+            };
+        }
+
+        private BigInteger CalculateBonus(DataCache snapshot, ECPoint vote, BigInteger value, uint start, uint end)
+        {
+            if (value.IsZero || start >= end) return BigInteger.Zero;
+            if (value.Sign < 0) throw new ArgumentOutOfRangeException(nameof(value));
+
+            BigInteger neoHolderReward = CalculateNeoHolderReward(snapshot, value, start, end);
+            if (vote is null) return neoHolderReward;
+
+            byte[] border = CreateStorageKey(Prefix_VoterRewardPerCommittee).Add(vote).ToArray();
+            byte[] keyStart = CreateStorageKey(Prefix_VoterRewardPerCommittee).Add(vote).AddBigEndian(start).ToArray();
+            (_, var item) = snapshot.FindRange(keyStart, border, SeekDirection.Backward).FirstOrDefault();
+            BigInteger startRewardPerNeo = item ?? BigInteger.Zero;
+
+            byte[] keyEnd = CreateStorageKey(Prefix_VoterRewardPerCommittee).Add(vote).AddBigEndian(end).ToArray();
+            (_, item) = snapshot.FindRange(keyEnd, border, SeekDirection.Backward).FirstOrDefault();
+            BigInteger endRewardPerNeo = item ?? BigInteger.Zero;
+
+            return neoHolderReward + value * (endRewardPerNeo - startRewardPerNeo) / 100000000L;
+        }
+
+        private BigInteger CalculateNeoHolderReward(DataCache snapshot, BigInteger value, uint start, uint end)
+        {
+            BigInteger sum = 0;
+            foreach (var (index, gasPerBlock) in GetSortedGasRecords(snapshot, end - 1))
+            {
+                if (index > start)
+                {
+                    sum += gasPerBlock * (end - index);
+                    end = index;
+                }
+                else
+                {
+                    sum += gasPerBlock * (end - start);
+                    break;
+                }
+            }
+            return value * sum * NeoHolderRewardRatio / 100 / TotalAmount;
+        }
+
+        private void CheckCandidate(DataCache snapshot, ECPoint pubkey, CandidateState candidate)
+        {
+            if (!candidate.Registered && candidate.Votes.IsZero)
+            {
+                foreach (var (rewardKey, _) in snapshot.Find(CreateStorageKey(Prefix_VoterRewardPerCommittee).Add(pubkey).ToArray()).ToArray())
+                    snapshot.Delete(rewardKey);
+                snapshot.Delete(CreateStorageKey(Prefix_Candidate).Add(pubkey));
+            }
+        }
+
+        /// <summary>
+        /// Determine whether the votes should be recounted at the specified height.
+        /// </summary>
+        /// <param name="height">The height to be checked.</param>
+        /// <param name="committeeMembersCount">The number of committee members in the system.</param>
+        /// <returns><see langword="true"/> if the votes should be recounted; otherwise, <see langword="false"/>.</returns>
+        public static bool ShouldRefreshCommittee(uint height, int committeeMembersCount) => height % committeeMembersCount == 0;
+
+        internal override ContractTask Initialize(ApplicationEngine engine)
+        {
+            var cachedCommittee = new CachedCommittee(engine.ProtocolSettings.StandbyCommittee.Select(p => (p, BigInteger.Zero)));
+            engine.Snapshot.Add(CreateStorageKey(Prefix_Committee), new StorageItem(cachedCommittee));
+            engine.Snapshot.Add(CreateStorageKey(Prefix_VotersCount), new StorageItem(System.Array.Empty<byte>()));
+            engine.Snapshot.Add(CreateStorageKey(Prefix_GasPerBlock).AddBigEndian(0u), new StorageItem(5 * GAS.Factor));
+            engine.Snapshot.Add(CreateStorageKey(Prefix_RegisterPrice), new StorageItem(1000 * GAS.Factor));
+            return Mint(engine, Contract.GetBFTAddress(engine.ProtocolSettings.StandbyValidators), TotalAmount, false);
+        }
+
+        internal override ContractTask OnPersist(ApplicationEngine engine)
+        {
+            // Set next committee
+            if (ShouldRefreshCommittee(engine.PersistingBlock.Index, engine.ProtocolSettings.CommitteeMembersCount))
+            {
+                StorageItem storageItem = engine.Snapshot.GetAndChange(CreateStorageKey(Prefix_Committee));
+                var cachedCommittee = storageItem.GetInteroperable<CachedCommittee>();
+                cachedCommittee.Clear();
+                cachedCommittee.AddRange(ComputeCommitteeMembers(engine.Snapshot, engine.ProtocolSettings));
+            }
+            return ContractTask.CompletedTask;
+        }
+
+        internal override async ContractTask PostPersist(ApplicationEngine engine)
+        {
+            // Distribute GAS for committee
+
+            int m = engine.ProtocolSettings.CommitteeMembersCount;
+            int n = engine.ProtocolSettings.ValidatorsCount;
+            int index = (int)(engine.PersistingBlock.Index % (uint)m);
+            var gasPerBlock = GetGasPerBlock(engine.Snapshot);
+            var committee = GetCommitteeFromCache(engine.Snapshot);
+            var pubkey = committee[index].PublicKey;
+            var account = Contract.CreateSignatureRedeemScript(pubkey).ToScriptHash();
+            await GAS.Mint(engine, account, gasPerBlock * CommitteeRewardRatio / 100, false);
+
+            // Record the cumulative reward of the voters of committee
+
+            if (ShouldRefreshCommittee(engine.PersistingBlock.Index, m))
+            {
+                BigInteger voterRewardOfEachCommittee = gasPerBlock * VoterRewardRatio * 100000000L * m / (m + n) / 100; // Zoom in 100000000 times, and the final calculation should be divided 100000000L
+                for (index = 0; index < committee.Count; index++)
+                {
+                    var member = committee[index];
+                    var factor = index < n ? 2 : 1; // The `voter` rewards of validator will double than other committee's
+                    if (member.Votes > 0)
+                    {
+                        BigInteger voterSumRewardPerNEO = factor * voterRewardOfEachCommittee / member.Votes;
+                        StorageKey voterRewardKey = CreateStorageKey(Prefix_VoterRewardPerCommittee).Add(member.PublicKey).AddBigEndian(engine.PersistingBlock.Index + 1);
+                        byte[] border = CreateStorageKey(Prefix_VoterRewardPerCommittee).Add(member.PublicKey).ToArray();
+                        (_, var item) = engine.Snapshot.FindRange(voterRewardKey.ToArray(), border, SeekDirection.Backward).FirstOrDefault();
+                        voterSumRewardPerNEO += (item ?? BigInteger.Zero);
+                        engine.Snapshot.Add(voterRewardKey, new StorageItem(voterSumRewardPerNEO));
+                    }
+                }
+            }
+        }
+
+        [ContractMethod(CpuFee = 1 << 15, RequiredCallFlags = CallFlags.States)]
+        private void SetGasPerBlock(ApplicationEngine engine, BigInteger gasPerBlock)
+        {
+            if (gasPerBlock < 0 || gasPerBlock > 10 * GAS.Factor)
+                throw new ArgumentOutOfRangeException(nameof(gasPerBlock));
+            if (!CheckCommittee(engine)) throw new InvalidOperationException();
+
+            uint index = engine.PersistingBlock.Index + 1;
+            StorageItem entry = engine.Snapshot.GetAndChange(CreateStorageKey(Prefix_GasPerBlock).AddBigEndian(index), () => new StorageItem(gasPerBlock));
+            entry.Set(gasPerBlock);
+        }
+
+        /// <summary>
+        /// Gets the amount of GAS generated in each block.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <returns>The amount of GAS generated.</returns>
+        [ContractMethod(CpuFee = 1 << 15, RequiredCallFlags = CallFlags.ReadStates)]
+        public BigInteger GetGasPerBlock(DataCache snapshot)
+        {
+            return GetSortedGasRecords(snapshot, Ledger.CurrentIndex(snapshot) + 1).First().GasPerBlock;
+        }
+
+        [ContractMethod(CpuFee = 1 << 15, RequiredCallFlags = CallFlags.States)]
+        private void SetRegisterPrice(ApplicationEngine engine, long registerPrice)
+        {
+            if (registerPrice <= 0)
+                throw new ArgumentOutOfRangeException(nameof(registerPrice));
+            if (!CheckCommittee(engine)) throw new InvalidOperationException();
+            engine.Snapshot.GetAndChange(CreateStorageKey(Prefix_RegisterPrice)).Set(registerPrice);
+        }
+
+        /// <summary>
+        /// Gets the fees to be paid to register as a candidate.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <returns>The amount of the fees.</returns>
+        [ContractMethod(CpuFee = 1 << 15, RequiredCallFlags = CallFlags.ReadStates)]
+        public long GetRegisterPrice(DataCache snapshot)
+        {
+            return (long)(BigInteger)snapshot[CreateStorageKey(Prefix_RegisterPrice)];
+        }
+
+        private IEnumerable<(uint Index, BigInteger GasPerBlock)> GetSortedGasRecords(DataCache snapshot, uint end)
+        {
+            byte[] key = CreateStorageKey(Prefix_GasPerBlock).AddBigEndian(end).ToArray();
+            byte[] boundary = CreateStorageKey(Prefix_GasPerBlock).ToArray();
+            return snapshot.FindRange(key, boundary, SeekDirection.Backward)
+                .Select(u => (BinaryPrimitives.ReadUInt32BigEndian(u.Key.Key.Span[^sizeof(uint)..]), (BigInteger)u.Value));
+        }
+
+        /// <summary>
+        /// Get the amount of unclaimed GAS in the specified account.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <param name="account">The account to check.</param>
+        /// <param name="end">The block index used when calculating GAS.</param>
+        /// <returns>The amount of unclaimed GAS.</returns>
+        [ContractMethod(CpuFee = 1 << 17, RequiredCallFlags = CallFlags.ReadStates)]
+        public BigInteger UnclaimedGas(DataCache snapshot, UInt160 account, uint end)
+        {
+            StorageItem storage = snapshot.TryGet(CreateStorageKey(Prefix_Account).Add(account));
+            if (storage is null) return BigInteger.Zero;
+            NeoAccountState state = storage.GetInteroperable<NeoAccountState>();
+            return CalculateBonus(snapshot, state.VoteTo, state.Balance, state.BalanceHeight, end);
+        }
+
+        [ContractMethod(RequiredCallFlags = CallFlags.States)]
+        private bool RegisterCandidate(ApplicationEngine engine, ECPoint pubkey)
+        {
+            if (!engine.CheckWitnessInternal(Contract.CreateSignatureRedeemScript(pubkey).ToScriptHash()))
+                return false;
+            engine.AddGas(GetRegisterPrice(engine.Snapshot));
+            StorageKey key = CreateStorageKey(Prefix_Candidate).Add(pubkey);
+            StorageItem item = engine.Snapshot.GetAndChange(key, () => new StorageItem(new CandidateState()));
+            CandidateState state = item.GetInteroperable<CandidateState>();
+            state.Registered = true;
+            return true;
+        }
+
+        [ContractMethod(CpuFee = 1 << 16, RequiredCallFlags = CallFlags.States)]
+        private bool UnregisterCandidate(ApplicationEngine engine, ECPoint pubkey)
+        {
+            if (!engine.CheckWitnessInternal(Contract.CreateSignatureRedeemScript(pubkey).ToScriptHash()))
+                return false;
+            StorageKey key = CreateStorageKey(Prefix_Candidate).Add(pubkey);
+            if (engine.Snapshot.TryGet(key) is null) return true;
+            StorageItem item = engine.Snapshot.GetAndChange(key);
+            CandidateState state = item.GetInteroperable<CandidateState>();
+            state.Registered = false;
+            CheckCandidate(engine.Snapshot, pubkey, state);
+            return true;
+        }
+
+        [ContractMethod(CpuFee = 1 << 16, RequiredCallFlags = CallFlags.States)]
+        private async ContractTask<bool> Vote(ApplicationEngine engine, UInt160 account, ECPoint voteTo)
+        {
+            if (!engine.CheckWitnessInternal(account)) return false;
+            NeoAccountState state_account = engine.Snapshot.GetAndChange(CreateStorageKey(Prefix_Account).Add(account))?.GetInteroperable<NeoAccountState>();
+            if (state_account is null) return false;
+            CandidateState validator_new = null;
+            if (voteTo != null)
+            {
+                validator_new = engine.Snapshot.GetAndChange(CreateStorageKey(Prefix_Candidate).Add(voteTo))?.GetInteroperable<CandidateState>();
+                if (validator_new is null) return false;
+                if (!validator_new.Registered) return false;
+            }
+            if (state_account.VoteTo is null ^ voteTo is null)
+            {
+                StorageItem item = engine.Snapshot.GetAndChange(CreateStorageKey(Prefix_VotersCount));
+                if (state_account.VoteTo is null)
+                    item.Add(state_account.Balance);
+                else
+                    item.Add(-state_account.Balance);
+            }
+            GasDistribution gasDistribution = DistributeGas(engine, account, state_account);
+            if (state_account.VoteTo != null)
+            {
+                StorageKey key = CreateStorageKey(Prefix_Candidate).Add(state_account.VoteTo);
+                StorageItem storage_validator = engine.Snapshot.GetAndChange(key);
+                CandidateState state_validator = storage_validator.GetInteroperable<CandidateState>();
+                state_validator.Votes -= state_account.Balance;
+                CheckCandidate(engine.Snapshot, state_account.VoteTo, state_validator);
+            }
+            state_account.VoteTo = voteTo;
+            if (validator_new != null)
+            {
+                validator_new.Votes += state_account.Balance;
+            }
+            if (gasDistribution is not null)
+                await GAS.Mint(engine, gasDistribution.Account, gasDistribution.Amount, true);
+            return true;
+        }
+
+        /// <summary>
+        /// Gets the first 256 registered candidates.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <returns>All the registered candidates.</returns>
+        [ContractMethod(CpuFee = 1 << 22, RequiredCallFlags = CallFlags.ReadStates)]
+        private (ECPoint PublicKey, BigInteger Votes)[] GetCandidates(DataCache snapshot)
+        {
+            return GetCandidatesInternal(snapshot)
+                .Select(p => (p.PublicKey, p.State.Votes))
+                .Take(256)
+                .ToArray();
+        }
+
+        /// <summary>
+        /// Gets the registered candidates iterator.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <returns>All the registered candidates.</returns>
+        [ContractMethod(CpuFee = 1 << 22, RequiredCallFlags = CallFlags.ReadStates)]
+        private IIterator GetAllCandidates(DataCache snapshot)
+        {
+            const FindOptions options = FindOptions.RemovePrefix | FindOptions.DeserializeValues | FindOptions.PickField1;
+            var enumerator = GetCandidatesInternal(snapshot)
+                .Select(p => (p.Key, p.Value))
+                .GetEnumerator();
+            return new StorageIterator(enumerator, 1, options);
+        }
+
+        internal IEnumerable<(StorageKey Key, StorageItem Value, ECPoint PublicKey, CandidateState State)> GetCandidatesInternal(DataCache snapshot)
+        {
+            byte[] prefix_key = CreateStorageKey(Prefix_Candidate).ToArray();
+            return snapshot.Find(prefix_key)
+                .Select(p => (p.Key, p.Value, PublicKey: p.Key.Key[1..].AsSerializable<ECPoint>(), State: p.Value.GetInteroperable<CandidateState>()))
+                .Where(p => p.State.Registered)
+                .Where(p => !Policy.IsBlocked(snapshot, Contract.CreateSignatureRedeemScript(p.PublicKey).ToScriptHash()));
+        }
+
+        /// <summary>
+        /// Gets votes from specific candidate.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <param name="pubKey">Specific public key</param>
+        /// <returns>Votes or -1 if it was not found.</returns>
+        [ContractMethod(CpuFee = 1 << 15, RequiredCallFlags = CallFlags.ReadStates)]
+        public BigInteger GetCandidateVote(DataCache snapshot, ECPoint pubKey)
+        {
+            StorageItem storage = snapshot.TryGet(CreateStorageKey(Prefix_Candidate).Add(pubKey));
+            CandidateState state = storage?.GetInteroperable<CandidateState>();
+            return state?.Registered == true ? state.Votes : -1;
+        }
+
+        /// <summary>
+        /// Gets all the members of the committee.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <returns>The public keys of the members.</returns>
+        [ContractMethod(CpuFee = 1 << 16, RequiredCallFlags = CallFlags.ReadStates)]
+        public ECPoint[] GetCommittee(DataCache snapshot)
+        {
+            return GetCommitteeFromCache(snapshot).Select(p => p.PublicKey).OrderBy(p => p).ToArray();
+        }
+
+        /// <summary>
+        /// Get account state.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <param name="account">account</param>
+        /// <returns>The state of the account.</returns>
+        [ContractMethod(CpuFee = 1 << 15, RequiredCallFlags = CallFlags.ReadStates)]
+        public NeoAccountState GetAccountState(DataCache snapshot, UInt160 account)
+        {
+            return snapshot.TryGet(CreateStorageKey(Prefix_Account).Add(account))?.GetInteroperable<NeoAccountState>();
+        }
+
+        /// <summary>
+        /// Gets the address of the committee.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <returns>The address of the committee.</returns>
+        public UInt160 GetCommitteeAddress(DataCache snapshot)
+        {
+            ECPoint[] committees = GetCommittee(snapshot);
+            return Contract.CreateMultiSigRedeemScript(committees.Length - (committees.Length - 1) / 2, committees).ToScriptHash();
+        }
+
+        private CachedCommittee GetCommitteeFromCache(DataCache snapshot)
+        {
+            return snapshot[CreateStorageKey(Prefix_Committee)].GetInteroperable<CachedCommittee>();
+        }
+
+        /// <summary>
+        /// Computes the validators of the next block.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <param name="settings">The <see cref="ProtocolSettings"/> used during computing.</param>
+        /// <returns>The public keys of the validators.</returns>
+        public ECPoint[] ComputeNextBlockValidators(DataCache snapshot, ProtocolSettings settings)
+        {
+            return ComputeCommitteeMembers(snapshot, settings).Select(p => p.PublicKey).Take(settings.ValidatorsCount).OrderBy(p => p).ToArray();
+        }
+
+        private IEnumerable<(ECPoint PublicKey, BigInteger Votes)> ComputeCommitteeMembers(DataCache snapshot, ProtocolSettings settings)
+        {
+            decimal votersCount = (decimal)(BigInteger)snapshot[CreateStorageKey(Prefix_VotersCount)];
+            decimal voterTurnout = votersCount / (decimal)TotalAmount;
+            var candidates = GetCandidatesInternal(snapshot)
+                .Select(p => (p.PublicKey, p.State.Votes))
+                .ToArray();
+            if (voterTurnout < EffectiveVoterTurnout || candidates.Length < settings.CommitteeMembersCount)
+                return settings.StandbyCommittee.Select(p => (p, candidates.FirstOrDefault(k => k.PublicKey.Equals(p)).Votes));
+            return candidates
+                .OrderByDescending(p => p.Votes)
+                .ThenBy(p => p.PublicKey)
+                .Take(settings.CommitteeMembersCount);
+        }
+
+        [ContractMethod(CpuFee = 1 << 16, RequiredCallFlags = CallFlags.ReadStates)]
+        private ECPoint[] GetNextBlockValidators(ApplicationEngine engine)
+        {
+            return GetNextBlockValidators(engine.Snapshot, engine.ProtocolSettings.ValidatorsCount);
+        }
+
+        /// <summary>
+        /// Gets the validators of the next block.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <param name="validatorsCount">The number of validators in the system.</param>
+        /// <returns>The public keys of the validators.</returns>
+        public ECPoint[] GetNextBlockValidators(DataCache snapshot, int validatorsCount)
+        {
+            return GetCommitteeFromCache(snapshot)
+                .Take(validatorsCount)
+                .Select(p => p.PublicKey)
+                .OrderBy(p => p)
+                .ToArray();
+        }
+
+        /// <summary>
+        /// Represents the account state of <see cref="NeoToken"/>.
+        /// </summary>
+        public class NeoAccountState : AccountState
+        {
+            /// <summary>
+            /// The height of the block where the balance changed last time.
+            /// </summary>
+            public uint BalanceHeight;
+
+            /// <summary>
+            /// The voting target of the account. This field can be <see langword="null"/>.
+            /// </summary>
+            public ECPoint VoteTo;
+
+            public override void FromStackItem(StackItem stackItem)
+            {
+                base.FromStackItem(stackItem);
+                Struct @struct = (Struct)stackItem;
+                BalanceHeight = (uint)@struct[1].GetInteger();
+                VoteTo = @struct[2].IsNull ? null : ECPoint.DecodePoint(@struct[2].GetSpan(), ECCurve.Secp256r1);
+            }
+
+            public override StackItem ToStackItem(ReferenceCounter referenceCounter)
+            {
+                Struct @struct = (Struct)base.ToStackItem(referenceCounter);
+                @struct.Add(BalanceHeight);
+                @struct.Add(VoteTo?.ToArray() ?? StackItem.Null);
+                return @struct;
+            }
+        }
+
+        internal class CandidateState : IInteroperable
+        {
+            public bool Registered = true;
+            public BigInteger Votes;
+
+            public void FromStackItem(StackItem stackItem)
+            {
+                Struct @struct = (Struct)stackItem;
+                Registered = @struct[0].GetBoolean();
+                Votes = @struct[1].GetInteger();
+            }
+
+            public StackItem ToStackItem(ReferenceCounter referenceCounter)
+            {
+                return new Struct(referenceCounter) { Registered, Votes };
+            }
+        }
+
+        internal class CachedCommittee : InteroperableList<(ECPoint PublicKey, BigInteger Votes)>
+        {
+            public CachedCommittee() { }
+            public CachedCommittee(IEnumerable<(ECPoint, BigInteger)> collection) => AddRange(collection);
+
+            protected override (ECPoint, BigInteger) ElementFromStackItem(StackItem item)
+            {
+                Struct @struct = (Struct)item;
+                return (ECPoint.DecodePoint(@struct[0].GetSpan(), ECCurve.Secp256r1), @struct[1].GetInteger());
+            }
+
+            protected override StackItem ElementToStackItem((ECPoint PublicKey, BigInteger Votes) element, ReferenceCounter referenceCounter)
+            {
+                return new Struct(referenceCounter) { element.PublicKey.ToArray(), element.Votes };
+            }
+        }
+
+        private record GasDistribution
+        {
+            public UInt160 Account { get; init; }
+            public BigInteger Amount { get; init; }
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (returned from Neo.SmartContract.KeyBuilder Neo.SmartContract.Native.NativeContract::CreateStorageKey(System.Byte) at Line 307).Neo.SmartContract.KeyBuilder.stream of type System.IO.MemoryStream in method "Boolean NeoToken.UnregisterCandidate(ApplicationEngine,ECPoint)".
+
+### Severity:
+ERROR
+
+### Procedure:
+Boolean NeoToken.UnregisterCandidate(ApplicationEngine,ECPoint)
+
+### File:
+src/neo/SmartContract/Native/NeoToken.cs
+
+### Key:
+NeoToken.cs|UnregisterCandidate|DOTNET_RESOURCE_LEAK
+
+### Hash:
+7b137895cac6c99f6467ce6040b3e9d6
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0354/instruction.md

@@ -0,0 +1,491 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** neo
+**Bug ID:** 2
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+// Copyright (C) 2015-2022 The Neo Project.
+// 
+// The neo is free software distributed under the MIT software license, 
+// see the accompanying file LICENSE in the main directory of the
+// project or http://www.opensource.org/licenses/mit-license.php 
+// for more details.
+// 
+// Redistribution and use in source and binary forms with or without
+// modifications are permitted.
+
+using Akka.Actor;
+using Neo.Cryptography;
+using Neo.IO.Caching;
+using Neo.Ledger;
+using Neo.Network.P2P.Capabilities;
+using Neo.Network.P2P.Payloads;
+using Neo.Persistence;
+using Neo.SmartContract.Native;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net;
+
+namespace Neo.Network.P2P
+{
+    public delegate bool MessageReceivedHandler(NeoSystem system, Message message);
+
+    partial class RemoteNode
+    {
+        private class Timer { }
+        private class PendingKnownHashesCollection : KeyedCollection<UInt256, (UInt256, DateTime)>
+        {
+            protected override UInt256 GetKeyForItem((UInt256, DateTime) item)
+            {
+                return item.Item1;
+            }
+        }
+
+        public static event MessageReceivedHandler MessageReceived
+        {
+            add => handlers.Add(value);
+            remove => handlers.Remove(value);
+        }
+
+        private static readonly List<MessageReceivedHandler> handlers = new();
+        private readonly PendingKnownHashesCollection pendingKnownHashes = new();
+        private readonly HashSetCache<UInt256> knownHashes;
+        private readonly HashSetCache<UInt256> sentHashes;
+        private bool verack = false;
+        private BloomFilter bloom_filter;
+
+        private static readonly TimeSpan TimerInterval = TimeSpan.FromSeconds(30);
+        private readonly ICancelable timer = Context.System.Scheduler.ScheduleTellRepeatedlyCancelable(TimerInterval, TimerInterval, Context.Self, new Timer(), ActorRefs.NoSender);
+
+        private void OnMessage(Message msg)
+        {
+            foreach (MessageReceivedHandler handler in handlers)
+                if (!handler(system, msg))
+                    return;
+            if (Version == null)
+            {
+                if (msg.Command != MessageCommand.Version)
+                    throw new ProtocolViolationException();
+                OnVersionMessageReceived((VersionPayload)msg.Payload);
+                return;
+            }
+            if (!verack)
+            {
+                if (msg.Command != MessageCommand.Verack)
+                    throw new ProtocolViolationException();
+                OnVerackMessageReceived();
+                return;
+            }
+            switch (msg.Command)
+            {
+                case MessageCommand.Addr:
+                    OnAddrMessageReceived((AddrPayload)msg.Payload);
+                    break;
+                case MessageCommand.Block:
+                case MessageCommand.Extensible:
+                    OnInventoryReceived((IInventory)msg.Payload);
+                    break;
+                case MessageCommand.FilterAdd:
+                    OnFilterAddMessageReceived((FilterAddPayload)msg.Payload);
+                    break;
+                case MessageCommand.FilterClear:
+                    OnFilterClearMessageReceived();
+                    break;
+                case MessageCommand.FilterLoad:
+                    OnFilterLoadMessageReceived((FilterLoadPayload)msg.Payload);
+                    break;
+                case MessageCommand.GetAddr:
+                    OnGetAddrMessageReceived();
+                    break;
+                case MessageCommand.GetBlocks:
+                    OnGetBlocksMessageReceived((GetBlocksPayload)msg.Payload);
+                    break;
+                case MessageCommand.GetBlockByIndex:
+                    OnGetBlockByIndexMessageReceived((GetBlockByIndexPayload)msg.Payload);
+                    break;
+                case MessageCommand.GetData:
+                    OnGetDataMessageReceived((InvPayload)msg.Payload);
+                    break;
+                case MessageCommand.GetHeaders:
+                    OnGetHeadersMessageReceived((GetBlockByIndexPayload)msg.Payload);
+                    break;
+                case MessageCommand.Headers:
+                    OnHeadersMessageReceived((HeadersPayload)msg.Payload);
+                    break;
+                case MessageCommand.Inv:
+                    OnInvMessageReceived((InvPayload)msg.Payload);
+                    break;
+                case MessageCommand.Mempool:
+                    OnMemPoolMessageReceived();
+                    break;
+                case MessageCommand.Ping:
+                    OnPingMessageReceived((PingPayload)msg.Payload);
+                    break;
+                case MessageCommand.Pong:
+                    OnPongMessageReceived((PingPayload)msg.Payload);
+                    break;
+                case MessageCommand.Transaction:
+                    if (msg.Payload.Size <= Transaction.MaxTransactionSize)
+                        OnInventoryReceived((Transaction)msg.Payload);
+                    break;
+                case MessageCommand.Verack:
+                case MessageCommand.Version:
+                    throw new ProtocolViolationException();
+                case MessageCommand.Alert:
+                case MessageCommand.MerkleBlock:
+                case MessageCommand.NotFound:
+                case MessageCommand.Reject:
+                default: break;
+            }
+        }
+
+        private void OnAddrMessageReceived(AddrPayload payload)
+        {
+            ref bool sent = ref sentCommands[(byte)MessageCommand.GetAddr];
+            if (!sent) return;
+            sent = false;
+            system.LocalNode.Tell(new Peer.Peers
+            {
+                EndPoints = payload.AddressList.Select(p => p.EndPoint).Where(p => p.Port > 0)
+            });
+        }
+
+        private void OnFilterAddMessageReceived(FilterAddPayload payload)
+        {
+            bloom_filter?.Add(payload.Data);
+        }
+
+        private void OnFilterClearMessageReceived()
+        {
+            bloom_filter = null;
+        }
+
+        private void OnFilterLoadMessageReceived(FilterLoadPayload payload)
+        {
+            bloom_filter = new BloomFilter(payload.Filter.Length * 8, payload.K, payload.Tweak, payload.Filter);
+        }
+
+        /// <summary>
+        /// Will be triggered when a MessageCommand.GetAddr message is received.
+        /// Randomly select nodes from the local RemoteNodes and tells to RemoteNode actors a MessageCommand.Addr message.
+        /// The message contains a list of networkAddresses from those selected random peers.
+        /// </summary>
+        private void OnGetAddrMessageReceived()
+        {
+            Random rand = new();
+            IEnumerable<RemoteNode> peers = localNode.RemoteNodes.Values
+                .Where(p => p.ListenerTcpPort > 0)
+                .GroupBy(p => p.Remote.Address, (k, g) => g.First())
+                .OrderBy(p => rand.Next())
+                .Take(AddrPayload.MaxCountToSend);
+            NetworkAddressWithTime[] networkAddresses = peers.Select(p => NetworkAddressWithTime.Create(p.Listener.Address, p.Version.Timestamp, p.Version.Capabilities)).ToArray();
+            if (networkAddresses.Length == 0) return;
+            EnqueueMessage(Message.Create(MessageCommand.Addr, AddrPayload.Create(networkAddresses)));
+        }
+
+        /// <summary>
+        /// Will be triggered when a MessageCommand.GetBlocks message is received.
+        /// Tell the specified number of blocks' hashes starting with the requested HashStart until payload.Count or MaxHashesCount
+        /// Responses are sent to RemoteNode actor as MessageCommand.Inv Message.
+        /// </summary>
+        /// <param name="payload">A GetBlocksPayload including start block Hash and number of blocks requested.</param>
+        private void OnGetBlocksMessageReceived(GetBlocksPayload payload)
+        {
+            // The default value of payload.Count is -1
+            int count = payload.Count < 0 || payload.Count > InvPayload.MaxHashesCount ? InvPayload.MaxHashesCount : payload.Count;
+            DataCache snapshot = system.StoreView;
+            UInt256 hash = payload.HashStart;
+            TrimmedBlock state = NativeContract.Ledger.GetTrimmedBlock(snapshot, hash);
+            if (state == null) return;
+            uint currentHeight = NativeContract.Ledger.CurrentIndex(snapshot);
+            List<UInt256> hashes = new();
+            for (uint i = 1; i <= count; i++)
+            {
+                uint index = state.Index + i;
+                if (index > currentHeight)
+                    break;
+                hash = NativeContract.Ledger.GetBlockHash(snapshot, index);
+                if (hash == null) break;
+                hashes.Add(hash);
+            }
+            if (hashes.Count == 0) return;
+            EnqueueMessage(Message.Create(MessageCommand.Inv, InvPayload.Create(InventoryType.Block, hashes.ToArray())));
+        }
+
+        private void OnGetBlockByIndexMessageReceived(GetBlockByIndexPayload payload)
+        {
+            uint count = payload.Count == -1 ? InvPayload.MaxHashesCount : Math.Min((uint)payload.Count, InvPayload.MaxHashesCount);
+            for (uint i = payload.IndexStart, max = payload.IndexStart + count; i < max; i++)
+            {
+                Block block = NativeContract.Ledger.GetBlock(system.StoreView, i);
+                if (block == null)
+                    break;
+
+                if (bloom_filter == null)
+                {
+                    EnqueueMessage(Message.Create(MessageCommand.Block, block));
+                }
+                else
+                {
+                    BitArray flags = new(block.Transactions.Select(p => bloom_filter.Test(p)).ToArray());
+                    EnqueueMessage(Message.Create(MessageCommand.MerkleBlock, MerkleBlockPayload.Create(block, flags)));
+                }
+            }
+        }
+
+        /// <summary>
+        /// Will be triggered when a MessageCommand.GetData message is received.
+        /// The payload includes an array of hash values.
+        /// For different payload.Type (Tx, Block, Consensus),
+        /// get the corresponding (Txs, Blocks, Consensus) and tell them to RemoteNode actor.
+        /// </summary>
+        /// <param name="payload">The payload containing the requested information.</param>
+        private void OnGetDataMessageReceived(InvPayload payload)
+        {
+            var notFound = new List<UInt256>();
+            foreach (UInt256 hash in payload.Hashes.Where(p => sentHashes.Add(p)))
+            {
+                switch (payload.Type)
+                {
+                    case InventoryType.TX:
+                        if (system.MemPool.TryGetValue(hash, out Transaction tx))
+                            EnqueueMessage(Message.Create(MessageCommand.Transaction, tx));
+                        else
+                            notFound.Add(hash);
+                        break;
+                    case InventoryType.Block:
+                        Block block = NativeContract.Ledger.GetBlock(system.StoreView, hash);
+                        if (block != null)
+                        {
+                            if (bloom_filter == null)
+                            {
+                                EnqueueMessage(Message.Create(MessageCommand.Block, block));
+                            }
+                            else
+                            {
+                                BitArray flags = new(block.Transactions.Select(p => bloom_filter.Test(p)).ToArray());
+                                EnqueueMessage(Message.Create(MessageCommand.MerkleBlock, MerkleBlockPayload.Create(block, flags)));
+                            }
+                        }
+                        else
+                        {
+                            notFound.Add(hash);
+                        }
+                        break;
+                    default:
+                        if (system.RelayCache.TryGet(hash, out IInventory inventory))
+                            EnqueueMessage(Message.Create((MessageCommand)payload.Type, inventory));
+                        break;
+                }
+            }
+
+            if (notFound.Count > 0)
+            {
+                foreach (InvPayload entry in InvPayload.CreateGroup(payload.Type, notFound.ToArray()))
+                    EnqueueMessage(Message.Create(MessageCommand.NotFound, entry));
+            }
+        }
+
+        /// <summary>
+        /// Will be triggered when a MessageCommand.GetHeaders message is received.
+        /// Tell the specified number of blocks' headers starting with the requested IndexStart to RemoteNode actor.
+        /// A limit set by HeadersPayload.MaxHeadersCount is also applied to the number of requested Headers, namely payload.Count.
+        /// </summary>
+        /// <param name="payload">A GetBlockByIndexPayload including start block index and number of blocks' headers requested.</param>
+        private void OnGetHeadersMessageReceived(GetBlockByIndexPayload payload)
+        {
+            DataCache snapshot = system.StoreView;
+            if (payload.IndexStart > NativeContract.Ledger.CurrentIndex(snapshot)) return;
+            List<Header> headers = new();
+            uint count = payload.Count == -1 ? HeadersPayload.MaxHeadersCount : (uint)payload.Count;
+            for (uint i = 0; i < count; i++)
+            {
+                var header = NativeContract.Ledger.GetHeader(snapshot, payload.IndexStart + i);
+                if (header == null) break;
+                headers.Add(header);
+            }
+            if (headers.Count == 0) return;
+            EnqueueMessage(Message.Create(MessageCommand.Headers, HeadersPayload.Create(headers.ToArray())));
+        }
+
+        private void OnHeadersMessageReceived(HeadersPayload payload)
+        {
+            UpdateLastBlockIndex(payload.Headers[^1].Index);
+            system.Blockchain.Tell(payload.Headers);
+        }
+
+        private void OnInventoryReceived(IInventory inventory)
+        {
+            if (!knownHashes.Add(inventory.Hash)) return;
+            pendingKnownHashes.Remove(inventory.Hash);
+            system.TaskManager.Tell(inventory);
+            switch (inventory)
+            {
+                case Transaction transaction:
+                    if (!system.ContainsTransaction(transaction.Hash))
+                        system.TxRouter.Tell(new TransactionRouter.Preverify(transaction, true));
+                    break;
+                case Block block:
+                    UpdateLastBlockIndex(block.Index);
+                    if (block.Index > NativeContract.Ledger.CurrentIndex(system.StoreView) + InvPayload.MaxHashesCount) return;
+                    system.Blockchain.Tell(inventory);
+                    break;
+                default:
+                    system.Blockchain.Tell(inventory);
+                    break;
+            }
+        }
+
+        private void OnInvMessageReceived(InvPayload payload)
+        {
+            UInt256[] hashes = payload.Hashes.Where(p => !pendingKnownHashes.Contains(p) && !knownHashes.Contains(p) && !sentHashes.Contains(p)).ToArray();
+            if (hashes.Length == 0) return;
+            switch (payload.Type)
+            {
+                case InventoryType.Block:
+                    {
+                        DataCache snapshot = system.StoreView;
+                        hashes = hashes.Where(p => !NativeContract.Ledger.ContainsBlock(snapshot, p)).ToArray();
+                    }
+                    break;
+                case InventoryType.TX:
+                    {
+                        DataCache snapshot = system.StoreView;
+                        hashes = hashes.Where(p => !NativeContract.Ledger.ContainsTransaction(snapshot, p)).ToArray();
+                    }
+                    break;
+            }
+            if (hashes.Length == 0) return;
+            foreach (UInt256 hash in hashes)
+                pendingKnownHashes.Add((hash, TimeProvider.Current.UtcNow));
+            system.TaskManager.Tell(new TaskManager.NewTasks { Payload = InvPayload.Create(payload.Type, hashes) });
+        }
+
+        private void OnMemPoolMessageReceived()
+        {
+            foreach (InvPayload payload in InvPayload.CreateGroup(InventoryType.TX, system.MemPool.GetVerifiedTransactions().Select(p => p.Hash).ToArray()))
+                EnqueueMessage(Message.Create(MessageCommand.Inv, payload));
+        }
+
+        private void OnPingMessageReceived(PingPayload payload)
+        {
+            UpdateLastBlockIndex(payload.LastBlockIndex);
+            EnqueueMessage(Message.Create(MessageCommand.Pong, PingPayload.Create(NativeContract.Ledger.CurrentIndex(system.StoreView), payload.Nonce)));
+        }
+
+        private void OnPongMessageReceived(PingPayload payload)
+        {
+            UpdateLastBlockIndex(payload.LastBlockIndex);
+        }
+
+        private void OnVerackMessageReceived()
+        {
+            verack = true;
+            system.TaskManager.Tell(new TaskManager.Register { Version = Version });
+            CheckMessageQueue();
+        }
+
+        private void OnVersionMessageReceived(VersionPayload payload)
+        {
+            Version = payload;
+            foreach (NodeCapability capability in payload.Capabilities)
+            {
+                switch (capability)
+                {
+                    case FullNodeCapability fullNodeCapability:
+                        IsFullNode = true;
+                        LastBlockIndex = fullNodeCapability.StartHeight;
+                        break;
+                    case ServerCapability serverCapability:
+                        if (serverCapability.Type == NodeCapabilityType.TcpServer)
+                            ListenerTcpPort = serverCapability.Port;
+                        break;
+                }
+            }
+            if (!localNode.AllowNewConnection(Self, this))
+            {
+                Disconnect(true);
+                return;
+            }
+            SendMessage(Message.Create(MessageCommand.Verack));
+        }
+
+        private void OnTimer()
+        {
+            DateTime oneMinuteAgo = TimeProvider.Current.UtcNow.AddMinutes(-1);
+            while (pendingKnownHashes.Count > 0)
+            {
+                var (_, time) = pendingKnownHashes[0];
+                if (oneMinuteAgo <= time) break;
+                pendingKnownHashes.RemoveAt(0);
+            }
+            if (oneMinuteAgo > lastSent)
+                EnqueueMessage(Message.Create(MessageCommand.Ping, PingPayload.Create(NativeContract.Ledger.CurrentIndex(system.StoreView))));
+        }
+
+        private void UpdateLastBlockIndex(uint lastBlockIndex)
+        {
+            if (lastBlockIndex > LastBlockIndex)
+            {
+                LastBlockIndex = lastBlockIndex;
+                system.TaskManager.Tell(new TaskManager.Update { LastBlockIndex = LastBlockIndex });
+            }
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (returned from Neo.Persistence.DataCache Neo.NeoSystem::get_StoreView() at Line 420) of type Neo.Persistence.SnapshotCache in method "Void RemoteNode.OnTimer()".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void RemoteNode.OnTimer()
+
+### File:
+src/Neo/Network/P2P/RemoteNode.ProtocolHandler.cs
+
+### Key:
+RemoteNode.ProtocolHandler.cs|OnTimer|DOTNET_RESOURCE_LEAK
+
+### Hash:
+fcee7327e2b8c246be727213b4cb307d
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0355/instruction.md

@@ -0,0 +1,128 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** StackExchange.Metrics
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Diagnostics;
+using System.Threading;
+using BosunReporter;
+
+namespace Scratch
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            Debug.Listeners.Add(new TextWriterTraceListener(Console.Out));
+            Debug.AutoFlush = true;
+
+            var options = new BosunReporterOptions()
+            {
+                MetricsNamePrefix = "bret.",
+                BosunUrl = new Uri("http://192.168.59.104:8070/"),
+                ThrowOnPostFail = true,
+                ReportingInterval = 5
+            };
+            var reporter = new BosunReporter.BosunReporter(options);
+            var counter = reporter.GetMetric<TestCounter>("my_counter");
+            counter.Increment();
+            counter.Increment();
+
+            var gauge = reporter.GetMetric<TestAggregateGauge>("my_gauge");
+            if (gauge != reporter.GetMetric<TestAggregateGauge>("my_gauge"))
+                throw new Exception("WAT?");
+
+            //reporter.GetMetric<TestAggregateGauge>("my_gauge_95"); // <- should throw an exception
+
+            var rand = new Random();
+            while (true)
+            {
+                gauge.Record(rand.NextDouble());
+                Thread.Sleep(5);
+            }
+        }
+    }
+
+    [GaugeAggregator(AggregateMode.Average)]
+    [GaugeAggregator(AggregateMode.Max)]
+    [GaugeAggregator(AggregateMode.Min)]
+    [GaugeAggregator(AggregateMode.Median)]
+    [GaugeAggregator(AggregateMode.Percentile, 0.95)]
+    [GaugeAggregator(AggregateMode.Percentile, 0.25)]
+    public class TestAggregateGauge : BosunAggregateGauge
+    {
+        [BosunTag("host")]
+        public readonly string Host;
+
+        public TestAggregateGauge()
+        {
+            Host = "bret-host";
+        }
+    }
+
+    public class TestCounter : BosunCounter
+    {
+        [BosunTag("host")]
+        public readonly string Host;
+
+        public TestCounter()
+        {
+            Host = "bret-host";
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (output of System.Diagnostics.TextWriterTraceListener::.ctor() at Line 12) of type System.Diagnostics.TextWriterTraceListener in method "Void Program.Main(String[])".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void Program.Main(String[])
+
+### File:
+Scratch/Program.cs
+
+### Key:
+Program.cs|Main|DOTNET_RESOURCE_LEAK
+
+### Hash:
+8e58a18cae1bf1f6099a7800e0abb700
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0362/instruction.md

