src/

The gosymbols command prints type information for package-level symbols.

Package gotests contains the core logic for generating table-driven tests.

A commandline tool for generating table-driven Go tests.

Package process is a thin wrapper around the gotests library.

Package frame contains data structures and related functions for parsing and searching through Dwarf .debug_frame data.

Package proc is a low-level package that provides methods to manipulate the process we are debugging.

Package terminal implements functions for responding to user input and dispatching to appropriate backend commands.

Package lint contains a linter for Go source code.

golint lints the Go source files named on its command line.

Pholcus（幽灵蛛）是一款纯Go语言编写的支持分布式的高并发、重量级爬虫软件，定位于互联网数据采集，为具备一定Go或JS编程基础的人提供一个只需关注规则定制的功能强大的爬虫工具。

app interface for graphical user interface.

surfer是一款Go语言编写的高并发web下载器，支持 GET/POST/HEAD 方法及 http/https 协议，同时支持固定UserAgent自动保存cookie与随机大量UserAgent禁用cookie两种模式，高度模拟浏览器行为，可实现模拟登录等功能。

Package agent generates user agents strings for well known browsers and for custom browsers.

数据收集

结果收集与输出

[spider frame (golang)] Pholcus（幽灵蛛）是一款纯Go语言编写的高并发、分布式、重量级爬虫软件，支持单机、服务端、客户端三种运行模式，拥有Web、GUI、命令行三种操作界面；规则简单灵活、批量任务并发、输出方式丰富（mysql/mongodb/csv/excel等）、有大量Demo共享；同时她还支持横纵向两种抓取模式，支持模拟登录和任务暂停、取消等一系列高级功能； （官方QQ群：Go大数据 42731170，欢迎加入我们的讨论）。

Package config is used to parse config Usage: import(

Package goquery implements features similar to jQuery, including the chainable syntax, to manipulate and query an HTML document.

This package is a character-set conversion library for Go.

taken from http://golang.org/src/pkg/net/ipraw_test.go

通用资源池，动态增加资源实例，并支持空闲资源定时回收功能。

Package session provider

Package websocket implements a client and server for the WebSocket protocol as specified in RFC 6455.

[spider frame (golang)] Pholcus（幽灵蛛）是一款纯Go语言编写的高并发、分布式、重量级爬虫软件，支持单机、服务端、客户端三种运行模式，拥有Web、GUI、命令行三种操作界面；规则简单灵活、批量任务并发、输出方式丰富（mysql/mongodb/csv/excel等）、有大量Demo共享；同时她还支持横纵向两种抓取模式，支持模拟登录和任务暂停、取消等一系列高级功能； （官方QQ群：Go大数据 42731170，欢迎加入我们的讨论）。

impl generates method stubs for implementing an interface.

Godef prints the source location of definitions in Go programs.

Package ast declares the types used to represent syntax trees for Go packages.

A parser for Go source files.

Package printer implements printing of AST nodes.

Package scanner implements a scanner for Go source text.

The sym package provides a way to iterate over and change the symbols in Go source files.

This package defines constants representing the lexical tokens of the Go programming language and basic operations on tokens (printing, predicates).

Types infers source locations and types from Go expressions.

Package returns implements a Go pretty-printer (like package "go/format") that also adds zero-value return values as necessary to incomplete return statements.

Command gopkgs list your installed Go packages for import.

Package parse provides support for parsing benchmark results as generated by 'go test -bench'.

Package blog implements a web server for articles written in present format.

Package atom defines XML data structures for an Atom feed.

The benchcmp command displays performance changes between benchmarks.

Bundle creates a single-source-file version of a source package suitable for inclusion in a particular target package.

callgraph: a tool for reporting the call graph of a Go program.

Compilebench benchmarks the speed of the Go compiler.

Cover is a program for analyzing the coverage profiles generated by 'go test -coverprofile=cover.out'.

The digraph command performs queries over unlabelled directed graphs represented in text form.

The eg command performs example-based refactoring.

The fiximports command fixes import declarations to use the canonical import path for packages that have an "import comment" as defined by https://golang.org/s/go14customimport.

The go-contrib-init command helps new Go contributors get their development environment set up for the Go contribution process.

The godex command prints (dumps) exported information of packages or selected package objects.

