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/**
* Wraps console operations in Effect.
*
* The `Console` service exposes common console methods such as logging,
* warnings, errors, groups, counters, tables, and timers. Because console access
* goes through a service, programs can use custom console implementations in
* tests or other environments. This module also includes scoped helpers that
* close console groups or timers automatically.
*
* @since 2.0.0
*/
import type * as Context from "./Context.ts";
import type * as Effect from "./Effect.ts";
import type { Scope } from "./Scope.ts";
/**
* Represents a console interface for logging, debugging, timing, and grouping output.
*
* @category models
* @since 2.0.0
*/
export interface Console {
assert(condition: boolean, ...args: ReadonlyArray<any>): void;
clear(): void;
count(label?: string): void;
countReset(label?: string): void;
debug(...args: ReadonlyArray<any>): void;
dir(item: any, options?: any): void;
dirxml(...args: ReadonlyArray<any>): void;
error(...args: ReadonlyArray<any>): void;
group(...args: ReadonlyArray<any>): void;
groupCollapsed(...args: ReadonlyArray<any>): void;
groupEnd(): void;
info(...args: ReadonlyArray<any>): void;
log(...args: ReadonlyArray<any>): void;
table(tabularData: any, properties?: ReadonlyArray<string>): void;
time(label?: string): void;
timeEnd(label?: string): void;
timeLog(label?: string, ...args: ReadonlyArray<any>): void;
trace(...args: ReadonlyArray<any>): void;
warn(...args: ReadonlyArray<any>): void;
}
/**
* Context reference for the current console service in the Effect system, allowing access to the active console implementation from within the Effect context.
*
* **When to use**
*
* Use when you need an effect to run against a provided console implementation,
* such as tests or alternate runtimes, rather than the default console.
*
* **Details**
*
* When no override is provided, the reference resolves to `globalThis.console`.
*
* **Example** (Accessing the current console)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Console.consoleWith((console) =>
* Effect.sync(() => {
* console.log("Hello from current console!")
* })
* )
* ```
*
* @see {@link consoleWith} for using the current console service inside an effect
*
* @category references
* @since 2.0.0
*/
export declare const Console: Context.Reference<Console>;
/**
* Creates an Effect that provides access to the current console service and lets you perform operations with it within an Effect context.
*
* **Example** (Using the current console service)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Console.consoleWith((console) =>
* Effect.sync(() => {
* console.log("Hello, world!")
* console.error("This is an error message")
* })
* )
* ```
*
* @category constructors
* @since 2.0.0
*/
export declare const consoleWith: <A, E, R>(f: (console: Console) => Effect.Effect<A, E, R>) => Effect.Effect<A, E, R>;
/**
* Writes the supplied assertion message to the console as an error when `condition` is false; when `condition` is true, no console output is produced.
*
* **Example** (Logging failed assertions)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.assert(2 + 2 === 4, "Math is working correctly")
* yield* Console.assert(2 + 2 === 5, "This will be logged as an error")
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const assert: (condition: boolean, ...args: ReadonlyArray<any>) => Effect.Effect<void>;
/**
* Runs the current console service's clear operation.
*
* **When to use**
*
* Use to request that the active console implementation clear its visible
* output.
*
* **Gotchas**
*
* The clearing behavior depends on the active console implementation and host
* environment.
*
* **Example** (Clearing console output)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.log("This will be cleared")
* yield* Console.clear
* yield* Console.log("This appears after clearing")
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const clear: Effect.Effect<void>;
/**
* Logs and increments the counter associated with `label`, using the console's default counter when no label is provided.
*
* **Example** (Counting repeated calls)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.count("my-counter")
* yield* Console.count("my-counter") // Will show: my-counter: 2
* yield* Console.count() // Default counter
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const count: (label?: string) => Effect.Effect<void>;
/**
* Resets the counter associated with the specified label back to zero.
*
* **Example** (Resetting a counter)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.count("my-counter")
* yield* Console.count("my-counter") // Will show: my-counter: 2
* yield* Console.countReset("my-counter")
* yield* Console.count("my-counter") // Will show: my-counter: 1
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const countReset: (label?: string) => Effect.Effect<void>;
/**
* Writes a debug message through the current `Console` service.
*
* **Details**
*
* The arguments are passed to the service's `debug` method when the returned
* Effect is executed. Any filtering behavior depends on the active console
* implementation.
*
* **Example** (Writing debug messages)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.debug("Debug info:", { userId: 123, action: "login" })
* yield* Console.debug("Processing step", 1, "of", 5)
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const debug: (...args: ReadonlyArray<any>) => Effect.Effect<void>;
/**
* Displays an interactive list of the properties of the specified object, optionally using console-specific inspection options for debugging complex data structures.
*
* **Example** (Inspecting an object)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* const obj = { name: "John", age: 30, nested: { city: "New York" } }
* yield* Console.dir(obj)
* yield* Console.dir(obj, { depth: 2, colors: true })
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const dir: (item: any, options?: any) => Effect.Effect<void>;
/**
* Displays an interactive tree of descendant XML or HTML elements, which is particularly useful for inspecting DOM elements in browser environments.
*
* **Example** (Inspecting XML-like data)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.dirxml("<user id=\"1\">Ada</user>")
* })
*
* Effect.runSync(program)
* // <user id="1">Ada</user>
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const dirxml: (...args: ReadonlyArray<any>) => Effect.Effect<void>;
/**
* Writes an error-level message to the console, typically displayed with error
* styling by the active console implementation.