@@ -0,0 +1,429 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** kafka-streams-dotnet
+**Bug ID:** 10
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using Confluent.Kafka;
+using NUnit.Framework;
+using Streamiz.Kafka.Net.Errors;
+using Streamiz.Kafka.Net.Mock;
+using Streamiz.Kafka.Net.Mock.Kafka;
+using Streamiz.Kafka.Net.Mock.Sync;
+using Streamiz.Kafka.Net.Processors;
+using Streamiz.Kafka.Net.Processors.Internal;
+using Streamiz.Kafka.Net.SerDes;
+using Streamiz.Kafka.Net.State.Internal;
+using Streamiz.Kafka.Net.Table;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using Streamiz.Kafka.Net.Metrics;
+using ThreadState = Streamiz.Kafka.Net.Processors.ThreadState;
+
+namespace Streamiz.Kafka.Net.Tests.Private
+{
+    public class StreamThreadTests
+    {
+        #region State Test
+
+        [Test]
+        public void TestCreatedState()
+        {
+            var state = ThreadState.CREATED;
+            Assert.AreEqual(0, state.Ordinal);
+            Assert.AreEqual("CREATED", state.Name);
+            Assert.AreEqual(new HashSet<int> {1, 5}, state.Transitions);
+            Assert.IsFalse(state.IsRunning());
+            Assert.IsFalse(state.IsValidTransition(ThreadState.DEAD));
+            Assert.IsTrue(state.IsValidTransition(ThreadState.STARTING));
+        }
+
+        [Test]
+        public void TestStartingState()
+        {
+            var state = ThreadState.STARTING;
+            Assert.AreEqual(1, state.Ordinal);
+            Assert.AreEqual("STARTING", state.Name);
+            Assert.AreEqual(new HashSet<int> {2, 3, 5}, state.Transitions);
+            Assert.IsTrue(state.IsRunning());
+            Assert.IsFalse(state.IsValidTransition(ThreadState.CREATED));
+            Assert.IsTrue(state.IsValidTransition(ThreadState.PARTITIONS_ASSIGNED));
+        }
+
+        [Test]
+        public void TestPartitionsRevokedState()
+        {
+            var state = ThreadState.PARTITIONS_REVOKED;
+            Assert.AreEqual(2, state.Ordinal);
+            Assert.AreEqual("PARTITIONS_REVOKED", state.Name);
+            Assert.AreEqual(new HashSet<int> {2, 3, 5}, state.Transitions);
+            Assert.IsTrue(state.IsRunning());
+            Assert.IsFalse(state.IsValidTransition(ThreadState.DEAD));
+            Assert.IsTrue(state.IsValidTransition(ThreadState.PARTITIONS_ASSIGNED));
+        }
+
+        [Test]
+        public void TestPartitionsAssignedState()
+        {
+            var state = ThreadState.PARTITIONS_ASSIGNED;
+            Assert.AreEqual(3, state.Ordinal);
+            Assert.AreEqual("PARTITIONS_ASSIGNED", state.Name);
+            Assert.AreEqual(new HashSet<int> {2, 3, 4, 5}, state.Transitions);
+            Assert.IsTrue(state.IsRunning());
+            Assert.IsFalse(state.IsValidTransition(ThreadState.DEAD));
+            Assert.IsTrue(state.IsValidTransition(ThreadState.RUNNING));
+        }
+
+        [Test]
+        public void TestRunningState()
+        {
+            var state = ThreadState.RUNNING;
+            Assert.AreEqual(4, state.Ordinal);
+            Assert.AreEqual("RUNNING", state.Name);
+            Assert.AreEqual(new HashSet<int> {2, 3, 4, 5}, state.Transitions);
+            Assert.IsTrue(state.IsRunning());
+            Assert.IsFalse(state.IsValidTransition(ThreadState.CREATED));
+            Assert.IsTrue(state.IsValidTransition(ThreadState.PARTITIONS_ASSIGNED));
+        }
+
+        [Test]
+        public void TestPendingShutdownState()
+        {
+            var state = ThreadState.PENDING_SHUTDOWN;
+            Assert.AreEqual(5, state.Ordinal);
+            Assert.AreEqual("PENDING_SHUTDOWN", state.Name);
+            Assert.AreEqual(new HashSet<int> {6}, state.Transitions);
+            Assert.IsFalse(state.IsRunning());
+            Assert.IsFalse(state.IsValidTransition(ThreadState.CREATED));
+            Assert.IsTrue(state.IsValidTransition(ThreadState.DEAD));
+        }
+
+        [Test]
+        public void TestDeadState()
+        {
+            var state = ThreadState.DEAD;
+            Assert.AreEqual(6, state.Ordinal);
+            Assert.AreEqual("DEAD", state.Name);
+            Assert.AreEqual(new HashSet<int> { }, state.Transitions);
+            Assert.IsFalse(state.IsRunning());
+            Assert.IsFalse(state.IsValidTransition(ThreadState.CREATED));
+        }
+
+        #endregion
+
+        #region StreamThread Id
+
+        [Test]
+        public void GetConsumerClientIdTest()
+        {
+            var result = StreamThread.GetConsumerClientId("thread-client");
+            Assert.AreEqual($"thread-client-consumer", result);
+        }
+
+        [Test]
+        public void GetRestoreConsumerClientIdTest()
+        {
+            var result = StreamThread.GetRestoreConsumerClientId("thread-client");
+            Assert.AreEqual($"thread-client-restore-consumer", result);
+        }
+
+        [Test]
+        public void GetSharedAdminClientIdTest()
+        {
+            var result = StreamThread.GetSharedAdminClientId("thread-client");
+            Assert.AreEqual($"thread-client-admin", result);
+        }
+
+        [Test]
+        public void GetTaskProducerClientIdTest()
+        {
+            var taskId = new TaskId {Id = 0, Partition = 0};
+            var result = StreamThread.GetTaskProducerClientId("thread-client", taskId);
+            Assert.AreEqual($"thread-client-0-0-producer", result);
+        }
+
+        [Test]
+        public void GetThreadProducerClientIdTest()
+        {
+            var result = StreamThread.GetThreadProducerClientId("thread-client");
+            Assert.AreEqual($"thread-client-producer", result);
+        }
+
+        #endregion
+
+        #region StreamThread Workflow
+
+        [Test]
+        public void CreateStreamThread()
+        {
+            var config = new StreamConfig<StringSerDes, StringSerDes>();
+            config.ApplicationId = "test";
+
+            var builder = new StreamBuilder();
+            builder.Stream<string, string>("topic").To("topic2");
+
+            var topo = builder.Build();
+
+            var supplier = new SyncKafkaSupplier();
+            var thread = StreamThread.Create(
+                "thread-0", "c0",
+                topo.Builder, new StreamMetricsRegistry(), config,
+                supplier, supplier.GetAdmin(config.ToAdminConfig("admin")),
+                0) as StreamThread;
+
+            Assert.AreEqual("thread-0", thread.Name);
+        }
+
+        [Test]
+        public void StreamThreadNormalWorkflow()
+        {
+            List<ThreadState> allStates = new List<ThreadState>();
+            var expectedStates = new List<ThreadState>
+            {
+                ThreadState.CREATED,
+                ThreadState.STARTING,
+                ThreadState.PARTITIONS_ASSIGNED,
+                ThreadState.RUNNING,
+                ThreadState.PENDING_SHUTDOWN,
+                ThreadState.DEAD
+            };
+
+            var source = new System.Threading.CancellationTokenSource();
+            var config = new StreamConfig<StringSerDes, StringSerDes>();
+            config.ApplicationId = "test";
+            config.Guarantee = ProcessingGuarantee.AT_LEAST_ONCE;
+            config.PollMs = 1;
+
+            var serdes = new StringSerDes();
+            var builder = new StreamBuilder();
+            builder.Stream<string, string>("topic").To("topic2");
+
+            var topo = builder.Build();
+
+            var supplier = new SyncKafkaSupplier();
+            var producer = supplier.GetProducer(config.ToProducerConfig());
+            var consumer = supplier.GetConsumer(config.ToConsumerConfig("test-consum"), null);
+            consumer.Subscribe("topic2");
+            var thread = StreamThread.Create(
+                "thread-0", "c0",
+                topo.Builder, new StreamMetricsRegistry(), config,
+                supplier, supplier.GetAdmin(config.ToAdminConfig("admin")),
+                0) as StreamThread;
+            allStates.Add(thread.State);
+            thread.StateChanged += (t, o, n) =>
+            {
+                Assert.IsInstanceOf<ThreadState>(n);
+                allStates.Add(n as ThreadState);
+            };
+
+            thread.Start(source.Token);
+            producer.Produce("topic", new Confluent.Kafka.Message<byte[], byte[]>
+            {
+                Key = serdes.Serialize("key1", new SerializationContext()),
+                Value = serdes.Serialize("coucou", new SerializationContext())
+            });
+            //WAIT STREAMTHREAD PROCESS MESSAGE
+            System.Threading.Thread.Sleep(100);
+            var message = consumer.Consume(100);
+
+            source.Cancel();
+            thread.Dispose();
+
+            Assert.AreEqual("key1", serdes.Deserialize(message.Message.Key, new SerializationContext()));
+            Assert.AreEqual("coucou", serdes.Deserialize(message.Message.Value, new SerializationContext()));
+            Assert.AreEqual(expectedStates, allStates);
+        }
+
+        [Test]
+        public void StreamThreadCommitIntervalWorkflow()
+        {
+            var source = new System.Threading.CancellationTokenSource();
+            var config = new StreamConfig<StringSerDes, StringSerDes>();
+            config.ApplicationId = "test";
+            config.Guarantee = ProcessingGuarantee.AT_LEAST_ONCE;
+            config.PollMs = 1;
+            config.CommitIntervalMs = 1;
+
+            var serdes = new StringSerDes();
+            var builder = new StreamBuilder();
+            builder.Stream<string, string>("topic").To("topic2");
+
+            var topo = builder.Build();
+
+            var supplier = new SyncKafkaSupplier();
+            var producer = supplier.GetProducer(config.ToProducerConfig());
+            var consumer = supplier.GetConsumer(config.ToConsumerConfig("test-consum"), null);
+            consumer.Subscribe("topic2");
+            var thread = StreamThread.Create(
+                "thread-0", "c0",
+                topo.Builder, new StreamMetricsRegistry(), config,
+                supplier, supplier.GetAdmin(config.ToAdminConfig("admin")),
+                0) as StreamThread;
+
+            thread.Start(source.Token);
+            producer.Produce("topic", new Confluent.Kafka.Message<byte[], byte[]>
+            {
+                Key = serdes.Serialize("key1", new SerializationContext()),
+                Value = serdes.Serialize("coucou", new SerializationContext())
+            });
+            //WAIT STREAMTHREAD PROCESS MESSAGE
+            System.Threading.Thread.Sleep(100);
+            var message = consumer.Consume(100);
+
+            Assert.AreEqual("key1", serdes.Deserialize(message.Message.Key, new SerializationContext()));
+            Assert.AreEqual("coucou", serdes.Deserialize(message.Message.Value, new SerializationContext()));
+
+            var offsets = thread.GetCommittedOffsets(new List<TopicPartition> {new TopicPartition("topic", 0)},
+                TimeSpan.FromSeconds(10)).ToList();
+            Assert.AreEqual(1, offsets.Count);
+            Assert.AreEqual(1, offsets[0].Offset.Value);
+            Assert.AreEqual(0, offsets[0].TopicPartition.Partition.Value);
+            Assert.AreEqual("topic", offsets[0].Topic);
+
+            source.Cancel();
+            thread.Dispose();
+        }
+
+        #endregion
+
+        #region StreamThread SetState
+
+        [Test]
+        public void CheckIncorrectStateTransition()
+        {
+            var config = new StreamConfig<StringSerDes, StringSerDes>();
+            config.ApplicationId = "test";
+
+            var builder = new StreamBuilder();
+            builder.Stream<string, string>("topic").To("topic2");
+
+            var topo = builder.Build();
+
+            var supplier = new SyncKafkaSupplier();
+            var thread = StreamThread.Create(
+                "thread-0", "c0",
+                topo.Builder, new StreamMetricsRegistry(), config,
+                supplier, supplier.GetAdmin(config.ToAdminConfig("admin")),
+                0) as StreamThread;
+
+            // MUST BE IN CREATED STATE
+            Assert.AreEqual(ThreadState.CREATED, thread.State);
+            Assert.Throws<StreamsException>(() => thread.SetState(ThreadState.DEAD));
+        }
+
+        [Test]
+        public void CheckSetStateWithoutStateChangedHandler()
+        {
+            var config = new StreamConfig<StringSerDes, StringSerDes>();
+            config.ApplicationId = "test";
+
+            var builder = new StreamBuilder();
+            builder.Stream<string, string>("topic").To("topic2");
+
+            var topo = builder.Build();
+
+            var supplier = new SyncKafkaSupplier();
+            var thread = StreamThread.Create(
+                "thread-0", "c0",
+                topo.Builder, new StreamMetricsRegistry(), config,
+                supplier, supplier.GetAdmin(config.ToAdminConfig("admin")),
+                0) as StreamThread;
+
+            // MUST BE IN CREATED STATE
+            Assert.AreEqual(ThreadState.CREATED, thread.State);
+            thread.SetState(ThreadState.STARTING);
+            Assert.AreEqual(ThreadState.STARTING, thread.State);
+        }
+
+
+        [Test]
+        public void CheckSetStateStartingWithDeadThread()
+        {
+            var config = new StreamConfig<StringSerDes, StringSerDes>();
+            config.ApplicationId = "test";
+
+            var builder = new StreamBuilder();
+            builder.Stream<string, string>("topic").To("topic2");
+
+            var topo = builder.Build();
+
+            var supplier = new SyncKafkaSupplier();
+            var thread = StreamThread.Create(
+                "thread-0", "c0",
+                topo.Builder, new StreamMetricsRegistry(), config,
+                supplier, supplier.GetAdmin(config.ToAdminConfig("admin")),
+                0) as StreamThread;
+
+            // MUST BE IN CREATED STATE
+            Assert.AreEqual(ThreadState.CREATED, thread.State);
+            thread.SetState(ThreadState.STARTING);
+            thread.SetState(ThreadState.PENDING_SHUTDOWN);
+            thread.SetState(ThreadState.DEAD);
+            thread.Start(default);
+            Assert.IsFalse(thread.IsRunning);
+        }
+
+        #endregion
+
+        #region StreamThread Commit Requested TODO
+
+        // TODO:
+
+        #endregion
+    }
+}
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource supplier.Streamiz.Kafka.Net.Mock.Sync.SyncKafkaSupplier.producer of type Streamiz.Kafka.Net.Mock.Sync.SyncProducer, Leaked resource supplier.Streamiz.Kafka.Net.Mock.Sync.SyncKafkaSupplier.admin of type Streamiz.Kafka.Net.Mock.Sync.SyncAdminClient, Leaked resource (returned from Streamiz.Kafka.Net.Processors.IThread Streamiz.Kafka.Net.Processors.StreamThread::Create(System.String,System.String,Streamiz.Kafka.Net.Processors.Internal.InternalTopologyBuilder,Streamiz.Kafka.Net.Metrics.StreamMetricsRegistry,Streamiz.Kafka.Net.IStreamConfig,Streamiz.Kafka.Net.Kafka.IKafkaSupplier,Confluent.Kafka.IAdminClient,System.Int32) at Line 165) of type Streamiz.Kafka.Net.Processors.StreamThread in method "Void StreamThreadTests.CreateStreamThread()".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void StreamThreadTests.CreateStreamThread()
+
+### File:
+test/Streamiz.Kafka.Net.Tests/Private/StreamThreadTests.cs
+
+### Key:
+StreamThreadTests.cs|CreateStreamThread|DOTNET_RESOURCE_LEAK
+
+### Hash:
+ecacf16cb461c62650234d878a6a2cf2
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0363/instruction.md

@@ -0,0 +1,295 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** kafka-streams-dotnet
+**Bug ID:** 8
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using Confluent.Kafka;
+using Moq;
+using NUnit.Framework;
+using Streamiz.Kafka.Net.Errors;
+using Streamiz.Kafka.Net.Processors;
+using Streamiz.Kafka.Net.Processors.Internal;
+using Streamiz.Kafka.Net.State;
+using Streamiz.Kafka.Net.Stream.Internal;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Streamiz.Kafka.Net.Mock.Sync;
+
+namespace Streamiz.Kafka.Net.Tests.Private
+{
+    public class GlobalStateManagerTests
+    {
+        private GlobalStateManager stateManager;
+        private Mock<IKeyValueStore<object, object>> kvStoreMock;
+        private Mock<IKeyValueStore<object, object>> otherStoreMock;
+        private Mock<IAdminClient> adminClientMock;
+        private ProcessorTopology topology;
+        private Mock<IStreamConfig> streamConfigMock;
+        private ProcessorContext context;
+
+        private readonly string kvStoreName = "kv-store";
+        private readonly string kvStoreTopic = "kv-store-topic";
+        private readonly string otherStoreName = "other-store";
+        private readonly string otherStoreTopic = "other-store-topic";
+
+        [SetUp]
+        public void SetUp()
+        {
+            var mockSupplier = new SyncKafkaSupplier();
+            var consumerConfig = new ConsumerConfig();
+            consumerConfig.GroupId = "global-consulmer";
+            var globalConsumer = mockSupplier.GetConsumer(consumerConfig, null);
+            
+            streamConfigMock = new Mock<IStreamConfig>();
+            streamConfigMock.Setup(c => c.StateDir).Returns(".");
+            streamConfigMock.Setup(c => c.ApplicationId).Returns("app");
+
+            kvStoreMock = CreateMockStore<IKeyValueStore<object, object>>(kvStoreName);
+            otherStoreMock = CreateMockStore<IKeyValueStore<object, object>>(otherStoreName);
+            var globalStateStores = new Dictionary<string, IStateStore>() {
+                { kvStoreMock.Object.Name, kvStoreMock.Object },
+                { otherStoreMock.Object.Name, otherStoreMock.Object }
+            };
+            var storesToTopics = new Dictionary<string, string>() {
+                { kvStoreMock.Object.Name, kvStoreTopic },
+                { otherStoreMock.Object.Name, otherStoreTopic }
+            };
+
+            topology = new ProcessorTopology(
+                    null,
+                    new Dictionary<string, IProcessor>(),
+                    new Dictionary<string, IProcessor>(),
+                    new Dictionary<string, IProcessor>(),
+                    new Dictionary<string, IStateStore>(),
+                    globalStateStores,
+                    storesToTopics);
+
+            adminClientMock = new Mock<IAdminClient>();
+            RegisterPartitionInAdminClient(kvStoreTopic);
+            RegisterPartitionInAdminClient(otherStoreTopic);
+
+            stateManager = new GlobalStateManager(globalConsumer, topology,
+                    adminClientMock.Object,
+                    streamConfigMock.Object
+                );
+
+            context = new GlobalProcessorContext(
+                streamConfigMock.Object,
+                stateManager);
+            
+            stateManager.SetGlobalProcessorContext(context);
+        }
+
+        [Test]
+        public void ShouldInitializeStateStores()
+        {
+            stateManager.Initialize();
+
+            kvStoreMock.Verify(store => store.Init(It.IsAny<ProcessorContext>(), It.IsAny<IStateStore>()), Times.Once);
+        }
+
+        [Test]
+        public void ShouldInitializeWithGlobalContext()
+        {
+            stateManager.Initialize();
+
+            kvStoreMock.Verify(store => store.Init(context, It.IsAny<IStateStore>()), Times.Once);
+        }
+
+        [Test]
+        public void ShouldReturnInitializedStoreNames()
+        {
+            ISet<string> storeNames = stateManager.Initialize();
+
+            Assert.AreEqual(new HashSet<string>() { kvStoreName, otherStoreName }, storeNames);
+        }
+
+        [Test]
+        public void ShouldThrowIfSameStoreTwiceTwiceInTopology()
+        {
+            // this was already registered once
+            topology.GlobalStateStores.Add($"kvStoreMock.Object.Name{1}", kvStoreMock.Object);
+
+            Assert.Throws<ArgumentException>(() => stateManager.Initialize());
+        }
+
+        [Test]
+        public void ShouldThrowIfNoPartitionsFoundForStore()
+        {
+            kvStoreMock
+                .Setup(s => s.Init(context, It.IsAny<IStateStore>()))
+                .Callback((ProcessorContext c, IStateStore store) =>
+                {
+                    stateManager.Register(store, (k, v) => { });
+                });
+            
+            adminClientMock.Setup(client => client.GetMetadata(kvStoreTopic, It.IsAny<TimeSpan>())).Returns((Metadata)null);
+            Assert.Throws<StreamsException>(() => stateManager.Initialize());
+        }
+
+        [Test]
+        public void ShouldSetChangelogOffsetToZero()
+        {
+            stateManager.Initialize();
+            stateManager.Register(kvStoreMock.Object, null);
+
+            Assert.AreEqual(-2, stateManager.ChangelogOffsets.Single(x => x.Key.Topic == kvStoreTopic).Value);
+        }
+
+        [Test]
+        public void ShouldReturnStore()
+        {
+            stateManager.Initialize();
+            stateManager.Register(kvStoreMock.Object, null);
+
+            var result = stateManager.GetStore(kvStoreName);
+
+            Assert.AreEqual(kvStoreMock.Object, result);
+        }
+
+        [Test]
+        public void ShouldReturnNullIfNoStore()
+        {
+            stateManager.Initialize();
+
+            var result = stateManager.GetStore("some-store-name");
+
+            Assert.AreEqual(null, result);
+        }
+
+        [Test]
+        public void ShouldFlushStateStores()
+        {
+            stateManager.Initialize();
+            stateManager.Register(kvStoreMock.Object, null);
+            stateManager.Register(otherStoreMock.Object, null);
+
+            stateManager.Flush();
+
+            kvStoreMock.Verify(x => x.Flush(), Times.Once);
+            otherStoreMock.Verify(x => x.Flush(), Times.Once);
+        }
+
+        [Test]
+        public void ShouldCloseStateStores()
+        {
+            stateManager.Initialize();
+            stateManager.Register(kvStoreMock.Object, null);
+            stateManager.Register(otherStoreMock.Object, null);
+
+            stateManager.Close();
+
+            kvStoreMock.Verify(x => x.Close(), Times.Once);
+            otherStoreMock.Verify(x => x.Close(), Times.Once);
+        }
+
+        [Test]
+        public void ShouldThrowIfStoreCloseFailed()
+        {
+            stateManager.Initialize();
+            stateManager.Register(kvStoreMock.Object, null);
+            kvStoreMock.Setup(x => x.Close()).Throws(new ProcessorStateException("boom!"));
+
+            Assert.Throws<ProcessorStateException>(() => stateManager.Close());
+        }
+
+        [Test]
+        public void ShouldAttemptToCloseAllStoresEvenWhenSomeException()
+        {
+            stateManager.Initialize();
+            stateManager.Register(kvStoreMock.Object, null);
+            stateManager.Register(otherStoreMock.Object, null);
+
+            kvStoreMock.Setup(x => x.Close()).Throws(new ProcessorStateException("boom!"));
+
+            try
+            {
+                stateManager.Close();
+            }
+            catch
+            {
+                // expected
+            }
+
+            kvStoreMock.Verify(x => x.Close(), Times.Once);
+            otherStoreMock.Verify(x => x.Close(), Times.Once);
+        }
+
+        private Mock<T> CreateMockStore<T>(string name, bool isOpen = true) where T : class, IStateStore
+        {
+            var store = new Mock<T>();
+            store.Setup(kvStore => kvStore.Name).Returns(name);
+            store.Setup(kvStore => kvStore.IsOpen).Returns(isOpen);
+            return store;
+        }
+
+        private void RegisterPartitionInAdminClient(string topic)
+        {
+            adminClientMock.Setup(client => client.GetMetadata(topic, It.IsAny<TimeSpan>())).Returns(
+                new Metadata(
+                    null,
+                    new List<TopicMetadata>() {
+                        new TopicMetadata(
+                            topic,
+                            new List<PartitionMetadata>() { new PartitionMetadata(0, 0, new int[] { }, new int[] { }, null) },
+                            null)
+                    }, 0, "")
+            );
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource globalConsumer of type Streamiz.Kafka.Net.Mock.Sync.SyncConsumer, Leaked resource mockSupplier.Streamiz.Kafka.Net.Mock.Sync.SyncKafkaSupplier.producer of type Streamiz.Kafka.Net.Mock.Sync.SyncProducer, Leaked resource mockSupplier.Streamiz.Kafka.Net.Mock.Sync.SyncKafkaSupplier.admin of type Streamiz.Kafka.Net.Mock.Sync.SyncAdminClient in method "Void GlobalStateManagerTests.SetUp()".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void GlobalStateManagerTests.SetUp()
+
+### File:
+test/Streamiz.Kafka.Net.Tests/Private/GlobalStateManagerTests.cs
+
+### Key:
+GlobalStateManagerTests.cs|SetUp|DOTNET_RESOURCE_LEAK
+
+### Hash:
+88eb5c046426ea67120ff60b06ab12a4
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0391/instruction.md

@@ -0,0 +1,128 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** opengl4csharp
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+
+namespace OpenGL.Constructs
+{
+    public class Geometry
+    {
+        /// <summary>
+        /// Create a basic quad by storing two triangles into a VAO.
+        /// This quad includes UV co-ordinates from 0,0 to 1,1.
+        /// </summary>
+        /// <param name="program">The ShaderProgram assigned to this quad.</param>
+        /// <param name="location">The location of the VAO (assigned to the vertices).</param>
+        /// <param name="size">The size of the VAO (assigned to the vertices).</param>
+        /// <returns>The VAO object representing this quad.</returns>
+        public static VAO CreateQuad(ShaderProgram program, Vector2 location, Vector2 size)
+        {
+            Vector3[] vertices = new Vector3[] { new Vector3(location.x, location.y, 0), new Vector3(location.x + size.x, location.y, 0), 
+                new Vector3(location.x + size.x, location.y + size.y, 0), new Vector3(location.x, location.y + size.y, 0) };
+            Vector2[] uvs = new Vector2[] { new Vector2(0, 0), new Vector2(1, 0), new Vector2(1, 1), new Vector2(0, 1) };
+            int[] indices = new int[] { 0, 1, 2, 2, 3, 0 };
+
+            return new VAO(program, new VBO<Vector3>(vertices), new VBO<Vector2>(uvs), new VBO<int>(indices, BufferTarget.ElementArrayBuffer, BufferUsageHint.StaticRead));
+        }
+
+        /// <summary>
+        /// Create a basic quad by storing two triangles into a VAO.
+        /// This quad includes UV co-ordinates from uvloc to uvloc+uvsize.
+        /// </summary>
+        /// <param name="program">The ShaderProgram assigned to this quad.</param>
+        /// <param name="location">The location of the VAO (assigned to the vertices).</param>
+        /// <param name="size">The size of the VAO (assigned to the vertices).</param>
+        /// <param name="uvloc">The origin of the UV co-ordinates.</param>
+        /// <param name="uvsize">The size of the UV co-ordinates.</param>
+        /// <returns>The VAO object representing this quad.</returns>
+        public static VAO CreateQuad(ShaderProgram program, Vector2 location, Vector2 size, Vector2 uvloc, Vector2 uvsize)
+        {
+            Vector3[] vertices = new Vector3[] { new Vector3(location.x, location.y, 0), new Vector3(location.x + size.x, location.y, 0), 
+                new Vector3(location.x + size.x, location.y + size.y, 0), new Vector3(location.x, location.y + size.y, 0) };
+            Vector2[] uvs = new Vector2[] { uvloc, new Vector2(uvloc.x + uvsize.x, uvloc.y), new Vector2(uvloc.x + uvsize.x, uvloc.y + uvsize.y), new Vector2(uvloc.x, uvloc.y + uvsize.y) };
+            int[] indices = new int[] { 0, 1, 2, 2, 3, 0 };
+
+            return new VAO(program, new VBO<Vector3>(vertices), new VBO<Vector2>(uvs), new VBO<int>(indices, BufferTarget.ElementArrayBuffer, BufferUsageHint.StaticRead));
+        }
+
+        /// <summary>
+        /// Create a basic cube and store into a VAO.
+        /// This cube consists of 12 triangles and 6 faces.
+        /// </summary>
+        /// <param name="program">The ShaderProgram assigned to this cube.</param>
+        /// <param name="min">The 3 minimum values of the cube (lower left back corner).</param>
+        /// <param name="max">The 3 maximum values of the cube (top right front corner).</param>
+        /// <returns></returns>
+        public static VAO CreateCube(ShaderProgram program, Vector3 min, Vector3 max)
+        {
+            Vector3[] vertex = new Vector3[] {
+                new Vector3(min.x, min.y, min.z),
+                new Vector3(min.x, min.y, max.z),
+                new Vector3(min.x, max.y, min.z),
+                new Vector3(min.x, max.y, max.z),
+                new Vector3(max.x, min.y, min.z),
+                new Vector3(max.x, min.y, max.z),
+                new Vector3(max.x, max.y, min.z),
+                new Vector3(max.x, max.y, max.z) };
+            int[] element = new int[] { 0, 1, 2, 1, 3, 2, 1, 5, 3, 5, 7, 3, 4, 0, 2, 4, 2, 6, 5, 4, 6, 5, 6, 7, 2, 3, 6, 6, 3, 7, 0, 1, 5, 5, 4, 0 };
+
+            return new VAO(program, new VBO<Vector3>(vertex), new VBO<int>(element));
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource return of type OpenGL.VAO, Leaked resource (output of OpenGL.VBO`1<T>::.ctor() at Line 66) of type OpenGL.VBO`1<T>, Leaked resource (output of OpenGL.VBO`1<T>::.ctor() at Line 66) of type OpenGL.VBO`1<T> in method "VAO Geometry.CreateCube(ShaderProgram,Vector3,Vector3)".
+
+### Severity:
+ERROR
+
+### Procedure:
+VAO Geometry.CreateCube(ShaderProgram,Vector3,Vector3)
+
+### File:
+OpenGL/Constructs/Geometry.cs
+
+### Key:
+Geometry.cs|CreateCube|DOTNET_RESOURCE_LEAK
+
+### Hash:
+447d4d4381cafcccacb11d5ef3478e2a
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0396/instruction.md

@@ -0,0 +1,143 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Blazor-Hackathon
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using Blazor.Components;
+using Blazor.Runtime.Components;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+
+namespace Blazor.Routing
+{
+    public static class Router
+    {
+        private static string _mountInElementSelector;
+        private static string _currentPageComponentPath;
+        private static Component _currentPageComponent;
+        public static IEnumerable<Assembly> ViewAssemblies;
+        private static BlazorContext _context;
+
+        public static void MountInElement(string selector)
+        {
+            _mountInElementSelector = selector;
+        }
+
+        internal static Component OnNavigation(string descriptor)
+        {
+            var parsed = MiniJSON.Json.Deserialize(descriptor) as Dictionary<string, object>;
+            var url = (string)parsed["url"];
+            var absoluteUrl = (string)parsed["absoluteUrl"];
+            if (_context == null)
+            {
+                _context = new BlazorContext(absoluteUrl);
+            }
+            else
+            {
+                _context.AbsoluteUrl = absoluteUrl;
+            }
+            return MountPageFromUrl(url, _context);
+        }
+
+        internal static Component MountPageFromUrl(string url, BlazorContext context)
+        {
+            // By holding the _currentPageComponent in a static property, we ensure that it doesn't
+            // get GCed while the user can still see and try to interact with it.
+            // TODO: Instead of just using "MountAsPage" which destroys the entire previous element content,
+            //       somehow find the nearest common layout ancestor between the old and new page, and retain
+            //       the DOM/vdom up to and including that layout, and just insert the new sequence of child
+            //       layouts and the new page into it.
+            _currentPageComponentPath = UrlToComponentPath(url);
+            return _currentPageComponent = RazorComponent
+                .Instantiate(_currentPageComponentPath, context)
+                .MountAsPage(_mountInElementSelector);
+        }
+
+        private static string UrlToComponentPath(string url)
+        {
+            if (url.Equals("/"))
+            {
+                url = url + "Index";
+            }
+            if (url[url.Length - 1] == '/')
+            {
+                url = url.Substring(0, url.Length - 1);
+            }
+            var split = url.Split(new char[] { '/' });
+            var id = split[split.Length - 1];
+            int res;
+            if (int.TryParse(id, out res))
+            {
+                // We have an int, remove id and continue
+                string temp = "/";
+                for (int i =0; i < split.Length - 1; i++)
+                {
+                    temp += split[i];
+                }
+                Console.WriteLine(temp);
+                return $".{temp.Replace('/', Path.DirectorySeparatorChar)}.cshtml";
+            }
+            
+            return $".{url.Replace('/', Path.DirectorySeparatorChar)}.cshtml";
+        }
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `parsed` last assigned on line 25 could be null and is dereferenced at line 26, column 13.
+
+### Severity:
+ERROR
+
+### Procedure:
+Component Router.OnNavigation(String)
+
+### File:
+src/Blazor.Runtime/Routing/Router.cs
+
+### Key:
+Router.cs|OnNavigation|NULL_DEREFERENCE
+
+### Node Key:
+4c5a0b70536cd3f04e9da256c6c8ae68
+
+### Hash:
+7b039b3a86cbe7d9bf21bb6b15de9c32
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0398/instruction.md

@@ -0,0 +1,188 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** AspNetCoreCertificates
+**Bug ID:** 2
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using CertificateManager;
+using CertificateManager.Models;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Xunit;
+
+namespace CertificateManagerTests
+{
+    public class DistinguishedNameTests
+    {
+
+        [Fact]
+        public void DnCompleteValid()
+        {
+            var serviceProvider = new ServiceCollection()
+                .AddCertificateManager()
+                .BuildServiceProvider();
+
+            var certManagerService = serviceProvider.GetService<CertificateManagerService>();
+
+
+            var rootCaL1 = certManagerService.CreateRootCertificateForClientServerAuth(
+                new DistinguishedName { 
+                    CommonName = "root dev", 
+                    Country = "IT", 
+                    Locality = "DD", 
+                    Organisation="SS", 
+                    OrganisationUnit="unit",
+                    StateProvince= "yes"
+                },
+                new ValidityPeriod { ValidFrom = DateTime.UtcNow, ValidTo = DateTime.UtcNow.AddYears(10) },
+                3, "localhost");
+
+            Assert.Equal("CN=root dev, C=IT, O=SS, OU=unit, L=DD, S=yes", rootCaL1.Subject);
+            Assert.Equal("CN=root dev, C=IT, O=SS, OU=unit, L=DD, S=yes", rootCaL1.Issuer);
+        }
+
+        [Fact]
+        public void DnHalfCompleteValid()
+        {
+            var serviceProvider = new ServiceCollection()
+                .AddCertificateManager()
+                .BuildServiceProvider();
+
+            var certManagerService = serviceProvider.GetService<CertificateManagerService>();
+
+
+            var rootCaL1 = certManagerService.CreateRootCertificateForClientServerAuth(
+                new DistinguishedName
+                {
+                    CommonName = "root dev",
+                    Country = "IT",
+                    Locality = "DD",
+                    Organisation = "SS"
+
+                },
+                new ValidityPeriod { ValidFrom = DateTime.UtcNow, ValidTo = DateTime.UtcNow.AddYears(10) },
+                3, "localhost");
+
+            Assert.Equal("CN=root dev, C=IT, O=SS, L=DD", rootCaL1.Subject);
+            Assert.Equal("CN=root dev, C=IT, O=SS, L=DD", rootCaL1.Issuer);
+        }
+
+        [Fact]
+        public void DnMissingCountry()
+        {
+            var serviceProvider = new ServiceCollection()
+                .AddCertificateManager()
+                .BuildServiceProvider();
+
+            var certManagerService = serviceProvider.GetService<CertificateManagerService>();
+
+
+            certManagerService.CreateRootCertificateForClientServerAuth(
+                new DistinguishedName
+                {
+                    CommonName = "root dev",
+                    Locality = "DD",
+                    Organisation = "SS",
+                    OrganisationUnit = "unit",
+                    StateProvince = "yes"
+                },
+                new ValidityPeriod { ValidFrom = DateTime.UtcNow, ValidTo = DateTime.UtcNow.AddYears(10) },
+                3, "localhost");
+
+        }
+
+        [Fact]
+        public void DnMissingCommonName()
+        {
+            var serviceProvider = new ServiceCollection()
+                .AddCertificateManager()
+                .BuildServiceProvider();
+
+            var certManagerService = serviceProvider.GetService<CertificateManagerService>();
+
+
+            certManagerService.CreateRootCertificateForClientServerAuth(
+                new DistinguishedName
+                {
+                    Country = "IT",
+                    Locality = "DD",
+                    Organisation = "SS",
+                    OrganisationUnit = "unit",
+                    StateProvince = "yes"
+                },
+                new ValidityPeriod { ValidFrom = DateTime.UtcNow, ValidTo = DateTime.UtcNow.AddYears(10) },
+                3, "localhost");
+        }
+
+        [Fact]
+        public void DnNull()
+        {
+            var serviceProvider = new ServiceCollection()
+                .AddCertificateManager()
+                .BuildServiceProvider();
+
+            var certManagerService = serviceProvider.GetService<CertificateManagerService>();
+
+
+            certManagerService.CreateRootCertificateForClientServerAuth(
+                null,
+                new ValidityPeriod { ValidFrom = DateTime.UtcNow, ValidTo = DateTime.UtcNow.AddYears(10) },
+                3, "localhost");
+        }
+    }
+}
+
+```
+
+### Bug Type:
+NULLPTR_DEREFERENCE
+
+### Qualifier:
+null (last assigned on line 123) is dereferenced in call to `CertificateManagerService.CreateRootCertificateForClientServerAuth(...)`.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void DistinguishedNameTests.DnNull()
+
+### File:
+CertificatesCreation/CertificateManagerTests/DistinguishedNameTests.cs
+
+### Key:
+DistinguishedNameTests.cs|DnNull|NULLPTR_DEREFERENCE
+
+### Hash:
+95ce4460b8ee68a538110727a2fd7dba
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0399/instruction.md

@@ -0,0 +1,69 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** design-patterns-explained-with-food
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+namespace CreationalPatterns.Prototype.DiningRoomIcons.Chairs {
+    public class CafeChairIcon : IChairIcon {
+        public bool HasSeatCushions => false;
+
+        public IDeepCloneable DeepClone() {
+            CafeChairIcon cafeChairIcon = null;
+            return cafeChairIcon.DeepClone();
+        }
+    }
+}
+
+```
+
+### Bug Type:
+NULLPTR_DEREFERENCE
+
+### Qualifier:
+`cafeChairIcon` could be null (last assigned on line 6) and is dereferenced.
+
+### Severity:
+ERROR
+
+### Procedure:
+IDeepCloneable CafeChairIcon.DeepClone()
+
+### File:
+CreationalPatterns/Prototype/DiningRoomIcons/Chairs/CafeChairIcon.cs
+
+### Key:
+CafeChairIcon.cs|DeepClone|NULLPTR_DEREFERENCE
+
+### Hash:
+505c395db673e44f4f391084e8de2943
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0440/instruction.md

