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// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package types import ( "bytes" "fmt" "go/ast" "go/token" "golang.org/x/tools/go/exact" ) // TODO(gri) Document factory, accessor methods, and fields. Ge...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements commonly used type predicates. package types import "sort" func isNamed(typ Type) bool { if _, ok := typ.(*Basic); ok { return ok ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package types import ( "errors" "fmt" "go/ast" "go/token" pathLib "path" "strconv" "strings" "unicode" "golang.org/x/tools/go/exact" ) // A declInfo...
Go
// Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements the universe and unsafe package scopes. package types import ( "go/token" "strings" "golang.org/x/tools/go/exact" ) var ( Univer...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements objsets. // // An objset is similar to a Scope but objset elements // are identified by their unique id, instead of their // object name...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements type-checking of identifiers and type expressions. package types import ( "go/ast" "go/token" "sort" "strconv" "golang.org/x/too...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements various error reporters. package types import ( "fmt" "go/ast" "go/token" "strings" ) func assert(p bool) { if !p { panic("ass...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package types import ( "go/ast" "go/token" "golang.org/x/tools/go/exact" ) func (check *Checker) reportAltDecl(obj Object) { if pos := obj.Pos(); pos.IsV...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements isTerminating. package types import ( "go/ast" "go/token" ) // isTerminating reports if s is a terminating statement. // If s is la...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements a cache of method sets. package types import "sync" // A MethodSetCache records the method set of each type T for which // MethodSet(...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package types declares the data types and implements // the algorithms for type-checking of Go packages. // Use Check and Config.Check to invoke the type-che...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements typechecking of expressions. package types import ( "fmt" "go/ast" "go/token" "math" "golang.org/x/tools/go/exact" ) /* Basic a...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements method sets. package types import ( "bytes" "fmt" "sort" ) // A MethodSet is an ordered set of concrete or abstract (interface) me...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements Scopes. package types import ( "bytes" "fmt" "io" "sort" "strings" ) // TODO(gri) Provide scopes with a name or other mechanism ...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements typechecking of statements. package types import ( "fmt" "go/ast" "go/token" "golang.org/x/tools/go/exact" ) func (check *Checke...
Go
// Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package types import "sort" // TODO(gri) Revisit factory functions - make sure they have all relevant parameters. // A Type represents a type of Go. // All t...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements initialization and assignment checks. package types import ( "go/ast" "go/token" ) // assignment reports whether x can be assigned ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package types import "fmt" // A Package describes a Go package. type Package struct { path string name string scope *Scope complete bool impor...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build go1.2 package types import "go/ast" func slice3(x *ast.SliceExpr) bool { return x.Slice3 } func sliceMax(x *ast.SliceExpr) ast.Expr { return x....
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build !go1.2 package types import "go/ast" func slice3(x *ast.SliceExpr) bool { return false } func sliceMax(x *ast.SliceExpr) ast.Expr { return nil ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements Sizes. package types // Sizes defines the sizing functions for package unsafe. type Sizes interface { // Alignof returns the alignmen...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements resolveOrder. package types import ( "go/ast" "sort" ) // resolveOrder computes the order in which package-level objects // must be...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file defines operands and associated operations. package types import ( "bytes" "go/ast" "go/token" "golang.org/x/tools/go/exact" ) // An operan...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements New, Eval and EvalNode. package types import ( "fmt" "go/ast" "go/parser" "go/token" "golang.org/x/tools/go/exact" ) // New is ...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements typechecking of builtin function calls. package types import ( "go/ast" "go/token" "golang.org/x/tools/go/exact" ) // builtin typ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file implements printing of expressions. package types import ( "bytes" "go/ast" ) // ExprString returns the (possibly simplified) string represent...