Godoc extracts and generates documentation for Go programs.

Command goimports updates your Go import lines, adding missing ones and removing unreferenced ones.

The gomvpkg command moves go packages, updating import declarations.

The gorename command performs precise type-safe renaming of identifiers in Go source code.

The gotype command, like the front-end of a Go compiler, parses and type-checks a single Go package.

Goyacc is a version of yacc for Go.

guru: a tool for answering questions about Go source code.

Package serial defines the guru's schema for -json output.

heapview is a tool for viewing Go heap dumps.

This program takes an HTML file and outputs a corresponding article file in present format.

Present displays slide presentations and articles.

ssadump: a tool for displaying and interpreting the SSA form of Go programs.

The stress utility is intended for catching sporadic failures.

Stringer is a tool to automate the creation of methods that satisfy the fmt.Stringer interface.

Command tip is the tip.golang.org server, serving the latest HEAD straight from the Git oven.

Toolstash provides a way to save, run, and restore a known good copy of the Go toolchain and to compare the object files generated by two toolchains.

Package intsets provides Sparse, a compact and fast representation for sparse sets of int values.

Package cover provides support for parsing coverage profiles generated by "go test -coverprofile=cover.out".

Package astutil contains common utilities for working with the Go AST.

Package buildutil provides utilities related to the go/build package in the standard library.

Package callgraph defines the call graph and various algorithms and utilities to operate on it.

Package cha computes the call graph of a Go program using the Class Hierarchy Analysis (CHA) algorithm.

This package provides Rapid Type Analysis (RTA) for Go, a fast algorithm for call graph construction and discovery of reachable code (and hence dead code) and runtime types.

Package static computes the call graph of a Go program containing only static call edges.

Package gccgoexportdata provides functions for reading export data files containing type information produced by the gccgo compiler.

Package gcexportdata provides functions for locating, reading, and writing export data files containing type information produced by the gc compiler.

Package gcimporter15 provides various functions for reading gc-generated object files that can be used to implement the Importer interface defined by the Go 1.5 standard library package.

Package loader loads a complete Go program from source code, parsing and type-checking the initial packages plus their transitive closure of dependencies.

Package pointer implements Andersen's analysis, an inclusion-based pointer analysis algorithm first described in (Andersen, 1994).

Package ssa defines a representation of the elements of Go programs (packages, types, functions, variables and constants) using a static single-assignment (SSA) form intermediate representation (IR) for the bodies of functions.

Package ssa/interp defines an interpreter for the SSA representation of Go programs.

Package typeutil defines various utilities for types, such as Map, a mapping from types.Type to interface{} values.

Package godoc is a work-in-progress (2013-07-17) package to begin splitting up the godoc binary into multiple pieces.

Package analysis performs type and pointer analysis and generates mark-up for the Go source view.

Package redirect provides hooks to register HTTP handlers that redirect old godoc paths to their new equivalents and assist in accessing the issue tracker, wiki, code review system, etc.

Package static exports a map of static file content that supports the godoc user interface.

Package util contains utility types and functions for godoc.

Package vfs defines types for abstract file system access and provides an implementation accessing the file system of the underlying OS.

Package gatefs provides an implementation of the FileSystem interface that wraps another FileSystem and limits its concurrency.

Package httpfs implements http.FileSystem using a godoc vfs.FileSystem.

Package mapfs file provides an implementation of the FileSystem interface based on the contents of a map[string]string.

Package zipfs file provides an implementation of the FileSystem interface based on the contents of a .zip file.

Package imports implements a Go pretty-printer (like package "go/format") that also adds or removes import statements as necessary.

Package playground registers HTTP handlers at "/compile" and "/share" that proxy requests to the golang.org playground service.

Package socket implements an WebSocket-based playground backend.

The present file format

Package eg implements the example-based refactoring tool whose command-line is defined in golang.org/x/tools/cmd/eg.

Package importgraph computes the forward and reverse import dependency graphs for all packages in a Go workspace.

Package rename contains the implementation of the 'gorename' command whose main function is in golang.org/x/tools/cmd/gorename.

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 is a non-trivial interface, rhs satisfies this interface, and this fact is necessary for the package to be well-typed.

Package returns implements a Go pretty-printer (like package "go/format") that also adds zero-value return values as necessary to incomplete return statements.