@@ -0,0 +1,637 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** apm-agent-dotnet
+**Bug ID:** 19
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Elastic.Apm.Api;
+using Elastic.Apm.Model.Payload;
+using Elastic.Apm.Tests.Mocks;
+using Xunit;
+
+namespace Elastic.Apm.Tests.ApiTests
+{
+	/// <summary>
+	/// Tests the API for manual instrumentation.
+	/// Only tests scenarios when using the convenient API and only test transactions.
+	/// Spans are covered by <see cref="ConvenientApiSpanTests" />.
+	/// Scenarios with manually calling <see cref="Tracer.StartTransaction" />,
+	/// <see cref="Transaction.StartSpan" />, <see cref="Transaction.End" />
+	/// are covered by <see cref="ApiTests" />
+	/// Very similar to <see cref="ConvenientApiSpanTests" />. The test cases are the same,
+	/// but this one tests the CaptureTransaction method - including every single overload.
+	/// </summary>
+	public class ConvenientApiTransactionTests
+	{
+		private const string ExceptionMessage = "Foo";
+		private const int SleepLength = 45;
+		private const string TransactionName = "ConvenientApiTest";
+		private const string TransactionType = "Test";
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction(string,string,System.Action)" /> method.
+		/// It wraps a fake transaction (Thread.Sleep) into the CaptureTransaction method
+		/// and it makes sure that the transaction is captured by the agent.
+		/// </summary>
+		[Fact]
+		public void SimpleAction() => AssertWith1Transaction(agent =>
+		{
+			agent.Tracer.CaptureTransaction(TransactionName, TransactionType,
+				() => { Thread.Sleep(SleepLength); });
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction(string,string,System.Action)" /> method with an exception.
+		/// It wraps a fake transaction (Thread.Sleep) that throws an exception into the CaptureTransaction method
+		/// and it makes sure that the transaction and the exception are captured by the agent.
+		/// </summary>
+		[Fact]
+		public void SimpleActionWithException() => AssertWith1TransactionAnd1Error(agent =>
+		{
+			Assert.Throws<InvalidOperationException>(() =>
+			{
+				agent.Tracer.CaptureTransaction(TransactionName, TransactionType, new Action(() =>
+				{
+					Thread.Sleep(SleepLength);
+					throw new InvalidOperationException(ExceptionMessage);
+				}));
+			});
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction(string,string,System.Action{ITransaction})" /> method.
+		/// It wraps a fake transaction (Thread.Sleep) into the CaptureTransaction method with an <see cref="Action{T}" />
+		/// parameter
+		/// and it makes sure that the transaction is captured by the agent and the <see cref="Action{ITransaction}" /> parameter
+		/// is not null
+		/// </summary>
+		[Fact]
+		public void SimpleActionWithParameter() => AssertWith1Transaction(agent =>
+		{
+			agent.Tracer.CaptureTransaction(TransactionName, TransactionType,
+				t =>
+				{
+					Assert.NotNull(t);
+					Thread.Sleep(SleepLength);
+				});
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction(string,string,System.Action{ITransaction})" /> method with an exception.
+		/// It wraps a fake transaction (Thread.Sleep) that throws an exception into the CaptureTransaction method with an
+		/// <see cref="Action{ITransaction}" /> parameter
+		/// and it makes sure that the transaction and the error are captured by the agent and the
+		/// <see cref="Action{ITransaction}" /> parameter is not null
+		/// </summary>
+		[Fact]
+		public void SimpleActionWithExceptionAndParameter() => AssertWith1TransactionAnd1Error(agent =>
+		{
+			Assert.Throws<InvalidOperationException>(() =>
+			{
+				agent.Tracer.CaptureTransaction(TransactionName, TransactionType, new Action<ITransaction>(t =>
+				{
+					Assert.NotNull(t);
+					Thread.Sleep(SleepLength);
+					throw new InvalidOperationException(ExceptionMessage);
+				}));
+			});
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction{T}(string,string,System.Func{T})" /> method.
+		/// It wraps a fake transaction (Thread.Sleep) with a return value into the CaptureTransaction method
+		/// and it makes sure that the transaction is captured by the agent and the return value is correct.
+		/// </summary>
+		[Fact]
+		public void SimpleActionWithReturnType() => AssertWith1Transaction(agent =>
+		{
+			var res = agent.Tracer.CaptureTransaction(TransactionName, TransactionType, () =>
+			{
+				Thread.Sleep(SleepLength);
+				return 42;
+			});
+
+			Assert.Equal(42, res);
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction{T}(string,string,System.Func{ITransaction,T})" /> method.
+		/// It wraps a fake transaction (Thread.Sleep) with a return value into the CaptureTransaction method with an
+		/// <see cref="Action{ITransaction}" /> parameter
+		/// and it makes sure that the transaction is captured by the agent and the return value is correct and the
+		/// <see cref="Action{ITransaction}" /> is not null.
+		/// </summary>
+		[Fact]
+		public void SimpleActionWithReturnTypeAndParameter() => AssertWith1Transaction(agent =>
+		{
+			var res = agent.Tracer.CaptureTransaction(TransactionName, TransactionType,
+				t =>
+				{
+					Assert.NotNull(t);
+					Thread.Sleep(SleepLength);
+					return 42;
+				});
+
+			Assert.Equal(42, res);
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction{T}(string,string,System.Func{ITransaction,T})" /> method with an
+		/// exception.
+		/// It wraps a fake transaction (Thread.Sleep) with a return value that throws an exception into the CaptureTransaction
+		/// method with an <see cref="Action{ITransaction}" /> parameter
+		/// and it makes sure that the transaction and the error are captured by the agent and the return value is correct and the
+		/// <see cref="Action{ITransaction}" /> is not null.
+		/// </summary>
+		[Fact]
+		public void SimpleActionWithReturnTypeAndExceptionAndParameter() => AssertWith1TransactionAnd1Error(agent =>
+		{
+			Assert.Throws<InvalidOperationException>(() =>
+			{
+				var result = agent.Tracer.CaptureTransaction(TransactionName, TransactionType, t =>
+				{
+					Assert.NotNull(t);
+					Thread.Sleep(SleepLength);
+
+					if (new Random().Next(1) == 0) //avoid unreachable code warning.
+						throw new InvalidOperationException(ExceptionMessage);
+
+					return 42;
+				});
+
+				Assert.True(false); //Should not be executed because the agent isn't allowed to catch an exception.
+				Assert.Equal(42, result); //But if it'd not throw it'd be 42.
+			});
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction{T}(string,string,System.Func{T})" /> method with an exception.
+		/// It wraps a fake transaction (Thread.Sleep) with a return value that throws an exception into the CaptureTransaction
+		/// method
+		/// and it makes sure that the transaction and the error are captured by the agent.
+		/// </summary>
+		[Fact]
+		public void SimpleActionWithReturnTypeAndException() => AssertWith1TransactionAnd1Error(agent =>
+		{
+			Assert.Throws<InvalidOperationException>(() =>
+			{
+				var result = agent.Tracer.CaptureTransaction(TransactionName, TransactionType, () =>
+				{
+					Thread.Sleep(SleepLength);
+
+					if (new Random().Next(1) == 0) //avoid unreachable code warning.
+						throw new InvalidOperationException(ExceptionMessage);
+
+					return 42;
+				});
+
+				Assert.True(false); //Should not be executed because the agent isn't allowed to catch an exception.
+				Assert.Equal(42, result); //But if it'd not throw it'd be 42.
+			});
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction(string,string,System.Func{Task})" /> method.
+		/// It wraps a fake async transaction (Task.Delay) into the CaptureTransaction method
+		/// and it makes sure that the transaction is captured.
+		/// </summary>
+		[Fact]
+		public async Task AsyncTask() => await AssertWith1TransactionAsync(async agent =>
+		{
+			await agent.Tracer.CaptureTransaction(TransactionName, TransactionType,
+				async () => { await Task.Delay(SleepLength); });
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction(string,string,System.Func{Task})" /> method with an exception
+		/// It wraps a fake async transaction (Task.Delay) that throws an exception into the CaptureTransaction method
+		/// and it makes sure that the transaction and the error are captured.
+		/// </summary>
+		[Fact]
+		public async Task AsyncTaskWithException() => await AssertWith1TransactionAnd1ErrorAsync(async agent =>
+		{
+			await Assert.ThrowsAsync<InvalidOperationException>(async () =>
+			{
+				await agent.Tracer.CaptureTransaction(TransactionName, TransactionType, async () =>
+				{
+					await Task.Delay(SleepLength);
+					throw new InvalidOperationException(ExceptionMessage);
+				});
+			});
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction(string,string,System.Func{ITransaction, Task})" /> method.
+		/// It wraps a fake async transaction (Task.Delay) into the CaptureTransaction method with an
+		/// <see cref="Action{ITransaction}" /> parameter
+		/// and it makes sure that the transaction is captured and the <see cref="Action{ITransaction}" /> parameter is not null.
+		/// </summary>
+		[Fact]
+		public async Task AsyncTaskWithParameter() => await AssertWith1TransactionAsync(async agent =>
+		{
+			await agent.Tracer.CaptureTransaction(TransactionName, TransactionType,
+				async t =>
+				{
+					Assert.NotNull(t);
+					await Task.Delay(SleepLength);
+				});
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction(string,string,System.Func{ITransaction, Task})" /> method with an
+		/// exception.
+		/// It wraps a fake async transaction (Task.Delay) that throws an exception into the CaptureTransaction method with an
+		/// <see cref="Action{ITransaction}" /> parameter
+		/// and it makes sure that the transaction and the error are captured and the <see cref="Action{ITransaction}" /> parameter
+		/// is not null.
+		/// </summary>
+		[Fact]
+		public async Task AsyncTaskWithExceptionAndParameter() => await AssertWith1TransactionAnd1ErrorAsync(async agent =>
+		{
+			await Assert.ThrowsAsync<InvalidOperationException>(async () =>
+			{
+				await agent.Tracer.CaptureTransaction(TransactionName, TransactionType, async t =>
+				{
+					Assert.NotNull(t);
+					await Task.Delay(SleepLength);
+					throw new InvalidOperationException(ExceptionMessage);
+				});
+			});
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction{T}(string,string,System.Func{Task{T}})" /> method.
+		/// It wraps a fake async transaction (Task.Delay) with a return value into the CaptureTransaction method
+		/// and it makes sure that the transaction is captured by the agent and the return value is correct.
+		/// </summary>
+		[Fact]
+		public async Task AsyncTaskWithReturnType() => await AssertWith1TransactionAsync(async agent =>
+		{
+			var res = await agent.Tracer.CaptureTransaction(TransactionName, TransactionType, async () =>
+			{
+				await Task.Delay(SleepLength);
+				return 42;
+			});
+			Assert.Equal(42, res);
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction{T}(string,string,System.Func{ITransaction,Task{T}})" /> method.
+		/// It wraps a fake async transaction (Task.Delay) with a return value into the CaptureTransaction method with an
+		/// <see cref="Action{ITransaction}" /> parameter
+		/// and it makes sure that the transaction is captured by the agent and the return value is correct and the
+		/// <see cref="ITransaction" /> is not null.
+		/// </summary>
+		[Fact]
+		public async Task AsyncTaskWithReturnTypeAndParameter() => await AssertWith1TransactionAsync(async agent =>
+		{
+			var res = await agent.Tracer.CaptureTransaction(TransactionName, TransactionType,
+				async t =>
+				{
+					Assert.NotNull(t);
+					await Task.Delay(SleepLength);
+					return 42;
+				});
+
+			Assert.Equal(42, res);
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction{T}(string,string,System.Func{ITransaction,Task{T}})" /> method with an
+		/// exception.
+		/// It wraps a fake async transaction (Task.Delay) with a return value that throws an exception into the CaptureTransaction
+		/// method with an <see cref="Action{ITransaction}" /> parameter
+		/// and it makes sure that the transaction and the error are captured by the agent and the return value is correct and the
+		/// <see cref="Action{ITransaction}" /> is not null.
+		/// </summary>
+		[Fact]
+		public async Task AsyncTaskWithReturnTypeAndExceptionAndParameter() => await AssertWith1TransactionAnd1ErrorAsync(async agent =>
+		{
+			await Assert.ThrowsAsync<InvalidOperationException>(async () =>
+			{
+				var result = await agent.Tracer.CaptureTransaction(TransactionName, TransactionType, async t =>
+				{
+					Assert.NotNull(t);
+					await Task.Delay(SleepLength);
+
+					if (new Random().Next(1) == 0) //avoid unreachable code warning.
+						throw new InvalidOperationException(ExceptionMessage);
+
+					return 42;
+				});
+
+				Assert.True(false); //Should not be executed because the agent isn't allowed to catch an exception.
+				Assert.Equal(42, result); //But if it'd not throw it'd be 42.
+			});
+		});
+
+		/// <summary>
+		/// Tests the <see cref="Tracer.CaptureTransaction{T}(string,string,System.Func{Task{T}})" /> method with an exception.
+		/// It wraps a fake async transaction (Task.Delay) with a return value that throws an exception into the CaptureTransaction
+		/// method
+		/// and it makes sure that the transaction and the error are captured by the agent.
+		/// </summary>
+		[Fact]
+		public async Task AsyncTaskWithReturnTypeAndException() => await AssertWith1TransactionAnd1ErrorAsync(async agent =>
+		{
+			await Assert.ThrowsAsync<InvalidOperationException>(async () =>
+			{
+				var result = await agent.Tracer.CaptureTransaction(TransactionName, TransactionType, async () =>
+				{
+					await Task.Delay(SleepLength);
+
+					if (new Random().Next(1) == 0) //avoid unreachable code warning.
+						throw new InvalidOperationException(ExceptionMessage);
+
+					return 42;
+				});
+
+				Assert.True(false); //Should not be executed because the agent isn't allowed to catch an exception.
+				Assert.Equal(42, result); //But if it'd not throw it'd be 42.
+			});
+		});
+
+		/// <summary>
+		/// Wraps a cancelled task into the CaptureTransaction method and
+		/// makes sure that the cancelled task is captured by the agent.
+		/// </summary>
+		[Fact]
+		public async Task CancelledAsyncTask()
+		{
+			var payloadSender = new MockPayloadSender();
+			var agent = new ApmAgent(new TestAgentComponents(payloadSender: payloadSender));
+
+			var cancellationTokenSource = new CancellationTokenSource();
+			var token = cancellationTokenSource.Token;
+			cancellationTokenSource.Cancel();
+
+			await Assert.ThrowsAsync<OperationCanceledException>(async () =>
+			{
+				await agent.Tracer.CaptureTransaction(TransactionName, TransactionType,
+					async () =>
+					{
+						// ReSharper disable once MethodSupportsCancellation, we want to delay before we throw the exception
+						await Task.Delay(SleepLength);
+						token.ThrowIfCancellationRequested();
+					});
+			});
+
+			Assert.NotEmpty(payloadSender.Payloads);
+			Assert.NotEmpty(payloadSender.Payloads[0].Transactions);
+
+			Assert.Equal(TransactionName, payloadSender.Payloads[0].Transactions[0].Name);
+			Assert.Equal(TransactionType, payloadSender.Payloads[0].Transactions[0].Type);
+
+			//`await Task.Delay` is inaccurate, so we enable 10% error in the test
+			var expectedTransactionLength = SleepLength - (SleepLength * 0.1);
+			var duration = payloadSender.Payloads[0].Transactions[0].Duration;
+			Assert.True(duration >= expectedTransactionLength, $"Expected {duration} to be greater or equal to: {expectedTransactionLength}");
+
+			Assert.NotEmpty(payloadSender.Errors);
+			Assert.NotEmpty(payloadSender.Errors[0].Errors);
+
+			Assert.Equal("A task was canceled", payloadSender.Errors[0].Errors[0].Culprit);
+			Assert.Equal("Task canceled", payloadSender.Errors[0].Errors[0].Exception.Message);
+		}
+
+		/// <summary>
+		/// Creates a custom transaction and adds a tag to it.
+		/// Makes sure that the tag is stored on Transaction.Context.
+		/// </summary>
+		[Fact]
+		public void TagsOnTransaction()
+		{
+			var payloadSender = AssertWith1Transaction(
+				t =>
+				{
+					t.Tracer.CaptureTransaction(TransactionName, TransactionType, transaction =>
+					{
+						Thread.Sleep(SleepLength);
+						transaction.Tags["foo"] = "bar";
+					});
+				});
+
+			//According to the Intake API tags are stored on the Context (and not on Transaction.Tags directly).
+			Assert.Equal("bar", payloadSender.FirstTransaction.Context.Tags["foo"]);
+
+			//Also make sure the tag is visible directly on Transaction.Tags.
+			Assert.Equal("bar", payloadSender.Payloads[0].Transactions[0].Tags["foo"]);
+		}
+
+		/// <summary>
+		/// Creates a custom async transaction and adds a tag to it.
+		/// Makes sure that the tag is stored on Transaction.Context.
+		/// </summary>
+		[Fact]
+		public async Task TagsOnTransactionAsync()
+		{
+			var payloadSender = await AssertWith1TransactionAsync(
+				async t =>
+				{
+					await t.Tracer.CaptureTransaction(TransactionName, TransactionType, async transaction =>
+					{
+						await Task.Delay(SleepLength);
+						transaction.Tags["foo"] = "bar";
+					});
+				});
+
+			//According to the Intake API tags are stored on the Context (and not on Transaction.Tags directly).
+			Assert.Equal("bar", payloadSender.FirstTransaction.Context.Tags["foo"]);
+
+			//Also make sure the tag is visible directly on Transaction.Tags.
+			Assert.Equal("bar", payloadSender.Payloads[0].Transactions[0].Tags["foo"]);
+		}
+
+		/// <summary>
+		/// Creates a custom async Transaction that ends with an error and adds a tag to it.
+		/// Makes sure that the tag is stored on Transaction.Context.
+		/// </summary>
+		[Fact]
+		public async Task TagsOnTransactionAsyncError()
+		{
+			var payloadSender = await AssertWith1TransactionAnd1ErrorAsync(
+				async t =>
+				{
+					await Assert.ThrowsAsync<InvalidOperationException>(async () =>
+					{
+						await t.Tracer.CaptureTransaction(TransactionName, TransactionType, async transaction =>
+						{
+							await Task.Delay(SleepLength);
+							transaction.Tags["foo"] = "bar";
+
+							if (new Random().Next(1) == 0) //avoid unreachable code warning.
+								throw new InvalidOperationException(ExceptionMessage);
+						});
+					});
+				});
+
+			//According to the Intake API tags are stored on the Context (and not on Transaction.Tags directly).
+			Assert.Equal("bar", payloadSender.FirstTransaction.Context.Tags["foo"]);
+
+			//Also make sure the tag is visible directly on Transaction.Tags.
+			Assert.Equal("bar", payloadSender.Payloads[0].Transactions[0].Tags["foo"]);
+		}
+
+		/// <summary>
+		/// Asserts on 1 transaction with async code
+		/// </summary>
+		private async Task<MockPayloadSender> AssertWith1TransactionAsync(Func<ApmAgent, Task> func)
+		{
+			var payloadSender = new MockPayloadSender();
+			var agent = new ApmAgent(new TestAgentComponents(payloadSender: payloadSender));
+
+			await func(agent);
+
+			Assert.NotEmpty(payloadSender.Payloads);
+			Assert.NotEmpty(payloadSender.Payloads[0].Transactions);
+
+			Assert.Equal(TransactionName, payloadSender.Payloads[0].Transactions[0].Name);
+			Assert.Equal(TransactionType, payloadSender.Payloads[0].Transactions[0].Type);
+
+			//`await Task.Delay` is inaccurate, so we enable 10% error in the test
+			var expectedTransactionLength = SleepLength - (SleepLength * 0.1);
+			var duration = payloadSender.Payloads[0].Transactions[0].Duration;
+			Assert.True(duration >= expectedTransactionLength, $"Expected {duration} to be greater or equal to: {expectedTransactionLength}");
+
+			return payloadSender;
+		}
+
+		/// <summary>
+		/// Asserts on 1 async transaction and 1 error
+		/// </summary>
+		private async Task<MockPayloadSender> AssertWith1TransactionAnd1ErrorAsync(Func<ApmAgent, Task> func)
+		{
+			var payloadSender = new MockPayloadSender();
+			var agent = new ApmAgent(new TestAgentComponents(payloadSender: payloadSender));
+
+			await func(agent);
+
+			Assert.NotEmpty(payloadSender.Payloads);
+			Assert.NotEmpty(payloadSender.Payloads[0].Transactions);
+
+			Assert.Equal(TransactionName, payloadSender.Payloads[0].Transactions[0].Name);
+			Assert.Equal(TransactionType, payloadSender.Payloads[0].Transactions[0].Type);
+
+			//`await Task.Delay` is inaccurate, so we enable 10% error in the test
+			var expectedTransactionLength = SleepLength - (SleepLength * 0.1);
+			var duration = payloadSender.Payloads[0].Transactions[0].Duration;
+			Assert.True(duration >= expectedTransactionLength, $"Expected {duration} to be greater or equal to: {expectedTransactionLength}");
+
+			Assert.NotEmpty(payloadSender.Errors);
+			Assert.NotEmpty(payloadSender.Errors[0].Errors);
+
+			Assert.Equal(typeof(InvalidOperationException).FullName, payloadSender.Errors[0].Errors[0].Exception.Type);
+			Assert.Equal(ExceptionMessage, payloadSender.Errors[0].Errors[0].Exception.Message);
+			return payloadSender;
+		}
+
+		/// <summary>
+		/// Asserts on 1 transaction
+		/// </summary>
+		private MockPayloadSender AssertWith1Transaction(Action<ApmAgent> action)
+		{
+			var payloadSender = new MockPayloadSender();
+			var agent = new ApmAgent(new TestAgentComponents(payloadSender: payloadSender));
+
+			action(agent);
+
+			Assert.NotEmpty(payloadSender.Payloads);
+			Assert.NotEmpty(payloadSender.Payloads[0].Transactions);
+
+			Assert.Equal(TransactionName, payloadSender.Payloads[0].Transactions[0].Name);
+			Assert.Equal(TransactionType, payloadSender.Payloads[0].Transactions[0].Type);
+
+			//`await Task.Delay` is inaccurate, so we enable 10% error in the test
+			var expectedTransactionLength = SleepLength - (SleepLength * 0.1);
+			var duration = payloadSender.Payloads[0].Transactions[0].Duration;
+			Assert.True(duration >= expectedTransactionLength, $"Expected {duration} to be greater or equal to: {expectedTransactionLength}");
+
+			return payloadSender;
+		}
+
+		/// <summary>
+		/// Asserts on 1 transaction and 1 error
+		/// </summary>
+		private void AssertWith1TransactionAnd1Error(Action<ApmAgent> action)
+		{
+			var payloadSender = new MockPayloadSender();
+			var agent = new ApmAgent(new TestAgentComponents(payloadSender: payloadSender));
+
+			action(agent);
+
+			Assert.NotEmpty(payloadSender.Payloads);
+			Assert.NotEmpty(payloadSender.Payloads[0].Transactions);
+
+			Assert.Equal(TransactionName, payloadSender.Payloads[0].Transactions[0].Name);
+			Assert.Equal(TransactionType, payloadSender.Payloads[0].Transactions[0].Type);
+
+
+			//`await Task.Delay` is inaccurate, so we enable 10% error in the test
+			var expectedTransactionLength = SleepLength - (SleepLength * 0.1);
+			var duration = payloadSender.Payloads[0].Transactions[0].Duration;
+			Assert.True(duration >= expectedTransactionLength, $"Expected {duration} to be greater or equal to: {expectedTransactionLength}");
+
+			Assert.NotEmpty(payloadSender.Errors);
+			Assert.NotEmpty(payloadSender.Errors[0].Errors);
+
+			Assert.Equal(typeof(InvalidOperationException).FullName, payloadSender.Errors[0].Errors[0].Exception.Type);
+			Assert.Equal(ExceptionMessage, payloadSender.Errors[0].Errors[0].Exception.Message);
+		}
+	}
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource agent of type Elastic.Apm.ApmAgent, Leaked resource (output of Elastic.Apm.Tests.Mocks.TestAgentComponents::.ctor() at Line 555) of type Elastic.Apm.AgentComponents in method "Void ConvenientApiTransactionTests.AssertWith1TransactionAnd1Error(Action`1<!0>)".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void ConvenientApiTransactionTests.AssertWith1TransactionAnd1Error(Action`1<!0>)
+
+### File:
+test/Elastic.Apm.Tests/ApiTests/ConvenientApiTransactionTests.cs
+
+### Key:
+ConvenientApiTransactionTests.cs|AssertWith1TransactionAnd1Error|DOTNET_RESOURCE_LEAK
+
+### Hash:
+801ec49d4a6bf7108ce39e00432b095f
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0447/instruction.md

@@ -0,0 +1,430 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** apm-agent-dotnet
+**Bug ID:** 72
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Linq;
+using System.Threading;
+using Elastic.Apm.Config;
+using Elastic.Apm.Logging;
+using Elastic.Apm.Tests.Mocks;
+using FluentAssertions;
+using Xunit;
+
+namespace Elastic.Apm.Tests
+{
+	/// <summary>
+	/// Tests the configuration through environment variables
+	/// </summary>
+	public class EnvVarConfigTest : IDisposable
+	{
+		[Fact]
+		public void ServerUrlsSimpleTest()
+		{
+			var serverUrl = "http://myServer.com:1234";
+			var agent = new ApmAgent(new TestAgentComponents(serverUrls: serverUrl));
+			agent.ConfigurationReader.ServerUrls[0].OriginalString.Should().Be(serverUrl);
+			var rootedUrl = serverUrl + "/";
+			rootedUrl.Should().BeEquivalentTo(agent.ConfigurationReader.ServerUrls[0].AbsoluteUri);
+		}
+
+		[Fact]
+		public void ServerUrlsInvalidUrlTest()
+		{
+			var serverUrl = "InvalidUrl";
+			var agent = new ApmAgent(new TestAgentComponents(serverUrls: serverUrl));
+			agent.ConfigurationReader.ServerUrls[0].Should().Be(ConfigConsts.DefaultServerUri);
+		}
+
+		[Fact]
+		public void ServerUrlInvalidUrlLogTest()
+		{
+			var serverUrl = "InvalidUrl";
+			var logger = new TestLogger();
+			var agent = new ApmAgent(new TestAgentComponents(logger, serverUrl));
+			agent.ConfigurationReader.ServerUrls[0].Should().Be(ConfigConsts.DefaultServerUri);
+
+			logger.Lines.Should().NotBeEmpty();
+			logger.Lines[0]
+				.Should()
+				.ContainAll(
+					$"{{{nameof(TestAgentConfigurationReader)}}}",
+					"Failed parsing server URL from",
+					TestAgentConfigurationReader.Origin,
+					ConfigConsts.EnvVarNames.ServerUrls,
+					serverUrl
+				);
+		}
+
+		/// <summary>
+		/// Sets 2 servers and makes sure that they are all parsed
+		/// </summary>
+		[Fact]
+		public void ServerUrlsMultipleUrlsTest()
+		{
+			var serverUrl1 = "http://myServer1.com:1234";
+			var serverUrl2 = "http://myServer2.com:1234";
+			var serverUrls = $"{serverUrl1},{serverUrl2}";
+
+			var logger = new TestLogger();
+			var agent = new ApmAgent(new TestAgentComponents(logger, serverUrls));
+
+			var parsedUrls = agent.ConfigurationReader.ServerUrls;
+			parsedUrls[0].OriginalString.Should().Be(serverUrl1);
+			parsedUrls[0].AbsoluteUri.Should().BeEquivalentTo($"{serverUrl1}/");
+
+			parsedUrls[1].OriginalString.Should().Be(serverUrl2);
+			parsedUrls[1].AbsoluteUri.Should().BeEquivalentTo($"{serverUrl2}/");
+		}
+
+		/// <summary>
+		/// Sets 3 server urls, 2 of them are valid, 1 is invalid
+		/// Makes sure that the 2 valid urls are parsed and there is a log line for the invalid server url
+		/// </summary>
+		[Fact]
+		public void ServerUrlsMultipleUrlsWith1InvalidUrlTest()
+		{
+			var serverUrl1 = "http://myServer1.com:1234";
+			var serverUrl2 = "invalidUrl";
+			var serverUrl3 = "http://myServer2.com:1234";
+			var serverUrls = $"{serverUrl1},{serverUrl2},{serverUrl3}";
+			var logger = new TestLogger();
+			var agent = new ApmAgent(new TestAgentComponents(logger, serverUrls));
+
+			var parsedUrls = agent.ConfigurationReader.ServerUrls;
+			parsedUrls.Should().NotBeEmpty().And.HaveCount(2, "seeded 3 but one was invalid");
+			parsedUrls[0].OriginalString.Should().Be(serverUrl1);
+			parsedUrls[0].AbsoluteUri.Should().BeEquivalentTo($"{serverUrl1}/");
+
+			parsedUrls[1].OriginalString.Should().Be(serverUrl3);
+			parsedUrls[1].AbsoluteUri.Should().BeEquivalentTo($"{serverUrl3}/");
+
+			logger.Lines.Should().NotBeEmpty();
+			logger.Lines[0]
+				.Should()
+				.ContainAll(
+					$"{{{nameof(TestAgentConfigurationReader)}}}",
+					"Failed parsing server URL from",
+					TestAgentConfigurationReader.Origin,
+					ConfigConsts.EnvVarNames.ServerUrls,
+					serverUrl2
+				);
+		}
+
+		[Fact]
+		public void SecretTokenSimpleTest()
+		{
+			var secretToken = "secretToken";
+			var agent = new ApmAgent(new TestAgentComponents(secretToken: secretToken));
+			agent.ConfigurationReader.SecretToken.Should().Be(secretToken);
+		}
+
+		[Fact]
+		public void DefaultCaptureHeadersTest() => Agent.Config.CaptureHeaders.Should().Be(true);
+
+		[Fact]
+		public void SetCaptureHeadersTest()
+		{
+			Environment.SetEnvironmentVariable(ConfigConsts.EnvVarNames.CaptureHeaders, "false");
+			var config = new EnvironmentConfigurationReader();
+			config.CaptureHeaders.Should().Be(false);
+		}
+
+		[Fact]
+		public void DefaultTransactionSampleRateTest() =>
+			Agent.Config.TransactionSampleRate.Should().Be(ConfigConsts.DefaultValues.TransactionSampleRate);
+
+		[Fact]
+		public void SetTransactionSampleRateTest()
+		{
+			Environment.SetEnvironmentVariable(ConfigConsts.EnvVarNames.TransactionSampleRate, "0.789");
+			var config = new EnvironmentConfigurationReader();
+			config.TransactionSampleRate.Should().Be(0.789);
+		}
+
+		[Fact]
+		public void TransactionSampleRateExpectsDotForFloatingPoint()
+		{
+			Environment.SetEnvironmentVariable(ConfigConsts.EnvVarNames.TransactionSampleRate, "0,789");
+			var config = new EnvironmentConfigurationReader();
+			// Since comma was used instead of dot then default value will be used
+			config.TransactionSampleRate.Should().Be(ConfigConsts.DefaultValues.TransactionSampleRate);
+		}
+
+		[Fact]
+		public void DefaultLogLevelTest() => Agent.Config.LogLevel.Should().Be(LogLevel.Error);
+
+		[Fact]
+		public void SetDebugLogLevelTest()
+		{
+			var agent = new ApmAgent(new TestAgentComponents("Debug"));
+			agent.ConfigurationReader.LogLevel.Should().Be(LogLevel.Debug);
+			agent.Logger.Level.Should().Be(LogLevel.Debug);
+		}
+
+		[Fact]
+		public void SetErrorLogLevelTest()
+		{
+			var agent = new ApmAgent(new TestAgentComponents("Error"));
+			agent.ConfigurationReader.LogLevel.Should().Be(LogLevel.Error);
+			agent.Logger.Level.Should().Be(LogLevel.Error);
+		}
+
+		[Fact]
+		public void SetInfoLogLevelTest()
+		{
+			var agent = new ApmAgent(new TestAgentComponents("Information"));
+			agent.ConfigurationReader.LogLevel.Should().Be(LogLevel.Information);
+			agent.Logger.Level.Should().Be(LogLevel.Information);
+		}
+
+		[Fact]
+		public void SetWarningLogLevelTest()
+		{
+			var agent = new ApmAgent(new TestAgentComponents("Warning"));
+			agent.ConfigurationReader.LogLevel.Should().Be(LogLevel.Warning);
+			agent.Logger.Level.Should().Be(LogLevel.Warning);
+		}
+
+		[Fact]
+		public void SetInvalidLogLevelTest()
+		{
+			var logLevelValue = "InvalidLogLevel";
+			var agent = new ApmAgent(new TestAgentComponents(logLevelValue));
+			var logger = agent.Logger as TestLogger;
+
+			agent.ConfigurationReader.LogLevel.Should().Be(LogLevel.Error);
+			logger.Lines.Should().NotBeEmpty();
+			logger.Lines[0]
+				.Should()
+				.ContainAll(
+					$"{{{nameof(TestAgentConfigurationReader)}}}",
+					"Failed parsing log level from",
+					TestAgentConfigurationReader.Origin,
+					ConfigConsts.EnvVarNames.LogLevel,
+					"Defaulting to "
+				);
+		}
+
+		/// <summary>
+		/// The server doesn't accept services with '.' in it.
+		/// This test makes sure we don't have '.' in the default service name.
+		/// </summary>
+		[Fact]
+		public void DefaultServiceNameTest()
+		{
+			var payloadSender = new MockPayloadSender();
+			var agent = new ApmAgent(new AgentComponents(payloadSender: payloadSender));
+			agent.Tracer.CaptureTransaction("TestTransactionName", "TestTransactionType", t => { Thread.Sleep(2); });
+
+			//By default XUnit uses 'testhost' as the entry assembly, and that is what the
+			//agent reports if we don't set it to anything:
+			var serviceName = agent.Service.Name;
+			serviceName.Should().NotBeNullOrWhiteSpace();
+			serviceName.Should().NotContain(".");
+		}
+
+		/// <summary>
+		/// Sets the ELASTIC_APM_SERVICE_NAME environment variable and makes sure that
+		/// when the agent sends data to the server it has the value from the
+		/// ELASTIC_APM_SERVICE_NAME environment variable as service name.
+		/// </summary>
+		[Fact]
+		public void ReadServiceNameViaEnvironmentVariable()
+		{
+			var serviceName = "MyService123";
+			Environment.SetEnvironmentVariable(ConfigConsts.EnvVarNames.ServiceName, serviceName);
+			var payloadSender = new MockPayloadSender();
+			var agent = new ApmAgent(new AgentComponents(payloadSender: payloadSender));
+			agent.Tracer.CaptureTransaction("TestTransactionName", "TestTransactionType", t => { Thread.Sleep(2); });
+
+			agent.Service.Name.Should().Be(serviceName);
+		}
+
+		/// <summary>
+		/// Sets the ELASTIC_APM_SERVICE_NAME environment variable to a value that contains a '.'
+		/// Makes sure that when the agent sends data to the server it has the value from the
+		/// ELASTIC_APM_SERVICE_NAME environment variable as service name and also makes sure that
+		/// the '.' is replaced.
+		/// </summary>
+		[Fact]
+		public void ReadServiceNameWithDotViaEnvironmentVariable()
+		{
+			var serviceName = "My.Service.Test";
+			Environment.SetEnvironmentVariable(ConfigConsts.EnvVarNames.ServiceName, serviceName);
+			var payloadSender = new MockPayloadSender();
+			var agent = new ApmAgent(new AgentComponents(payloadSender: payloadSender));
+			agent.Tracer.CaptureTransaction("TestTransactionName", "TestTransactionType", t => { Thread.Sleep(2); });
+
+
+			agent.Service.Name.Should().Be(serviceName.Replace('.', '_'));
+			agent.Service.Name.Should().NotContain(".");
+		}
+
+		/// <summary>
+		/// In case the user does not provide us a service name we try to calculate it based on the callstack.
+		/// This test makes sure we recognize mscorlib and our own assemblies correctly in the
+		/// <see cref="AbstractConfigurationReader.IsMsOrElastic(byte[])" /> method.
+		/// </summary>
+		[Fact]
+		public void TestAbstractConfigurationReaderIsMsOrElastic()
+		{
+			var elasticToken = new byte[] { 174, 116, 0, 210, 193, 137, 207, 34 };
+			var mscorlibToken = new byte[] { 183, 122, 92, 86, 25, 52, 224, 137 };
+
+			AbstractConfigurationReader.IsMsOrElastic(elasticToken).Should().BeTrue();
+
+			AbstractConfigurationReader.IsMsOrElastic(new byte[] { 0 }).Should().BeFalse();
+			AbstractConfigurationReader.IsMsOrElastic(new byte[] { }).Should().BeFalse();
+
+			AbstractConfigurationReader
+				.IsMsOrElastic(new[]
+				{
+					elasticToken[0], mscorlibToken[1], elasticToken[2],
+					mscorlibToken[3], elasticToken[4], mscorlibToken[5], elasticToken[6], mscorlibToken[7]
+				})
+				.Should()
+				.BeFalse();
+		}
+
+		/// <summary>
+		/// Makes sure that the <see cref="EnvironmentConfigurationReader" /> logs
+		/// in case it reads an invalid URL.
+		/// </summary>
+		[Fact]
+		public void LoggerNotNull()
+		{
+			Environment.SetEnvironmentVariable(ConfigConsts.EnvVarNames.ServerUrls, "localhost"); //invalid, it should be "http://localhost"
+			var testLogger = new TestLogger();
+			var config = new EnvironmentConfigurationReader(testLogger);
+			var serverUrl = config.ServerUrls.FirstOrDefault();
+
+			serverUrl.Should().NotBeNull();
+			testLogger.Lines.Should().NotBeEmpty();
+		}
+
+		[Fact]
+		public void SetMetricsIntervalTo10S()
+		 => MetricsInterValTestCommon("10s").Should().Be(10 * 1000);
+
+		/// <summary>
+		/// Sets the metrics interval to '500ms'
+		/// Makes sure that 500ms defaults to 0, since the minimum is 1s
+		/// </summary>
+		[Fact]
+		public void SetMetricsInterValTo500Ms()
+			=> MetricsInterValTestCommon("500ms").Should().Be(0);
+
+		[Fact]
+		public void SetMetricsInterValTo1500Ms()
+			=> MetricsInterValTestCommon("1500ms").Should().Be(1500);
+
+		[Fact]
+		public void SetMetricsInterValTo1HourAs60minutes()
+			=> MetricsInterValTestCommon("60m").Should().Be(60*60*1000);
+
+		[Fact]
+		public void SetMetricsInterValTo1HourUsingUnsupportedUnits()
+			=> MetricsInterValTestCommon("1h").Should().Be(ConfigConsts.DefaultValues.MetricsIntervalInMilliseconds);
+
+		[Fact]
+		public void SetMetricsInterValTo1M()
+			=> MetricsInterValTestCommon("1m").Should().Be(60 * 1000);
+
+		/// <summary>
+		/// Sets the metrics interval to '10'.
+		/// Makes sure that '10' defaults to '10s'
+		/// </summary>
+		[Fact]
+		public void SetMetricsInterValTo10()
+			=> MetricsInterValTestCommon("10").Should().Be(10 * 1000);
+
+		/// <summary>
+		/// Any negative value should be treated as 0
+		/// </summary>
+		[Fact]
+		public void SetMetricsInterValToNegative5()
+			=> MetricsInterValTestCommon("-1").Should().Be(0);
+
+		[Fact]
+		public void SetMetricsInterValToNegative5S()
+			=> MetricsInterValTestCommon("-0.3s").Should().Be(0);
+
+		[Fact]
+		public void SetMetricsInterValToNegative5M()
+			=> MetricsInterValTestCommon("-5m").Should().Be(0);
+
+		[Fact]
+		public void SetMetricsInterValToNegative5Ms()
+			=> MetricsInterValTestCommon("-5ms").Should().Be(0);
+
+		private static double MetricsInterValTestCommon(string configValue)
+		{
+			Environment.SetEnvironmentVariable(ConfigConsts.EnvVarNames.MetricsInterval, configValue);
+			var testLogger = new TestLogger();
+			var config = new EnvironmentConfigurationReader(testLogger);
+			return config.MetricsIntervalInMillisecond;
+		}
+
+		public void Dispose()
+		{
+			Environment.SetEnvironmentVariable(ConfigConsts.EnvVarNames.ServerUrls, null);
+			Environment.SetEnvironmentVariable(ConfigConsts.EnvVarNames.MetricsInterval, null);
+		}
+	}
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource agent of type Elastic.Apm.ApmAgent, Leaked resource (output of Elastic.Apm.Tests.Mocks.TestAgentComponents::.ctor() at Line 40) of type Elastic.Apm.AgentComponents in method "Void EnvVarConfigTest.ServerUrlInvalidUrlLogTest()".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void EnvVarConfigTest.ServerUrlInvalidUrlLogTest()
+
+### File:
+test/Elastic.Apm.Tests/ConfigTest.cs
+
+### Key:
+ConfigTest.cs|ServerUrlInvalidUrlLogTest|DOTNET_RESOURCE_LEAK
+
+### Hash:
+f098404337617fd6f485df310805b8b2
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0478/instruction.md

@@ -0,0 +1,141 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** apm-agent-dotnet
+**Bug ID:** 23
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System.Text;
+using Elastic.Apm.Model.Payload;
+using Elastic.Apm.Report.Serialization;
+using Elastic.Apm.Tests.Mocks;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using Xunit;
+
+namespace Elastic.Apm.Tests
+{
+	/// <summary>
+	/// Contains tests related to json serialization.
+	/// </summary>
+	public class SerializationTests
+	{
+		/// <summary>
+		/// Tests the <see cref="StringTruncationValueResolver"/>. It serializes a transaction with Transaction.Name.Length > 1024
+		/// And makes sure that the Transaction.Name is truncated correctly.
+		/// </summary>
+		[Fact]
+		public void StringTruncationTest()
+		{
+			var sb = new StringBuilder();
+
+			for (var i = 0; i < 1200; i++)
+			{
+				sb.Append('a');
+			}
+
+			var transaction = new Transaction(new TestAgentComponents(), sb.ToString(), "test") { Duration = 1, Result = "fail" };
+
+			var settings = new JsonSerializerSettings { ContractResolver = new StringTruncationValueResolver() };
+			var json = JsonConvert.SerializeObject(transaction, settings);
+			var deserializedTransaction = JsonConvert.DeserializeObject(json) as JObject;
+
+			Assert.NotNull(deserializedTransaction);
+
+			Assert.Equal(Consts.PropertyMaxLength, deserializedTransaction["name"]?.Value<string>()?.Length);
+			Assert.Equal("...", deserializedTransaction["name"].Value<string>().Substring(1021, 3));
+			Assert.Equal("test", deserializedTransaction["type"].Value<string>());
+			Assert.Equal("fail", deserializedTransaction["result"].Value<string>());
+		}
+
+		/// <summary>
+		/// Test <see cref="NoTruncationInJsonNetAttribute"/>.
+		/// It creates an instance of <see cref="DummyType"/> with a <see cref="DummyType.StringProp"/> that has a string
+		/// which is longer than <see cref="Consts.PropertyMaxLength"/>.
+		/// Makes sure that the serialized instance still contains the whole string (aka it was not trimmed), since
+		/// the property pointing to the string was marked with <see cref="NoTruncationInJsonNetAttribute"/>.
+		/// </summary>
+		[Fact]
+		public void NoTruncateAttributeTest()
+		{
+			var sb = new StringBuilder();
+
+			for (var i = 0; i < 1200; i++)
+			{
+				sb.Append('a');
+			}
+
+			var dummyInstance = new DummyType { IntProp = 42, StringProp = sb.ToString() };
+
+			var settings = new JsonSerializerSettings { ContractResolver = new StringTruncationValueResolver() };
+			var json = JsonConvert.SerializeObject(dummyInstance, settings);
+			var deserializedDummyInstance = JsonConvert.DeserializeObject<DummyType>(json);
+
+			Assert.NotNull(deserializedDummyInstance);
+
+			Assert.Equal(sb.Length, deserializedDummyInstance.StringProp.Length);
+			Assert.Equal(sb.ToString(), deserializedDummyInstance.StringProp);
+			Assert.Equal(42, deserializedDummyInstance.IntProp);
+		}
+
+		private class DummyType
+		{
+			[NoTruncationInJsonNet]
+			public string StringProp { get; set; }
+
+			public int IntProp { get; set; }
+		}
+	}
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (output of Elastic.Apm.Tests.Mocks.TestAgentComponents::.ctor() at Line 30) of type Elastic.Apm.AgentComponents in method "Void SerializationTests.StringTruncationTest()".
+
+### Severity:
+ERROR
+
+### Procedure:
+Void SerializationTests.StringTruncationTest()
+
+### File:
+test/Elastic.Apm.Tests/SerializationTests.cs
+
+### Key:
+SerializationTests.cs|StringTruncationTest|DOTNET_RESOURCE_LEAK
+
+### Hash:
+a73134bb83a168e73665407c757efa63
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0502/instruction.md