Go
package loader // This file handles cgo preprocessing of files containing `import "C"`. // // DESIGN // // The approach taken is to run the cgo processor on the package's // CgoFiles and parse the output, faking the filenames of the // resulting ASTs so that the synthetic file containing the C types is // called "C" (...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package loader import ( "go/ast" "go/build" "go/parser" "go/token" "io" "os" "path/filepath" "sync" ) // parseFiles parses the Go source files within ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package loader loads, parses and type-checks packages of Go code // plus their transitive closure, and retains both the ASTs and the // derived facts. // // ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This implementation is loosely based on the algorithm described // in: "On the linearization of graphs and writing symbol files", // by R. Griesemer, Technic...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package importer import "golang.org/x/tools/go/types" const ( magic = "\n$$ exports $$\n" version = "v0" ) // Tags. Must be < 0. const ( // Packages pa...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package importer import ( "bytes" "encoding/binary" "fmt" "go/ast" "strings" "golang.org/x/tools/go/exact" "golang.org/x/tools/go/types" ) // debuggin...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package vcs import ( "fmt" "io" "io/ioutil" "log" "net/http" "net/url" ) // httpClient is the default HTTP client, but a variable so it can be // chang...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package vcs import ( "bytes" "encoding/json" "errors" "fmt" "log" "os" "os/exec" "path/filepath" "regexp" "strconv" "strings" ) // Verbose enables...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package vcs import ( "encoding/xml" "fmt" "io" "strings" ) // charsetReader returns a reader for the given charset. Currently // it only supports UTF-8 a...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package vcs import ( "os" "strings" ) // envForDir returns a copy of the environment // suitable for running in the given directory. // The environment is ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer // This file defines a naive Andersen-style solver for the inclusion // constraint system. import ( "fmt" "golang.org/x/tools/go/types" ) ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer import ( "fmt" "go/token" "strings" "golang.org/x/tools/go/ssa" "golang.org/x/tools/go/types" ) // A Label is an entity that may be poin...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer import "fmt" func (c *addrConstraint) String() string { return fmt.Sprintf("addr n%d <- {&n%d}", c.dst, c.src) } func (c *copyConstraint) St...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer import ( "bytes" "fmt" "log" "os" "os/exec" "runtime" "time" "golang.org/x/tools/container/intsets" "golang.org/x/tools/go/types" ) ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer // This file defines the constraint generation phase. // TODO(adonovan): move the constraint definitions and the store() etc // functions whic...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer import ( "golang.org/x/tools/go/types" ) type constraint interface { // For a complex constraint, returns the nodeid of the pointer // to w...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer // This file defines the main datatypes and Analyze function of the pointer analysis. import ( "fmt" "go/token" "io" "os" "reflect" "run...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer // This package defines the treatment of intrinsics, i.e. library // functions requiring special analytical treatment. // // Most of these are ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer import ( "bytes" "fmt" "go/token" "io" "golang.org/x/tools/container/intsets" "golang.org/x/tools/go/callgraph" "golang.org/x/tools/go/...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer // This file implements renumbering, a pre-solver optimization to // improve the efficiency of the solver's points-to set representation. // //...
Go
package pointer // This file implements the generation and resolution rules for // constraints arising from the use of reflection in the target // program. See doc.go for explanation of the representation. // // For consistency, the names of all parameters match those of the // actual functions in the "reflect" packa...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pointer // This file defines the internal (context-sensitive) call graph. import ( "fmt" "go/token" "golang.org/x/tools/go/ssa" ) type cgnode str...
Go
package pointer // This file implements Hash-Value Numbering (HVN), a pre-solver // constraint optimization described in Hardekopf & Lin, SAS'07 (see // doc.go) that analyses the graph topology to determine which sets of // variables are "pointer equivalent" (PE), i.e. must have identical // points-to sets in the solu...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. /* Package pointer implements Andersen's analysis, an inclusion-based pointer analysis algorithm first described in (Andersen, 1994). A pointer analysis relat...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package buildutil import ( "fmt" "go/ast" "go/build" "go/parser" "go/token" "io" "io/ioutil" "os" "path" "path/filepath" "strings" ) // ParseFile b...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package buildutil provides utilities related to the go/build // package in the standard library. // // All I/O is done via the build.Context file system inte...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package gccgoimporter import ( "bufio" "os" "os/exec" "path/filepath" "strings" "golang.org/x/tools/go/types" ) // Information about a specific install...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package gccgoimporter implements Import for gccgo-generated object files. package gccgoimporter import ( "bytes" "debug/elf" "fmt" "io" "io/ioutil" "o...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package gccgoimporter import ( "bytes" "errors" "fmt" "go/token" "io" "strconv" "strings" "text/scanner" "golang.org/x/tools/go/exact" "golang.org/x...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package rename // This file defines the safety checks for each kind of renaming. import ( "fmt" "go/ast" "go/token" "golang.org/x/tools/go/loader" "gola...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package rename contains the implementation of the 'gorename' command // whose main function is in golang.org/x/tools/refactor/rename. // See that package for...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package rename import ( "go/ast" "os" "path/filepath" "reflect" "runtime" "strings" "unicode" "golang.org/x/tools/go/types" ) func objectKind(obj typ...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package rename // This file contains logic related to specifying a renaming: parsing of // the flags as a form of query, and finding the object(s) it denotes. ...