*
* **Example** (Writing error messages)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.error("Something went wrong!")
* yield* Console.error("Error details:", {
* code: 500,
* message: "Internal Server Error"
* })
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const error: (...args: ReadonlyArray<any>) => Effect.Effect<void>;
/**
* Creates a scoped console group, optionally collapsed and labeled, and closes it automatically when the Effect scope is finalized.
*
* **Example** (Grouping scoped output)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Effect.scoped(
* Effect.gen(function*() {
* yield* Console.group({ label: "User Processing" })
* yield* Console.log("Loading user data...")
* yield* Console.log("Validating user...")
* yield* Console.log("User processed successfully")
* })
* )
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const group: (options?: {
label?: string | undefined;
collapsed?: boolean | undefined;
} | undefined) => Effect.Effect<void, never, Scope>;
/**
* Writes an informational message to the console, typically displayed with info
* styling by the active console implementation.
*
* **Example** (Writing informational messages)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.info("Application started successfully")
* yield* Console.info("Server configuration:", {
* port: 3000,
* env: "development"
* })
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const info: (...args: ReadonlyArray<any>) => Effect.Effect<void>;
/**
* Logs a general-purpose message to the console.
*
* **Example** (Writing log messages)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.log("Hello, world!")
* yield* Console.log("User data:", { name: "John", age: 30 })
* yield* Console.log("Processing", 42, "items")
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const log: (...args: ReadonlyArray<any>) => Effect.Effect<void>;
/**
* Displays tabular data as a formatted table in the console, optionally limited to selected properties.
*
* **Example** (Displaying tabular data)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* const users = [
* { name: "John", age: 30, city: "New York" },
* { name: "Jane", age: 25, city: "London" },
* { name: "Bob", age: 35, city: "Paris" }
* ]
* yield* Console.table(users)
* yield* Console.table(users, ["name", "age"]) // Only show specific columns
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const table: (tabularData: any, properties?: ReadonlyArray<string>) => Effect.Effect<void>;
/**
* Starts a scoped timer for `label` and automatically ends it when the Effect scope is finalized.
*
* **Example** (Timing scoped work)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Effect.scoped(
* Effect.gen(function*() {
* yield* Console.time("operation-timer")
* yield* Effect.sleep("1 second")
* yield* Console.log("Operation completed")
* // Timer ends automatically when scope closes
* })
* )
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const time: (label?: string | undefined) => Effect.Effect<void, never, Scope>;
/**
* Logs the elapsed time for an existing timer without stopping it, allowing progress reports for long-running operations.
*
* **Example** (Logging timer progress)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Effect.scoped(
* Effect.gen(function*() {
* yield* Console.time("long-operation")
* yield* Effect.sleep("500 millis")
* yield* Console.timeLog("long-operation", "Halfway done")
* yield* Effect.sleep("500 millis")
* // Timer ends when scope closes
* })
* )
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const timeLog: (label?: string, ...args: ReadonlyArray<any>) => Effect.Effect<void>;
/**
* Writes the current stack trace to the console to show how the current point in
* the code was reached.
*
* **Example** (Writing stack traces)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.trace("Debug trace point")
* yield* Console.trace("Function call:", { functionName: "processData" })
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const trace: (...args: ReadonlyArray<any>) => Effect.Effect<void>;
/**
* Writes a warning-level message to the console, typically displayed with
* warning styling by the active console implementation.
*
* **Example** (Writing warning messages)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.warn("This feature is deprecated")
* yield* Console.warn("Performance warning:", {
* slowQuery: "SELECT * FROM large_table"
* })
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const warn: (...args: ReadonlyArray<any>) => Effect.Effect<void>;
/**
* Runs an Effect inside an optionally labeled or collapsed console group, starting the group before execution and ending it after the Effect completes.
*
* **Example** (Wrapping an effect in a group)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.withGroup(
* Effect.gen(function*() {
* yield* Console.log("Step 1: Initialize")
* yield* Console.log("Step 2: Process")
* yield* Console.log("Step 3: Complete")
* }),
* { label: "Processing Steps", collapsed: false }
* )
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const withGroup: ((options?: {
readonly label?: string | undefined;
readonly collapsed?: boolean | undefined;
}) => <A, E, R>(self: Effect.Effect<A, E, R>) => Effect.Effect<A, E, R>) & (<A, E, R>(self: Effect.Effect<A, E, R>, options?: {
readonly label?: string | undefined;
readonly collapsed?: boolean | undefined;
}) => Effect.Effect<A, E, R>);
/**
* Runs an Effect with a console timer, starting the timer before execution and ending it after the Effect completes.
*
* **Example** (Timing an effect)
*
* ```ts
* import { Console, Effect } from "effect"
*
* const program = Effect.gen(function*() {
* yield* Console.withTime(
* Effect.gen(function*() {
* yield* Effect.sleep("1 second")
* yield* Console.log("Operation completed")
* }),
* "my-operation"
* )
* })
* ```
*
* @category accessors
* @since 2.0.0
*/
export declare const withTime: ((label?: string) => <A, E, R>(self: Effect.Effect<A, E, R>) => Effect.Effect<A, E, R>) & (<A, E, R>(self: Effect.Effect<A, E, R>, label?: string) => Effect.Effect<A, E, R>);
//# sourceMappingURL=Console.d.ts.map

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