@@ -0,0 +1,956 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** R2API
+**Bug ID:** 6
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using Mono.Cecil.Cil;
+using MonoMod.Utils;
+
+namespace R2API.Utils {
+    public static class Reflection {
+
+        private const BindingFlags AllFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static |
+                                              BindingFlags.Instance | BindingFlags.DeclaredOnly;
+
+        private delegate T GetDelegate<out T>(object instance);
+
+        private delegate void SetDelegate<in T>(object instance, T value);
+
+        //private delegate object CallDelegate(object instance, object[] arguments);
+
+        private delegate void SetDelegateRef<TInstance, in TValue>(ref TInstance instance, TValue value) where TInstance : struct;
+
+        private delegate T GetDelegateRef<TInstance, out T>(ref TInstance instance) where TInstance : struct;
+
+        #region Caches
+
+        // Field
+        private static readonly ConcurrentDictionary<(Type T, string name), FieldInfo> FieldCache =
+            new ConcurrentDictionary<(Type T, string name), FieldInfo>();
+
+        private static readonly ConcurrentDictionary<FieldInfo, Delegate> FieldGetDelegateCache =
+            new ConcurrentDictionary<FieldInfo, Delegate>();
+
+        private static readonly ConcurrentDictionary<FieldInfo, Delegate> FieldSetDelegateCache =
+            new ConcurrentDictionary<FieldInfo, Delegate>();
+
+
+        // Property
+        private static readonly ConcurrentDictionary<(Type T, string name), PropertyInfo> PropertyCache =
+            new ConcurrentDictionary<(Type T, string name), PropertyInfo>();
+
+        private static readonly ConcurrentDictionary<PropertyInfo, Delegate> PropertyGetDelegateCache =
+            new ConcurrentDictionary<PropertyInfo, Delegate>();
+
+        private static readonly ConcurrentDictionary<PropertyInfo, Delegate> PropertySetDelegateCache =
+            new ConcurrentDictionary<PropertyInfo, Delegate>();
+
+
+        // Method
+        private static readonly ConcurrentDictionary<(Type T, string name), MethodInfo> MethodCache =
+            new ConcurrentDictionary<(Type T, string name), MethodInfo>();
+
+        private static readonly ConcurrentDictionary<(Type T, string name, Type[] argumentTypes), MethodInfo>
+            OverloadedMethodCache =
+                new ConcurrentDictionary<(Type T, string name, Type[] argumentTypes), MethodInfo>();
+
+        private static readonly ConcurrentDictionary<MethodInfo, FastReflectionDelegate> DelegateCache =
+            new ConcurrentDictionary<MethodInfo, FastReflectionDelegate>();
+
+
+        // Class
+        private static readonly ConcurrentDictionary<(Type T, Type[] argumentTypes), ConstructorInfo> ConstructorCache =
+            new ConcurrentDictionary<(Type T, Type[] argumentTypes), ConstructorInfo>();
+
+        private static readonly ConcurrentDictionary<(Type T, string name), Type> NestedTypeCache =
+            new ConcurrentDictionary<(Type T, string name), Type>();
+
+
+        // Helper methods
+        private static TValue GetOrAddOnNull<TKey, TValue>(this ConcurrentDictionary<TKey, TValue> dict, TKey key,
+            Func<TKey, TValue> factory) {
+            if (dict.TryGetValue(key, out var val) && val != null)
+                return val;
+
+            return dict[key] = factory(key);
+        }
+
+        #endregion
+
+        #region Field
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo"/> of the type by name and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the field to find</param>
+        /// <returns></returns>
+        public static FieldInfo GetFieldCached<T>(string name) =>
+            typeof(T).GetFieldCached(name);
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo" /> of the type by name and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the field to find</param>
+        /// <returns></returns>
+        public static FieldInfo GetFieldCached(this Type T, string name) =>
+            FieldCache.GetOrAddOnNull((T, name), x => x.T.GetFieldFull(x.name)
+                ?? throw new Exception($"Could not find {nameof(FieldInfo)} on {T.FullName} with the name {name}"));
+
+
+        /// <summary>
+        /// Gets the value of the field on the object
+        /// </summary>
+        /// <typeparam name="TReturn">The type of the return value</typeparam>
+        /// <param name="fieldName">The name of the field to get the value of</param>
+        /// <param name="instance">The object to get the field's value from</param>
+        /// <returns></returns>
+        public static TReturn GetFieldValue<TReturn>(this object instance, string fieldName) =>
+            instance.GetType()
+                .GetFieldCached(fieldName)
+                .GetFieldGetDelegate<TReturn>()
+                (instance);
+
+        /// <summary>
+        /// Gets the value of the specified static field on the specified static type
+        /// </summary>
+        /// <typeparam name="TReturn">The return type</typeparam>
+        /// <param name="staticType">The name of the static field to get the value of</param>
+        /// <param name="fieldName">The type to get the specified static field's value on</param>
+        /// <returns></returns>
+        public static TReturn GetFieldValue<TReturn>(this Type staticType, string fieldName) =>
+            staticType
+                .GetFieldCached(fieldName)
+                .GetFieldGetDelegate<TReturn>()
+                (null);
+
+        /// <summary>
+        /// Sets the value of the specified field on the specified object; if the object is a struct use
+        /// <see cref="SetStructFieldValue{TInstance, TValue}(ref TInstance, string, TValue)"/> instead
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified field's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetFieldValue<TValue>(this object instance, string fieldName, TValue value) =>
+            instance.GetType()
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegate<TValue>()
+                (instance, value);
+
+        /// <summary>
+        /// Sets the value of the specified static field on the specified static type
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="staticType">The name of the static field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified static field's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetFieldValue<TValue>(this Type staticType, string fieldName, TValue value) =>
+            staticType
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegate<TValue>()
+                (null, value);
+
+        /// <summary>
+        /// Sets the value of the specified field on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the instance of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified field's value on</param>
+        /// <param name="value">The value to set the field to</param>
+        /// <returns></returns>
+        public static void SetStructFieldValue<TInstance, TValue>(this ref TInstance instance, string fieldName, TValue value)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegateRef<TInstance, TValue>()
+                (ref instance, value);
+
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo"/> on the specified <see cref="Type"/> and searches base types if not found.
+        /// </summary>
+        /// <param name="T">The <see cref="Type"/> to search and get base types from</param>
+        /// <param name="name">The name of the property to search for.</param>
+        /// <returns></returns>
+        private static FieldInfo GetFieldFull(this Type T, string name) {
+            while (T != null) {
+                var fieldInfo = T.GetField(name, AllFlags);
+                if (fieldInfo != null) {
+                    return fieldInfo;
+                }
+
+                T = T.BaseType;
+            }
+
+            return null;
+        }
+
+        private static T GetMemberFull<T>(this Type type, string name) where T : MemberInfo {
+            while (type != null) {
+                var fieldInfo = type.GetMember(name, AllFlags);
+                if (fieldInfo != null) {
+                    return (T)fieldInfo.First();
+                }
+
+                type = type.BaseType;
+            }
+
+            return null;
+        }
+
+        private static GetDelegate<TReturn> GetFieldGetDelegate<TReturn>(this FieldInfo field) =>
+            FieldGetDelegateCache.GetOrAdd(field, x => x.CreateGetDelegate<TReturn>())
+                .CastDelegate<GetDelegate<TReturn>>();
+
+        private static SetDelegate<TValue> GetFieldSetDelegate<TValue>(this FieldInfo field) =>
+            FieldSetDelegateCache.GetOrAdd(field, x => x.CreateSetDelegate<TValue>())
+                .CastDelegate<SetDelegate<TValue>>();
+
+        private static SetDelegateRef<TInstance, TValue> GetFieldSetDelegateRef<TInstance, TValue>(this FieldInfo field) where TInstance : struct =>
+            FieldSetDelegateCache.GetOrAdd(field, x => x.CreateSetDelegateRef<TInstance, TValue>())
+                .CastDelegate<SetDelegateRef<TInstance, TValue>>();
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets the <see cref="PropertyInfo"/> of the type by name
+        /// </summary>
+        /// <typeparam name="T">The type on which to find the property</typeparam>
+        /// <param name="name">The name of the property to get</param>
+        /// <returns></returns>
+        public static PropertyInfo GetPropertyCached<T>(string name) =>
+            typeof(T).GetPropertyCached(name);
+
+        /// <summary>
+        /// Gets the <see cref="PropertyInfo"/> of the type by name
+        /// </summary>
+        /// <param name="T">The type to get the <see cref="PropertyInfo"/> from</param>
+        /// <param name="name">The name of the property to get</param>
+        /// <returns></returns>
+        public static PropertyInfo GetPropertyCached(this Type T, string name) =>
+            PropertyCache.GetOrAddOnNull((T, name), x => x.T.GetProperty(x.name, AllFlags));
+
+        /// <summary>
+        /// Gets the value of the property on the specified object; if the object is a struct use
+        /// <see cref="GetStructPropertyValue{TInstance, TValue}(ref TInstance, string)"></see> instead
+        /// </summary>
+        /// <typeparam name="TReturn">The type of the return value</typeparam>
+        /// <param name="instance">The object to get the property's value from</param>
+        /// <param name="propName">The name of the field to get the value of</param>
+        /// <returns></returns>
+        public static TReturn GetPropertyValue<TReturn>(this object instance, string propName) =>
+            instance.GetType()
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegate<TReturn>()
+                (instance);
+
+        /// <summary>
+        /// Gets the value of the static property on the specified static type
+        /// </summary>
+        /// <typeparam name="TReturn">The return type</typeparam>
+        /// <param name="staticType">The name of the static field to get the value of</param>
+        /// <param name="propName">The type to get the specified static property's value on</param>
+        /// <returns></returns>
+        public static TReturn GetPropertyValue<TReturn>(this Type staticType, string propName) =>
+            staticType
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegate<TReturn>()
+                (null);
+
+        /// <summary>
+        /// Sets the value of the property on the specified class; if you're setting the property on a
+        /// struct use <see cref="SetStructPropertyValue{TInstance, TValue}(ref TInstance, string, TValue)"/> instead
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetPropertyValue<TValue>(this object instance, string propName, TValue value) =>
+            instance.GetType()
+                .GetPropertyCached(propName)?
+                .GetPropertySetDelegate<TValue>()
+                (instance, value);
+
+        /// <summary>
+        /// Sets the value of the static property on the specified static class
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="staticType">The name of the static field to set the value of</param>
+        /// <param name="propName">The type to set the specified static property's value on</param>
+        /// <param name="value">The value to set the property to</param>
+        /// <returns></returns>
+        public static void SetPropertyValue<TValue>(this Type staticType, string propName, TValue value) =>
+            staticType.GetPropertyCached(propName)?
+                .GetPropertySetDelegate<TValue>()
+                (null, value);
+
+        /// <summary>
+        /// Sets the value of the specified property on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the instance of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <param name="value">The value to set the property to</param>
+        /// <returns></returns>
+        public static void SetStructPropertyValue<TInstance, TValue>(this ref TInstance instance, string propName,
+            TValue value)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetPropertyCached(propName)
+                .GetPropertySetDelegateRef<TInstance, TValue>()
+                (ref instance, value);
+
+        /// <summary>
+        /// Gets the value of the specified property on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <returns></returns>
+        public static TValue GetStructPropertyValue<TInstance, TValue>(this ref TInstance instance, string propName)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegateRef<TInstance, TValue>()
+                (ref instance);
+
+        private static GetDelegate<TReturn> GetPropertyGetDelegate<TReturn>(this PropertyInfo property) =>
+            PropertyGetDelegateCache.GetOrAdd(property, prop => prop.CreateGetDelegate<TReturn>())
+                .CastDelegate<GetDelegate<TReturn>>();
+
+        private static GetDelegateRef<TInstance, TReturn> GetPropertyGetDelegateRef<TInstance, TReturn>(this PropertyInfo property)
+            where TInstance : struct =>
+            PropertyGetDelegateCache.GetOrAdd(property, prop => prop.CreateGetDelegate<TInstance, TReturn>())
+                .CastDelegate<GetDelegateRef<TInstance, TReturn>>();
+
+        private static SetDelegate<TValue> GetPropertySetDelegate<TValue>(this PropertyInfo property) =>
+            PropertySetDelegateCache.GetOrAdd(property, prop => prop.CreateSetDelegate<TValue>())
+                .CastDelegate<SetDelegate<TValue>>();
+
+        private static SetDelegateRef<TInstance, TValue> GetPropertySetDelegateRef<TInstance, TValue>(
+            this PropertyInfo property)
+            where TInstance : struct =>
+            PropertySetDelegateCache.GetOrAdd(property, prop => prop.CreateSetDelegateRef<TInstance, TValue>())
+                .CastDelegate<SetDelegateRef<TInstance, TValue>>();
+
+        #endregion
+
+        #region Method
+
+        /// <summary>
+        /// Gets the method on the specified type and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the method to find</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached<T>(string name) =>
+            typeof(T).GetMethodCached(name);
+
+        /// <summary>
+        /// Gets the method on the specified static type and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the method to find</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached(this Type T, string name) =>
+            MethodCache.GetOrAddOnNull((T, name), x => x.T.GetMethod(x.name, AllFlags)
+                ?? throw new Exception($"Could not find {nameof(MethodInfo)} on {T.FullName} with the name {name}"));
+
+        /// <summary>
+        /// Gets the method on the specified type and caches it. This overload is used when the method is ambiguous
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the method to find</param>
+        /// <param name="argumentTypes">The types of the argument</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached<T>(string name, Type[] argumentTypes) =>
+            typeof(T).GetMethodCached(name, argumentTypes);
+
+        /// <summary>
+        /// Gets the method on the specified static type and caches it. This overload is used when the method is ambiguous
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the method to find</param>
+        /// <param name="argumentTypes">The types of the argument</param>
+        public static MethodInfo GetMethodCached(this Type T, string name, Type[] argumentTypes) =>
+            OverloadedMethodCache.GetOrAddOnNull((T, name, argumentTypes),
+                x => x.T.GetMethod(x.name, AllFlags, null, x.argumentTypes, null)
+                     ?? throw new Exception($"Could not find {nameof(MethodInfo)} on {T.FullName} with the name {name} and arguments: " +
+                                            $"{string.Join(",", argumentTypes.Select(a => a.FullName))}"));
+
+        /// <summary>
+        /// Invoke a method on the specified object by name
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this object instance, string methodName) =>
+            instance.InvokeMethod<TReturn>(methodName, null);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this Type staticType, string methodName) =>
+            staticType.InvokeMethod<TReturn>(methodName, null);
+
+        /// <summary>
+        /// Invoke a method on the specified object by name
+        /// </summary>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        public static void InvokeMethod(this object instance, string methodName) =>
+            instance.InvokeMethod<object>(methodName);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name
+        /// </summary>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        public static void InvokeMethod(this Type staticType, string methodName) =>
+            staticType.InvokeMethod<object>(methodName);
+
+        /// <summary>
+        /// Invoke a method on the specified object by name with parameters
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this object instance, string methodName,
+            params object[] methodParams) {
+            var methodInfo = (methodParams == null
+                    ? instance.GetType()
+                        .GetMethodCached(methodName)
+                    : instance.GetType()
+                        .GetMethodCached(methodName, methodParams.Select(x => x.GetType()).ToArray())
+                ) ?? throw new Exception($"Could not find method on type {instance.GetType()} with the name of {methodName} with the arguments specified.");
+
+            return (TReturn)methodInfo.GetMethodDelegateCached()(instance, methodParams);
+        }
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name with parameters
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams">The method parameters</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this Type staticType, string methodName,
+            params object[] methodParams) {
+            var methodInfo = (methodParams == null
+                ? staticType
+                    .GetMethodCached(methodName)
+                : staticType
+                    .GetMethodCached(methodName, methodParams.Select(x => x.GetType()).ToArray()))
+                ?? throw new Exception($"Could not find method on type {staticType} with the name of {methodName} with the arguments specified.");
+
+            return (TReturn)methodInfo.GetMethodDelegateCached()(null, methodParams);
+        }
+
+        /// <summary>
+        /// Invoke a method on the specified object by name with parameters
+        /// </summary>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        public static void InvokeMethod(this object instance, string methodName, params object[] methodParams) =>
+            instance.InvokeMethod<object>(methodName, methodParams);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name with parameters
+        /// </summary>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        public static void InvokeMethod(this Type staticType, string methodName, params object[] methodParams) =>
+            staticType.InvokeMethod<object>(methodName, methodParams);
+
+
+        private static FastReflectionDelegate GetMethodDelegateCached(this MethodInfo methodInfo) =>
+            DelegateCache.GetOrAdd(methodInfo, method => method.CreateFastDelegate());
+
+        #endregion
+
+        #region Class
+
+        /// <summary>
+        /// Gets the constructor on the specified type with specified arguments and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="argumentTypes">The types of the arguments on the constructor to find</param>
+        /// <returns></returns>
+        public static ConstructorInfo GetConstructorCached<T>(Type[] argumentTypes) =>
+            GetConstructorCached(typeof(T), argumentTypes);
+
+        /// <summary>
+        /// Gets the constructor on the specified static type with specified arguments and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="argumentTypes">The types of the arguments on the constructor to find</param>
+        /// <returns></returns>
+        public static ConstructorInfo GetConstructorCached(this Type T, Type[] argumentTypes) =>
+            ConstructorCache.GetOrAddOnNull((T, argumentTypes), x => x.T.GetConstructor(x.argumentTypes)
+                ?? throw new Exception($"Could not find {nameof(ConstructorInfo)} on {T.FullName} with the arguments {string.Join(",", argumentTypes.Select(a => a.FullName))}"));
+
+        /// <summary>
+        /// Gets the nested type on the specified type
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedType<T>(string name) =>
+            typeof(T).GetNestedTypeCached(name);
+
+        /// <summary>
+        /// Gets the nested type on the specified type
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedTypeCached<T>(string name) =>
+            typeof(T).GetNestedTypeCached(name);
+
+        /// <summary>
+        /// Gets the nested type on the specified static type
+        /// </summary>
+        /// <param name="T">The static type to search</param>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedTypeCached(this Type T, string name) =>
+            NestedTypeCache.GetOrAddOnNull((T, name), x => x.T.GetNestedType(x.name, AllFlags)
+                ?? throw new Exception($"Could not find nested {nameof(Type)} on {T.FullName} with the name {name}"));
+
+        /// <summary>
+        /// Instatiates the specified type
+        /// </summary>
+        /// <param name="type">The type to instantiate</param>
+        /// <returns></returns>
+        public static object Instantiate(this Type type) =>
+            Activator.CreateInstance(type, true);
+
+        /// <summary>
+        /// Instatiates the specified type with specified constructor arguments
+        /// </summary>
+        /// <param name="type">The type to instantiate</param>
+        /// <param name="constructorArguments">The constructor arguments</param>
+        /// <returns></returns>
+        public static object Instantiate(this Type type, params object[] constructorArguments) =>
+            type.GetConstructorCached(constructorArguments.Select(x => x.GetType()).ToArray())
+                .Invoke(constructorArguments);
+
+        /// <summary>
+        /// Instantiates the specified generic type
+        /// </summary>
+        /// <typeparam name="TClass">The type to instantiate</typeparam>
+        /// <param name="typeArgument">The type of the generic type argument</param>
+        /// <returns></returns>
+        public static object InstantiateGeneric<TClass>(this Type typeArgument) =>
+            typeof(TClass).MakeGenericType(typeArgument).Instantiate();
+
+        /// <summary>
+        /// Instantiates the specified generic types
+        /// </summary>
+        /// <typeparam name="TClass">The type to instantiate</typeparam>
+        /// <param name="typeArgument">The types of the generic type arguments</param>
+        /// <returns></returns>
+        public static object InstantiateGeneric<TClass>(this Type[] typeArgument) =>
+            typeof(TClass).MakeGenericType(typeArgument).Instantiate();
+
+        /// <summary>
+        /// Instantiates a list of the specified generic type
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        public static IList InstantiateList(this Type type) =>
+            (IList)typeof(List<>).MakeGenericType(type).Instantiate();
+
+        #endregion
+
+        #region Fast Reflection
+
+        private static GetDelegate<TReturn> CreateGetDelegate<TReturn>(this FieldInfo field) {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(field.FieldType)) {
+                throw new Exception($"Field type {field.FieldType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+
+            var method = new DynamicMethodDefinition($"{field} Getter", typeof(TReturn), new[] { typeof(object) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+                if (field.DeclaringType.GetTypeInfo().IsValueType) {
+                    il.Emit(OpCodes.Unbox_Any, field.DeclaringType);
+                }
+            }
+
+            il.Emit(!field.IsStatic ? OpCodes.Ldfld : OpCodes.Ldsfld, field);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegate<TReturn>)method.Generate().CreateDelegate(typeof(GetDelegate<TReturn>));
+        }
+
+        private static SetDelegate<TValue> CreateSetDelegate<TValue>(this FieldInfo field) {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (!field.FieldType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {field.FieldType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{field} Setter", typeof(void),
+                new[] { typeof(object), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(!field.IsStatic ? OpCodes.Stfld : OpCodes.Stsfld, field);
+
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegate<TValue>)method.Generate().CreateDelegate(typeof(SetDelegate<TValue>));
+        }
+
+        private static SetDelegateRef<TInstance, TValue> CreateSetDelegateRef<TInstance, TValue>(this FieldInfo field) where TInstance : struct {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (field.FieldType != typeof(TValue)) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {field.FieldType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{field} SetterByRef", typeof(void),
+                new[] { typeof(TInstance).MakeByRefType(), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(!field.IsStatic ? OpCodes.Stfld : OpCodes.Stsfld, field);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegateRef<TInstance, TValue>)method.Generate().CreateDelegate(typeof(SetDelegateRef<TInstance, TValue>));
+        }
+
+        private static GetDelegate<TReturn> CreateGetDelegate<TReturn>(this PropertyInfo property) {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(property.PropertyType)) {
+                throw new Exception($"Field type {property.PropertyType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Getter", typeof(TReturn), new[] { typeof(object) });
+            var il = method.GetILProcessor();
+
+            var getMethod = property.GetGetMethod(nonPublic: true);
+
+            if (!getMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Call, getMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegate<TReturn>)method.Generate().CreateDelegate(typeof(GetDelegate<TReturn>));
+        }
+
+        private static GetDelegateRef<TInstance, TReturn> CreateGetDelegate<TInstance, TReturn>(this PropertyInfo property) where TInstance : struct {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(property.PropertyType)) {
+                throw new Exception($"Field type {property.PropertyType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Getter", typeof(TReturn), new[] { typeof(TInstance).MakeByRefType() });
+            var il = method.GetILProcessor();
+
+            // Cache this as well?
+            var getMethod = property.GetGetMethod(nonPublic: true);
+
+            if (!getMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Call, getMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegateRef<TInstance, TReturn>)method.Generate().CreateDelegate(typeof(GetDelegateRef<TInstance, TReturn>));
+        }
+
+
+        private static SetDelegate<TValue> CreateSetDelegate<TValue>(this PropertyInfo property) {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!property.PropertyType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {property.PropertyType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Setter", typeof(void),
+                new[] { typeof(object), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            var setMethod = property.GetSetMethod(true);
+
+            if (!setMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(OpCodes.Call, setMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegate<TValue>)method.Generate().CreateDelegate(typeof(SetDelegate<TValue>));
+        }
+
+        private static SetDelegateRef<TInstance, TValue> CreateSetDelegateRef<TInstance, TValue>(this PropertyInfo property) where TInstance : struct {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!property.PropertyType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {property.PropertyType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} SetterByRef", typeof(void),
+                new[] { typeof(TInstance).MakeByRefType(), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            var setMethod = property.GetSetMethod(true);
+
+            if (!setMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(OpCodes.Call, setMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegateRef<TInstance, TValue>)method.Generate().CreateDelegate(typeof(SetDelegateRef<TInstance, TValue>));
+        }
+
+        // Partial hack from https://github.com/0x0ade/MonoMod/blob/master/MonoMod.Utils/FastReflectionHelper.cs
+        // to get fast call delegates
+        //private static CallDelegate GenerateCallDelegate(this MethodInfo method) {
+        //    if (method == null) {
+        //        throw new ArgumentException("Method cannot be null.", nameof(method));
+        //    }
+
+        //    var dmd = new DynamicMethodDefinition(
+        //        $"CallDelegate<{method.Name}>", typeof(object), new[] { typeof(object), typeof(object[]) });
+        //    var il = dmd.GetILProcessor();
+
+        //    var args = method.GetParameters();
+
+        //    if (!method.IsStatic) {
+        //        il.Emit(OpCodes.Ldarg_0);
+        //        if (method.DeclaringType.GetTypeInfo().IsValueType) {
+        //            il.Emit(OpCodes.Unbox_Any, method.DeclaringType);
+        //        }
+        //    }
+
+        //    for (var i = 0; i < args.Length; i++) {
+        //        var argType = args[i].ParameterType;
+        //        var argIsByRef = argType.IsByRef;
+        //        if (argIsByRef)
+        //            argType = argType.GetElementType();
+        //        var argIsValueType = argType.GetTypeInfo().IsValueType;
+
+        //        if (argIsByRef && argIsValueType) {
+        //            // Used later when storing back the reference to the new box in the array.
+        //            il.Emit(OpCodes.Ldarg_1);
+        //            il.EmitFast_Ldc_I4(i);
+        //        }
+
+        //        il.Emit(OpCodes.Ldarg_1);
+        //        il.EmitFast_Ldc_I4(i);
+
+        //        if (argIsByRef && !argIsValueType) {
+        //            il.Emit(OpCodes.Ldelema, typeof(object));
+        //        }
+        //        else {
+        //            il.Emit(OpCodes.Ldelem_Ref);
+        //            if (!argIsValueType) continue;
+        //            il.Emit(!argIsByRef ? OpCodes.Unbox_Any : OpCodes.Unbox, argType);
+        //        }
+        //    }
+
+        //    if (method.IsFinal || !method.IsVirtual) {
+        //        il.Emit(OpCodes.Call, method);
+        //    }
+        //    else {
+        //        il.Emit(OpCodes.Callvirt, method);
+        //    }
+
+        //    var returnType = method.IsConstructor ? method.DeclaringType : method.ReturnType;
+        //    if (returnType != typeof(void)) {
+        //        if (returnType.GetTypeInfo().IsValueType) {
+        //            il.Emit(OpCodes.Box, returnType);
+        //        }
+        //    }
+        //    else {
+        //        il.Emit(OpCodes.Ldnull);
+        //    }
+
+        //    il.Emit(OpCodes.Ret);
+
+        //    return (CallDelegate) dmd.Generate().CreateDelegate(typeof(CallDelegate));
+        //}
+
+        // https://github.com/0x0ade/MonoMod/blob/master/MonoMod.Utils/FastReflectionHelper.cs
+        public static void EmitFast_Ldc_I4(this ILProcessor il, int value) {
+            switch (value) {
+                case -1:
+                    il.Emit(OpCodes.Ldc_I4_M1);
+                    return;
+                case 0:
+                    il.Emit(OpCodes.Ldc_I4_0);
+                    return;
+                case 1:
+                    il.Emit(OpCodes.Ldc_I4_1);
+                    return;
+                case 2:
+                    il.Emit(OpCodes.Ldc_I4_2);
+                    return;
+                case 3:
+                    il.Emit(OpCodes.Ldc_I4_3);
+                    return;
+                case 4:
+                    il.Emit(OpCodes.Ldc_I4_4);
+                    return;
+                case 5:
+                    il.Emit(OpCodes.Ldc_I4_5);
+                    return;
+                case 6:
+                    il.Emit(OpCodes.Ldc_I4_6);
+                    return;
+                case 7:
+                    il.Emit(OpCodes.Ldc_I4_7);
+                    return;
+                case 8:
+                    il.Emit(OpCodes.Ldc_I4_8);
+                    return;
+            }
+
+            if (value > -129 && value < 128)
+                il.Emit(OpCodes.Ldc_I4_S, (sbyte)value);
+            else
+                il.Emit(OpCodes.Ldc_I4, value);
+        }
+
+        public static byte ReadLocalIndex(OpCode opCode, object operand) {
+            if (opCode == OpCodes.Ldloc_0 || opCode == OpCodes.Stloc_0) {
+                return 0;
+            }
+            if (opCode == OpCodes.Ldloc_1 || opCode == OpCodes.Stloc_1) {
+                return 1;
+            }
+            if (opCode == OpCodes.Ldloc_2 || opCode == OpCodes.Stloc_2) {
+                return 2;
+            }
+            if (opCode == OpCodes.Ldloc_3 || opCode == OpCodes.Stloc_3) {
+                return 3;
+            }
+            if (opCode == OpCodes.Ldloc_S || opCode == OpCodes.Stloc_S) {
+                return (byte)operand;
+            }
+
+            throw new Exception($"Could not read index for opcode and operand: {opCode} - {operand}");
+        }
+
+        #endregion
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource method of type MonoMod.Utils.DynamicMethodDefinition in method "Reflection$SetDelegate`1<T> Reflection.CreateSetDelegate(FieldInfo)".
+
+### Severity:
+ERROR
+
+### Procedure:
+Reflection$SetDelegate`1<T> Reflection.CreateSetDelegate(FieldInfo)
+
+### File:
+R2API/Utils/Reflection.cs
+
+### Key:
+Reflection.cs|CreateSetDelegate|DOTNET_RESOURCE_LEAK
+
+### Hash:
+d76a985c5e6960c1e71552cad3ba809d
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0503/instruction.md

@@ -0,0 +1,956 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** R2API
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using Mono.Cecil.Cil;
+using MonoMod.Utils;
+
+namespace R2API.Utils {
+    public static class Reflection {
+
+        private const BindingFlags AllFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static |
+                                              BindingFlags.Instance | BindingFlags.DeclaredOnly;
+
+        private delegate T GetDelegate<out T>(object instance);
+
+        private delegate void SetDelegate<in T>(object instance, T value);
+
+        //private delegate object CallDelegate(object instance, object[] arguments);
+
+        private delegate void SetDelegateRef<TInstance, in TValue>(ref TInstance instance, TValue value) where TInstance : struct;
+
+        private delegate T GetDelegateRef<TInstance, out T>(ref TInstance instance) where TInstance : struct;
+
+        #region Caches
+
+        // Field
+        private static readonly ConcurrentDictionary<(Type T, string name), FieldInfo> FieldCache =
+            new ConcurrentDictionary<(Type T, string name), FieldInfo>();
+
+        private static readonly ConcurrentDictionary<FieldInfo, Delegate> FieldGetDelegateCache =
+            new ConcurrentDictionary<FieldInfo, Delegate>();
+
+        private static readonly ConcurrentDictionary<FieldInfo, Delegate> FieldSetDelegateCache =
+            new ConcurrentDictionary<FieldInfo, Delegate>();
+
+
+        // Property
+        private static readonly ConcurrentDictionary<(Type T, string name), PropertyInfo> PropertyCache =
+            new ConcurrentDictionary<(Type T, string name), PropertyInfo>();
+
+        private static readonly ConcurrentDictionary<PropertyInfo, Delegate> PropertyGetDelegateCache =
+            new ConcurrentDictionary<PropertyInfo, Delegate>();
+
+        private static readonly ConcurrentDictionary<PropertyInfo, Delegate> PropertySetDelegateCache =
+            new ConcurrentDictionary<PropertyInfo, Delegate>();
+
+
+        // Method
+        private static readonly ConcurrentDictionary<(Type T, string name), MethodInfo> MethodCache =
+            new ConcurrentDictionary<(Type T, string name), MethodInfo>();
+
+        private static readonly ConcurrentDictionary<(Type T, string name, Type[] argumentTypes), MethodInfo>
+            OverloadedMethodCache =
+                new ConcurrentDictionary<(Type T, string name, Type[] argumentTypes), MethodInfo>();
+
+        private static readonly ConcurrentDictionary<MethodInfo, FastReflectionDelegate> DelegateCache =
+            new ConcurrentDictionary<MethodInfo, FastReflectionDelegate>();
+
+
+        // Class
+        private static readonly ConcurrentDictionary<(Type T, Type[] argumentTypes), ConstructorInfo> ConstructorCache =
+            new ConcurrentDictionary<(Type T, Type[] argumentTypes), ConstructorInfo>();
+
+        private static readonly ConcurrentDictionary<(Type T, string name), Type> NestedTypeCache =
+            new ConcurrentDictionary<(Type T, string name), Type>();
+
+
+        // Helper methods
+        private static TValue GetOrAddOnNull<TKey, TValue>(this ConcurrentDictionary<TKey, TValue> dict, TKey key,
+            Func<TKey, TValue> factory) {
+            if (dict.TryGetValue(key, out var val) && val != null)
+                return val;
+
+            return dict[key] = factory(key);
+        }
+
+        #endregion
+
+        #region Field
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo"/> of the type by name and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the field to find</param>
+        /// <returns></returns>
+        public static FieldInfo GetFieldCached<T>(string name) =>
+            typeof(T).GetFieldCached(name);
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo" /> of the type by name and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the field to find</param>
+        /// <returns></returns>
+        public static FieldInfo GetFieldCached(this Type T, string name) =>
+            FieldCache.GetOrAddOnNull((T, name), x => x.T.GetFieldFull(x.name)
+                ?? throw new Exception($"Could not find {nameof(FieldInfo)} on {T.FullName} with the name {name}"));
+
+
+        /// <summary>
+        /// Gets the value of the field on the object
+        /// </summary>
+        /// <typeparam name="TReturn">The type of the return value</typeparam>
+        /// <param name="fieldName">The name of the field to get the value of</param>
+        /// <param name="instance">The object to get the field's value from</param>
+        /// <returns></returns>
+        public static TReturn GetFieldValue<TReturn>(this object instance, string fieldName) =>
+            instance.GetType()
+                .GetFieldCached(fieldName)
+                .GetFieldGetDelegate<TReturn>()
+                (instance);
+
+        /// <summary>
+        /// Gets the value of the specified static field on the specified static type
+        /// </summary>
+        /// <typeparam name="TReturn">The return type</typeparam>
+        /// <param name="staticType">The name of the static field to get the value of</param>
+        /// <param name="fieldName">The type to get the specified static field's value on</param>
+        /// <returns></returns>
+        public static TReturn GetFieldValue<TReturn>(this Type staticType, string fieldName) =>
+            staticType
+                .GetFieldCached(fieldName)
+                .GetFieldGetDelegate<TReturn>()
+                (null);
+
+        /// <summary>
+        /// Sets the value of the specified field on the specified object; if the object is a struct use
+        /// <see cref="SetStructFieldValue{TInstance, TValue}(ref TInstance, string, TValue)"/> instead
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified field's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetFieldValue<TValue>(this object instance, string fieldName, TValue value) =>
+            instance.GetType()
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegate<TValue>()
+                (instance, value);
+
+        /// <summary>
+        /// Sets the value of the specified static field on the specified static type
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="staticType">The name of the static field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified static field's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetFieldValue<TValue>(this Type staticType, string fieldName, TValue value) =>
+            staticType
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegate<TValue>()
+                (null, value);
+
+        /// <summary>
+        /// Sets the value of the specified field on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the instance of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified field's value on</param>
+        /// <param name="value">The value to set the field to</param>
+        /// <returns></returns>
+        public static void SetStructFieldValue<TInstance, TValue>(this ref TInstance instance, string fieldName, TValue value)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegateRef<TInstance, TValue>()
+                (ref instance, value);
+
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo"/> on the specified <see cref="Type"/> and searches base types if not found.
+        /// </summary>
+        /// <param name="T">The <see cref="Type"/> to search and get base types from</param>
+        /// <param name="name">The name of the property to search for.</param>
+        /// <returns></returns>
+        private static FieldInfo GetFieldFull(this Type T, string name) {
+            while (T != null) {
+                var fieldInfo = T.GetField(name, AllFlags);
+                if (fieldInfo != null) {
+                    return fieldInfo;
+                }
+
+                T = T.BaseType;
+            }
+
+            return null;
+        }
+
+        private static T GetMemberFull<T>(this Type type, string name) where T : MemberInfo {
+            while (type != null) {
+                var fieldInfo = type.GetMember(name, AllFlags);
+                if (fieldInfo != null) {
+                    return (T)fieldInfo.First();
+                }
+
+                type = type.BaseType;
+            }
+
+            return null;
+        }
+
+        private static GetDelegate<TReturn> GetFieldGetDelegate<TReturn>(this FieldInfo field) =>
+            FieldGetDelegateCache.GetOrAdd(field, x => x.CreateGetDelegate<TReturn>())
+                .CastDelegate<GetDelegate<TReturn>>();
+
+        private static SetDelegate<TValue> GetFieldSetDelegate<TValue>(this FieldInfo field) =>
+            FieldSetDelegateCache.GetOrAdd(field, x => x.CreateSetDelegate<TValue>())
+                .CastDelegate<SetDelegate<TValue>>();
+
+        private static SetDelegateRef<TInstance, TValue> GetFieldSetDelegateRef<TInstance, TValue>(this FieldInfo field) where TInstance : struct =>
+            FieldSetDelegateCache.GetOrAdd(field, x => x.CreateSetDelegateRef<TInstance, TValue>())
+                .CastDelegate<SetDelegateRef<TInstance, TValue>>();
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets the <see cref="PropertyInfo"/> of the type by name
+        /// </summary>
+        /// <typeparam name="T">The type on which to find the property</typeparam>
+        /// <param name="name">The name of the property to get</param>
+        /// <returns></returns>
+        public static PropertyInfo GetPropertyCached<T>(string name) =>
+            typeof(T).GetPropertyCached(name);
+
+        /// <summary>
+        /// Gets the <see cref="PropertyInfo"/> of the type by name
+        /// </summary>
+        /// <param name="T">The type to get the <see cref="PropertyInfo"/> from</param>
+        /// <param name="name">The name of the property to get</param>
+        /// <returns></returns>
+        public static PropertyInfo GetPropertyCached(this Type T, string name) =>
+            PropertyCache.GetOrAddOnNull((T, name), x => x.T.GetProperty(x.name, AllFlags));
+
+        /// <summary>
+        /// Gets the value of the property on the specified object; if the object is a struct use
+        /// <see cref="GetStructPropertyValue{TInstance, TValue}(ref TInstance, string)"></see> instead
+        /// </summary>
+        /// <typeparam name="TReturn">The type of the return value</typeparam>
+        /// <param name="instance">The object to get the property's value from</param>
+        /// <param name="propName">The name of the field to get the value of</param>
+        /// <returns></returns>
+        public static TReturn GetPropertyValue<TReturn>(this object instance, string propName) =>
+            instance.GetType()
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegate<TReturn>()
+                (instance);
+
+        /// <summary>
+        /// Gets the value of the static property on the specified static type
+        /// </summary>
+        /// <typeparam name="TReturn">The return type</typeparam>
+        /// <param name="staticType">The name of the static field to get the value of</param>
+        /// <param name="propName">The type to get the specified static property's value on</param>
+        /// <returns></returns>
+        public static TReturn GetPropertyValue<TReturn>(this Type staticType, string propName) =>
+            staticType
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegate<TReturn>()
+                (null);
+
+        /// <summary>
+        /// Sets the value of the property on the specified class; if you're setting the property on a
+        /// struct use <see cref="SetStructPropertyValue{TInstance, TValue}(ref TInstance, string, TValue)"/> instead
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetPropertyValue<TValue>(this object instance, string propName, TValue value) =>
+            instance.GetType()
+                .GetPropertyCached(propName)?
+                .GetPropertySetDelegate<TValue>()
+                (instance, value);
+
+        /// <summary>
+        /// Sets the value of the static property on the specified static class
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="staticType">The name of the static field to set the value of</param>
+        /// <param name="propName">The type to set the specified static property's value on</param>
+        /// <param name="value">The value to set the property to</param>
+        /// <returns></returns>
+        public static void SetPropertyValue<TValue>(this Type staticType, string propName, TValue value) =>
+            staticType.GetPropertyCached(propName)?
+                .GetPropertySetDelegate<TValue>()
+                (null, value);
+
+        /// <summary>
+        /// Sets the value of the specified property on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the instance of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <param name="value">The value to set the property to</param>
+        /// <returns></returns>
+        public static void SetStructPropertyValue<TInstance, TValue>(this ref TInstance instance, string propName,
+            TValue value)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetPropertyCached(propName)
+                .GetPropertySetDelegateRef<TInstance, TValue>()
+                (ref instance, value);
+
+        /// <summary>
+        /// Gets the value of the specified property on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <returns></returns>
+        public static TValue GetStructPropertyValue<TInstance, TValue>(this ref TInstance instance, string propName)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegateRef<TInstance, TValue>()
+                (ref instance);
+
+        private static GetDelegate<TReturn> GetPropertyGetDelegate<TReturn>(this PropertyInfo property) =>
+            PropertyGetDelegateCache.GetOrAdd(property, prop => prop.CreateGetDelegate<TReturn>())
+                .CastDelegate<GetDelegate<TReturn>>();
+
+        private static GetDelegateRef<TInstance, TReturn> GetPropertyGetDelegateRef<TInstance, TReturn>(this PropertyInfo property)
+            where TInstance : struct =>
+            PropertyGetDelegateCache.GetOrAdd(property, prop => prop.CreateGetDelegate<TInstance, TReturn>())
+                .CastDelegate<GetDelegateRef<TInstance, TReturn>>();
+
+        private static SetDelegate<TValue> GetPropertySetDelegate<TValue>(this PropertyInfo property) =>
+            PropertySetDelegateCache.GetOrAdd(property, prop => prop.CreateSetDelegate<TValue>())
+                .CastDelegate<SetDelegate<TValue>>();
+
+        private static SetDelegateRef<TInstance, TValue> GetPropertySetDelegateRef<TInstance, TValue>(
+            this PropertyInfo property)
+            where TInstance : struct =>
+            PropertySetDelegateCache.GetOrAdd(property, prop => prop.CreateSetDelegateRef<TInstance, TValue>())
+                .CastDelegate<SetDelegateRef<TInstance, TValue>>();
+
+        #endregion
+
+        #region Method
+
+        /// <summary>
+        /// Gets the method on the specified type and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the method to find</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached<T>(string name) =>
+            typeof(T).GetMethodCached(name);
+
+        /// <summary>
+        /// Gets the method on the specified static type and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the method to find</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached(this Type T, string name) =>
+            MethodCache.GetOrAddOnNull((T, name), x => x.T.GetMethod(x.name, AllFlags)
+                ?? throw new Exception($"Could not find {nameof(MethodInfo)} on {T.FullName} with the name {name}"));
+
+        /// <summary>
+        /// Gets the method on the specified type and caches it. This overload is used when the method is ambiguous
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the method to find</param>
+        /// <param name="argumentTypes">The types of the argument</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached<T>(string name, Type[] argumentTypes) =>
+            typeof(T).GetMethodCached(name, argumentTypes);
+
+        /// <summary>
+        /// Gets the method on the specified static type and caches it. This overload is used when the method is ambiguous
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the method to find</param>
+        /// <param name="argumentTypes">The types of the argument</param>
+        public static MethodInfo GetMethodCached(this Type T, string name, Type[] argumentTypes) =>
+            OverloadedMethodCache.GetOrAddOnNull((T, name, argumentTypes),
+                x => x.T.GetMethod(x.name, AllFlags, null, x.argumentTypes, null)
+                     ?? throw new Exception($"Could not find {nameof(MethodInfo)} on {T.FullName} with the name {name} and arguments: " +
+                                            $"{string.Join(",", argumentTypes.Select(a => a.FullName))}"));
+
+        /// <summary>
+        /// Invoke a method on the specified object by name
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this object instance, string methodName) =>
+            instance.InvokeMethod<TReturn>(methodName, null);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this Type staticType, string methodName) =>
+            staticType.InvokeMethod<TReturn>(methodName, null);
+
+        /// <summary>
+        /// Invoke a method on the specified object by name
+        /// </summary>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        public static void InvokeMethod(this object instance, string methodName) =>
+            instance.InvokeMethod<object>(methodName);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name
+        /// </summary>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        public static void InvokeMethod(this Type staticType, string methodName) =>
+            staticType.InvokeMethod<object>(methodName);
+
+        /// <summary>
+        /// Invoke a method on the specified object by name with parameters
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this object instance, string methodName,
+            params object[] methodParams) {
+            var methodInfo = (methodParams == null
+                    ? instance.GetType()
+                        .GetMethodCached(methodName)
+                    : instance.GetType()
+                        .GetMethodCached(methodName, methodParams.Select(x => x.GetType()).ToArray())
+                ) ?? throw new Exception($"Could not find method on type {instance.GetType()} with the name of {methodName} with the arguments specified.");
+
+            return (TReturn)methodInfo.GetMethodDelegateCached()(instance, methodParams);
+        }
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name with parameters
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams">The method parameters</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this Type staticType, string methodName,
+            params object[] methodParams) {
+            var methodInfo = (methodParams == null
+                ? staticType
+                    .GetMethodCached(methodName)
+                : staticType
+                    .GetMethodCached(methodName, methodParams.Select(x => x.GetType()).ToArray()))
+                ?? throw new Exception($"Could not find method on type {staticType} with the name of {methodName} with the arguments specified.");
+
+            return (TReturn)methodInfo.GetMethodDelegateCached()(null, methodParams);
+        }
+
+        /// <summary>
+        /// Invoke a method on the specified object by name with parameters
+        /// </summary>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        public static void InvokeMethod(this object instance, string methodName, params object[] methodParams) =>
+            instance.InvokeMethod<object>(methodName, methodParams);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name with parameters
+        /// </summary>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        public static void InvokeMethod(this Type staticType, string methodName, params object[] methodParams) =>
+            staticType.InvokeMethod<object>(methodName, methodParams);
+
+
+        private static FastReflectionDelegate GetMethodDelegateCached(this MethodInfo methodInfo) =>
+            DelegateCache.GetOrAdd(methodInfo, method => method.CreateFastDelegate());
+
+        #endregion
+
+        #region Class
+
+        /// <summary>
+        /// Gets the constructor on the specified type with specified arguments and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="argumentTypes">The types of the arguments on the constructor to find</param>
+        /// <returns></returns>
+        public static ConstructorInfo GetConstructorCached<T>(Type[] argumentTypes) =>
+            GetConstructorCached(typeof(T), argumentTypes);
+
+        /// <summary>
+        /// Gets the constructor on the specified static type with specified arguments and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="argumentTypes">The types of the arguments on the constructor to find</param>
+        /// <returns></returns>
+        public static ConstructorInfo GetConstructorCached(this Type T, Type[] argumentTypes) =>
+            ConstructorCache.GetOrAddOnNull((T, argumentTypes), x => x.T.GetConstructor(x.argumentTypes)
+                ?? throw new Exception($"Could not find {nameof(ConstructorInfo)} on {T.FullName} with the arguments {string.Join(",", argumentTypes.Select(a => a.FullName))}"));
+
+        /// <summary>
+        /// Gets the nested type on the specified type
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedType<T>(string name) =>
+            typeof(T).GetNestedTypeCached(name);
+
+        /// <summary>
+        /// Gets the nested type on the specified type
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedTypeCached<T>(string name) =>
+            typeof(T).GetNestedTypeCached(name);
+
+        /// <summary>
+        /// Gets the nested type on the specified static type
+        /// </summary>
+        /// <param name="T">The static type to search</param>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedTypeCached(this Type T, string name) =>
+            NestedTypeCache.GetOrAddOnNull((T, name), x => x.T.GetNestedType(x.name, AllFlags)
+                ?? throw new Exception($"Could not find nested {nameof(Type)} on {T.FullName} with the name {name}"));
+
+        /// <summary>
+        /// Instatiates the specified type
+        /// </summary>
+        /// <param name="type">The type to instantiate</param>
+        /// <returns></returns>
+        public static object Instantiate(this Type type) =>
+            Activator.CreateInstance(type, true);
+
+        /// <summary>
+        /// Instatiates the specified type with specified constructor arguments
+        /// </summary>
+        /// <param name="type">The type to instantiate</param>
+        /// <param name="constructorArguments">The constructor arguments</param>
+        /// <returns></returns>
+        public static object Instantiate(this Type type, params object[] constructorArguments) =>
+            type.GetConstructorCached(constructorArguments.Select(x => x.GetType()).ToArray())
+                .Invoke(constructorArguments);
+
+        /// <summary>
+        /// Instantiates the specified generic type
+        /// </summary>
+        /// <typeparam name="TClass">The type to instantiate</typeparam>
+        /// <param name="typeArgument">The type of the generic type argument</param>
+        /// <returns></returns>
+        public static object InstantiateGeneric<TClass>(this Type typeArgument) =>
+            typeof(TClass).MakeGenericType(typeArgument).Instantiate();
+
+        /// <summary>
+        /// Instantiates the specified generic types
+        /// </summary>
+        /// <typeparam name="TClass">The type to instantiate</typeparam>
+        /// <param name="typeArgument">The types of the generic type arguments</param>
+        /// <returns></returns>
+        public static object InstantiateGeneric<TClass>(this Type[] typeArgument) =>
+            typeof(TClass).MakeGenericType(typeArgument).Instantiate();
+
+        /// <summary>
+        /// Instantiates a list of the specified generic type
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        public static IList InstantiateList(this Type type) =>
+            (IList)typeof(List<>).MakeGenericType(type).Instantiate();
+
+        #endregion
+
+        #region Fast Reflection
+
+        private static GetDelegate<TReturn> CreateGetDelegate<TReturn>(this FieldInfo field) {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(field.FieldType)) {
+                throw new Exception($"Field type {field.FieldType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+
+            var method = new DynamicMethodDefinition($"{field} Getter", typeof(TReturn), new[] { typeof(object) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+                if (field.DeclaringType.GetTypeInfo().IsValueType) {
+                    il.Emit(OpCodes.Unbox_Any, field.DeclaringType);
+                }
+            }
+
+            il.Emit(!field.IsStatic ? OpCodes.Ldfld : OpCodes.Ldsfld, field);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegate<TReturn>)method.Generate().CreateDelegate(typeof(GetDelegate<TReturn>));
+        }
+
+        private static SetDelegate<TValue> CreateSetDelegate<TValue>(this FieldInfo field) {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (!field.FieldType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {field.FieldType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{field} Setter", typeof(void),
+                new[] { typeof(object), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(!field.IsStatic ? OpCodes.Stfld : OpCodes.Stsfld, field);
+
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegate<TValue>)method.Generate().CreateDelegate(typeof(SetDelegate<TValue>));
+        }
+
+        private static SetDelegateRef<TInstance, TValue> CreateSetDelegateRef<TInstance, TValue>(this FieldInfo field) where TInstance : struct {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (field.FieldType != typeof(TValue)) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {field.FieldType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{field} SetterByRef", typeof(void),
+                new[] { typeof(TInstance).MakeByRefType(), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(!field.IsStatic ? OpCodes.Stfld : OpCodes.Stsfld, field);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegateRef<TInstance, TValue>)method.Generate().CreateDelegate(typeof(SetDelegateRef<TInstance, TValue>));
+        }
+
+        private static GetDelegate<TReturn> CreateGetDelegate<TReturn>(this PropertyInfo property) {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(property.PropertyType)) {
+                throw new Exception($"Field type {property.PropertyType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Getter", typeof(TReturn), new[] { typeof(object) });
+            var il = method.GetILProcessor();
+
+            var getMethod = property.GetGetMethod(nonPublic: true);
+
+            if (!getMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Call, getMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegate<TReturn>)method.Generate().CreateDelegate(typeof(GetDelegate<TReturn>));
+        }
+
+        private static GetDelegateRef<TInstance, TReturn> CreateGetDelegate<TInstance, TReturn>(this PropertyInfo property) where TInstance : struct {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(property.PropertyType)) {
+                throw new Exception($"Field type {property.PropertyType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Getter", typeof(TReturn), new[] { typeof(TInstance).MakeByRefType() });
+            var il = method.GetILProcessor();
+
+            // Cache this as well?
+            var getMethod = property.GetGetMethod(nonPublic: true);
+
+            if (!getMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Call, getMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegateRef<TInstance, TReturn>)method.Generate().CreateDelegate(typeof(GetDelegateRef<TInstance, TReturn>));
+        }
+
+
+        private static SetDelegate<TValue> CreateSetDelegate<TValue>(this PropertyInfo property) {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!property.PropertyType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {property.PropertyType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Setter", typeof(void),
+                new[] { typeof(object), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            var setMethod = property.GetSetMethod(true);
+
+            if (!setMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(OpCodes.Call, setMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegate<TValue>)method.Generate().CreateDelegate(typeof(SetDelegate<TValue>));
+        }
+
+        private static SetDelegateRef<TInstance, TValue> CreateSetDelegateRef<TInstance, TValue>(this PropertyInfo property) where TInstance : struct {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!property.PropertyType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {property.PropertyType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} SetterByRef", typeof(void),
+                new[] { typeof(TInstance).MakeByRefType(), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            var setMethod = property.GetSetMethod(true);
+
+            if (!setMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(OpCodes.Call, setMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegateRef<TInstance, TValue>)method.Generate().CreateDelegate(typeof(SetDelegateRef<TInstance, TValue>));
+        }
+
+        // Partial hack from https://github.com/0x0ade/MonoMod/blob/master/MonoMod.Utils/FastReflectionHelper.cs
+        // to get fast call delegates
+        //private static CallDelegate GenerateCallDelegate(this MethodInfo method) {
+        //    if (method == null) {
+        //        throw new ArgumentException("Method cannot be null.", nameof(method));
+        //    }
+
+        //    var dmd = new DynamicMethodDefinition(
+        //        $"CallDelegate<{method.Name}>", typeof(object), new[] { typeof(object), typeof(object[]) });
+        //    var il = dmd.GetILProcessor();
+
+        //    var args = method.GetParameters();
+
+        //    if (!method.IsStatic) {
+        //        il.Emit(OpCodes.Ldarg_0);
+        //        if (method.DeclaringType.GetTypeInfo().IsValueType) {
+        //            il.Emit(OpCodes.Unbox_Any, method.DeclaringType);
+        //        }
+        //    }
+
+        //    for (var i = 0; i < args.Length; i++) {
+        //        var argType = args[i].ParameterType;
+        //        var argIsByRef = argType.IsByRef;
+        //        if (argIsByRef)
+        //            argType = argType.GetElementType();
+        //        var argIsValueType = argType.GetTypeInfo().IsValueType;
+
+        //        if (argIsByRef && argIsValueType) {
+        //            // Used later when storing back the reference to the new box in the array.
+        //            il.Emit(OpCodes.Ldarg_1);
+        //            il.EmitFast_Ldc_I4(i);
+        //        }
+
+        //        il.Emit(OpCodes.Ldarg_1);
+        //        il.EmitFast_Ldc_I4(i);
+
+        //        if (argIsByRef && !argIsValueType) {
+        //            il.Emit(OpCodes.Ldelema, typeof(object));
+        //        }
+        //        else {
+        //            il.Emit(OpCodes.Ldelem_Ref);
+        //            if (!argIsValueType) continue;
+        //            il.Emit(!argIsByRef ? OpCodes.Unbox_Any : OpCodes.Unbox, argType);
+        //        }
+        //    }
+
+        //    if (method.IsFinal || !method.IsVirtual) {
+        //        il.Emit(OpCodes.Call, method);
+        //    }
+        //    else {
+        //        il.Emit(OpCodes.Callvirt, method);
+        //    }
+
+        //    var returnType = method.IsConstructor ? method.DeclaringType : method.ReturnType;
+        //    if (returnType != typeof(void)) {
+        //        if (returnType.GetTypeInfo().IsValueType) {
+        //            il.Emit(OpCodes.Box, returnType);
+        //        }
+        //    }
+        //    else {
+        //        il.Emit(OpCodes.Ldnull);
+        //    }
+
+        //    il.Emit(OpCodes.Ret);
+
+        //    return (CallDelegate) dmd.Generate().CreateDelegate(typeof(CallDelegate));
+        //}
+
+        // https://github.com/0x0ade/MonoMod/blob/master/MonoMod.Utils/FastReflectionHelper.cs
+        public static void EmitFast_Ldc_I4(this ILProcessor il, int value) {
+            switch (value) {
+                case -1:
+                    il.Emit(OpCodes.Ldc_I4_M1);
+                    return;
+                case 0:
+                    il.Emit(OpCodes.Ldc_I4_0);
+                    return;
+                case 1:
+                    il.Emit(OpCodes.Ldc_I4_1);
+                    return;
+                case 2:
+                    il.Emit(OpCodes.Ldc_I4_2);
+                    return;
+                case 3:
+                    il.Emit(OpCodes.Ldc_I4_3);
+                    return;
+                case 4:
+                    il.Emit(OpCodes.Ldc_I4_4);
+                    return;
+                case 5:
+                    il.Emit(OpCodes.Ldc_I4_5);
+                    return;
+                case 6:
+                    il.Emit(OpCodes.Ldc_I4_6);
+                    return;
+                case 7:
+                    il.Emit(OpCodes.Ldc_I4_7);
+                    return;
+                case 8:
+                    il.Emit(OpCodes.Ldc_I4_8);
+                    return;
+            }
+
+            if (value > -129 && value < 128)
+                il.Emit(OpCodes.Ldc_I4_S, (sbyte)value);
+            else
+                il.Emit(OpCodes.Ldc_I4, value);
+        }
+
+        public static byte ReadLocalIndex(OpCode opCode, object operand) {
+            if (opCode == OpCodes.Ldloc_0 || opCode == OpCodes.Stloc_0) {
+                return 0;
+            }
+            if (opCode == OpCodes.Ldloc_1 || opCode == OpCodes.Stloc_1) {
+                return 1;
+            }
+            if (opCode == OpCodes.Ldloc_2 || opCode == OpCodes.Stloc_2) {
+                return 2;
+            }
+            if (opCode == OpCodes.Ldloc_3 || opCode == OpCodes.Stloc_3) {
+                return 3;
+            }
+            if (opCode == OpCodes.Ldloc_S || opCode == OpCodes.Stloc_S) {
+                return (byte)operand;
+            }
+
+            throw new Exception($"Could not read index for opcode and operand: {opCode} - {operand}");
+        }
+
+        #endregion
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource method of type MonoMod.Utils.DynamicMethodDefinition in method "Reflection$SetDelegateRef`2<TInstance,TValue> Reflection.CreateSetDelegateRef(PropertyInfo)".
+
+### Severity:
+ERROR
+
+### Procedure:
+Reflection$SetDelegateRef`2<TInstance,TValue> Reflection.CreateSetDelegateRef(PropertyInfo)
+
+### File:
+R2API/Utils/Reflection.cs
+
+### Key:
+Reflection.cs|CreateSetDelegateRef|DOTNET_RESOURCE_LEAK
+
+### Hash:
+956d446b2799643ff693e066d4ac4a7b
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0504/instruction.md