Go
// Package lexical computes the structure of the lexical environment, // including the definition of and references to all universal, // package-level, file-level and function-local entities. It does not // record qualified identifiers, labels, struct fields, or methods. // // It is intended for renaming and refactori...
Go
package eg import ( "fmt" "go/ast" "go/token" "log" "os" "reflect" "golang.org/x/tools/go/exact" "golang.org/x/tools/go/loader" "golang.org/x/tools/go/types" ) // matchExpr reports whether pattern x matches y. // // If tr.allowWildcards, Idents in x that refer to parameters are // treated as wildcards, and ...
Go
package eg // This file defines the AST rewriting pass. // Most of it was plundered directly from // $GOROOT/src/cmd/gofmt/rewrite.go (after convergent evolution). import ( "fmt" "go/ast" "go/token" "os" "reflect" "sort" "strconv" "strings" "golang.org/x/tools/astutil" "golang.org/x/tools/go/types" ) // T...
Go
// Package eg implements the example-based refactoring tool whose // command-line is defined in golang.org/x/tools/cmd/eg. package eg import ( "bytes" "fmt" "go/ast" "go/printer" "go/token" "os" "golang.org/x/tools/go/loader" "golang.org/x/tools/go/types" ) const Help = ` This tool implements example-based r...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package satisfy inspects the type-checked ASTs of Go packages and // reports the set of discovered type constraints of the form (lhs, rhs // Type) where lhs ...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package importgraph computes the forward and reverse import // dependency graphs for all packages in a Go workspace. package importgraph import ( "go/build...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package present import ( "errors" "regexp" "strconv" "unicode/utf8" ) // This file is stolen from go/src/cmd/godoc/codewalk.go. // It's an evaluator for t...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package present import ( "fmt" "log" "net/url" "strings" ) func init() { Register("link", parseLink) } type Link struct { URL *url.URL Label string ...
Go
// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package present import ( "fmt" "strings" ) func init() { Register("iframe", parseIframe) } type Iframe struct { URL string Width int Height int } ...
Go
package present import ( "errors" "html/template" "path/filepath" "strings" ) func init() { Register("html", parseHTML) } func parseHTML(ctx *Context, fileName string, lineno int, text string) (Elem, error) { p := strings.Fields(text) if len(p) != 2 { return nil, errors.New("invalid .html args") } name :=...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package present import ( "fmt" "strings" ) func init() { Register("image", parseImage) } type Image struct { URL string Width int Height int } fun...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package present import ( "bufio" "bytes" "fmt" "html/template" "path/filepath" "regexp" "strconv" "strings" ) // Is the playground available? var Play...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package present import ( "bytes" "html" "html/template" "strings" "unicode" "unicode/utf8" ) /* Fonts are demarcated by an initial and final char brack...
Go
// Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package present import ( "bufio" "bytes" "errors" "fmt" "html/template" "io" "io/ioutil" "log" "net/url" "regexp" "strings" "time" "unicode" "uni...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package present import "strings" func init() { Register("caption", parseCaption) } type Caption struct { Text string } func (c Caption) TemplateName() str...
Go
// Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. /* The present file format Present files have the following format. The first non-blank non-comment line is the title, so the header looks like Title of doc...
Go
/** * SMTP server. * * Sam Thorogood (c) 2010 */ package main import ( "fmt" "flag" "os" "runtime" "strings" "delivers" ) var ( fHelp *bool = flag.Bool("h", false, "to show help") fBindTo *string = flag.String("l", "localhost:60000", "address to bind on") fBasePath *string = flag.String("p", ""...
Go
/** * Multi-client line-buffered TCP server. Provides a Listen method that accepts * a handler method taking a Client (both exported here). * * Sam Thorogood (c) 2010 */ package main import ( "bufio" "fmt" "net" "os" "strings" ) func Listen(target string, handler func(client Client)) (err os.Error) { ...
Go
// Deliver State, for managing incoming mail requests (from any source) and // delivering them to a local file system. package delivers import ( "path" "os" ) /** * Tiny set implementation backed on top of map[string]. Supports .Contains * and .Put. */ type StringSet map[string] interface{} func (s StringSet...