@@ -0,0 +1,956 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** R2API
+**Bug ID:** 4
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using Mono.Cecil.Cil;
+using MonoMod.Utils;
+
+namespace R2API.Utils {
+    public static class Reflection {
+
+        private const BindingFlags AllFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static |
+                                              BindingFlags.Instance | BindingFlags.DeclaredOnly;
+
+        private delegate T GetDelegate<out T>(object instance);
+
+        private delegate void SetDelegate<in T>(object instance, T value);
+
+        //private delegate object CallDelegate(object instance, object[] arguments);
+
+        private delegate void SetDelegateRef<TInstance, in TValue>(ref TInstance instance, TValue value) where TInstance : struct;
+
+        private delegate T GetDelegateRef<TInstance, out T>(ref TInstance instance) where TInstance : struct;
+
+        #region Caches
+
+        // Field
+        private static readonly ConcurrentDictionary<(Type T, string name), FieldInfo> FieldCache =
+            new ConcurrentDictionary<(Type T, string name), FieldInfo>();
+
+        private static readonly ConcurrentDictionary<FieldInfo, Delegate> FieldGetDelegateCache =
+            new ConcurrentDictionary<FieldInfo, Delegate>();
+
+        private static readonly ConcurrentDictionary<FieldInfo, Delegate> FieldSetDelegateCache =
+            new ConcurrentDictionary<FieldInfo, Delegate>();
+
+
+        // Property
+        private static readonly ConcurrentDictionary<(Type T, string name), PropertyInfo> PropertyCache =
+            new ConcurrentDictionary<(Type T, string name), PropertyInfo>();
+
+        private static readonly ConcurrentDictionary<PropertyInfo, Delegate> PropertyGetDelegateCache =
+            new ConcurrentDictionary<PropertyInfo, Delegate>();
+
+        private static readonly ConcurrentDictionary<PropertyInfo, Delegate> PropertySetDelegateCache =
+            new ConcurrentDictionary<PropertyInfo, Delegate>();
+
+
+        // Method
+        private static readonly ConcurrentDictionary<(Type T, string name), MethodInfo> MethodCache =
+            new ConcurrentDictionary<(Type T, string name), MethodInfo>();
+
+        private static readonly ConcurrentDictionary<(Type T, string name, Type[] argumentTypes), MethodInfo>
+            OverloadedMethodCache =
+                new ConcurrentDictionary<(Type T, string name, Type[] argumentTypes), MethodInfo>();
+
+        private static readonly ConcurrentDictionary<MethodInfo, FastReflectionDelegate> DelegateCache =
+            new ConcurrentDictionary<MethodInfo, FastReflectionDelegate>();
+
+
+        // Class
+        private static readonly ConcurrentDictionary<(Type T, Type[] argumentTypes), ConstructorInfo> ConstructorCache =
+            new ConcurrentDictionary<(Type T, Type[] argumentTypes), ConstructorInfo>();
+
+        private static readonly ConcurrentDictionary<(Type T, string name), Type> NestedTypeCache =
+            new ConcurrentDictionary<(Type T, string name), Type>();
+
+
+        // Helper methods
+        private static TValue GetOrAddOnNull<TKey, TValue>(this ConcurrentDictionary<TKey, TValue> dict, TKey key,
+            Func<TKey, TValue> factory) {
+            if (dict.TryGetValue(key, out var val) && val != null)
+                return val;
+
+            return dict[key] = factory(key);
+        }
+
+        #endregion
+
+        #region Field
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo"/> of the type by name and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the field to find</param>
+        /// <returns></returns>
+        public static FieldInfo GetFieldCached<T>(string name) =>
+            typeof(T).GetFieldCached(name);
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo" /> of the type by name and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the field to find</param>
+        /// <returns></returns>
+        public static FieldInfo GetFieldCached(this Type T, string name) =>
+            FieldCache.GetOrAddOnNull((T, name), x => x.T.GetFieldFull(x.name)
+                ?? throw new Exception($"Could not find {nameof(FieldInfo)} on {T.FullName} with the name {name}"));
+
+
+        /// <summary>
+        /// Gets the value of the field on the object
+        /// </summary>
+        /// <typeparam name="TReturn">The type of the return value</typeparam>
+        /// <param name="fieldName">The name of the field to get the value of</param>
+        /// <param name="instance">The object to get the field's value from</param>
+        /// <returns></returns>
+        public static TReturn GetFieldValue<TReturn>(this object instance, string fieldName) =>
+            instance.GetType()
+                .GetFieldCached(fieldName)
+                .GetFieldGetDelegate<TReturn>()
+                (instance);
+
+        /// <summary>
+        /// Gets the value of the specified static field on the specified static type
+        /// </summary>
+        /// <typeparam name="TReturn">The return type</typeparam>
+        /// <param name="staticType">The name of the static field to get the value of</param>
+        /// <param name="fieldName">The type to get the specified static field's value on</param>
+        /// <returns></returns>
+        public static TReturn GetFieldValue<TReturn>(this Type staticType, string fieldName) =>
+            staticType
+                .GetFieldCached(fieldName)
+                .GetFieldGetDelegate<TReturn>()
+                (null);
+
+        /// <summary>
+        /// Sets the value of the specified field on the specified object; if the object is a struct use
+        /// <see cref="SetStructFieldValue{TInstance, TValue}(ref TInstance, string, TValue)"/> instead
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified field's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetFieldValue<TValue>(this object instance, string fieldName, TValue value) =>
+            instance.GetType()
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegate<TValue>()
+                (instance, value);
+
+        /// <summary>
+        /// Sets the value of the specified static field on the specified static type
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="staticType">The name of the static field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified static field's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetFieldValue<TValue>(this Type staticType, string fieldName, TValue value) =>
+            staticType
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegate<TValue>()
+                (null, value);
+
+        /// <summary>
+        /// Sets the value of the specified field on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the instance of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified field's value on</param>
+        /// <param name="value">The value to set the field to</param>
+        /// <returns></returns>
+        public static void SetStructFieldValue<TInstance, TValue>(this ref TInstance instance, string fieldName, TValue value)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegateRef<TInstance, TValue>()
+                (ref instance, value);
+
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo"/> on the specified <see cref="Type"/> and searches base types if not found.
+        /// </summary>
+        /// <param name="T">The <see cref="Type"/> to search and get base types from</param>
+        /// <param name="name">The name of the property to search for.</param>
+        /// <returns></returns>
+        private static FieldInfo GetFieldFull(this Type T, string name) {
+            while (T != null) {
+                var fieldInfo = T.GetField(name, AllFlags);
+                if (fieldInfo != null) {
+                    return fieldInfo;
+                }
+
+                T = T.BaseType;
+            }
+
+            return null;
+        }
+
+        private static T GetMemberFull<T>(this Type type, string name) where T : MemberInfo {
+            while (type != null) {
+                var fieldInfo = type.GetMember(name, AllFlags);
+                if (fieldInfo != null) {
+                    return (T)fieldInfo.First();
+                }
+
+                type = type.BaseType;
+            }
+
+            return null;
+        }
+
+        private static GetDelegate<TReturn> GetFieldGetDelegate<TReturn>(this FieldInfo field) =>
+            FieldGetDelegateCache.GetOrAdd(field, x => x.CreateGetDelegate<TReturn>())
+                .CastDelegate<GetDelegate<TReturn>>();
+
+        private static SetDelegate<TValue> GetFieldSetDelegate<TValue>(this FieldInfo field) =>
+            FieldSetDelegateCache.GetOrAdd(field, x => x.CreateSetDelegate<TValue>())
+                .CastDelegate<SetDelegate<TValue>>();
+
+        private static SetDelegateRef<TInstance, TValue> GetFieldSetDelegateRef<TInstance, TValue>(this FieldInfo field) where TInstance : struct =>
+            FieldSetDelegateCache.GetOrAdd(field, x => x.CreateSetDelegateRef<TInstance, TValue>())
+                .CastDelegate<SetDelegateRef<TInstance, TValue>>();
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets the <see cref="PropertyInfo"/> of the type by name
+        /// </summary>
+        /// <typeparam name="T">The type on which to find the property</typeparam>
+        /// <param name="name">The name of the property to get</param>
+        /// <returns></returns>
+        public static PropertyInfo GetPropertyCached<T>(string name) =>
+            typeof(T).GetPropertyCached(name);
+
+        /// <summary>
+        /// Gets the <see cref="PropertyInfo"/> of the type by name
+        /// </summary>
+        /// <param name="T">The type to get the <see cref="PropertyInfo"/> from</param>
+        /// <param name="name">The name of the property to get</param>
+        /// <returns></returns>
+        public static PropertyInfo GetPropertyCached(this Type T, string name) =>
+            PropertyCache.GetOrAddOnNull((T, name), x => x.T.GetProperty(x.name, AllFlags));
+
+        /// <summary>
+        /// Gets the value of the property on the specified object; if the object is a struct use
+        /// <see cref="GetStructPropertyValue{TInstance, TValue}(ref TInstance, string)"></see> instead
+        /// </summary>
+        /// <typeparam name="TReturn">The type of the return value</typeparam>
+        /// <param name="instance">The object to get the property's value from</param>
+        /// <param name="propName">The name of the field to get the value of</param>
+        /// <returns></returns>
+        public static TReturn GetPropertyValue<TReturn>(this object instance, string propName) =>
+            instance.GetType()
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegate<TReturn>()
+                (instance);
+
+        /// <summary>
+        /// Gets the value of the static property on the specified static type
+        /// </summary>
+        /// <typeparam name="TReturn">The return type</typeparam>
+        /// <param name="staticType">The name of the static field to get the value of</param>
+        /// <param name="propName">The type to get the specified static property's value on</param>
+        /// <returns></returns>
+        public static TReturn GetPropertyValue<TReturn>(this Type staticType, string propName) =>
+            staticType
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegate<TReturn>()
+                (null);
+
+        /// <summary>
+        /// Sets the value of the property on the specified class; if you're setting the property on a
+        /// struct use <see cref="SetStructPropertyValue{TInstance, TValue}(ref TInstance, string, TValue)"/> instead
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetPropertyValue<TValue>(this object instance, string propName, TValue value) =>
+            instance.GetType()
+                .GetPropertyCached(propName)?
+                .GetPropertySetDelegate<TValue>()
+                (instance, value);
+
+        /// <summary>
+        /// Sets the value of the static property on the specified static class
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="staticType">The name of the static field to set the value of</param>
+        /// <param name="propName">The type to set the specified static property's value on</param>
+        /// <param name="value">The value to set the property to</param>
+        /// <returns></returns>
+        public static void SetPropertyValue<TValue>(this Type staticType, string propName, TValue value) =>
+            staticType.GetPropertyCached(propName)?
+                .GetPropertySetDelegate<TValue>()
+                (null, value);
+
+        /// <summary>
+        /// Sets the value of the specified property on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the instance of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <param name="value">The value to set the property to</param>
+        /// <returns></returns>
+        public static void SetStructPropertyValue<TInstance, TValue>(this ref TInstance instance, string propName,
+            TValue value)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetPropertyCached(propName)
+                .GetPropertySetDelegateRef<TInstance, TValue>()
+                (ref instance, value);
+
+        /// <summary>
+        /// Gets the value of the specified property on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <returns></returns>
+        public static TValue GetStructPropertyValue<TInstance, TValue>(this ref TInstance instance, string propName)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegateRef<TInstance, TValue>()
+                (ref instance);
+
+        private static GetDelegate<TReturn> GetPropertyGetDelegate<TReturn>(this PropertyInfo property) =>
+            PropertyGetDelegateCache.GetOrAdd(property, prop => prop.CreateGetDelegate<TReturn>())
+                .CastDelegate<GetDelegate<TReturn>>();
+
+        private static GetDelegateRef<TInstance, TReturn> GetPropertyGetDelegateRef<TInstance, TReturn>(this PropertyInfo property)
+            where TInstance : struct =>
+            PropertyGetDelegateCache.GetOrAdd(property, prop => prop.CreateGetDelegate<TInstance, TReturn>())
+                .CastDelegate<GetDelegateRef<TInstance, TReturn>>();
+
+        private static SetDelegate<TValue> GetPropertySetDelegate<TValue>(this PropertyInfo property) =>
+            PropertySetDelegateCache.GetOrAdd(property, prop => prop.CreateSetDelegate<TValue>())
+                .CastDelegate<SetDelegate<TValue>>();
+
+        private static SetDelegateRef<TInstance, TValue> GetPropertySetDelegateRef<TInstance, TValue>(
+            this PropertyInfo property)
+            where TInstance : struct =>
+            PropertySetDelegateCache.GetOrAdd(property, prop => prop.CreateSetDelegateRef<TInstance, TValue>())
+                .CastDelegate<SetDelegateRef<TInstance, TValue>>();
+
+        #endregion
+
+        #region Method
+
+        /// <summary>
+        /// Gets the method on the specified type and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the method to find</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached<T>(string name) =>
+            typeof(T).GetMethodCached(name);
+
+        /// <summary>
+        /// Gets the method on the specified static type and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the method to find</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached(this Type T, string name) =>
+            MethodCache.GetOrAddOnNull((T, name), x => x.T.GetMethod(x.name, AllFlags)
+                ?? throw new Exception($"Could not find {nameof(MethodInfo)} on {T.FullName} with the name {name}"));
+
+        /// <summary>
+        /// Gets the method on the specified type and caches it. This overload is used when the method is ambiguous
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the method to find</param>
+        /// <param name="argumentTypes">The types of the argument</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached<T>(string name, Type[] argumentTypes) =>
+            typeof(T).GetMethodCached(name, argumentTypes);
+
+        /// <summary>
+        /// Gets the method on the specified static type and caches it. This overload is used when the method is ambiguous
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the method to find</param>
+        /// <param name="argumentTypes">The types of the argument</param>
+        public static MethodInfo GetMethodCached(this Type T, string name, Type[] argumentTypes) =>
+            OverloadedMethodCache.GetOrAddOnNull((T, name, argumentTypes),
+                x => x.T.GetMethod(x.name, AllFlags, null, x.argumentTypes, null)
+                     ?? throw new Exception($"Could not find {nameof(MethodInfo)} on {T.FullName} with the name {name} and arguments: " +
+                                            $"{string.Join(",", argumentTypes.Select(a => a.FullName))}"));
+
+        /// <summary>
+        /// Invoke a method on the specified object by name
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this object instance, string methodName) =>
+            instance.InvokeMethod<TReturn>(methodName, null);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this Type staticType, string methodName) =>
+            staticType.InvokeMethod<TReturn>(methodName, null);
+
+        /// <summary>
+        /// Invoke a method on the specified object by name
+        /// </summary>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        public static void InvokeMethod(this object instance, string methodName) =>
+            instance.InvokeMethod<object>(methodName);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name
+        /// </summary>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        public static void InvokeMethod(this Type staticType, string methodName) =>
+            staticType.InvokeMethod<object>(methodName);
+
+        /// <summary>
+        /// Invoke a method on the specified object by name with parameters
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this object instance, string methodName,
+            params object[] methodParams) {
+            var methodInfo = (methodParams == null
+                    ? instance.GetType()
+                        .GetMethodCached(methodName)
+                    : instance.GetType()
+                        .GetMethodCached(methodName, methodParams.Select(x => x.GetType()).ToArray())
+                ) ?? throw new Exception($"Could not find method on type {instance.GetType()} with the name of {methodName} with the arguments specified.");
+
+            return (TReturn)methodInfo.GetMethodDelegateCached()(instance, methodParams);
+        }
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name with parameters
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams">The method parameters</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this Type staticType, string methodName,
+            params object[] methodParams) {
+            var methodInfo = (methodParams == null
+                ? staticType
+                    .GetMethodCached(methodName)
+                : staticType
+                    .GetMethodCached(methodName, methodParams.Select(x => x.GetType()).ToArray()))
+                ?? throw new Exception($"Could not find method on type {staticType} with the name of {methodName} with the arguments specified.");
+
+            return (TReturn)methodInfo.GetMethodDelegateCached()(null, methodParams);
+        }
+
+        /// <summary>
+        /// Invoke a method on the specified object by name with parameters
+        /// </summary>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        public static void InvokeMethod(this object instance, string methodName, params object[] methodParams) =>
+            instance.InvokeMethod<object>(methodName, methodParams);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name with parameters
+        /// </summary>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        public static void InvokeMethod(this Type staticType, string methodName, params object[] methodParams) =>
+            staticType.InvokeMethod<object>(methodName, methodParams);
+
+
+        private static FastReflectionDelegate GetMethodDelegateCached(this MethodInfo methodInfo) =>
+            DelegateCache.GetOrAdd(methodInfo, method => method.CreateFastDelegate());
+
+        #endregion
+
+        #region Class
+
+        /// <summary>
+        /// Gets the constructor on the specified type with specified arguments and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="argumentTypes">The types of the arguments on the constructor to find</param>
+        /// <returns></returns>
+        public static ConstructorInfo GetConstructorCached<T>(Type[] argumentTypes) =>
+            GetConstructorCached(typeof(T), argumentTypes);
+
+        /// <summary>
+        /// Gets the constructor on the specified static type with specified arguments and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="argumentTypes">The types of the arguments on the constructor to find</param>
+        /// <returns></returns>
+        public static ConstructorInfo GetConstructorCached(this Type T, Type[] argumentTypes) =>
+            ConstructorCache.GetOrAddOnNull((T, argumentTypes), x => x.T.GetConstructor(x.argumentTypes)
+                ?? throw new Exception($"Could not find {nameof(ConstructorInfo)} on {T.FullName} with the arguments {string.Join(",", argumentTypes.Select(a => a.FullName))}"));
+
+        /// <summary>
+        /// Gets the nested type on the specified type
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedType<T>(string name) =>
+            typeof(T).GetNestedTypeCached(name);
+
+        /// <summary>
+        /// Gets the nested type on the specified type
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedTypeCached<T>(string name) =>
+            typeof(T).GetNestedTypeCached(name);
+
+        /// <summary>
+        /// Gets the nested type on the specified static type
+        /// </summary>
+        /// <param name="T">The static type to search</param>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedTypeCached(this Type T, string name) =>
+            NestedTypeCache.GetOrAddOnNull((T, name), x => x.T.GetNestedType(x.name, AllFlags)
+                ?? throw new Exception($"Could not find nested {nameof(Type)} on {T.FullName} with the name {name}"));
+
+        /// <summary>
+        /// Instatiates the specified type
+        /// </summary>
+        /// <param name="type">The type to instantiate</param>
+        /// <returns></returns>
+        public static object Instantiate(this Type type) =>
+            Activator.CreateInstance(type, true);
+
+        /// <summary>
+        /// Instatiates the specified type with specified constructor arguments
+        /// </summary>
+        /// <param name="type">The type to instantiate</param>
+        /// <param name="constructorArguments">The constructor arguments</param>
+        /// <returns></returns>
+        public static object Instantiate(this Type type, params object[] constructorArguments) =>
+            type.GetConstructorCached(constructorArguments.Select(x => x.GetType()).ToArray())
+                .Invoke(constructorArguments);
+
+        /// <summary>
+        /// Instantiates the specified generic type
+        /// </summary>
+        /// <typeparam name="TClass">The type to instantiate</typeparam>
+        /// <param name="typeArgument">The type of the generic type argument</param>
+        /// <returns></returns>
+        public static object InstantiateGeneric<TClass>(this Type typeArgument) =>
+            typeof(TClass).MakeGenericType(typeArgument).Instantiate();
+
+        /// <summary>
+        /// Instantiates the specified generic types
+        /// </summary>
+        /// <typeparam name="TClass">The type to instantiate</typeparam>
+        /// <param name="typeArgument">The types of the generic type arguments</param>
+        /// <returns></returns>
+        public static object InstantiateGeneric<TClass>(this Type[] typeArgument) =>
+            typeof(TClass).MakeGenericType(typeArgument).Instantiate();
+
+        /// <summary>
+        /// Instantiates a list of the specified generic type
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        public static IList InstantiateList(this Type type) =>
+            (IList)typeof(List<>).MakeGenericType(type).Instantiate();
+
+        #endregion
+
+        #region Fast Reflection
+
+        private static GetDelegate<TReturn> CreateGetDelegate<TReturn>(this FieldInfo field) {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(field.FieldType)) {
+                throw new Exception($"Field type {field.FieldType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+
+            var method = new DynamicMethodDefinition($"{field} Getter", typeof(TReturn), new[] { typeof(object) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+                if (field.DeclaringType.GetTypeInfo().IsValueType) {
+                    il.Emit(OpCodes.Unbox_Any, field.DeclaringType);
+                }
+            }
+
+            il.Emit(!field.IsStatic ? OpCodes.Ldfld : OpCodes.Ldsfld, field);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegate<TReturn>)method.Generate().CreateDelegate(typeof(GetDelegate<TReturn>));
+        }
+
+        private static SetDelegate<TValue> CreateSetDelegate<TValue>(this FieldInfo field) {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (!field.FieldType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {field.FieldType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{field} Setter", typeof(void),
+                new[] { typeof(object), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(!field.IsStatic ? OpCodes.Stfld : OpCodes.Stsfld, field);
+
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegate<TValue>)method.Generate().CreateDelegate(typeof(SetDelegate<TValue>));
+        }
+
+        private static SetDelegateRef<TInstance, TValue> CreateSetDelegateRef<TInstance, TValue>(this FieldInfo field) where TInstance : struct {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (field.FieldType != typeof(TValue)) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {field.FieldType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{field} SetterByRef", typeof(void),
+                new[] { typeof(TInstance).MakeByRefType(), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(!field.IsStatic ? OpCodes.Stfld : OpCodes.Stsfld, field);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegateRef<TInstance, TValue>)method.Generate().CreateDelegate(typeof(SetDelegateRef<TInstance, TValue>));
+        }
+
+        private static GetDelegate<TReturn> CreateGetDelegate<TReturn>(this PropertyInfo property) {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(property.PropertyType)) {
+                throw new Exception($"Field type {property.PropertyType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Getter", typeof(TReturn), new[] { typeof(object) });
+            var il = method.GetILProcessor();
+
+            var getMethod = property.GetGetMethod(nonPublic: true);
+
+            if (!getMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Call, getMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegate<TReturn>)method.Generate().CreateDelegate(typeof(GetDelegate<TReturn>));
+        }
+
+        private static GetDelegateRef<TInstance, TReturn> CreateGetDelegate<TInstance, TReturn>(this PropertyInfo property) where TInstance : struct {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(property.PropertyType)) {
+                throw new Exception($"Field type {property.PropertyType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Getter", typeof(TReturn), new[] { typeof(TInstance).MakeByRefType() });
+            var il = method.GetILProcessor();
+
+            // Cache this as well?
+            var getMethod = property.GetGetMethod(nonPublic: true);
+
+            if (!getMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Call, getMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegateRef<TInstance, TReturn>)method.Generate().CreateDelegate(typeof(GetDelegateRef<TInstance, TReturn>));
+        }
+
+
+        private static SetDelegate<TValue> CreateSetDelegate<TValue>(this PropertyInfo property) {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!property.PropertyType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {property.PropertyType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Setter", typeof(void),
+                new[] { typeof(object), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            var setMethod = property.GetSetMethod(true);
+
+            if (!setMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(OpCodes.Call, setMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegate<TValue>)method.Generate().CreateDelegate(typeof(SetDelegate<TValue>));
+        }
+
+        private static SetDelegateRef<TInstance, TValue> CreateSetDelegateRef<TInstance, TValue>(this PropertyInfo property) where TInstance : struct {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!property.PropertyType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {property.PropertyType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} SetterByRef", typeof(void),
+                new[] { typeof(TInstance).MakeByRefType(), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            var setMethod = property.GetSetMethod(true);
+
+            if (!setMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(OpCodes.Call, setMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegateRef<TInstance, TValue>)method.Generate().CreateDelegate(typeof(SetDelegateRef<TInstance, TValue>));
+        }
+
+        // Partial hack from https://github.com/0x0ade/MonoMod/blob/master/MonoMod.Utils/FastReflectionHelper.cs
+        // to get fast call delegates
+        //private static CallDelegate GenerateCallDelegate(this MethodInfo method) {
+        //    if (method == null) {
+        //        throw new ArgumentException("Method cannot be null.", nameof(method));
+        //    }
+
+        //    var dmd = new DynamicMethodDefinition(
+        //        $"CallDelegate<{method.Name}>", typeof(object), new[] { typeof(object), typeof(object[]) });
+        //    var il = dmd.GetILProcessor();
+
+        //    var args = method.GetParameters();
+
+        //    if (!method.IsStatic) {
+        //        il.Emit(OpCodes.Ldarg_0);
+        //        if (method.DeclaringType.GetTypeInfo().IsValueType) {
+        //            il.Emit(OpCodes.Unbox_Any, method.DeclaringType);
+        //        }
+        //    }
+
+        //    for (var i = 0; i < args.Length; i++) {
+        //        var argType = args[i].ParameterType;
+        //        var argIsByRef = argType.IsByRef;
+        //        if (argIsByRef)
+        //            argType = argType.GetElementType();
+        //        var argIsValueType = argType.GetTypeInfo().IsValueType;
+
+        //        if (argIsByRef && argIsValueType) {
+        //            // Used later when storing back the reference to the new box in the array.
+        //            il.Emit(OpCodes.Ldarg_1);
+        //            il.EmitFast_Ldc_I4(i);
+        //        }
+
+        //        il.Emit(OpCodes.Ldarg_1);
+        //        il.EmitFast_Ldc_I4(i);
+
+        //        if (argIsByRef && !argIsValueType) {
+        //            il.Emit(OpCodes.Ldelema, typeof(object));
+        //        }
+        //        else {
+        //            il.Emit(OpCodes.Ldelem_Ref);
+        //            if (!argIsValueType) continue;
+        //            il.Emit(!argIsByRef ? OpCodes.Unbox_Any : OpCodes.Unbox, argType);
+        //        }
+        //    }
+
+        //    if (method.IsFinal || !method.IsVirtual) {
+        //        il.Emit(OpCodes.Call, method);
+        //    }
+        //    else {
+        //        il.Emit(OpCodes.Callvirt, method);
+        //    }
+
+        //    var returnType = method.IsConstructor ? method.DeclaringType : method.ReturnType;
+        //    if (returnType != typeof(void)) {
+        //        if (returnType.GetTypeInfo().IsValueType) {
+        //            il.Emit(OpCodes.Box, returnType);
+        //        }
+        //    }
+        //    else {
+        //        il.Emit(OpCodes.Ldnull);
+        //    }
+
+        //    il.Emit(OpCodes.Ret);
+
+        //    return (CallDelegate) dmd.Generate().CreateDelegate(typeof(CallDelegate));
+        //}
+
+        // https://github.com/0x0ade/MonoMod/blob/master/MonoMod.Utils/FastReflectionHelper.cs
+        public static void EmitFast_Ldc_I4(this ILProcessor il, int value) {
+            switch (value) {
+                case -1:
+                    il.Emit(OpCodes.Ldc_I4_M1);
+                    return;
+                case 0:
+                    il.Emit(OpCodes.Ldc_I4_0);
+                    return;
+                case 1:
+                    il.Emit(OpCodes.Ldc_I4_1);
+                    return;
+                case 2:
+                    il.Emit(OpCodes.Ldc_I4_2);
+                    return;
+                case 3:
+                    il.Emit(OpCodes.Ldc_I4_3);
+                    return;
+                case 4:
+                    il.Emit(OpCodes.Ldc_I4_4);
+                    return;
+                case 5:
+                    il.Emit(OpCodes.Ldc_I4_5);
+                    return;
+                case 6:
+                    il.Emit(OpCodes.Ldc_I4_6);
+                    return;
+                case 7:
+                    il.Emit(OpCodes.Ldc_I4_7);
+                    return;
+                case 8:
+                    il.Emit(OpCodes.Ldc_I4_8);
+                    return;
+            }
+
+            if (value > -129 && value < 128)
+                il.Emit(OpCodes.Ldc_I4_S, (sbyte)value);
+            else
+                il.Emit(OpCodes.Ldc_I4, value);
+        }
+
+        public static byte ReadLocalIndex(OpCode opCode, object operand) {
+            if (opCode == OpCodes.Ldloc_0 || opCode == OpCodes.Stloc_0) {
+                return 0;
+            }
+            if (opCode == OpCodes.Ldloc_1 || opCode == OpCodes.Stloc_1) {
+                return 1;
+            }
+            if (opCode == OpCodes.Ldloc_2 || opCode == OpCodes.Stloc_2) {
+                return 2;
+            }
+            if (opCode == OpCodes.Ldloc_3 || opCode == OpCodes.Stloc_3) {
+                return 3;
+            }
+            if (opCode == OpCodes.Ldloc_S || opCode == OpCodes.Stloc_S) {
+                return (byte)operand;
+            }
+
+            throw new Exception($"Could not read index for opcode and operand: {opCode} - {operand}");
+        }
+
+        #endregion
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource method of type MonoMod.Utils.DynamicMethodDefinition in method "Reflection$GetDelegate`1<T> Reflection.CreateGetDelegate(PropertyInfo)".
+
+### Severity:
+ERROR
+
+### Procedure:
+Reflection$GetDelegate`1<T> Reflection.CreateGetDelegate(PropertyInfo)
+
+### File:
+R2API/Utils/Reflection.cs
+
+### Key:
+Reflection.cs|CreateGetDelegate|DOTNET_RESOURCE_LEAK
+
+### Hash:
+39ac3bfb236bcca6a582621a0432a137
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0505/instruction.md

@@ -0,0 +1,956 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** R2API
+**Bug ID:** 3
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using Mono.Cecil.Cil;
+using MonoMod.Utils;
+
+namespace R2API.Utils {
+    public static class Reflection {
+
+        private const BindingFlags AllFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static |
+                                              BindingFlags.Instance | BindingFlags.DeclaredOnly;
+
+        private delegate T GetDelegate<out T>(object instance);
+
+        private delegate void SetDelegate<in T>(object instance, T value);
+
+        //private delegate object CallDelegate(object instance, object[] arguments);
+
+        private delegate void SetDelegateRef<TInstance, in TValue>(ref TInstance instance, TValue value) where TInstance : struct;
+
+        private delegate T GetDelegateRef<TInstance, out T>(ref TInstance instance) where TInstance : struct;
+
+        #region Caches
+
+        // Field
+        private static readonly ConcurrentDictionary<(Type T, string name), FieldInfo> FieldCache =
+            new ConcurrentDictionary<(Type T, string name), FieldInfo>();
+
+        private static readonly ConcurrentDictionary<FieldInfo, Delegate> FieldGetDelegateCache =
+            new ConcurrentDictionary<FieldInfo, Delegate>();
+
+        private static readonly ConcurrentDictionary<FieldInfo, Delegate> FieldSetDelegateCache =
+            new ConcurrentDictionary<FieldInfo, Delegate>();
+
+
+        // Property
+        private static readonly ConcurrentDictionary<(Type T, string name), PropertyInfo> PropertyCache =
+            new ConcurrentDictionary<(Type T, string name), PropertyInfo>();
+
+        private static readonly ConcurrentDictionary<PropertyInfo, Delegate> PropertyGetDelegateCache =
+            new ConcurrentDictionary<PropertyInfo, Delegate>();
+
+        private static readonly ConcurrentDictionary<PropertyInfo, Delegate> PropertySetDelegateCache =
+            new ConcurrentDictionary<PropertyInfo, Delegate>();
+
+
+        // Method
+        private static readonly ConcurrentDictionary<(Type T, string name), MethodInfo> MethodCache =
+            new ConcurrentDictionary<(Type T, string name), MethodInfo>();
+
+        private static readonly ConcurrentDictionary<(Type T, string name, Type[] argumentTypes), MethodInfo>
+            OverloadedMethodCache =
+                new ConcurrentDictionary<(Type T, string name, Type[] argumentTypes), MethodInfo>();
+
+        private static readonly ConcurrentDictionary<MethodInfo, FastReflectionDelegate> DelegateCache =
+            new ConcurrentDictionary<MethodInfo, FastReflectionDelegate>();
+
+
+        // Class
+        private static readonly ConcurrentDictionary<(Type T, Type[] argumentTypes), ConstructorInfo> ConstructorCache =
+            new ConcurrentDictionary<(Type T, Type[] argumentTypes), ConstructorInfo>();
+
+        private static readonly ConcurrentDictionary<(Type T, string name), Type> NestedTypeCache =
+            new ConcurrentDictionary<(Type T, string name), Type>();
+
+
+        // Helper methods
+        private static TValue GetOrAddOnNull<TKey, TValue>(this ConcurrentDictionary<TKey, TValue> dict, TKey key,
+            Func<TKey, TValue> factory) {
+            if (dict.TryGetValue(key, out var val) && val != null)
+                return val;
+
+            return dict[key] = factory(key);
+        }
+
+        #endregion
+
+        #region Field
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo"/> of the type by name and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the field to find</param>
+        /// <returns></returns>
+        public static FieldInfo GetFieldCached<T>(string name) =>
+            typeof(T).GetFieldCached(name);
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo" /> of the type by name and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the field to find</param>
+        /// <returns></returns>
+        public static FieldInfo GetFieldCached(this Type T, string name) =>
+            FieldCache.GetOrAddOnNull((T, name), x => x.T.GetFieldFull(x.name)
+                ?? throw new Exception($"Could not find {nameof(FieldInfo)} on {T.FullName} with the name {name}"));
+
+
+        /// <summary>
+        /// Gets the value of the field on the object
+        /// </summary>
+        /// <typeparam name="TReturn">The type of the return value</typeparam>
+        /// <param name="fieldName">The name of the field to get the value of</param>
+        /// <param name="instance">The object to get the field's value from</param>
+        /// <returns></returns>
+        public static TReturn GetFieldValue<TReturn>(this object instance, string fieldName) =>
+            instance.GetType()
+                .GetFieldCached(fieldName)
+                .GetFieldGetDelegate<TReturn>()
+                (instance);
+
+        /// <summary>
+        /// Gets the value of the specified static field on the specified static type
+        /// </summary>
+        /// <typeparam name="TReturn">The return type</typeparam>
+        /// <param name="staticType">The name of the static field to get the value of</param>
+        /// <param name="fieldName">The type to get the specified static field's value on</param>
+        /// <returns></returns>
+        public static TReturn GetFieldValue<TReturn>(this Type staticType, string fieldName) =>
+            staticType
+                .GetFieldCached(fieldName)
+                .GetFieldGetDelegate<TReturn>()
+                (null);
+
+        /// <summary>
+        /// Sets the value of the specified field on the specified object; if the object is a struct use
+        /// <see cref="SetStructFieldValue{TInstance, TValue}(ref TInstance, string, TValue)"/> instead
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified field's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetFieldValue<TValue>(this object instance, string fieldName, TValue value) =>
+            instance.GetType()
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegate<TValue>()
+                (instance, value);
+
+        /// <summary>
+        /// Sets the value of the specified static field on the specified static type
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="staticType">The name of the static field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified static field's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetFieldValue<TValue>(this Type staticType, string fieldName, TValue value) =>
+            staticType
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegate<TValue>()
+                (null, value);
+
+        /// <summary>
+        /// Sets the value of the specified field on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the instance of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="fieldName">The type to set the specified field's value on</param>
+        /// <param name="value">The value to set the field to</param>
+        /// <returns></returns>
+        public static void SetStructFieldValue<TInstance, TValue>(this ref TInstance instance, string fieldName, TValue value)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetFieldCached(fieldName)
+                .GetFieldSetDelegateRef<TInstance, TValue>()
+                (ref instance, value);
+
+
+        /// <summary>
+        /// Gets the <see cref="FieldInfo"/> on the specified <see cref="Type"/> and searches base types if not found.
+        /// </summary>
+        /// <param name="T">The <see cref="Type"/> to search and get base types from</param>
+        /// <param name="name">The name of the property to search for.</param>
+        /// <returns></returns>
+        private static FieldInfo GetFieldFull(this Type T, string name) {
+            while (T != null) {
+                var fieldInfo = T.GetField(name, AllFlags);
+                if (fieldInfo != null) {
+                    return fieldInfo;
+                }
+
+                T = T.BaseType;
+            }
+
+            return null;
+        }
+
+        private static T GetMemberFull<T>(this Type type, string name) where T : MemberInfo {
+            while (type != null) {
+                var fieldInfo = type.GetMember(name, AllFlags);
+                if (fieldInfo != null) {
+                    return (T)fieldInfo.First();
+                }
+
+                type = type.BaseType;
+            }
+
+            return null;
+        }
+
+        private static GetDelegate<TReturn> GetFieldGetDelegate<TReturn>(this FieldInfo field) =>
+            FieldGetDelegateCache.GetOrAdd(field, x => x.CreateGetDelegate<TReturn>())
+                .CastDelegate<GetDelegate<TReturn>>();
+
+        private static SetDelegate<TValue> GetFieldSetDelegate<TValue>(this FieldInfo field) =>
+            FieldSetDelegateCache.GetOrAdd(field, x => x.CreateSetDelegate<TValue>())
+                .CastDelegate<SetDelegate<TValue>>();
+
+        private static SetDelegateRef<TInstance, TValue> GetFieldSetDelegateRef<TInstance, TValue>(this FieldInfo field) where TInstance : struct =>
+            FieldSetDelegateCache.GetOrAdd(field, x => x.CreateSetDelegateRef<TInstance, TValue>())
+                .CastDelegate<SetDelegateRef<TInstance, TValue>>();
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets the <see cref="PropertyInfo"/> of the type by name
+        /// </summary>
+        /// <typeparam name="T">The type on which to find the property</typeparam>
+        /// <param name="name">The name of the property to get</param>
+        /// <returns></returns>
+        public static PropertyInfo GetPropertyCached<T>(string name) =>
+            typeof(T).GetPropertyCached(name);
+
+        /// <summary>
+        /// Gets the <see cref="PropertyInfo"/> of the type by name
+        /// </summary>
+        /// <param name="T">The type to get the <see cref="PropertyInfo"/> from</param>
+        /// <param name="name">The name of the property to get</param>
+        /// <returns></returns>
+        public static PropertyInfo GetPropertyCached(this Type T, string name) =>
+            PropertyCache.GetOrAddOnNull((T, name), x => x.T.GetProperty(x.name, AllFlags));
+
+        /// <summary>
+        /// Gets the value of the property on the specified object; if the object is a struct use
+        /// <see cref="GetStructPropertyValue{TInstance, TValue}(ref TInstance, string)"></see> instead
+        /// </summary>
+        /// <typeparam name="TReturn">The type of the return value</typeparam>
+        /// <param name="instance">The object to get the property's value from</param>
+        /// <param name="propName">The name of the field to get the value of</param>
+        /// <returns></returns>
+        public static TReturn GetPropertyValue<TReturn>(this object instance, string propName) =>
+            instance.GetType()
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegate<TReturn>()
+                (instance);
+
+        /// <summary>
+        /// Gets the value of the static property on the specified static type
+        /// </summary>
+        /// <typeparam name="TReturn">The return type</typeparam>
+        /// <param name="staticType">The name of the static field to get the value of</param>
+        /// <param name="propName">The type to get the specified static property's value on</param>
+        /// <returns></returns>
+        public static TReturn GetPropertyValue<TReturn>(this Type staticType, string propName) =>
+            staticType
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegate<TReturn>()
+                (null);
+
+        /// <summary>
+        /// Sets the value of the property on the specified class; if you're setting the property on a
+        /// struct use <see cref="SetStructPropertyValue{TInstance, TValue}(ref TInstance, string, TValue)"/> instead
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <param name="value">The value to set</param>
+        /// <returns></returns>
+        public static void SetPropertyValue<TValue>(this object instance, string propName, TValue value) =>
+            instance.GetType()
+                .GetPropertyCached(propName)?
+                .GetPropertySetDelegate<TValue>()
+                (instance, value);
+
+        /// <summary>
+        /// Sets the value of the static property on the specified static class
+        /// </summary>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="staticType">The name of the static field to set the value of</param>
+        /// <param name="propName">The type to set the specified static property's value on</param>
+        /// <param name="value">The value to set the property to</param>
+        /// <returns></returns>
+        public static void SetPropertyValue<TValue>(this Type staticType, string propName, TValue value) =>
+            staticType.GetPropertyCached(propName)?
+                .GetPropertySetDelegate<TValue>()
+                (null, value);
+
+        /// <summary>
+        /// Sets the value of the specified property on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the instance of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <param name="value">The value to set the property to</param>
+        /// <returns></returns>
+        public static void SetStructPropertyValue<TInstance, TValue>(this ref TInstance instance, string propName,
+            TValue value)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetPropertyCached(propName)
+                .GetPropertySetDelegateRef<TInstance, TValue>()
+                (ref instance, value);
+
+        /// <summary>
+        /// Gets the value of the specified property on the specified struct
+        /// </summary>
+        /// <typeparam name="TInstance">The type of the struct</typeparam>
+        /// <typeparam name="TValue">The type of the value to set</typeparam>
+        /// <param name="instance">The name of the field to set the value of</param>
+        /// <param name="propName">The type to set the specified property's value on</param>
+        /// <returns></returns>
+        public static TValue GetStructPropertyValue<TInstance, TValue>(this ref TInstance instance, string propName)
+            where TInstance : struct =>
+            typeof(TInstance)
+                .GetPropertyCached(propName)
+                .GetPropertyGetDelegateRef<TInstance, TValue>()
+                (ref instance);
+
+        private static GetDelegate<TReturn> GetPropertyGetDelegate<TReturn>(this PropertyInfo property) =>
+            PropertyGetDelegateCache.GetOrAdd(property, prop => prop.CreateGetDelegate<TReturn>())
+                .CastDelegate<GetDelegate<TReturn>>();
+
+        private static GetDelegateRef<TInstance, TReturn> GetPropertyGetDelegateRef<TInstance, TReturn>(this PropertyInfo property)
+            where TInstance : struct =>
+            PropertyGetDelegateCache.GetOrAdd(property, prop => prop.CreateGetDelegate<TInstance, TReturn>())
+                .CastDelegate<GetDelegateRef<TInstance, TReturn>>();
+
+        private static SetDelegate<TValue> GetPropertySetDelegate<TValue>(this PropertyInfo property) =>
+            PropertySetDelegateCache.GetOrAdd(property, prop => prop.CreateSetDelegate<TValue>())
+                .CastDelegate<SetDelegate<TValue>>();
+
+        private static SetDelegateRef<TInstance, TValue> GetPropertySetDelegateRef<TInstance, TValue>(
+            this PropertyInfo property)
+            where TInstance : struct =>
+            PropertySetDelegateCache.GetOrAdd(property, prop => prop.CreateSetDelegateRef<TInstance, TValue>())
+                .CastDelegate<SetDelegateRef<TInstance, TValue>>();
+
+        #endregion
+
+        #region Method
+
+        /// <summary>
+        /// Gets the method on the specified type and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the method to find</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached<T>(string name) =>
+            typeof(T).GetMethodCached(name);
+
+        /// <summary>
+        /// Gets the method on the specified static type and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the method to find</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached(this Type T, string name) =>
+            MethodCache.GetOrAddOnNull((T, name), x => x.T.GetMethod(x.name, AllFlags)
+                ?? throw new Exception($"Could not find {nameof(MethodInfo)} on {T.FullName} with the name {name}"));
+
+        /// <summary>
+        /// Gets the method on the specified type and caches it. This overload is used when the method is ambiguous
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the method to find</param>
+        /// <param name="argumentTypes">The types of the argument</param>
+        /// <returns></returns>
+        public static MethodInfo GetMethodCached<T>(string name, Type[] argumentTypes) =>
+            typeof(T).GetMethodCached(name, argumentTypes);
+
+        /// <summary>
+        /// Gets the method on the specified static type and caches it. This overload is used when the method is ambiguous
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="name">The name of the method to find</param>
+        /// <param name="argumentTypes">The types of the argument</param>
+        public static MethodInfo GetMethodCached(this Type T, string name, Type[] argumentTypes) =>
+            OverloadedMethodCache.GetOrAddOnNull((T, name, argumentTypes),
+                x => x.T.GetMethod(x.name, AllFlags, null, x.argumentTypes, null)
+                     ?? throw new Exception($"Could not find {nameof(MethodInfo)} on {T.FullName} with the name {name} and arguments: " +
+                                            $"{string.Join(",", argumentTypes.Select(a => a.FullName))}"));
+
+        /// <summary>
+        /// Invoke a method on the specified object by name
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this object instance, string methodName) =>
+            instance.InvokeMethod<TReturn>(methodName, null);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this Type staticType, string methodName) =>
+            staticType.InvokeMethod<TReturn>(methodName, null);
+
+        /// <summary>
+        /// Invoke a method on the specified object by name
+        /// </summary>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        public static void InvokeMethod(this object instance, string methodName) =>
+            instance.InvokeMethod<object>(methodName);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name
+        /// </summary>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        public static void InvokeMethod(this Type staticType, string methodName) =>
+            staticType.InvokeMethod<object>(methodName);
+
+        /// <summary>
+        /// Invoke a method on the specified object by name with parameters
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this object instance, string methodName,
+            params object[] methodParams) {
+            var methodInfo = (methodParams == null
+                    ? instance.GetType()
+                        .GetMethodCached(methodName)
+                    : instance.GetType()
+                        .GetMethodCached(methodName, methodParams.Select(x => x.GetType()).ToArray())
+                ) ?? throw new Exception($"Could not find method on type {instance.GetType()} with the name of {methodName} with the arguments specified.");
+
+            return (TReturn)methodInfo.GetMethodDelegateCached()(instance, methodParams);
+        }
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name with parameters
+        /// </summary>
+        /// <typeparam name="TReturn">The return type of the method</typeparam>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams">The method parameters</param>
+        /// <returns></returns>
+        public static TReturn InvokeMethod<TReturn>(this Type staticType, string methodName,
+            params object[] methodParams) {
+            var methodInfo = (methodParams == null
+                ? staticType
+                    .GetMethodCached(methodName)
+                : staticType
+                    .GetMethodCached(methodName, methodParams.Select(x => x.GetType()).ToArray()))
+                ?? throw new Exception($"Could not find method on type {staticType} with the name of {methodName} with the arguments specified.");
+
+            return (TReturn)methodInfo.GetMethodDelegateCached()(null, methodParams);
+        }
+
+        /// <summary>
+        /// Invoke a method on the specified object by name with parameters
+        /// </summary>
+        /// <param name="instance">The object to invoke the method on</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        public static void InvokeMethod(this object instance, string methodName, params object[] methodParams) =>
+            instance.InvokeMethod<object>(methodName, methodParams);
+
+        /// <summary>
+        /// Invoke a static method on the specified type by name with parameters
+        /// </summary>
+        /// <param name="staticType">The static type to search</param>
+        /// <param name="methodName">The name of the method to invoke</param>
+        /// <param name="methodParams"></param>
+        public static void InvokeMethod(this Type staticType, string methodName, params object[] methodParams) =>
+            staticType.InvokeMethod<object>(methodName, methodParams);
+
+
+        private static FastReflectionDelegate GetMethodDelegateCached(this MethodInfo methodInfo) =>
+            DelegateCache.GetOrAdd(methodInfo, method => method.CreateFastDelegate());
+
+        #endregion
+
+        #region Class
+
+        /// <summary>
+        /// Gets the constructor on the specified type with specified arguments and caches it
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="argumentTypes">The types of the arguments on the constructor to find</param>
+        /// <returns></returns>
+        public static ConstructorInfo GetConstructorCached<T>(Type[] argumentTypes) =>
+            GetConstructorCached(typeof(T), argumentTypes);
+
+        /// <summary>
+        /// Gets the constructor on the specified static type with specified arguments and caches it
+        /// </summary>
+        /// <param name="T">The type to search</param>
+        /// <param name="argumentTypes">The types of the arguments on the constructor to find</param>
+        /// <returns></returns>
+        public static ConstructorInfo GetConstructorCached(this Type T, Type[] argumentTypes) =>
+            ConstructorCache.GetOrAddOnNull((T, argumentTypes), x => x.T.GetConstructor(x.argumentTypes)
+                ?? throw new Exception($"Could not find {nameof(ConstructorInfo)} on {T.FullName} with the arguments {string.Join(",", argumentTypes.Select(a => a.FullName))}"));
+
+        /// <summary>
+        /// Gets the nested type on the specified type
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedType<T>(string name) =>
+            typeof(T).GetNestedTypeCached(name);
+
+        /// <summary>
+        /// Gets the nested type on the specified type
+        /// </summary>
+        /// <typeparam name="T">The type to search</typeparam>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedTypeCached<T>(string name) =>
+            typeof(T).GetNestedTypeCached(name);
+
+        /// <summary>
+        /// Gets the nested type on the specified static type
+        /// </summary>
+        /// <param name="T">The static type to search</param>
+        /// <param name="name">The name of the nested type to find</param>
+        /// <returns></returns>
+        public static Type GetNestedTypeCached(this Type T, string name) =>
+            NestedTypeCache.GetOrAddOnNull((T, name), x => x.T.GetNestedType(x.name, AllFlags)
+                ?? throw new Exception($"Could not find nested {nameof(Type)} on {T.FullName} with the name {name}"));
+
+        /// <summary>
+        /// Instatiates the specified type
+        /// </summary>
+        /// <param name="type">The type to instantiate</param>
+        /// <returns></returns>
+        public static object Instantiate(this Type type) =>
+            Activator.CreateInstance(type, true);
+
+        /// <summary>
+        /// Instatiates the specified type with specified constructor arguments
+        /// </summary>
+        /// <param name="type">The type to instantiate</param>
+        /// <param name="constructorArguments">The constructor arguments</param>
+        /// <returns></returns>
+        public static object Instantiate(this Type type, params object[] constructorArguments) =>
+            type.GetConstructorCached(constructorArguments.Select(x => x.GetType()).ToArray())
+                .Invoke(constructorArguments);
+
+        /// <summary>
+        /// Instantiates the specified generic type
+        /// </summary>
+        /// <typeparam name="TClass">The type to instantiate</typeparam>
+        /// <param name="typeArgument">The type of the generic type argument</param>
+        /// <returns></returns>
+        public static object InstantiateGeneric<TClass>(this Type typeArgument) =>
+            typeof(TClass).MakeGenericType(typeArgument).Instantiate();
+
+        /// <summary>
+        /// Instantiates the specified generic types
+        /// </summary>
+        /// <typeparam name="TClass">The type to instantiate</typeparam>
+        /// <param name="typeArgument">The types of the generic type arguments</param>
+        /// <returns></returns>
+        public static object InstantiateGeneric<TClass>(this Type[] typeArgument) =>
+            typeof(TClass).MakeGenericType(typeArgument).Instantiate();
+
+        /// <summary>
+        /// Instantiates a list of the specified generic type
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        public static IList InstantiateList(this Type type) =>
+            (IList)typeof(List<>).MakeGenericType(type).Instantiate();
+
+        #endregion
+
+        #region Fast Reflection
+
+        private static GetDelegate<TReturn> CreateGetDelegate<TReturn>(this FieldInfo field) {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(field.FieldType)) {
+                throw new Exception($"Field type {field.FieldType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+
+            var method = new DynamicMethodDefinition($"{field} Getter", typeof(TReturn), new[] { typeof(object) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+                if (field.DeclaringType.GetTypeInfo().IsValueType) {
+                    il.Emit(OpCodes.Unbox_Any, field.DeclaringType);
+                }
+            }
+
+            il.Emit(!field.IsStatic ? OpCodes.Ldfld : OpCodes.Ldsfld, field);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegate<TReturn>)method.Generate().CreateDelegate(typeof(GetDelegate<TReturn>));
+        }
+
+        private static SetDelegate<TValue> CreateSetDelegate<TValue>(this FieldInfo field) {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (!field.FieldType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {field.FieldType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{field} Setter", typeof(void),
+                new[] { typeof(object), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(!field.IsStatic ? OpCodes.Stfld : OpCodes.Stsfld, field);
+
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegate<TValue>)method.Generate().CreateDelegate(typeof(SetDelegate<TValue>));
+        }
+
+        private static SetDelegateRef<TInstance, TValue> CreateSetDelegateRef<TInstance, TValue>(this FieldInfo field) where TInstance : struct {
+            if (field == null) {
+                throw new ArgumentException("Field cannot be null.", nameof(field));
+            }
+
+            if (field.FieldType != typeof(TValue)) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {field.FieldType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{field} SetterByRef", typeof(void),
+                new[] { typeof(TInstance).MakeByRefType(), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            if (!field.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(!field.IsStatic ? OpCodes.Stfld : OpCodes.Stsfld, field);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegateRef<TInstance, TValue>)method.Generate().CreateDelegate(typeof(SetDelegateRef<TInstance, TValue>));
+        }
+
+        private static GetDelegate<TReturn> CreateGetDelegate<TReturn>(this PropertyInfo property) {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(property.PropertyType)) {
+                throw new Exception($"Field type {property.PropertyType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Getter", typeof(TReturn), new[] { typeof(object) });
+            var il = method.GetILProcessor();
+
+            var getMethod = property.GetGetMethod(nonPublic: true);
+
+            if (!getMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Call, getMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegate<TReturn>)method.Generate().CreateDelegate(typeof(GetDelegate<TReturn>));
+        }
+
+        private static GetDelegateRef<TInstance, TReturn> CreateGetDelegate<TInstance, TReturn>(this PropertyInfo property) where TInstance : struct {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!typeof(TReturn).IsAssignableFrom(property.PropertyType)) {
+                throw new Exception($"Field type {property.PropertyType} does not match the requested type {typeof(TReturn)}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Getter", typeof(TReturn), new[] { typeof(TInstance).MakeByRefType() });
+            var il = method.GetILProcessor();
+
+            // Cache this as well?
+            var getMethod = property.GetGetMethod(nonPublic: true);
+
+            if (!getMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Call, getMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (GetDelegateRef<TInstance, TReturn>)method.Generate().CreateDelegate(typeof(GetDelegateRef<TInstance, TReturn>));
+        }
+
+
+        private static SetDelegate<TValue> CreateSetDelegate<TValue>(this PropertyInfo property) {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!property.PropertyType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {property.PropertyType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} Setter", typeof(void),
+                new[] { typeof(object), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            var setMethod = property.GetSetMethod(true);
+
+            if (!setMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(OpCodes.Call, setMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegate<TValue>)method.Generate().CreateDelegate(typeof(SetDelegate<TValue>));
+        }
+
+        private static SetDelegateRef<TInstance, TValue> CreateSetDelegateRef<TInstance, TValue>(this PropertyInfo property) where TInstance : struct {
+            if (property == null) {
+                throw new ArgumentException("Property cannot be null.", nameof(property));
+            }
+
+            if (!property.PropertyType.IsAssignableFrom(typeof(TValue))) {
+                throw new Exception($"Value type type {typeof(TValue)} does not match the requested type {property.PropertyType}.");
+            }
+
+            var method = new DynamicMethodDefinition($"{property} SetterByRef", typeof(void),
+                new[] { typeof(TInstance).MakeByRefType(), typeof(TValue) });
+            var il = method.GetILProcessor();
+
+            var setMethod = property.GetSetMethod(true);
+
+            if (!setMethod.IsStatic) {
+                il.Emit(OpCodes.Ldarg_0);
+            }
+
+            il.Emit(OpCodes.Ldarg_1);
+            il.Emit(OpCodes.Call, setMethod);
+            il.Emit(OpCodes.Ret);
+
+            return (SetDelegateRef<TInstance, TValue>)method.Generate().CreateDelegate(typeof(SetDelegateRef<TInstance, TValue>));
+        }
+
+        // Partial hack from https://github.com/0x0ade/MonoMod/blob/master/MonoMod.Utils/FastReflectionHelper.cs
+        // to get fast call delegates
+        //private static CallDelegate GenerateCallDelegate(this MethodInfo method) {
+        //    if (method == null) {
+        //        throw new ArgumentException("Method cannot be null.", nameof(method));
+        //    }
+
+        //    var dmd = new DynamicMethodDefinition(
+        //        $"CallDelegate<{method.Name}>", typeof(object), new[] { typeof(object), typeof(object[]) });
+        //    var il = dmd.GetILProcessor();
+
+        //    var args = method.GetParameters();
+
+        //    if (!method.IsStatic) {
+        //        il.Emit(OpCodes.Ldarg_0);
+        //        if (method.DeclaringType.GetTypeInfo().IsValueType) {
+        //            il.Emit(OpCodes.Unbox_Any, method.DeclaringType);
+        //        }
+        //    }
+
+        //    for (var i = 0; i < args.Length; i++) {
+        //        var argType = args[i].ParameterType;
+        //        var argIsByRef = argType.IsByRef;
+        //        if (argIsByRef)
+        //            argType = argType.GetElementType();
+        //        var argIsValueType = argType.GetTypeInfo().IsValueType;
+
+        //        if (argIsByRef && argIsValueType) {
+        //            // Used later when storing back the reference to the new box in the array.
+        //            il.Emit(OpCodes.Ldarg_1);
+        //            il.EmitFast_Ldc_I4(i);
+        //        }
+
+        //        il.Emit(OpCodes.Ldarg_1);
+        //        il.EmitFast_Ldc_I4(i);
+
+        //        if (argIsByRef && !argIsValueType) {
+        //            il.Emit(OpCodes.Ldelema, typeof(object));
+        //        }
+        //        else {
+        //            il.Emit(OpCodes.Ldelem_Ref);
+        //            if (!argIsValueType) continue;
+        //            il.Emit(!argIsByRef ? OpCodes.Unbox_Any : OpCodes.Unbox, argType);
+        //        }
+        //    }
+
+        //    if (method.IsFinal || !method.IsVirtual) {
+        //        il.Emit(OpCodes.Call, method);
+        //    }
+        //    else {
+        //        il.Emit(OpCodes.Callvirt, method);
+        //    }
+
+        //    var returnType = method.IsConstructor ? method.DeclaringType : method.ReturnType;
+        //    if (returnType != typeof(void)) {
+        //        if (returnType.GetTypeInfo().IsValueType) {
+        //            il.Emit(OpCodes.Box, returnType);
+        //        }
+        //    }
+        //    else {
+        //        il.Emit(OpCodes.Ldnull);
+        //    }
+
+        //    il.Emit(OpCodes.Ret);
+
+        //    return (CallDelegate) dmd.Generate().CreateDelegate(typeof(CallDelegate));
+        //}
+
+        // https://github.com/0x0ade/MonoMod/blob/master/MonoMod.Utils/FastReflectionHelper.cs
+        public static void EmitFast_Ldc_I4(this ILProcessor il, int value) {
+            switch (value) {
+                case -1:
+                    il.Emit(OpCodes.Ldc_I4_M1);
+                    return;
+                case 0:
+                    il.Emit(OpCodes.Ldc_I4_0);
+                    return;
+                case 1:
+                    il.Emit(OpCodes.Ldc_I4_1);
+                    return;
+                case 2:
+                    il.Emit(OpCodes.Ldc_I4_2);
+                    return;
+                case 3:
+                    il.Emit(OpCodes.Ldc_I4_3);
+                    return;
+                case 4:
+                    il.Emit(OpCodes.Ldc_I4_4);
+                    return;
+                case 5:
+                    il.Emit(OpCodes.Ldc_I4_5);
+                    return;
+                case 6:
+                    il.Emit(OpCodes.Ldc_I4_6);
+                    return;
+                case 7:
+                    il.Emit(OpCodes.Ldc_I4_7);
+                    return;
+                case 8:
+                    il.Emit(OpCodes.Ldc_I4_8);
+                    return;
+            }
+
+            if (value > -129 && value < 128)
+                il.Emit(OpCodes.Ldc_I4_S, (sbyte)value);
+            else
+                il.Emit(OpCodes.Ldc_I4, value);
+        }
+
+        public static byte ReadLocalIndex(OpCode opCode, object operand) {
+            if (opCode == OpCodes.Ldloc_0 || opCode == OpCodes.Stloc_0) {
+                return 0;
+            }
+            if (opCode == OpCodes.Ldloc_1 || opCode == OpCodes.Stloc_1) {
+                return 1;
+            }
+            if (opCode == OpCodes.Ldloc_2 || opCode == OpCodes.Stloc_2) {
+                return 2;
+            }
+            if (opCode == OpCodes.Ldloc_3 || opCode == OpCodes.Stloc_3) {
+                return 3;
+            }
+            if (opCode == OpCodes.Ldloc_S || opCode == OpCodes.Stloc_S) {
+                return (byte)operand;
+            }
+
+            throw new Exception($"Could not read index for opcode and operand: {opCode} - {operand}");
+        }
+
+        #endregion
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource method of type MonoMod.Utils.DynamicMethodDefinition in method "Reflection$GetDelegateRef`2<TInstance,T> Reflection.CreateGetDelegate(PropertyInfo)".
+
+### Severity:
+ERROR
+
+### Procedure:
+Reflection$GetDelegateRef`2<TInstance,T> Reflection.CreateGetDelegate(PropertyInfo)
+
+### File:
+R2API/Utils/Reflection.cs
+
+### Key:
+Reflection.cs|CreateGetDelegate|DOTNET_RESOURCE_LEAK
+
+### Hash:
+bfc0ebc68cc4be799f26f2fc387c8f4b
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0534/instruction.md