Go
/** * SMTP matchers. * * Sam Thorogood (c) 2010 */ package main import ( "regexp" "strings" ) var ( baseCommand = regexp.MustCompile("^([a-zA-Z]+) +(.+)$") emailPart = regexp.MustCompile("^([a-zA-Z]*) *: *< *(.*) *>( +.*|)$") // Starts with a space, to be repeatedly matched on the last part of emailP...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import ( "fmt" "math" ) type ErrNegativeSqrt float64 func (e ErrNegativeSqrt) Error() string { return fmt.Sprintf("Sqrt: n...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import "fmt" // fibonacci is a function that returns // a function that returns an int. func fibonacci() func() int { f, g :=...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import ( "fmt" "code.google.com/p/go-tour/tree" ) func walkImpl(t *tree.Tree, ch chan int) { if t.Left != nil { walkImpl...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import ( "strings" "code.google.com/p/go-tour/wc" ) func WordCount(s string) map[string]int { m := make(map[string]int) f...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import "code.google.com/p/go-tour/pic" func Pic(dx, dy int) [][]uint8 { p := make([][]uint8, dy) for i := range p { p[i] =...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import ( "io" "os" "strings" ) func rot13(b byte) byte { var a, z byte switch { case 'a' <= b && b <= 'z': a, z = 'a',...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import ( "errors" "fmt" "sync" ) type Fetcher interface { // Fetch returns the body of URL and // a slice of URLs found o...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import ( "image" "image/color" "code.google.com/p/go-tour/pic" ) type Image struct { Height, Width int } func (m Image) ...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import ( "fmt" "math" ) const delta = 1e-6 func Sqrt(x float64) float64 { z := x n := 0.0 for math.Abs(n-z) > delta { ...
Go
// Copyright 2014 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build ignore package main import ( "fmt" "log" "net/http" ) type String string func (s String) ServeHTTP(w http.ResponseWriter, r *http.Request) { ...
Go
// +build OMIT package main import ( "fmt" "time" ) func say(s string) { for i := 0; i < 5; i++ { time.Sleep(100 * time.Millisecond) fmt.Println(s) } } func main() { go say("world") say("hello") }
Go
// +build OMIT package main import ( "fmt" "time" ) func main() { tick := time.Tick(100 * time.Millisecond) boom := time.After(500 * time.Millisecond) for { select { case <-tick: fmt.Println("tick.") case <-boom: fmt.Println("BOOM!") return default: fmt.Println(" .") time.Sleep(50 * ti...
Go
// +build OMIT package main import "fmt" func main() { c := make(chan int, 2) c <- 1 c <- 2 fmt.Println(<-c) fmt.Println(<-c) }
Go
// +build OMIT package main import "fmt" func fibonacci(c, quit chan int) { x, y := 0, 1 for { select { case c <- x: x, y = y, x+y case <-quit: fmt.Println("quit") return } } } func main() { c := make(chan int) quit := make(chan int) go func() { for i := 0; i < 10; i++ { fmt.Println(<-c)...
Go
// +build OMIT package main import ( "fmt" ) type Fetcher interface { // Fetch returns the body of URL and // a slice of URLs found on that page. Fetch(url string) (body string, urls []string, err error) } // Crawl uses fetcher to recursively crawl // pages starting with url, to a maximum of depth. func Crawl(u...
Go
// +build OMIT package main import ( "fmt" ) func fibonacci(n int, c chan int) { x, y := 0, 1 for i := 0; i < n; i++ { c <- x x, y = y, x+y } close(c) } func main() { c := make(chan int, 10) go fibonacci(cap(c), c) for i := range c { fmt.Println(i) } }
Go
// +build OMIT package main import "code.google.com/p/go-tour/tree" // Walk walks the tree t sending all values // from the tree to the channel ch. func Walk(t *tree.Tree, ch chan int) // Same determines whether the trees // t1 and t2 contain the same values. func Same(t1, t2 *tree.Tree) bool func main() { }
Go
// +build OMIT package main import "fmt" func sum(a []int, c chan int) { sum := 0 for _, v := range a { sum += v } c <- sum // send sum to c } func main() { a := []int{7, 2, 8, -9, 4, 0} c := make(chan int) go sum(a[:len(a)/2], c) go sum(a[len(a)/2:], c) x, y := <-c, <-c // receive from c fmt.Println(...
Go
// +build OMIT package main import "fmt" func main() { fmt.Println("Hello, 世界") }
Go
// +build OMIT package main import ( "fmt" "time" ) func main() { fmt.Println("Welcome to the playground!") fmt.Println("The time is", time.Now()) }
Go
// +build OMIT package main import ( "fmt" "math" ) func pow(x, n, lim float64) float64 { if v := math.Pow(x, n); v < lim { return v } return lim } func main() { fmt.Println( pow(3, 2, 10), pow(3, 3, 20), ) }
Go