@@ -0,0 +1,1068 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** USharp
+**Bug ID:** 6
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using UnrealEngine.Engine;
+
+namespace UnrealEngine.Runtime
+{
+    public partial class CodeGenerator
+    {
+        private Dictionary<UStruct, StructInfo> structInfos = new Dictionary<UStruct, StructInfo>();
+
+        // Helper for working with function info to determine function hierarchy (implemented interface functions,
+        // virtual functions, override functions, redeclared functions, etc)
+        class FunctionInfo
+        {
+            // The function we are working with
+            UFunction Function { get; set; }
+
+            // The direct super function (used if this is an overridden function)
+            UFunction SuperFunction { get; set; }
+
+            // The super-most function in a virtual/override chain
+            UFunction SupermostFunction { get; set; }
+
+            // The original function in the class hierarchy (searched obtained by function name)
+            // - This can be different to SupermostFunction where the function chain is broken
+            UFunction OriginalFunction { get; set; }
+        
+            void callme()
+            {
+                Function.GetSuperFunction();
+            }
+        }
+
+        // Holds onto structure info (UClass, UScriptStruct) and info on if blittable and collapsed functions
+        class StructInfo
+        {
+            private CodeGenerator codeGenerator;
+
+            public bool IsBlueprintType { get; private set; }
+            public UStruct Struct { get; private set; }
+            public UScriptStruct ScriptStruct { get; private set; }
+            public UClass Class { get; private set; }            
+            public bool IsClass { get; private set; }
+            public bool IsStruct { get; private set; }
+            public bool IsInterface { get; private set; }
+            public bool IsBlittable { get; private set; }
+
+            /// <summary>
+            /// This is a struct but it should be generated as a class.
+            /// </summary>
+            public bool StructAsClass { get; private set; }
+
+            // <UProperty, BPStructVarName (null for non BP struct vars)>
+            private Dictionary<UProperty, string> allProperties = new Dictionary<UProperty, string>();
+            private Dictionary<UProperty, string> nonExportableProperties = new Dictionary<UProperty, string>();
+            private Dictionary<UProperty, string> exportableProperties = new Dictionary<UProperty, string>();
+
+            private List<UFunction> allFunctions = new List<UFunction>();
+            private List<UFunction> nonExportableFunctions = new List<UFunction>();
+            private List<UFunction> exportableFunctions = new List<UFunction>();
+
+            private List<CollapsedMember> collapsedMembers = new List<CollapsedMember>();
+            private Dictionary<UFunction, CollapsedMember> collapsedMembersByFunction = new Dictionary<UFunction, CollapsedMember>();
+            private Dictionary<UProperty, CollapsedMember> collapsedMembersByProperty = new Dictionary<UProperty, CollapsedMember>();
+
+            private NameConflictInfo conflictInfo;
+
+            public bool HasStaticFunction { get; private set; }
+            public bool HasStaticNonExportableFunction { get; set; }
+
+            public bool HasContent
+            {
+                get { return exportableProperties.Count > 0 || exportableFunctions.Count > 0; }
+            }
+
+            public StructInfo(CodeGenerator codeGenerator, UStruct unrealStruct, bool isBlueprintType)
+            {
+                this.codeGenerator = codeGenerator;
+                IsBlueprintType = isBlueprintType;
+                Struct = unrealStruct;
+                ScriptStruct = unrealStruct as UScriptStruct;
+                Class = unrealStruct as UClass;
+                IsClass = Class != null;
+                IsStruct = ScriptStruct != null;
+                IsInterface = unrealStruct.IsChildOf<UInterface>();
+
+                if (IsStruct)
+                {
+                    // Start with a IsPlainOldData check for initial IsBlittable state. Is this enough? Or too verbose?
+                    // - May need to take into account non-zero constructor / EForceInit constructor if IsBlittable state
+                    //   is used for construction. However since IsBlittable is only currently used to determine marshaling
+                    //   using FromNative / ToNative on existing memory the ctor check shouldn't be required.
+                    // - The user can use StructDefault<T>.Value if they want a new native default instance of a struct 
+                    //   which will use the UScriptStruct.IsPODZeroInit check.
+                    IsBlittable = ScriptStruct.StructFlags.HasFlag(EStructFlags.IsPlainOldData);
+
+                    if (codeGenerator.Settings.AlwaysGenerateStructsAsClasses)
+                    {
+                        StructAsClass = true;
+                    }
+                    else if (codeGenerator.Settings.StructsAsClassesByPath.Contains(unrealStruct.GetPathName().ToLower()))
+                    {
+                        StructAsClass = true;
+                    }
+
+                    if (StructAsClass)
+                    {
+                        // Can't use blittable functions if the struct is being generated as a class
+                        IsBlittable = false;
+                    }
+                }
+            }
+
+            /// <summary>
+            /// Post process the struct after adding all of the members
+            /// </summary>
+            public void PostProcess()
+            {
+                if (IsStruct && !StructAsClass)
+                {
+                    if (IsBlittable)
+                    {
+                        if (codeGenerator.Settings.StructsAsClassesAtXProps_Blittable > 0 &&
+                            exportableProperties.Count >= codeGenerator.Settings.StructsAsClassesAtXProps_Blittable)
+                        {
+                            IsBlittable = false;
+                            StructAsClass = true;
+                        }
+                    }
+                    else
+                    {
+                        if (codeGenerator.Settings.StructsAsClassesAtXProps_NonBlittable > 0 &&
+                            exportableProperties.Count >= codeGenerator.Settings.StructsAsClassesAtXProps_NonBlittable)
+                        {
+                            StructAsClass = true;
+                        }
+                    }
+
+                    if (!StructAsClass)
+                    {
+                        ProjectDefinedType structureType;
+                        if (projectDefinedTypes.TryGetValue(Struct.GetPathName(), out structureType))
+                        {
+                            if (structureType == ProjectDefinedType.BlittableStruct)
+                            {
+                                IsBlittable = true;
+                            }
+                            else if (structureType == ProjectDefinedType.Struct)
+                            {
+                                IsBlittable = false;
+                            }
+                        }
+                    }
+                }
+            }
+
+            public IEnumerable<UProperty> GetProperties()
+            {
+                return exportableProperties.Keys;
+            }
+
+            public IEnumerable<UFunction> GetFunctions()
+            {
+                return exportableFunctions;
+            }
+
+            public IEnumerable<CollapsedMember> GetCollapsedMembers()
+            {
+                return collapsedMembers;
+            }
+
+            public bool IsCollapsedProperty(UProperty property)
+            {
+                return collapsedMembersByProperty.ContainsKey(property);
+            }
+
+            public bool IsCollapsedFunction(UFunction function)
+            {
+                return collapsedMembersByFunction.ContainsKey(function);
+            }
+
+            /// <summary>
+            /// Gets the custom property name (blueprint struct var names)
+            /// </summary>
+            public string GetPropertyName(UProperty property)
+            {
+                string propertyName;
+                exportableProperties.TryGetValue(property, out propertyName);
+                return propertyName;
+            }
+
+            public void AddProperty(UProperty property, string bpVarName, bool exportable)
+            {
+                // If the ScriptName metadata is set use that for the property name instead
+                string scriptName = property.GetMetaData(MDProp.ScriptName);
+                if (!string.IsNullOrEmpty(scriptName))
+                {
+                    bpVarName = scriptName;
+                }
+
+                allProperties.Add(property, bpVarName);
+
+                if (exportable)
+                {
+                    exportableProperties.Add(property, bpVarName);
+                    if (IsBlittable && (!codeGenerator.IsBlittablePropertyType(property) || property.IsFixedSizeArray))
+                    {
+                        IsBlittable = false;
+                    }
+                }
+                else
+                {
+                    nonExportableProperties.Add(property, bpVarName);
+
+                    // This property isn't being exported, our struct size wont match the real struct size
+                    IsBlittable = false;
+                }
+            }
+
+            public void AddFunction(UFunction function, bool exportable)
+            {
+                allFunctions.Add(function);
+
+                if (exportable)
+                {
+                    exportableFunctions.Add(function);
+                    if (function.HasAnyFunctionFlags(EFunctionFlags.Static))
+                    {
+                        HasStaticFunction = true;
+                    }
+                }
+                else
+                {
+                    nonExportableFunctions.Add(function);
+                    if (function.HasAnyFunctionFlags(EFunctionFlags.Static))
+                    {
+                        HasStaticNonExportableFunction = true;
+                    }
+                }
+            }
+
+            public void ResolveCollapsedMembers()
+            {
+                if (IsInterface || !codeGenerator.Settings.UseCollapsedMembers)
+                {
+                    // Interface shouldn't have any C# properties, leave everything as functions
+                    ResolveNameConflicts();
+                    return;
+                }
+
+                collapsedMembers.Clear();
+                collapsedMembersByFunction.Clear();
+                collapsedMembersByProperty.Clear();
+
+                var getters = new Dictionary<UFunction, CodeGeneratorSettings.CollapsedMemberSettings>();
+                var setters = new Dictionary<UFunction, CodeGeneratorSettings.CollapsedMemberSettings>();
+
+                // Conflicts aren't resolved at this point. May have multiple functions for a given name.
+                // - If there are conflicts avoid collapsing those functions.
+                Dictionary<string, List<UFunction>> gettersByName = new Dictionary<string, List<UFunction>>();
+                Dictionary<string, List<UFunction>> settersByName = new Dictionary<string, List<UFunction>>();
+
+                foreach (UFunction function in exportableFunctions)
+                {
+                    string functionName = codeGenerator.GetFunctionName(function, false);
+
+                    // 1 param either as return value or parameter and no return
+                    if (function.NumParms == 1)
+                    {
+                        UProperty returnProperty = function.GetReturnProperty();
+                        if (returnProperty != null)
+                        {
+                            // Getter
+                            foreach (var collapsedSetting in codeGenerator.Settings.CollapsedMembers)
+                            {
+                                if (!string.IsNullOrEmpty(collapsedSetting.GetPrefix) &&
+                                    functionName.StartsWith(collapsedSetting.GetPrefix) &&
+                                    (!collapsedSetting.RequiresBool || returnProperty.IsA<UBoolProperty>()))
+                                {
+                                    getters.Add(function, collapsedSetting);
+
+                                    string trimmedName = functionName.Substring(collapsedSetting.GetPrefix.Length);
+                                    if (trimmedName.Length > 0)
+                                    {
+                                        List<UFunction> functions;
+                                        if (!gettersByName.TryGetValue(trimmedName, out functions))
+                                        {
+                                            gettersByName.Add(trimmedName, functions = new List<UFunction>());
+                                        }
+                                        functions.Add(function);
+                                    }
+                                    break;
+                                }
+                            }
+                        }
+                        else
+                        {
+                            // Setter
+                            UProperty firstParam = function.GetFirstParam();
+                            if (firstParam != null)
+                            {
+                                foreach (var collapsedSetting in codeGenerator.Settings.CollapsedMembers)
+                                {
+                                    if (!string.IsNullOrEmpty(collapsedSetting.SetPrefix) &&
+                                        functionName.StartsWith(collapsedSetting.SetPrefix) &&
+                                        (!collapsedSetting.RequiresBool || firstParam.IsA<UBoolProperty>()))
+                                    {
+                                        setters.Add(function, collapsedSetting);
+
+                                        string trimmedName = functionName.Substring(collapsedSetting.GetPrefix.Length);
+                                        if (trimmedName.Length > 0)
+                                        {
+                                            List<UFunction> functions;
+                                            if (!settersByName.TryGetValue(trimmedName, out functions))
+                                            {
+                                                settersByName.Add(trimmedName, functions = new List<UFunction>());
+                                            }
+                                            functions.Add(function);
+                                        }
+                                        break;
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+
+                for (int i = 0; i < 2; i++)
+                {
+                    bool isGetter = i == 0;
+                    Dictionary<string, List<UFunction>> collection = isGetter ? gettersByName : settersByName;                    
+
+                    foreach (KeyValuePair<string, List<UFunction>> funcs in collection)
+                    {
+                        if (funcs.Value.Count != 1)
+                        {
+                            continue;
+                        }
+
+                        string name = funcs.Key;
+                        UFunction getter = isGetter ? funcs.Value[0] : null;
+                        UFunction setter = !isGetter ? funcs.Value[0] : null;
+                        CodeGeneratorSettings.CollapsedMemberSettings settings = null;
+                        UProperty paramOrRetValProperty = null;
+
+                        Dictionary<string, List<UFunction>> otherCollection = isGetter ? settersByName : gettersByName;
+                        List<UFunction> otherFuncs;
+                        if (otherCollection.TryGetValue(funcs.Key, out otherFuncs))
+                        {
+                            if (otherFuncs.Count > 1)
+                            {
+                                // Other function has a conflict
+                                continue;
+                            }
+
+                            if (isGetter)
+                            {
+                                setter = otherFuncs[0];
+                            }
+                            else
+                            {
+                                getter = otherFuncs[0];
+                            }
+                        }
+
+                        if ((getter != null && collapsedMembersByFunction.ContainsKey(getter)) ||
+                            (setter != null && collapsedMembersByFunction.ContainsKey(setter)))
+                        {
+                            continue;
+                        }
+
+                        if (getter != null && setter != null)
+                        {
+                            UProperty returnProperty = getter.GetReturnProperty();
+                            UProperty firstParam = setter.GetFirstParam();
+                            if (returnProperty != null && firstParam != null && !returnProperty.SameType(firstParam))
+                            {
+                                // Property type mismatch on Get/Set functions
+                                continue;
+                            }
+                        }
+
+                        if (getter != null)
+                        {
+                            paramOrRetValProperty = getter.GetReturnProperty();
+                            settings = getters[getter];
+                        }
+                        else if (setter != null)
+                        {
+                            paramOrRetValProperty = setter.GetFirstParam();
+                            settings = setters[setter];
+                        }
+
+                        if (paramOrRetValProperty == null)
+                        {
+                            continue;
+                        }
+
+                        UProperty backingProperty = null;
+                        bool backingPropertyExportable = false;
+
+                        foreach (KeyValuePair<UProperty, string> property in exportableProperties)
+                        {
+                            if (name == codeGenerator.GetMemberName(property.Key, false, property.Value) &&
+                                property.Key.SameType(paramOrRetValProperty))
+                            {
+                                if (backingProperty != null)
+                                {
+                                    // Skip conflicts
+                                    continue;
+                                }
+                                backingProperty = property.Key;
+                                backingPropertyExportable = true;                                
+                            }
+                        }
+
+                        if (backingProperty == null)
+                        {
+                            foreach (KeyValuePair<UProperty, string> property in nonExportableProperties)
+                            {
+                                if (name == codeGenerator.GetMemberName(property.Key, false, property.Value) &&
+                                    property.Key.SameType(paramOrRetValProperty))
+                                {
+                                    if (backingProperty != null)
+                                    {
+                                        // Skip conflicts
+                                        continue;
+                                    }
+                                    backingProperty = property.Key;
+                                    backingPropertyExportable = false;
+                                }
+                            }
+                        }
+
+                        if (getter == null && setter != null)
+                        {
+                            // SetXXX exists but there isn't a backing property or the backing property isn't
+                            // exportable so there wouldn't be any way access the property. Leave the function
+                            // as it is rather than creating a setter-only C# property unless the getter is injected.
+                            if (backingProperty == null || (!backingPropertyExportable && !settings.InjectNonExportableProperty))
+                            {
+                                continue;
+                            }
+                            if (settings.SetRequiresGet)
+                            {
+                                continue;
+                            }
+                        }
+                        else if (getter != null && setter == null)
+                        {
+                            if (settings.GetRequiresSet)
+                            {
+                                continue;
+                            }
+                        }
+
+                        if ((getter != null && getter.HasAllFunctionFlags(EFunctionFlags.BlueprintEvent)) ||
+                            (setter != null && setter.HasAnyFunctionFlags(EFunctionFlags.BlueprintEvent)))
+                        {
+                            // Skip events as they need a normal method body
+                            continue;
+                        }
+
+                        string finalName = name;
+                        if (!settings.StripPrefix && (getter == null || setter == null))
+                        {
+                            if (getter != null)
+                            {
+                                finalName = settings.GetPrefix + finalName;
+                            }
+                            else if (setter != null)
+                            {
+                                finalName = settings.SetPrefix + finalName;
+                            }
+                        }
+
+                        if (backingProperty != null && backingProperty.HasAnyPropertyFlags(EPropertyFlags.BlueprintReadOnly) &&
+                            IsCollectionProperty(backingProperty) && setter != null)
+                        {
+                            // If there is a backing property which is a readonly collection and there is a setter method then
+                            // there will be type conflicts. Don't collapse them.
+                            continue;
+                        }
+
+                        // Some validation on bool properties
+                        {
+                            UBoolProperty getterReturn = getter == null ? null : getter.GetReturnProperty() as UBoolProperty;
+                            UBoolProperty setterParam = setter == null ? null : setter.GetFirstParam() as UBoolProperty;
+
+                            if (getterReturn != null && setterParam != null)
+                            {
+                                System.Diagnostics.Debug.Assert(getterReturn.ElementSize == setterParam.ElementSize,
+                                    "Get/Set use different bool size");
+                            }
+
+                            UBoolProperty backingBoolProperty = backingProperty as UBoolProperty;
+                            if (backingBoolProperty != null)
+                            {
+                                if (getter != null)
+                                {
+                                    System.Diagnostics.Debug.Assert(backingBoolProperty.ElementSize == getterReturn.ElementSize,
+                                    "BackingProperty/Get use different bool size");
+                                }
+                                else if (setter != null)
+                                {
+                                    System.Diagnostics.Debug.Assert(backingBoolProperty.ElementSize == setterParam.ElementSize,
+                                    "BackingProperty/Set use different bool size");
+                                }
+                            }
+                        }
+
+                        CollapsedMember collapsedMember = new CollapsedMember(settings);
+                        collapsedMember.BackingProperty = backingProperty;
+                        collapsedMember.IsBackingPropertyExportable = backingPropertyExportable;                        
+                        collapsedMember.Getter = getter;
+                        collapsedMember.Setter = setter;
+                        collapsedMember.Name = finalName;
+                        collapsedMember.Property = paramOrRetValProperty;
+                        collapsedMembers.Add(collapsedMember);
+                        if (getter != null)
+                        {
+                            collapsedMembersByFunction.Add(getter, collapsedMember);
+                        }
+                        if (setter != null)
+                        {
+                            collapsedMembersByFunction.Add(setter, collapsedMember);
+                        }
+                        if (backingPropertyExportable)
+                        {
+                            collapsedMembersByProperty.Add(backingProperty, collapsedMember);
+                        }
+                    }
+                }
+
+                ResolveNameConflicts();
+            }
+
+            private void ResolveNameConflicts()
+            {
+                List<NameConflictInfo> baseConflictInfos = new List<NameConflictInfo>();
+
+                UStruct parentStruct = Struct.GetSuperStruct();
+                if (parentStruct != null)
+                {
+                    StructInfo parentInfo = codeGenerator.GetStructInfo(parentStruct);
+                    if (parentInfo != null && parentInfo.conflictInfo != null)
+                    {
+                        baseConflictInfos.Add(parentInfo.conflictInfo);
+                    }
+                }
+
+                if (Class != null)
+                {
+                    foreach (FImplementedInterface implementedInterface in Class.Interfaces)
+                    {
+                        UClass interfaceClass = implementedInterface.InterfaceClass;
+                        if (interfaceClass != null)
+                        {
+                            StructInfo interfaceInfo = codeGenerator.GetStructInfo(interfaceClass);
+                            if (interfaceInfo != null && interfaceInfo.conflictInfo != null)
+                            {
+                                baseConflictInfos.Add(interfaceInfo.conflictInfo);
+                            }
+                        }
+                    }
+                }
+
+                conflictInfo = new NameConflictInfo(this);
+
+                foreach (KeyValuePair<UProperty, string> property in exportableProperties)
+                {
+                    conflictInfo.AddMember(property.Key, codeGenerator.GetMemberName(property.Key, false, property.Value));
+                }
+
+                foreach (UFunction function in exportableFunctions)
+                {
+                    // Functions are a special case. They can be redefined in the hierarchy but for name resolving
+                    // we want them to have the same name throughout. Therefore only resolve the base-most function
+                    // name (even if redefined later in the hierarchy). Then when we do a name conflict lookup find that
+                    // base-most function and use that name for all of the functions in the hierarchy with that name.
+                    // - This is lookup is done in ResolveNameConflict().
+                    if (codeGenerator.GetOriginalFunctionOwner(function) == Class)
+                    {
+                        conflictInfo.AddMember(function, codeGenerator.GetFunctionName(function, false));
+                    }
+                }
+
+                foreach (NameConflictInfo baseConflictInfo in baseConflictInfos)
+                {
+                    foreach (KeyValuePair<string, NameConflictFieldInfo> baseMembersByName in baseConflictInfo.MembersByName)
+                    {
+                        NameConflictFieldInfo baseMembers;
+                        if (!conflictInfo.BaseMembersByName.TryGetValue(baseMembersByName.Key, out baseMembers))
+                        {
+                            conflictInfo.BaseMembersByName.Add(baseMembersByName.Key,
+                                baseMembers = new NameConflictFieldInfo(baseMembersByName.Key));
+                        }
+
+                        foreach (KeyValuePair<UField, CollapsedMember> baseMember in baseMembersByName.Value.Fields)
+                        {
+                            baseMembers.AddField(baseMember.Key, baseMember.Value);
+                        }
+                    }
+
+                    foreach (KeyValuePair<string, NameConflictFieldInfo> baseBaseMembersByName in baseConflictInfo.BaseMembersByName)
+                    {
+                        NameConflictFieldInfo baseBaseMembers;
+                        if (!conflictInfo.BaseMembersByName.TryGetValue(baseBaseMembersByName.Key, out baseBaseMembers))
+                        {
+                            conflictInfo.BaseMembersByName.Add(baseBaseMembersByName.Key,
+                                baseBaseMembers = new NameConflictFieldInfo(baseBaseMembersByName.Key));
+                        }
+
+                        foreach (KeyValuePair<UField, CollapsedMember> baseBaseMember in baseBaseMembersByName.Value.Fields)
+                        {
+                            baseBaseMembers.AddField(baseBaseMember.Key, baseBaseMember.Value);
+                        }
+                    }
+                }
+
+                var tempMembersByName = new Dictionary<string, NameConflictFieldInfo>(conflictInfo.MembersByName);
+
+                foreach (KeyValuePair<string, NameConflictFieldInfo> membersByName in tempMembersByName)
+                {
+                    // What about overridden functions? where do they appear?
+                    if (membersByName.Value.HasConflict() || conflictInfo.BaseMembersByName.ContainsKey(membersByName.Key))
+                    {
+                        foreach (KeyValuePair<UField, CollapsedMember> field in membersByName.Value.Fields)
+                        {
+                            if (field.Value == null)
+                            {
+                                string hashedName = membersByName.Key + "_" + field.Key.GetPathName().GetHashCode().ToString("X8");
+                                NameConflictResolved(field.Key, hashedName);
+                            }
+                        }
+
+                        foreach (KeyValuePair<CollapsedMember, List<UField>> collapsedMember in membersByName.Value.FieldsByCollapsedMember)
+                        {
+                            UField field = null;
+                            if (collapsedMember.Key.Getter != null)
+                            {
+                                field = collapsedMember.Key.Getter;
+                            }
+                            else if (collapsedMember.Key.Setter != null)
+                            {
+                                field = collapsedMember.Key.Setter;
+                            }
+                            else if (collapsedMember.Key.BackingProperty != null)
+                            {
+                                field = collapsedMember.Key.BackingProperty;
+                            }
+                            
+                            string hashedName = membersByName.Key + "_" + field.GetPathName().GetHashCode().ToString("X8");
+                            if (collapsedMember.Key.Getter != null)
+                            {
+                                NameConflictResolved(collapsedMember.Key.Getter, hashedName);
+                            }
+                            if (collapsedMember.Key.Setter != null)
+                            {
+                                NameConflictResolved(collapsedMember.Key.Setter, hashedName);
+                            }
+                            if (collapsedMember.Key.BackingProperty != null)
+                            {
+                                NameConflictResolved(collapsedMember.Key.BackingProperty, hashedName);
+                            }
+                        }
+
+                        // All fields with this name should have been renamed. Remove the old name.
+                        conflictInfo.MembersByName.Remove(membersByName.Key);
+                    }
+                }
+            }
+
+            private void NameConflictResolved(UField field, string resolvedName)
+            {                
+                int conflictIndex = -1;
+                string baseResolvedName = null;
+                while (conflictInfo.MembersByName.ContainsKey(resolvedName) || conflictInfo.BaseMembersByName.ContainsKey(resolvedName))
+                {
+                    // The resolved name has as a conflict (double conflict) - rename until no more conflicts
+                    if (conflictIndex == -1)
+                    {
+                        conflictIndex = 1;
+                        baseResolvedName = resolvedName;
+                    }
+                    
+                    resolvedName = baseResolvedName + "_" + conflictIndex;
+                    conflictIndex++;
+                }
+
+                conflictInfo.AddResolvedMember(field, resolvedName);
+                conflictInfo.ResolvedName[field] = resolvedName;
+            }
+
+            public string ResolveNameConflict(UField field, string name)
+            {
+                UFunction function = field as UFunction;
+                if (function != null)
+                {
+                    // Functions are a special case and must use the base-most function for name resolving.
+                    // See above for more info on this.
+                    UFunction originalFunction;
+                    UClass originalOwner = codeGenerator.GetOriginalFunctionOwner(function, out originalFunction);
+                    if (originalOwner != Class)
+                    {
+                        StructInfo originalOwnerStructInfo = codeGenerator.GetStructInfo(originalOwner);
+                        return originalOwnerStructInfo.ResolveNameConflict(originalFunction, name);
+                    }
+                }
+
+                string resolvedName;
+                if (conflictInfo.ResolvedName.TryGetValue(field, out resolvedName))
+                {
+                    return resolvedName;
+                }
+
+                return name;
+            }
+
+            class NameConflictInfo
+            {
+                private StructInfo structInfo;
+
+                // MembersByName names are updated where there are name conflicts
+                // BaseMembersByName is set to base types MembersByName (chained to all base types)
+                public Dictionary<string, NameConflictFieldInfo> BaseMembersByName { get; private set; }// <Name(ResolvedName if name is a conflict), Member>
+                public Dictionary<string, NameConflictFieldInfo> MembersByName { get; private set; }// <Name(ResolvedName if name is a conflict), Member>
+                public Dictionary<UField, string> ResolvedName { get; private set; }// <Member, ResolvedName>
+
+                public NameConflictInfo(StructInfo structInfo)
+                {
+                    this.structInfo = structInfo;
+                    BaseMembersByName = new Dictionary<string, NameConflictFieldInfo>();
+                    MembersByName = new Dictionary<string, NameConflictFieldInfo>();
+                    ResolvedName = new Dictionary<UField, string>();
+                }
+
+                public void AddMember(UField field, string name)
+                {
+                    AddMember(field, name, false);
+                }
+
+                public void AddResolvedMember(UField field, string name)
+                {
+                    AddMember(field, name, true);
+                }
+
+                private void AddMember(UField field, string name, bool isResolvedName)
+                {
+                    CollapsedMember collapsedMember = null;
+
+                    UProperty property = field as UProperty;
+                    if (property != null)
+                    {
+                        structInfo.collapsedMembersByProperty.TryGetValue(property, out collapsedMember);
+                    }
+
+                    UFunction function = field as UFunction;
+                    if (function != null)
+                    {
+                        structInfo.collapsedMembersByFunction.TryGetValue(function, out collapsedMember);
+                    }
+
+                    if (collapsedMember != null)
+                    {
+                        if (isResolvedName)
+                        {
+                            collapsedMember.ResolvedName = name;
+                        }
+                        else
+                        {
+                            name = collapsedMember.Name;
+                        }                        
+                    }
+
+                    NameConflictFieldInfo fieldInfo;
+                    if (!MembersByName.TryGetValue(name, out fieldInfo))
+                    {
+                        MembersByName.Add(name, fieldInfo = new NameConflictFieldInfo(name));
+                    }
+                    fieldInfo.AddField(field, collapsedMember);
+                }
+            }
+
+            class NameConflictFieldInfo
+            {
+                public string Name { get; set; }
+                public Dictionary<UField, CollapsedMember> Fields { get; private set; }
+                public Dictionary<CollapsedMember, List<UField>> FieldsByCollapsedMember { get; private set; }
+
+                public NameConflictFieldInfo(string name)
+                {
+                    Name = name;
+                    Fields = new Dictionary<UField, CollapsedMember>();
+                    FieldsByCollapsedMember = new Dictionary<CollapsedMember, List<UField>>();
+                }
+
+                public IEnumerable<UField> GetFields()
+                {
+                    return Fields.Keys;
+                }
+
+                public bool IsCollapsed(UField field)
+                {
+                    CollapsedMember collapsed;
+                    return Fields.TryGetValue(field, out collapsed) && collapsed != null;
+                }
+
+                public void AddField(UField field, CollapsedMember collapsedMember)
+                {
+                    Fields[field] = collapsedMember;
+                    if (collapsedMember != null)
+                    {
+                        List<UField> fields;
+                        if (!FieldsByCollapsedMember.TryGetValue(collapsedMember, out fields))
+                        {
+                            FieldsByCollapsedMember.Add(collapsedMember, fields = new List<UField>());
+                        }
+                        fields.Add(field);
+                    }
+                }
+
+                public bool HasConflict()
+                {
+                    if (Fields.Count == 1)
+                    {
+                        return false;
+                    }
+
+                    if (FieldsByCollapsedMember.Count == 1 && FieldsByCollapsedMember.First().Value.Count == Fields.Count)
+                    {
+                        return false;
+                    }
+
+                    return true;
+                }
+            }
+        }
+
+        class CollapsedMember
+        {
+            /// <summary>
+            /// The property/field which this targets (null if no property with same name as function)
+            /// </summary>
+            public UProperty BackingProperty { get; set; }
+            public bool HasBackingProperty
+            {
+                get { return BackingProperty != null; }
+            }            
+            public bool IsBackingPropertyExportable { get; set; }
+
+            public UFunction Getter { get; set; }
+            public UFunction Setter { get; set; }
+            public string Name { get; set; }
+
+            /// <summary>
+            /// If there is a name conflict this will hold the resolved name
+            /// </summary>
+            public string ResolvedName { get; set; }
+
+            /// <summary>
+            /// Either the return of the Get or the parameter of the Set
+            /// </summary>
+            public UProperty Property { get; set; }            
+
+            public CodeGeneratorSettings.CollapsedMemberSettings Settings { get; private set; }
+
+            public CollapsedMember(CodeGeneratorSettings.CollapsedMemberSettings settings)
+            {
+                Settings = settings;
+            }
+        }
+
+        private bool IsBlittablePropertyType(UProperty property)
+        {
+            return property.IsBlittableType ||
+                (property.IsA<UObjectProperty>() && Settings.UObjectAsBlittableType) ||
+                (property.IsA<UStructProperty>() && IsBlittableStructProperty(property as UStructProperty));
+        }
+
+        private bool IsBlittableStructProperty(UStructProperty property)
+        {
+            if (property == null)
+            {
+                return false;
+            }
+            UStruct unrealStruct = property.Struct;
+            if (unrealStruct != null)
+            {
+                StructInfo structInfo;
+                if (structInfos.TryGetValue(unrealStruct, out structInfo))
+                {
+                    return structInfo.IsBlittable;
+                }
+
+                structInfo = GetStructInfo(unrealStruct);
+                return structInfo.IsBlittable;
+            }
+            return false;
+        }
+
+        private string GetBlittablePropertyTypeName(UProperty property)
+        {
+            return GetBlittablePropertyTypeName(property, null);
+        }
+
+        private string GetBlittablePropertyTypeName(UProperty property, List<string> namespaces)
+        {
+            if (!IsBlittablePropertyType(property))
+            {
+                return null;
+            }
+
+            switch (property.PropertyType)
+            {
+                case EPropertyType.Name: return Names.FName;
+                case EPropertyType.Int8: return "sbyte";
+                case EPropertyType.Byte: return "byte";
+                case EPropertyType.Int16: return "short";
+                case EPropertyType.UInt16: return "ushort";
+                case EPropertyType.Int: return "int";
+                case EPropertyType.UInt32: return "uint";
+                case EPropertyType.Int64: return "long";
+                case EPropertyType.UInt64: return "ulong";
+                case EPropertyType.Float: return "float";
+                case EPropertyType.Double: return "double";
+                case EPropertyType.Struct: return GetTypeName(property, namespaces);
+                default: return null;
+            }
+        }
+
+        private StructInfo GetStructInfo(UStruct unrealStruct)
+        {
+            bool isBlueprintType = unrealStruct.IsA<UUserDefinedStruct>() || unrealStruct.IsA<UBlueprintGeneratedClass>();
+            return GetStructInfo(unrealStruct, isBlueprintType);
+        }
+
+        private StructInfo GetStructInfo(UStruct unrealStruct, bool isBlueprintType)
+        {
+            StructInfo structInfo;
+            if (structInfos.TryGetValue(unrealStruct, out structInfo))
+            {
+                return structInfo;
+            }
+
+            structInfo = new StructInfo(this, unrealStruct, isBlueprintType);
+            foreach (UFunction function in unrealStruct.GetFields<UFunction>(false, true, true))
+            {
+                structInfo.AddFunction(function, CanExportFunction(function, isBlueprintType));
+            }
+
+            if (isBlueprintType)
+            {
+                UUserDefinedStruct userDefinedStruct = unrealStruct as UUserDefinedStruct;
+                if (userDefinedStruct != null)
+                {
+                    Dictionary<UProperty, string> variableNames = GetStructBPVariableNames(userDefinedStruct);
+
+                    foreach (UProperty property in unrealStruct.GetFields<UProperty>(false))
+                    {
+                        structInfo.AddProperty(property, variableNames[property], CanExportProperty(property, unrealStruct, isBlueprintType));
+                    }
+                }
+                else
+                {
+                    foreach (UProperty property in unrealStruct.GetProperties<UProperty>(false))
+                    {
+                        structInfo.AddProperty(property, null, CanExportProperty(property, unrealStruct, isBlueprintType));
+                    }
+                }
+            }
+            else
+            {
+                foreach (UProperty property in unrealStruct.GetFields<UProperty>(false))
+                {
+                    structInfo.AddProperty(property, null, CanExportProperty(property, unrealStruct, isBlueprintType));
+                }
+            }
+
+            structInfo.ResolveCollapsedMembers();
+            structInfo.PostProcess();
+
+            structInfos.Add(unrealStruct, structInfo);
+            return structInfo;
+        }
+
+        private string ResolveNameConflict(UField field, string name)
+        {
+            UStruct unrealStruct = field.GetOwnerStruct();
+            if ((field as UFunction) != null)
+            {
+                // GetOwnerStruct will return itself if it is a UStruct (which is true for UFunction)
+                unrealStruct = field.GetOwnerClass();
+            }
+
+            if (unrealStruct != null)
+            {
+                StructInfo structInfo = GetStructInfo(unrealStruct);
+                if (structInfo != null)
+                {
+                    return structInfo.ResolveNameConflict(field, name);
+                }
+            }
+            return name;
+        }
+    }
+}
+
+```
+
+### Bug Type:
+DOTNET_RESOURCE_LEAK
+
+### Qualifier:
+Leaked resource (returned from UnrealEngine.Runtime.TFieldIterator`1<T> UnrealEngine.Runtime.UStruct::GetFields<UnrealEngine.Runtime.UProperty>(System.Boolean,System.Boolean,System.Boolean) at Line 961) of type UnrealEngine.Runtime.TFieldIterator`1<T>, Leaked resource (returned from UnrealEngine.Runtime.TFieldIterator`1<T> UnrealEngine.Runtime.UStruct::GetProperties<UnrealEngine.Runtime.UProperty>(System.Boolean,System.Boolean,System.Boolean) at Line 968) of type UnrealEngine.Runtime.TFieldIterator`1<T>, Leaked resource (returned from UnrealEngine.Runtime.TFieldIterator`1<T> UnrealEngine.Runtime.UStruct::GetFields<UnrealEngine.Runtime.UProperty>(System.Boolean,System.Boolean,System.Boolean) at Line 976) of type UnrealEngine.Runtime.TFieldIterator`1<T>, Leaked resource (returned from UnrealEngine.Runtime.TFieldIterator`1<T> UnrealEngine.Runtime.UStruct::GetFields<UnrealEngine.Runtime.UFunction>(System.Boolean,System.Boolean,System.Boolean) at Line 949) of type UnrealEngine.Runtime.TFieldIterator`1<T> in method "CodeGenerator$StructInfo CodeGenerator.GetStructInfo(UStruct,Boolean)".
+
+### Severity:
+ERROR
+
+### Procedure:
+CodeGenerator$StructInfo CodeGenerator.GetStructInfo(UStruct,Boolean)
+
+### File:
+Managed/UnrealEngine.Runtime/UnrealEngine.Runtime/Internal/CodeGenerator/CodeGenerator.StructInfo.cs
+
+### Key:
+CodeGenerator.StructInfo.cs|GetStructInfo|DOTNET_RESOURCE_LEAK
+
+### Hash:
+93a75f6ab85223500d15b871bd44fa11
+
+### Bug Type Hum:
+Dotnet Resource Leak
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0535/instruction.md

@@ -0,0 +1,190 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** USharp
+**Bug ID:** 1
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace UnrealEngine.Runtime
+{
+    public partial class CodeGenerator
+    {
+        private void AppendAttribute(CSharpTextBuilder builder, UField field, UnrealModuleInfo module, StructInfo structInfo)
+        {
+            AppendAttribute(builder, field, module);
+            //if (field.IsA<UScriptStruct>() && structInfo.StructAsClass)
+            //{
+            //    builder.AppendLine("[" + Names.UStructAsClassAttributeShort + "]");
+            //}
+        }
+
+        private void AppendAttribute(CSharpTextBuilder builder, UField field, UnrealModuleInfo module)
+        {
+			UnrealModuleType moduleType;
+			UnrealModuleType moduleAssetType;
+			string moduleName = GetModuleName(field, out moduleType, out moduleAssetType);
+            if (string.IsNullOrEmpty(moduleName))
+            {
+				moduleName = module.Name;
+            }
+
+            List<string> attributes = new List<string>();
+
+            // TODO: Combine all of this into EPropertyType (add some TypeCode into UField?)
+            bool isInterface = false;
+			UEnum unrealEnum = field as UEnum;
+			UClass unrealClass = field as UClass;            
+            UScriptStruct unrealStruct = field as UScriptStruct;
+
+            UFunction unrealFunction = field as UFunction;
+            if (unrealFunction != null)
+            {
+                attributes.Add("UFunction(Flags=0x" + ((uint)unrealFunction.FunctionFlags).ToString("X8") + ")");
+            }
+
+            UProperty unrealProperty = field as UProperty;
+            if (unrealProperty != null)
+            {
+                attributes.Add("UProperty(Flags=(PropFlags)0x" + ((ulong)unrealProperty.PropertyFlags).ToString("X16") + ")");
+            }
+
+            if (unrealStruct != null)
+            {
+                attributes.Add("UStruct(Flags=0x" + ((uint)unrealStruct.StructFlags).ToString("X8") + ")");
+            }
+            else if (unrealClass != null)
+            {
+                // Abstract isn't really required but might help with code browsing to know what is abstract
+                // and what isn't. Therefore put it at the start of the attributes list.
+                if (unrealClass.HasAnyClassFlags(EClassFlags.Abstract))
+                {
+                    attributes.Add("Abstract");
+                }
+
+                isInterface = unrealClass.IsChildOf<UInterface>();
+                if (isInterface)
+                {
+                    attributes.Add("UInterface(Flags=0x" + ((uint)unrealClass.ClassFlags).ToString("X8") + ")");
+                }
+                else
+                {
+                    // Should we skip "inherit" config name?
+                    string configNameStr = string.Empty;
+                    if (unrealClass.ClassConfigName != FName.None &&
+                        !unrealClass.ClassConfigName.ToString().Equals("inherit", StringComparison.InvariantCultureIgnoreCase))
+                    {
+                        configNameStr = ", Config=\"" + unrealClass.ClassConfigName + "\"";
+                    }
+
+                    attributes.Add("UClass(Flags=(ClassFlags)0x" + ((uint)unrealClass.ClassFlags).ToString("X8") +
+                        configNameStr + ")");
+                }
+            }
+
+            if (unrealEnum != null)
+            {
+                attributes.Add("UEnum");
+            }
+
+            if (unrealEnum != null || unrealClass != null || unrealStruct != null)
+            {
+                bool blueprintType = false;
+                bool blueprintable = false;
+                if (unrealEnum != null)
+                {
+                    blueprintType = field.GetBoolMetaData(MDClass.BlueprintType);
+                }
+                else
+                {
+                    GetBlueprintability(field as UStruct, out blueprintType, out blueprintable);
+                }
+                if (blueprintType)
+                {
+                    attributes.Add(UMeta.GetKey(MDClass.BlueprintType));
+                }
+                if (blueprintable)
+                {
+                    attributes.Add(UMeta.GetKey(MDClass.Blueprintable));
+                }
+
+                if (isInterface)
+                {
+                }
+
+                attributes.Add("UMetaPath(\"" + field.GetPathName() + "\", \"" + moduleName +
+                    "\", UnrealModuleType." + GetUnrealModuleTypeString(moduleType, moduleAssetType) + 
+                    (isInterface ? ", InterfaceImpl=typeof(" + GetTypeName(unrealClass) + "Impl" + ")" : string.Empty) + ")");
+
+            }
+            else
+            {
+                attributes.Add("UMetaPath(\"" + field.GetPathName() + "\")");
+            }
+
+            if (attributes.Count > 0)
+            {
+                builder.AppendLine("[" + string.Join(", ", attributes) + "]");
+            }
+        }
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `null` is dereferenced by call to `GetPathName(...)` at line 136, column 17.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void CodeGenerator.AppendAttribute(CSharpTextBuilder,UField,CodeGenerator$UnrealModuleInfo,Boolean)
+
+### File:
+Managed/UnrealEngine.Runtime/UnrealEngine.Runtime/Internal/CodeGenerator/CodeGenerator.Attributes.cs
+
+### Key:
+CodeGenerator.Attributes.cs|AppendAttribute|NULL_DEREFERENCE
+
+### Node Key:
+a3c356fd9293cbe0aa600beb1ca2d657
+
+### Hash:
+c698cc1f6c94a76b74ab8dfce284dd93
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0557/instruction.md

@@ -0,0 +1,391 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Riz.XFramework
+**Bug ID:** 7
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+
+using System;
+using System.Data;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Collections.Generic;
+
+namespace TZM.XFramework
+{
+    /// <summary>
+    /// 扩展帮助类
+    /// </summary>
+    public static class XFrameworkExtensions
+    {
+        #region 表达式树
+
+        private static readonly string _anonymousName = "<>h__TransparentIdentifier";
+        private static Func<Type, bool> _isGrouping = t => t.IsGenericType && t.GetGenericTypeDefinition() == typeof(IGrouping<,>);
+        private static Func<string, bool> _isAnonymous = name => !string.IsNullOrEmpty(name) && name.StartsWith(_anonymousName, StringComparison.Ordinal);
+
+        /// <summary>
+        /// 返回真表达式
+        /// </summary>
+        public static Expression<Func<T, bool>> True<T>()
+            where T : class
+        {
+            return f => true;
+        }
+
+        /// <summary>
+        /// 返回假表达式
+        /// </summary>
+        public static Expression<Func<T, bool>> False<T>()
+            where T : class
+        {
+            return f => false;
+        }
+
+        /// <summary>
+        /// 拼接真表达式
+        /// </summary>
+        public static Expression<Func<T, bool>> AndAlso<T>(this Expression<Func<T, bool>> TExp1,
+            Expression<Func<T, bool>> TExp2) where T : class
+        {
+            if (TExp1 == null) return TExp2;
+            if (TExp2 == null) return TExp1;
+
+            var invokeExp = System.Linq.Expressions.Expression.Invoke(TExp2, TExp1.Parameters.Cast<System.Linq.Expressions.Expression>());
+            return System.Linq.Expressions.Expression.Lambda<Func<T, bool>>
+                  (System.Linq.Expressions.Expression.AndAlso(TExp1.Body, invokeExp), TExp1.Parameters);
+        }
+
+        /// <summary>
+        /// 拼接假表达式
+        /// </summary>
+        public static Expression<Func<T, bool>> OrElse<T>(this Expression<Func<T, bool>> TExp1,
+            Expression<Func<T, bool>> TExp2) where T : class
+        {
+            if (TExp1 == null) return TExp2;
+            if (TExp2 == null) return TExp1;
+
+            var invokeExp = System.Linq.Expressions.Expression.Invoke(TExp2, TExp1.Parameters.Cast<System.Linq.Expressions.Expression>());
+            return System.Linq.Expressions.Expression.Lambda<Func<T, bool>>
+                  (System.Linq.Expressions.Expression.OrElse(TExp1.Body, invokeExp), TExp1.Parameters);
+        }
+
+        /// <summary>
+        /// 去掉一元表达式的操作符
+        /// </summary>
+        /// <returns></returns>
+        public static Expression ReduceUnary(this Expression exp)
+        {
+            UnaryExpression unaryExpression = exp as UnaryExpression;
+            return unaryExpression != null
+                ? unaryExpression.Operand.ReduceUnary()
+                : exp;
+        }
+
+        /// <summary>
+        /// 判断表达式链是否能通过动态计算，计算出它的值
+        /// </summary>
+        public static bool CanEvaluate(this Expression node)
+        {
+            // => 5
+            // => a.ActiveDate == DateTime.Now
+            // => a.State == (byte)state
+
+            if (node == null) return false;
+            if (node.NodeType == ExpressionType.Constant) return true;
+            if (node.NodeType == ExpressionType.ArrayIndex) return true;
+            if (node.NodeType == ExpressionType.Call)
+            {
+                // List<int>{0}[]
+                MethodCallExpression methodCallExpression = node as MethodCallExpression;
+                Expression expression = methodCallExpression.Object;
+                //if (expression != null && expression.Type.IsGenericType && expression.Type.GetGenericTypeDefinition() == typeof(List<>) && methodCallExpression.Method.Name == "get_Item")
+                if (expression != null && Data.TypeUtils.IsCollectionType(expression.Type) && methodCallExpression.Method.Name == "get_Item")
+                {
+                    return true;
+                }
+            }
+
+            var member = node as MemberExpression;
+            if (member == null) return false;
+            if (member.Expression == null) return true;
+            if (member.Expression.NodeType == ExpressionType.Constant) return true;
+
+            return member.Expression.CanEvaluate();
+        }
+
+        /// <summary>
+        /// 计算表达式的值
+        /// </summary>
+        public static ConstantExpression Evaluate(this Expression e)
+        {
+            ConstantExpression node = null;
+            if (e.NodeType == ExpressionType.Constant)
+            {
+                node = e as ConstantExpression;
+            }
+            else
+            {
+                LambdaExpression lambda = e is LambdaExpression ? Expression.Lambda(((LambdaExpression)e).Body) : Expression.Lambda(e);
+                Delegate fn = lambda.Compile();
+
+                node = Expression.Constant(fn.DynamicInvoke(null), e is LambdaExpression ? ((LambdaExpression)e).Body.Type : e.Type);
+            }
+
+            // 枚举要转成 INT
+            if (node.Type.IsEnum) node = Expression.Constant(Convert.ToInt32(node.Value));
+
+            // 返回最终处理的常量表达式s
+            return node;
+        }
+
+        /// <summary>
+        /// 判断属性访问表达式是否有系统动态生成前缀
+        /// <code>
+        /// h__TransparentIdentifier.a.CompanyName
+        /// </code>
+        /// </summary>
+        public static bool IsAnonymous(this Expression node)
+        {
+            // <>h__TransparentIdentifier => h__TransparentIdentifier.a.CompanyName
+            Expression exp = node;
+            ParameterExpression paramExp = exp.NodeType == ExpressionType.Lambda
+                ? (node as LambdaExpression).Parameters[0]
+                : exp as ParameterExpression;
+            if (paramExp != null) return _isAnonymous(paramExp.Name);
+
+            if (exp.NodeType == ExpressionType.MemberAccess)    // <>h__TransparentIdentifier.a.CompanyName
+            {
+                MemberExpression memExp = exp as MemberExpression;
+                if (_isAnonymous(memExp.Member.Name)) return true;
+
+                return IsAnonymous(memExp.Expression);
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// 判断是否是分组表达式
+        /// </summary>
+        public static bool IsGrouping(this Expression node)
+        {
+            //g.Key
+            //g.Key.CompanyName
+            //g.Max()
+            //g=>g.xxx
+            //g.Key.CompanyId.Length
+            //g.Key.Length 
+
+            // g | g=>g.xx
+            Expression exp = node;
+            ParameterExpression paramExp = exp.NodeType == ExpressionType.Lambda
+                ? (node as LambdaExpression).Parameters[0]
+                : exp as ParameterExpression;
+            if (paramExp != null) return _isGrouping(paramExp.Type);
+
+            // g.Max
+            MethodCallExpression callExp = exp as MethodCallExpression;
+            if (callExp != null) return _isGrouping(callExp.Arguments[0].Type);
+
+
+            MemberExpression memExp = exp as MemberExpression;
+            if (memExp != null)
+            {
+                // g.Key
+                var g1 = memExp.Member.Name == "Key" && _isGrouping(memExp.Expression.Type);
+                if (g1) return g1;
+
+                // g.Key.Length | g.Key.Company | g.Key.CompanyId.Length
+                memExp = memExp.Expression as MemberExpression;
+                if (memExp != null)
+                {
+                    g1 = memExp.Member.Name == "Key" && _isGrouping(memExp.Expression.Type) && memExp.Type.Namespace == null; //匿名类没有命令空间
+                    if (g1) return g1;
+                }
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// 在递归访问 MemberAccess 表达式时，判定节点是否能够被继续递归访问
+        /// </summary>
+        public static bool Acceptable(this Expression node)
+        {
+            // a 
+            // <>h__TransparentIdentifier.a
+            // <>h__TransparentIdentifier0.<>h__TransparentIdentifier1.a
+
+            if (node.NodeType == ExpressionType.Parameter) return false;
+
+            if (node.NodeType == ExpressionType.MemberAccess)
+            {
+                MemberExpression m = node as MemberExpression;
+                if (m.Expression.NodeType == ExpressionType.Parameter)
+                {
+                    string name = (m.Expression as ParameterExpression).Name;
+                    if (_isAnonymous(name)) return false;
+                }
+
+                if (m.Expression.NodeType == ExpressionType.MemberAccess)
+                {
+                    string name = (m.Expression as MemberExpression).Member.Name;
+                    if (_isAnonymous(name)) return false;
+                }
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// 取剔除掉系统动态生成前缀后的表达式
+        /// </summary>
+        public static string GetKeyWidthoutAnonymous(this MemberExpression node, bool isDesciptor = false)
+        {
+            List<string> segs = new List<string>();
+            segs.Add(node.Member.Name);
+
+            Expression expression = node.Expression;
+            while (expression.Acceptable())
+            {
+                MemberExpression memberExpression = null;
+                if (expression.NodeType == ExpressionType.MemberAccess) memberExpression = (MemberExpression)expression;
+                else if (expression.NodeType == ExpressionType.Call) memberExpression = (expression as MethodCallExpression).Object as MemberExpression;
+
+                segs.Add(memberExpression.Member.Name);
+                expression = memberExpression.Expression;
+            }
+
+            // 如果读取
+            if (expression.NodeType == ExpressionType.Parameter) segs.Add(isDesciptor ? expression.Type.Name : (expression as ParameterExpression).Name);
+            if (expression.NodeType == ExpressionType.MemberAccess) segs.Add((expression as MemberExpression).Member.Name);
+
+            segs.Reverse();
+            string result = string.Join(".", segs);
+            return result;
+        }
+
+        #endregion
+
+        #region 列表扩展
+
+        /// <summary>
+        /// 取指定列表中符合条件的元素索引
+        /// </summary>
+        public static int IndexOf<T>(this IEnumerable<T> collection, Func<T, bool> predicate)
+        {
+            int i = -1;
+            foreach (T value in collection)
+            {
+                i++;
+                if (predicate(value)) return i;
+            }
+
+            return -1;
+        }
+
+        /// <summary>
+        /// 创建一个集合
+        /// </summary>
+        public static List<TResult> ToList<T, TResult>(this IEnumerable<T> collection, Func<T, TResult> selector)
+        {
+            return collection.Select(selector).ToList();
+        }
+
+        /// <summary>
+        /// 列表转换扩展
+        /// </summary>
+        public static List<TResult> ToList<T, TResult>(this IEnumerable<T> source, Func<T, TResult> selector, Func<T, bool> predicate = null)
+        {
+            if (predicate != null) source = source.Where(predicate);
+            return source.Select(selector).ToList();
+        }
+
+        /// <summary>
+        /// 根据页长计算总页码
+        /// </summary>
+        /// <param name="collection">数据集合</param>
+        /// <param name="pageSize">页码</param>
+        /// <returns></returns>
+        public static int Page<T>(this IEnumerable<T> collection, int pageSize)
+        {
+            int count = 0;
+            if ((collection as ICollection<T>) != null) count = (collection as ICollection<T>).Count;
+            else if ((collection as T[]) != null) count = (collection as T[]).Length;
+            else count = collection.Count();
+
+            int page = (count + pageSize - 1) / pageSize;
+            return page;
+        }
+
+        /// <summary>
+        /// 批量添加命令参数
+        /// </summary>
+        public static void AddRange(this IDataParameterCollection source, IEnumerable<IDbDataParameter> parameters)
+        {
+            if (parameters != null)
+            {
+                foreach (var p in parameters) source.Add(p);
+            }
+        }
+
+        #endregion
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `methodCallExpression` last assigned on line 94 could be null and is dereferenced at line 95, column 17.
+
+### Severity:
+ERROR
+
+### Procedure:
+Boolean XFrameworkExtensions.CanEvaluate(Expression)
+
+### File:
+net45/TZM.XFramework/Common/XFrameworkExtensions.cs
+
+### Key:
+XFrameworkExtensions.cs|CanEvaluate|NULL_DEREFERENCE
+
+### Node Key:
+90535029835413c6e5d1bdebbf52bdf9
+
+### Hash:
+d37146aef0c1f61eb7f3bdca4b334d37
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0559/instruction.md

@@ -0,0 +1,139 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Riz.XFramework
+**Bug ID:** 16
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System.Linq.Expressions;
+
+namespace TZM.XFramework.Data
+{
+    /// <summary>
+    /// UPDATE 表达式解析器
+    /// </summary>
+    public class UpdateExpressionVisitor : ExpressionVisitorBase
+    {
+        private IDbQueryProvider _provider = null;
+        private TableAliasCache _aliases = null;
+
+        /// <summary>
+        /// 初始化 <see cref="UpdateExpressionVisitor"/> 类的新实例
+        /// </summary>
+        public UpdateExpressionVisitor(IDbQueryProvider provider, TableAliasCache aliases, Expression exp)
+            : base(provider, aliases, exp)
+        {
+            _provider = provider;
+            _aliases = aliases;
+        }
+
+        //{new App() {Id = p.Id}}
+        protected override Expression VisitMemberInit(MemberInitExpression node)
+        {
+            if (node.Bindings == null || node.Bindings.Count == 0)
+                throw new XFrameworkException("Update<T> at least update one member.");
+
+            for (int index = 0; index < node.Bindings.Count; ++index)
+            {
+                MemberAssignment member = node.Bindings[index] as MemberAssignment;
+                _builder.AppendMember("t0", member.Member.Name);
+                _builder.Append(" = ");
+
+                if (member.Expression.CanEvaluate())
+                    _builder.Append(member.Expression.Evaluate().Value, member.Member, node.Type);
+                //base.VisitConstant(member.Expression.Evaluate(), member.Member);
+                else
+                    base.Visit(member.Expression);
+
+                if (index < node.Bindings.Count - 1)
+                {
+                    _builder.Append(",");
+                    _builder.AppendNewLine();
+                }
+            }
+            return node;
+        }
+
+        protected override Expression VisitNew(NewExpression node)
+        {
+            // 匿名类的New
+            if (node == null) return node;
+            if (node.Arguments == null || node.Arguments.Count == 0)
+                throw new XFrameworkException("Update<T> at least update one member.");
+
+            for (int index = 0; index < node.Arguments.Count; index++)
+            {
+                var member = node.Members[index];
+                _builder.AppendMember("t0", member.Name);
+                _builder.Append(" = ");
+
+                if (node.Arguments[index].CanEvaluate())
+                    _builder.Append(node.Arguments[index].Evaluate().Value, member, node.Type);
+                else
+                    base.Visit(node.Arguments[index]);
+
+                if (index < node.Arguments.Count - 1)
+                {
+                    _builder.Append(",");
+                    _builder.AppendNewLine();
+                }
+            }
+
+            return node;
+        }
+    }
+}
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `member` last assigned on line 32 could be null and is dereferenced at line 33, column 17.
+
+### Severity:
+ERROR
+
+### Procedure:
+Expression UpdateExpressionVisitor.VisitMemberInit(MemberInitExpression)
+
+### File:
+net45/TZM.XFramework/Data/ExpressionVisitor/UpdateExpressionVisitor.cs
+
+### Key:
+UpdateExpressionVisitor.cs|VisitMemberInit|NULL_DEREFERENCE
+
+### Node Key:
+91b8c216590cdce695b1f86e7c48e6c5
+
+### Hash:
+ca68bae44360dc2f736535b6624c50e9
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0561/instruction.md

@@ -0,0 +1,278 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Riz.XFramework
+**Bug ID:** 6
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using System.Linq.Expressions;
+
+namespace TZM.XFramework.Data
+{
+    /// <summary>
+    /// DELETE 或者 UPDATE 语法中的 JOIN 解析成 EXISTS
+    /// </summary>
+    public class OracleExistsExpressionVisitor : ExpressionVisitorBase
+    {
+        private IDbQueryProvider _provider = null;
+        private List<DbExpression> _qJoin = null;
+        private TableAliasCache _aliases = null;
+        private DbExpression _where = null;
+
+        /// <summary>
+        /// 初始化 <see cref="OracleExistsExpressionVisitor"/> 类的新实例
+        /// </summary>
+        public OracleExistsExpressionVisitor(IDbQueryProvider provider, TableAliasCache aliases, List<DbExpression> qJoin, DbExpression qWhere)
+            : base(provider, aliases, null, false)
+        {
+            _provider = provider;
+            _qJoin = qJoin;
+            _aliases = aliases;
+            _where = qWhere;
+        }
+
+        /// <summary>
+        /// 将表达式所表示的SQL片断写入SQL构造器
+        /// </summary>
+        public void Write(OracleSelectInfoCommand cmd)
+        {
+            ISqlBuilder jf = cmd.JoinFragment;
+            ISqlBuilder on = cmd.OnPhrase;
+            ISqlBuilder wf = cmd.WhereFragment;
+
+            if (_qJoin != null && _qJoin.Count > 0)
+            {
+                for (int i = 0; i < _qJoin.Count; i++)
+                {
+                    DbExpression qj = _qJoin[i];
+                    if (qj.DbExpressionType == DbExpressionType.GroupJoin || qj.DbExpressionType == DbExpressionType.Join)
+                        this.AppendLfInJoin(jf, wf, on, qj, _aliases);
+                    else if (qj.DbExpressionType == DbExpressionType.SelectMany)
+                        this.AppendCrossJoin(jf, qj, _aliases);
+                }
+            }
+        }
+
+        // LEFT OR INNER JOIN
+        private void AppendLfInJoin(ISqlBuilder jf, ISqlBuilder wf, ISqlBuilder on, DbExpression exp, TableAliasCache aliases)
+        {
+            bool useExists = false;
+            LambdaExpression left = exp.Expressions[1] as LambdaExpression;
+            LambdaExpression right = exp.Expressions[2] as LambdaExpression;
+            NewExpression body1 = left.Body as NewExpression;
+            NewExpression body2 = right.Body as NewExpression;
+
+            // t0(t1)
+            string alias = body1 == null
+                ? aliases.GetTableAlias(exp.Expressions[2])
+                : aliases.GetTableAlias(right.Parameters[0]);//(body2.Arguments[0]);
+
+            IDbQueryable sQuery = (IDbQueryable)((exp.Expressions[0] as ConstantExpression).Value);
+            if (sQuery.DbExpressions.Count == 1 && sQuery.DbExpressions[0].DbExpressionType == DbExpressionType.GetTable)
+            {
+                useExists = true;
+                if ((wf != null && wf.Length > 0) || (on != null && on.Length > 0))
+                {
+                    wf.AppendNewLine();
+                    if (wf != null && wf.Length > 0) wf.Append("AND ");
+                }
+
+                wf.Append("EXISTS(");
+                wf.Indent += 1;
+                wf.AppendNewLine();
+                wf.Append("SELECT 1 FROM ");
+
+                Type type = exp.Expressions[0].Type.GetGenericArguments()[0];
+                var typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo(type);
+                wf.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary);
+                wf.Append(' ');
+                wf.Append(alias);
+
+                wf.AppendNewLine();
+                wf.Append("WHERE ");
+            }
+            else
+            {
+                useExists = true;
+                if ((wf != null && wf.Length > 0) || (on != null && on.Length > 0))
+                {
+                    wf.AppendNewLine();
+                    if (wf != null && wf.Length > 0) wf.Append("AND ");
+                }
+
+                wf.Append("EXISTS(");
+                wf.Indent += 1;
+                wf.AppendNewLine();
+                wf.Append("SELECT 1 FROM(");
+                var cmd2 = sQuery.Resolve(wf.Indent + 1, false, wf.Parameter);
+                wf.Append(cmd2.CommandText);
+                wf.AppendNewLine();
+                wf.Append(')');
+                wf.Append(' ');
+                wf.Append(alias);
+                wf.Append(" WHERE ");
+            }
+
+            ISqlBuilder builder = useExists ? wf : on;
+            if (body1 == null)
+            {
+                builder.AppendMember(aliases, left.Body.ReduceUnary());
+                builder.Append(" = ");
+                builder.AppendMember(aliases, right.Body.ReduceUnary());
+            }
+            else
+            {
+                for (int index = 0; index < body1.Arguments.Count; ++index)
+                {
+                    builder.AppendMember(aliases, body1.Arguments[index]);
+                    builder.Append(" = ");
+                    builder.AppendMember(aliases, body2.Arguments[index]);
+                    if (index < body1.Arguments.Count - 1) builder.Append(" AND ");
+                }
+            }
+
+            //if (_where != null && _where.Expressions != null) this.AppendWhere(builder, right);
+
+            if (useExists)
+            {
+                wf.Indent -= 1;
+                wf.AppendNewLine();
+                wf.Append(')');
+            }
+        }
+
+        private void AppendWhere(ISqlBuilder builder, LambdaExpression lambda)
+        {
+            ParameterExpression parameter = lambda.Parameters[0];
+            Expression expression = _where.Expressions[0];
+            List<Expression> predicates = new List<Expression>();
+            List<SegExpression> others = new List<SegExpression>();
+
+            while (expression != null && (expression is BinaryExpression))
+            {
+                bool ignore = false;
+                BinaryExpression source = expression as BinaryExpression;
+
+                // 找出对应的表别名
+                BinaryExpression rightBinary = source.Right as BinaryExpression;
+                BinaryExpression binary = rightBinary != null ? rightBinary : source;
+
+                Expression right = binary.Left.CanEvaluate() ? binary.Right : binary.Left;
+                while (right != null && right.Acceptable())
+                {
+                    MemberExpression m = right as MemberExpression;
+                    if (m != null) right = m.Expression;
+                    else right = null;
+                }
+                if (right != null && right.NodeType == ExpressionType.MemberAccess)
+                {
+                    MemberExpression m = right as MemberExpression;
+                    if (m.Member.Name == parameter.Name)
+                    {
+                        predicates.Add(binary);
+                        ignore = true;
+                    }
+                }
+
+                expression = source.Left;
+                others.Add(new SegExpression
+                {
+                    Ignore = ignore,
+                    NodeType = source.NodeType,
+                    Expression = binary
+                });
+            }
+
+            if (predicates.Count > 0)
+            {
+                Expression body = predicates[0];
+                for (int i = 1; i < predicates.Count; i++)
+                {
+                    if (predicates[i] != null) body = Expression.And(body, predicates[i]);
+                }
+
+                OracleWhereExpressionVisitor visitor = new OracleWhereExpressionVisitor(_provider, _aliases, new DbExpression(DbExpressionType.Where, body));
+                visitor.Write(builder);
+            }
+
+            //if (others.Any(x => x.Ignore))
+            //{
+            //    Expression body = null;
+            //    for(int )
+            //}
+        }
+
+        // Cross Join
+        private void AppendCrossJoin(ISqlBuilder jf, DbExpression exp, TableAliasCache aliases)
+        {
+            throw new NotSupportedException("Oracle not support.");
+        }
+
+        class SegExpression
+        {
+            public bool Ignore { get; set; }
+
+            public ExpressionType NodeType { get; set; }
+
+            public Expression Expression { get; set; }
+        }
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `left` last assigned on line 56 could be null and is dereferenced at line 58, column 13.
+
+### Severity:
+ERROR
+
+### Procedure:
+Void OracleExistsExpressionVisitor.AppendLfInJoin(ISqlBuilder,ISqlBuilder,ISqlBuilder,DbExpression,TableAliasCache)
+
+### File:
+net45/TZM.XFramework.Oracle/Data/ExpressionVisitor/OracleExistsExpressionVisitor.cs
+
+### Key:
+OracleExistsExpressionVisitor.cs|AppendLfInJoin|NULL_DEREFERENCE
+
+### Node Key:
+4c5a0b70536cd3f04e9da256c6c8ae68
+
+### Hash:
+c0c15c996196ad3d069f9f39b112a221
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0566/instruction.md

@@ -0,0 +1,629 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Riz.XFramework
+**Bug ID:** 19
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+using System;
+using System.Data;
+using System.Linq.Expressions;
+using System.Collections.Generic;
+
+namespace TZM.XFramework.Data
+{
+    /// <summary>
+    /// 选择列表达式解析器
+    /// </summary>
+    public class ColumnExpressionVisitor : ExpressionVisitorBase
+    {
+        private static IDictionary<DbExpressionType, string> _statisMethods = null;
+        private IDbQueryProvider _provider = null;
+        private TableAliasCache _aliases = null;
+        private IDbQueryableInfo_Select _qQuery = null;
+        private DbExpression _groupBy = null;
+        private List<DbExpression> _include = null;
+
+        private ColumnCollection _pickColumns = null;
+        private NavigationCollection _navigations = null;
+        private List<string> _navChainHopper = null;
+        private int _startLength = 0;
+        private string _pickColumnText = null;
+
+        /// <summary>
+        /// 选中字段，Column 对应实体的原始属性
+        /// </summary>
+        public ColumnCollection PickColumns
+        {
+            get { return _pickColumns; }
+        }
+
+        /// <summary>
+        /// 选中字段的文本，给 Contains 表达式用
+        /// </summary>
+        public string PickColumnText
+        {
+            get
+            {
+                if (_pickColumnText == null)
+                {
+                    int count = _builder.Length - _startLength;
+                    if (count > 0)
+                    {
+                        char[] chars = new char[count];
+                        _builder.CopyTo(_startLength, chars, 0, count);
+                        _pickColumnText = new String(chars);
+                    }
+                }
+
+                return _pickColumnText;
+            }
+        }
+
+        /// <summary>
+        /// 导航属性描述信息
+        /// <para>
+        /// 从 <see cref="IDataReader"/> 到实体的映射需要使用这些信息来给导航属性赋值
+        /// </para>
+        /// </summary>
+        public NavigationCollection Navigations
+        {
+            get { return _navigations; }
+        }
+
+        static ColumnExpressionVisitor()
+        {
+            _statisMethods = new Dictionary<DbExpressionType, string>
+            {
+                { DbExpressionType.Count,"COUNT" },
+                { DbExpressionType.Max,"MAX" },
+                { DbExpressionType.Min,"MIN" },
+                { DbExpressionType.Average,"AVG" },
+                { DbExpressionType.Sum,"SUM" }
+            };
+        }
+
+        /// <summary>
+        /// 初始化 <see cref="ColumnExpressionVisitor"/> 类的新实例
+        /// </summary>
+        public ColumnExpressionVisitor(IDbQueryProvider provider, TableAliasCache aliases, IDbQueryableInfo_Select qQuery)
+            : base(provider, aliases, qQuery.SelectExpression.Expressions != null ? qQuery.SelectExpression.Expressions[0] : null)
+        {
+            _provider = provider;
+            _aliases = aliases;
+            _qQuery = qQuery;
+            _groupBy = qQuery.GroupByExpression;
+            _include = qQuery.Includes;
+
+            if (_pickColumns == null) _pickColumns = new ColumnCollection();
+            _navigations = new NavigationCollection();
+            _navChainHopper = new List<string>(10);
+        }
+
+        /// <summary>
+        /// 将表达式所表示的SQL片断写入SQL构造器
+        /// </summary>
+        public override void Write(ISqlBuilder builder)
+        {
+            if (base.Expression != null)
+            {
+                base._builder = builder;
+                _builder.AppendNewLine();
+                _startLength = _builder.Length;
+                if (base._methodVisitor == null) base._methodVisitor = _provider.CreateMethodVisitor(this);
+
+                // SELECT 表达式解析
+                if (base.Expression.NodeType != ExpressionType.Constant) base.Write(builder);
+                else
+                {
+                    // if have no select syntax
+                    Type type = (base.Expression as ConstantExpression).Value as Type;
+                    this.VisitAllMember(type, "t0");
+                }
+                // Include 表达式解析<导航属性>
+                this.VisitInclude();
+                // 去掉空白字符
+                _builder.TrimEnd(' ', ',');
+            }
+        }
+
+        // p=>p p=>p.t p=>p.Id
+        protected override Expression VisitLambda<T>(Expression<T> node)
+        {
+            LambdaExpression lambda = node as LambdaExpression;
+            if (lambda.Body.NodeType == ExpressionType.Parameter)
+            {
+                // 例： a=> a
+                Type type = lambda.Body.Type;
+                string alias = _aliases.GetTableAlias(lambda);
+                this.VisitAllMember(type, alias);
+                return node;
+            }
+            else if (lambda.Body.CanEvaluate())
+            {
+                // 例：a=>1
+                base.Visit(lambda.Body.Evaluate());
+
+                // 选择字段
+                string newName = _pickColumns.Add(Constant.CONSTANTNAME);
+                // 添加字段别名
+                _builder.AppendAs(newName);
+                return node;
+            }
+            else if (lambda.Body.NodeType == ExpressionType.MemberAccess)
+            {
+                // 例： t=> t.a
+                // => SELECT a.ClientId
+                Type type = lambda.Body.Type;
+                if (!TypeUtils.IsPrimitiveType(type)) return this.VisitAllMember(type, _aliases.GetTableAlias(lambda.Body), node);
+                else
+                {
+                    var newNode = this.VisitWithoutRemark(x => base.VisitLambda(node));
+                    string newName = _pickColumns.Add((lambda.Body as MemberExpression).Member.Name);
+                    return newNode;
+                }
+            }
+            else
+            {
+                return base.VisitLambda(node);
+            }
+        }
+
+        // => new App() {Id = p.Id}}
+        protected override Expression VisitMemberInit(MemberInitExpression node)
+        {// 如果有一对多的导航属性会产生嵌套的SQL，这时需要强制主表选择的列里面必须包含导航外键
+            // TODO #对 Bindings 进行排序，保证导航属性的赋值一定要最后面#
+            // 未实现，在书写表达式时人工保证 ##
+
+            if (node.NewExpression != null) this.VisitNewImpl(node.NewExpression);
+            if (_navChainHopper.Count == 0) _navChainHopper.Add(node.Type.Name);
+
+            for (int i = 0; i < node.Bindings.Count; i++)
+            {
+                MemberAssignment binding = node.Bindings[i] as MemberAssignment;
+                if (binding == null) throw new XFrameworkException("Only 'MemberAssignment' binding supported.");
+
+                Type propertyType = (node.Bindings[i].Member as System.Reflection.PropertyInfo).PropertyType;
+                bool isNavigation = !TypeUtils.IsPrimitiveType(propertyType);
+
+                #region 一般属性
+
+                // 非导航属性
+                if (!isNavigation)
+                {
+                    if (binding.Expression.CanEvaluate())
+                        _builder.Append(binding.Expression.Evaluate().Value, binding.Member, node.Type);
+                    else
+                        this.VisitWithoutRemark(x => this.VisitMemberBinding(binding));
+
+                    // 选择字段
+                    string newName = _pickColumns.Add(binding.Member.Name);
+                    // 添加字段别名
+                    _builder.AppendAs(newName);
+                    _builder.Append(',');
+                    _builder.AppendNewLine();
+                }
+
+                #endregion 一般属性
+
+                #region 导航属性
+
+                else
+                {
+                    // 非显式指定的导航属性需要有 ForeignKeyAttribute
+                    if (binding.Expression.NodeType == ExpressionType.MemberAccess && binding.Expression.Acceptable())
+                    {
+                        var typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo(binding.Member.DeclaringType);
+                        var attribute = typeRuntime.GetInvokerAttribute<ForeignKeyAttribute>(binding.Member.Name);
+                        if (attribute == null) throw new XFrameworkException("Complex property {{{0}}} must mark 'ForeignKeyAttribute' ", binding.Member.Name);
+                    }
+
+                    // 生成导航属性描述集合，以类名.属性名做为键值
+                    int n = _navChainHopper.Count;
+                    string keyName = _navChainHopper.Count > 0 ? _navChainHopper[_navChainHopper.Count - 1] : string.Empty;
+                    keyName = !string.IsNullOrEmpty(keyName) ? keyName + "." + binding.Member.Name : binding.Member.Name;
+                    Navigation nav = new Navigation(keyName, binding.Member);
+                    if (!_navigations.ContainsKey(keyName))
+                    {
+                        // fix issue# XC 列占一个位
+                        nav.Start = _pickColumns.Count;
+                        nav.FieldCount = GetFieldCount(binding.Expression) + (binding.Expression.NodeType == ExpressionType.MemberAccess && binding.Expression.Acceptable() ? 1 : 0);
+                        _navigations.Add(keyName, nav);
+                        _navChainHopper.Add(keyName);
+                    }
+
+                    // 1.不显式指定导航属性，例：a.Client.ClientList
+                    // 2.表达式里显式指定导航属性，例：b
+                    if (binding.Expression.NodeType == ExpressionType.MemberAccess) this.VisitNavigation(binding.Expression as MemberExpression, binding.Expression.Acceptable());
+                    else if (binding.Expression.NodeType == ExpressionType.New) this.VisitNewImpl(binding.Expression as NewExpression);
+                    else if (binding.Expression.NodeType == ExpressionType.MemberInit) this.VisitMemberInit(binding.Expression as MemberInitExpression);
+
+                    // 恢复访问链
+                    // 在访问导航属性时可能是 Client.CloudServer，这时要恢复为 Client，以保证能访问 Client 的下一个导航属性
+                    if (_navChainHopper.Count != n) _navChainHopper.RemoveAt(_navChainHopper.Count - 1);
+                }
+
+                #endregion 导航属性
+            }
+
+            return node;
+        }
+
+        // => Client = a.Client.CloudServer
+        private Expression VisitNavigation(MemberExpression node, bool visitNavigation)
+        {
+            string alias = string.Empty;
+            Type type = node.Type;
+
+            if (node.Acceptable())
+            {
+                // 例： Client = a.Client.CloudServer
+                // fix issue# Join 表达式显式指定导航属性时时，alias 为空
+                // fix issue# 多个导航属性时 AppendNullColumn 只解析当前表达式的
+                int index = 0;
+                int num = this.NavMembers != null ? this.NavMembers.Count : 0;
+                alias = this.VisitNavMember(node);
+
+                if (num != this.NavMembers.Count)
+                {
+                    foreach (var kvp in NavMembers)
+                    {
+                        index += 1;
+                        if (index < NavMembers.Count && index > num) alias = _aliases.GetNavigationTableAlias(kvp.Key);
+                        else
+                        {
+                            alias = _aliases.GetNavigationTableAlias(kvp.Key);
+                            type = kvp.Value.Type;
+                        }
+                    }
+                }
+                else
+                {
+                }
+            }
+            else
+            {
+                // 例： Client = b
+                alias = _aliases.GetTableAlias(node);
+                type = node.Type;
+            }
+
+            if (type.IsGenericType) type = type.GetGenericArguments()[0];
+            this.VisitAllMember(type, alias);
+            if (visitNavigation) AddSplitOnColumn(node.Member, alias);
+
+            return node;
+        }
+
+        // => new  {Id = p.Id}
+        protected override Expression VisitNew(NewExpression node)
+        {
+            // TODO 未支持匿名类的导航属性
+            // MemberInit的New
+            // 匿名类的New
+            if (node == null) return node;
+            if (node.Arguments == null || node.Arguments.Count == 0)
+                throw new XFrameworkException("'NewExpression' do not have any argument.");
+
+            this.VisitNewImpl(node);
+
+            return node;
+        }
+
+        // 遍历New表达式的参数集
+        private Expression VisitNewImpl(NewExpression node)
+        {
+            for (int i = 0; i < node.Arguments.Count; i++)
+            {
+                Expression expression = node.Arguments[i];
+                Type type = expression.Type;
+                int visitedQty = _visitedMark.Count;
+
+                if (expression.NodeType == ExpressionType.Parameter)
+                {
+                    //例： new Client(a)
+                    string alias = _aliases.GetTableAlias(expression);
+                    this.VisitAllMember(type, alias);
+                }
+                else if (expression.CanEvaluate())
+                {
+                    //例： DateTime.Now
+                    _builder.Append(expression.Evaluate().Value, node.Members[i], node.Type);
+                    this.VisitNewImpl_AddNewName(node.Members != null ? node.Members[i].Name : (expression as MemberExpression).Member.Name);
+                }
+                else if (expression.NodeType == ExpressionType.MemberAccess || expression.NodeType == ExpressionType.Call)
+                {
+                    bool isNavigation = !type.IsEnum && !TypeUtils.IsPrimitiveType(type);
+                    if (isNavigation) this.VisitNavigation(expression as MemberExpression, false);
+                    else
+                    {
+                        // new Client(a.ClientId)
+                        this.Visit(expression);
+                        this.VisitNewImpl_AddNewName(node.Members != null ? node.Members[i].Name : (expression as MemberExpression).Member.Name);
+                    }
+                }
+                else
+                {
+                    base.Visit(expression);
+                    this.VisitNewImpl_AddNewName(node.Members != null ? node.Members[i].Name : (expression as MemberExpression).Member.Name);
+                }
+
+                // 删除本次访问的成员痕迹
+                if (_visitedMark.Count != visitedQty) _visitedMark.Remove(_visitedMark.Count - visitedQty);
+            }
+
+            return node;
+        }
+
+        private void VisitNewImpl_AddNewName(string memberName)
+        {
+            string newName = _pickColumns.Add(memberName);
+            _builder.AppendAs(newName);
+            _builder.Append(',');
+            _builder.AppendNewLine();
+        }
+
+        // g.Key.CompanyName & g.Max(a)
+        protected override Expression VisitMember(MemberExpression node)
+        {
+            if (node == null) return node;
+            else if (_groupBy == null || !node.IsGrouping()) return base.VisitMember(node);
+            else
+            {
+                // Group By 解析  CompanyName = g.Key.Name
+                LambdaExpression keySelector = _groupBy.Expressions[0] as LambdaExpression;
+                Expression exp = null;
+                Expression body = keySelector.Body;
+
+                if (body.NodeType == ExpressionType.MemberAccess)
+                {
+                    // group xx by a.CompanyName
+                    exp = body;
+
+                    //
+                    //
+                    //
+                    //
+                }
+                else if (body.NodeType == ExpressionType.New)
+                {
+                    // group xx by new { Name = a.CompanyName  }
+
+                    string memberName = node.Member.Name;
+                    NewExpression newExp = body as NewExpression;
+                    int index = newExp.Members.IndexOf(x => x.Name == memberName);
+                    exp = newExp.Arguments[index];
+                }
+
+                return this.Visit(exp);
+            }
+        }
+
+        // 选择所有的字段
+        private Expression VisitAllMember(Type type, string alias, Expression node = null)
+        {
+            if (_groupBy != null && node != null && node.IsGrouping())
+            {
+                // select g.Key
+                LambdaExpression keySelector = _groupBy.Expressions[0] as LambdaExpression;
+                return this.Visit(keySelector.Body);
+            }
+            else
+            {
+                TypeRuntimeInfo typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo(type);
+                MemberInvokerCollection invokers = typeRuntime.Invokers;
+
+                foreach (var invoker in invokers)
+                {
+                    if (invoker != null && invoker.Column != null && invoker.Column.NoMapped) continue;
+                    if (invoker != null && invoker.ForeignKey != null) continue; // 不加载导航属性
+                    if (invoker.Member.MemberType == System.Reflection.MemberTypes.Method) continue;
+
+                    _builder.AppendMember(alias, invoker.Member.Name);
+
+                    // 选择字段
+                    string newName = _pickColumns.Add(invoker.Member.Name);
+                    _builder.AppendAs(newName);
+                    _builder.Append(",");
+                    _builder.AppendNewLine();
+                }
+            }
+
+            return node;
+        }
+
+        // g.Max(a=>a.Level)
+        protected override Expression VisitMethodCall(MethodCallExpression node)
+        {
+            if (_groupBy != null && node.IsGrouping())
+            {
+                DbExpressionType dbExpressionType = DbExpressionType.None;
+                Enum.TryParse(node.Method.Name, out dbExpressionType);
+                Expression exp = dbExpressionType == DbExpressionType.Count
+                    ? Expression.Constant(1)
+                    : (node.Arguments.Count == 1 ? null : node.Arguments[1]);
+                if (exp.NodeType == ExpressionType.Lambda) exp = (exp as LambdaExpression).Body;
+
+                // 如果是 a=> a 这种表达式，那么一定会指定 elementSelector
+                if (exp.NodeType == ExpressionType.Parameter) exp = _groupBy.Expressions[1];
+
+                _builder.Append(_statisMethods[dbExpressionType]);
+                _builder.Append("(");
+                this.Visit(exp);
+                _builder.Append(")");
+
+                return node;
+            }
+
+            return base.VisitMethodCall(node);
+        }
+
+        // 遍历 Include 包含的导航属性
+        private void VisitInclude()
+        {
+            if (_include == null || _include.Count == 0) return;
+
+            foreach (var dbExpression in _include)
+            {
+                Expression exp = dbExpression.Expressions[0];
+                if (exp == null) continue;
+
+                if (exp.NodeType == ExpressionType.Lambda) exp = (exp as LambdaExpression).Body;
+                MemberExpression memberExpression = exp as MemberExpression;
+                if (memberExpression == null) throw new XFrameworkException("Include expression body must be 'MemberExpression'.");
+
+                // 例：Include(a => a.Client.AccountList[0].Client)
+                // 解析导航属性链
+                List<Expression> chain = new List<Expression>();
+                while (memberExpression != null)
+                {
+                    // a.Client 要求 <Client> 必须标明 ForeignKeyAttribute
+                    TypeRuntimeInfo typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo(memberExpression.Expression.Type);
+                    ForeignKeyAttribute attribute = typeRuntime.GetInvokerAttribute<ForeignKeyAttribute>(memberExpression.Member.Name);
+                    if (attribute == null) throw new XFrameworkException("Include member {{{0}}} must mark 'ForeignKeyAttribute'.", memberExpression);
+
+                    MemberExpression m = null;
+                    chain.Add(memberExpression);
+                    if (memberExpression.Expression.NodeType == ExpressionType.MemberAccess) m = (MemberExpression)memberExpression.Expression;
+                    else if (memberExpression.Expression.NodeType == ExpressionType.Call) m = (memberExpression.Expression as MethodCallExpression).Object as MemberExpression;
+
+                    //var m = memberExpression.Expression as MemberExpression;
+                    if (m == null) chain.Add(memberExpression.Expression);
+                    memberExpression = m;
+                }
+
+                // 生成导航属性描述信息
+                string keyName = string.Empty;
+                for (int i = chain.Count - 1; i >= 0; i--)
+                {
+                    Expression expression = chain[i];
+                    memberExpression = expression as MemberExpression;
+                    if (memberExpression == null) continue;
+
+                    keyName = memberExpression.GetKeyWidthoutAnonymous(true);
+                    if (!_navigations.ContainsKey(keyName))
+                    {
+                        // fix issue# XC 列占一个位
+                        Navigation descriptor = new Navigation(keyName, memberExpression.Member);
+                        descriptor.Start = i == 0 ? _pickColumns.Count : -1;//_columns.Count;
+                        descriptor.FieldCount = i == 0 ? (GetFieldCount(exp) + 1) : -1; //i == 0 ? (GetFieldCount(exp) + 1) : 1;//-1;
+                        _navigations.Add(keyName, descriptor);
+                    }
+                }
+
+                this.VisitNavigation(memberExpression, true);
+            }
+        }
+
+        // 添加额外列，用来判断整个（左）连接记录是否为空
+        private void AddSplitOnColumn(System.Reflection.MemberInfo member, string alias)
+        {
+            TypeRuntimeInfo typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo(member.DeclaringType);
+            var foreignKey = typeRuntime.GetInvokerAttribute<ForeignKeyAttribute>(member.Name);
+            string keyName = foreignKey.OuterKeys[0];
+
+            _builder.Append("CASE WHEN ");
+            _builder.AppendMember(alias, keyName);
+            _builder.Append(" IS NULL THEN NULL ELSE ");
+            _builder.AppendMember(alias, keyName);
+            _builder.Append(" END");
+
+            // 选择字段
+            string newName = _pickColumns.Add(Constant.NAVIGATIONSPLITONNAME);
+            //_builder.Append(caseWhen);
+            _builder.AppendAs(newName);
+            _builder.Append(',');
+            _builder.AppendNewLine();
+        }
+
+        // 计算数据库字段数量
+        private static int GetFieldCount(Expression node)
+        {
+            int num = 0;
+
+            switch (node.NodeType)
+            {
+                case ExpressionType.MemberInit:
+                    MemberInitExpression m = node as MemberInitExpression;
+                    foreach (var exp in m.NewExpression.Arguments) num += _typeFieldAggregator(exp);
+                    foreach (MemberAssignment ma in m.Bindings) num += _primitiveAggregator((ma.Member as System.Reflection.PropertyInfo).PropertyType);
+
+                    break;
+
+                case ExpressionType.MemberAccess:
+                    MemberExpression m1 = node as MemberExpression;
+                    num += _typeFieldAggregator(m1);
+
+                    break;
+
+                case ExpressionType.New:
+                    NewExpression m2 = node as NewExpression;
+                    foreach (var exp in m2.Arguments) num += _typeFieldAggregator(exp);
+                    if (m2.Members != null) foreach (var member in m2.Members) num += _primitiveAggregator((member as System.Reflection.PropertyInfo).PropertyType);
+
+                    break;
+            }
+
+            return num;
+        }
+
+        private static Func<Expression, int> _typeFieldAggregator = exp =>
+              exp.NodeType == ExpressionType.MemberAccess && TypeUtils.IsPrimitiveType(exp.Type) ? 1 : TypeRuntimeInfoCache.GetRuntimeInfo(exp.Type.IsGenericType ? exp.Type.GetGenericArguments()[0] : exp.Type).DataFieldCount;
+
+        private static Func<Type, int> _primitiveAggregator = type => TypeUtils.IsPrimitiveType(type) ? 1 : 0;
+    }
+}
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `m` last assigned on line 551 could be null and is dereferenced at line 552, column 41.
+
+### Severity:
+ERROR
+
+### Procedure:
+Int32 ColumnExpressionVisitor.GetFieldCount(Expression)
+
+### File:
+net45/TZM.XFramework/Data/ExpressionVisitor/ColumnExpressionVisitor.cs
+
+### Key:
+ColumnExpressionVisitor.cs|GetFieldCount|NULL_DEREFERENCE
+
+### Node Key:
+5f6bc9a45b87a0bd98569135266c4d99
+
+### Hash:
+08416c86aa4443e21270e63dcd70c65c
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.

inferredbugs-0568/instruction.md

@@ -0,0 +1,390 @@
+# InferredBugs Task - Csharp
+
+## Project Information
+
+**Project:** Riz.XFramework
+**Bug ID:** 8
+**Language:** csharp
+
+## Bug Information
+
+### File-Level Changes:
+
+**Before (Buggy File):**
+```csharp
+
+using System;
+using System.Data;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Collections.Generic;
+
+namespace TZM.XFramework
+{
+    /// <summary>
+    /// 扩展帮助类
+    /// </summary>
+    public static class XFrameworkExtensions
+    {
+        #region 表达式树
+
+        private static readonly string _anonymousName = "<>h__TransparentIdentifier";
+        private static Func<Type, bool> _isGrouping = t => t.IsGenericType && t.GetGenericTypeDefinition() == typeof(IGrouping<,>);
+        private static Func<string, bool> _isAnonymous = name => !string.IsNullOrEmpty(name) && name.StartsWith(_anonymousName, StringComparison.Ordinal);
+
+        /// <summary>
+        /// 返回真表达式
+        /// </summary>
+        public static Expression<Func<T, bool>> True<T>()
+            where T : class
+        {
+            return f => true;
+        }
+
+        /// <summary>
+        /// 返回假表达式
+        /// </summary>
+        public static Expression<Func<T, bool>> False<T>()
+            where T : class
+        {
+            return f => false;
+        }
+
+        /// <summary>
+        /// 拼接真表达式
+        /// </summary>
+        public static Expression<Func<T, bool>> AndAlso<T>(this Expression<Func<T, bool>> TExp1,
+            Expression<Func<T, bool>> TExp2) where T : class
+        {
+            if (TExp1 == null) return TExp2;
+            if (TExp2 == null) return TExp1;
+
+            var invokeExp = System.Linq.Expressions.Expression.Invoke(TExp2, TExp1.Parameters.Cast<System.Linq.Expressions.Expression>());
+            return System.Linq.Expressions.Expression.Lambda<Func<T, bool>>
+                  (System.Linq.Expressions.Expression.AndAlso(TExp1.Body, invokeExp), TExp1.Parameters);
+        }
+
+        /// <summary>
+        /// 拼接假表达式
+        /// </summary>
+        public static Expression<Func<T, bool>> OrElse<T>(this Expression<Func<T, bool>> TExp1,
+            Expression<Func<T, bool>> TExp2) where T : class
+        {
+            if (TExp1 == null) return TExp2;
+            if (TExp2 == null) return TExp1;
+
+            var invokeExp = System.Linq.Expressions.Expression.Invoke(TExp2, TExp1.Parameters.Cast<System.Linq.Expressions.Expression>());
+            return System.Linq.Expressions.Expression.Lambda<Func<T, bool>>
+                  (System.Linq.Expressions.Expression.OrElse(TExp1.Body, invokeExp), TExp1.Parameters);
+        }
+
+        /// <summary>
+        /// 去掉一元表达式的操作符
+        /// </summary>
+        /// <returns></returns>
+        public static Expression ReduceUnary(this Expression exp)
+        {
+            UnaryExpression unaryExpression = exp as UnaryExpression;
+            return unaryExpression != null
+                ? unaryExpression.Operand.ReduceUnary()
+                : exp;
+        }
+
+        /// <summary>
+        /// 判断表达式链是否能通过动态计算，计算出它的值
+        /// </summary>
+        public static bool CanEvaluate(this Expression node)
+        {
+            // => 5
+            // => a.ActiveDate == DateTime.Now
+            // => a.State == (byte)state
+
+            if (node == null) return false;
+            if (node.NodeType == ExpressionType.Constant) return true;
+            if (node.NodeType == ExpressionType.ArrayIndex) return true;
+            if (node.NodeType == ExpressionType.Call)
+            {
+                // List<int>{0}[]
+                MethodCallExpression methodCallExpression = node as MethodCallExpression;
+                Expression expression = methodCallExpression.Object;
+                if (expression != null && Data.TypeUtils.IsCollectionType(expression.Type) && methodCallExpression.Method.Name == "get_Item")
+                {
+                    return true;
+                }
+            }
+
+            var member = node as MemberExpression;
+            if (member == null) return false;
+            if (member.Expression == null) return true;
+            if (member.Expression.NodeType == ExpressionType.Constant) return true;
+
+            return member.Expression.CanEvaluate();
+        }
+
+        /// <summary>
+        /// 计算表达式的值
+        /// </summary>
+        public static ConstantExpression Evaluate(this Expression e)
+        {
+            ConstantExpression node = null;
+            if (e.NodeType == ExpressionType.Constant)
+            {
+                node = e as ConstantExpression;
+            }
+            else
+            {
+                LambdaExpression lambda = e is LambdaExpression ? Expression.Lambda(((LambdaExpression)e).Body) : Expression.Lambda(e);
+                Delegate fn = lambda.Compile();
+
+                node = Expression.Constant(fn.DynamicInvoke(null), e is LambdaExpression ? ((LambdaExpression)e).Body.Type : e.Type);
+            }
+
+            // 枚举要转成 INT
+            if (node.Type.IsEnum) node = Expression.Constant(Convert.ToInt32(node.Value));
+
+            // 返回最终处理的常量表达式s
+            return node;
+        }
+
+        /// <summary>
+        /// 判断属性访问表达式是否有系统动态生成前缀
+        /// <code>
+        /// h__TransparentIdentifier.a.CompanyName
+        /// </code>
+        /// </summary>
+        public static bool IsAnonymous(this Expression node)
+        {
+            // <>h__TransparentIdentifier => h__TransparentIdentifier.a.CompanyName
+            Expression exp = node;
+            ParameterExpression paramExp = exp.NodeType == ExpressionType.Lambda
+                ? (node as LambdaExpression).Parameters[0]
+                : exp as ParameterExpression;
+            if (paramExp != null) return _isAnonymous(paramExp.Name);
+
+            if (exp.NodeType == ExpressionType.MemberAccess)    // <>h__TransparentIdentifier.a.CompanyName
+            {
+                MemberExpression memExp = exp as MemberExpression;
+                if (_isAnonymous(memExp.Member.Name)) return true;
+
+                return IsAnonymous(memExp.Expression);
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// 判断是否是分组表达式
+        /// </summary>
+        public static bool IsGrouping(this Expression node)
+        {
+            //g.Key
+            //g.Key.CompanyName
+            //g.Max()
+            //g=>g.xxx
+            //g.Key.CompanyId.Length
+            //g.Key.Length 
+
+            // g | g=>g.xx
+            Expression exp = node;
+            ParameterExpression paramExp = exp.NodeType == ExpressionType.Lambda
+                ? (node as LambdaExpression).Parameters[0]
+                : exp as ParameterExpression;
+            if (paramExp != null) return _isGrouping(paramExp.Type);
+
+            // g.Max
+            MethodCallExpression callExp = exp as MethodCallExpression;
+            if (callExp != null) return _isGrouping(callExp.Arguments[0].Type);
+
+
+            MemberExpression memExp = exp as MemberExpression;
+            if (memExp != null)
+            {
+                // g.Key
+                var g1 = memExp.Member.Name == "Key" && _isGrouping(memExp.Expression.Type);
+                if (g1) return g1;
+
+                // g.Key.Length | g.Key.Company | g.Key.CompanyId.Length
+                memExp = memExp.Expression as MemberExpression;
+                if (memExp != null)
+                {
+                    g1 = memExp.Member.Name == "Key" && _isGrouping(memExp.Expression.Type) && memExp.Type.Namespace == null; //匿名类没有命令空间
+                    if (g1) return g1;
+                }
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// 在递归访问 MemberAccess 表达式时，判定节点是否能够被继续递归访问
+        /// </summary>
+        public static bool Acceptable(this Expression node)
+        {
+            // a 
+            // <>h__TransparentIdentifier.a
+            // <>h__TransparentIdentifier0.<>h__TransparentIdentifier1.a
+
+            if (node.NodeType == ExpressionType.Parameter) return false;
+
+            if (node.NodeType == ExpressionType.MemberAccess)
+            {
+                MemberExpression m = node as MemberExpression;
+                if (m.Expression.NodeType == ExpressionType.Parameter)
+                {
+                    string name = (m.Expression as ParameterExpression).Name;
+                    if (_isAnonymous(name)) return false;
+                }
+
+                if (m.Expression.NodeType == ExpressionType.MemberAccess)
+                {
+                    string name = (m.Expression as MemberExpression).Member.Name;
+                    if (_isAnonymous(name)) return false;
+                }
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// 取剔除掉系统动态生成前缀后的表达式
+        /// </summary>
+        public static string GetKeyWidthoutAnonymous(this MemberExpression node, bool isDesciptor = false)
+        {
+            List<string> segs = new List<string>();
+            segs.Add(node.Member.Name);
+
+            Expression expression = node.Expression;
+            while (expression.Acceptable())
+            {
+                MemberExpression memberExpression = null;
+                if (expression.NodeType == ExpressionType.MemberAccess) memberExpression = (MemberExpression)expression;
+                else if (expression.NodeType == ExpressionType.Call) memberExpression = (expression as MethodCallExpression).Object as MemberExpression;
+
+                segs.Add(memberExpression.Member.Name);
+                expression = memberExpression.Expression;
+            }
+
+            // 如果读取
+            if (expression.NodeType == ExpressionType.Parameter) segs.Add(isDesciptor ? expression.Type.Name : (expression as ParameterExpression).Name);
+            if (expression.NodeType == ExpressionType.MemberAccess) segs.Add((expression as MemberExpression).Member.Name);
+
+            segs.Reverse();
+            string result = string.Join(".", segs);
+            return result;
+        }
+
+        #endregion
+
+        #region 列表扩展
+
+        /// <summary>
+        /// 取指定列表中符合条件的元素索引
+        /// </summary>
+        public static int IndexOf<T>(this IEnumerable<T> collection, Func<T, bool> predicate)
+        {
+            int i = -1;
+            foreach (T value in collection)
+            {
+                i++;
+                if (predicate(value)) return i;
+            }
+
+            return -1;
+        }
+
+        /// <summary>
+        /// 创建一个集合
+        /// </summary>
+        public static List<TResult> ToList<T, TResult>(this IEnumerable<T> collection, Func<T, TResult> selector)
+        {
+            return collection.Select(selector).ToList();
+        }
+
+        /// <summary>
+        /// 列表转换扩展
+        /// </summary>
+        public static List<TResult> ToList<T, TResult>(this IEnumerable<T> source, Func<T, TResult> selector, Func<T, bool> predicate = null)
+        {
+            if (predicate != null) source = source.Where(predicate);
+            return source.Select(selector).ToList();
+        }
+
+        /// <summary>
+        /// 根据页长计算总页码
+        /// </summary>
+        /// <param name="collection">数据集合</param>
+        /// <param name="pageSize">页码</param>
+        /// <returns></returns>
+        public static int Page<T>(this IEnumerable<T> collection, int pageSize)
+        {
+            int count = 0;
+            if ((collection as ICollection<T>) != null) count = (collection as ICollection<T>).Count;
+            else if ((collection as T[]) != null) count = (collection as T[]).Length;
+            else count = collection.Count();
+
+            int page = (count + pageSize - 1) / pageSize;
+            return page;
+        }
+
+        /// <summary>
+        /// 批量添加命令参数
+        /// </summary>
+        public static void AddRange(this IDataParameterCollection source, IEnumerable<IDbDataParameter> parameters)
+        {
+            if (parameters != null)
+            {
+                foreach (var p in parameters) source.Add(p);
+            }
+        }
+
+        #endregion
+    }
+}
+
+```
+
+### Bug Type:
+NULL_DEREFERENCE
+
+### Qualifier:
+pointer `methodCallExpression` last assigned on line 94 could be null and is dereferenced at line 95, column 17.
+
+### Severity:
+ERROR
+
+### Procedure:
+Boolean XFrameworkExtensions.CanEvaluate(Expression)
+
+### File:
+net45/TZM.XFramework/Common/XFrameworkExtensions.cs
+
+### Key:
+XFrameworkExtensions.cs|CanEvaluate|NULL_DEREFERENCE
+
+### Node Key:
+90535029835413c6e5d1bdebbf52bdf9
+
+### Hash:
+d37146aef0c1f61eb7f3bdca4b334d37
+
+### Bug Type Hum:
+Null Dereference
+
+## Task
+
+Analyze the bug information provided above. Your task is to:
+
+1. **Understand the Bug**: Examine the buggy code and identify what the issue was
+2. **Analyze the Root Cause**: Determine why this bug occurred (logic error, edge case, etc.)
+3. **Evaluate the Fix**: Understand how the after code addresses the issue
+4. **Code Review**: Provide insights on code quality, potential improvements, and best practices
+
+### Analysis Questions:
+- What was the specific bug or issue in the original code?
+- What scenarios would trigger this bug?
+- How does the fix address the root cause?
+- Are there any potential edge cases the fix might miss?
+- What coding practices could have prevented this bug?
+- Are there alternative ways to implement the fix?
+
+Use the provided environment to explore, test, or reproduce the bug if needed.