library packages begin with a dotless path element.

The module requirements of std and cmd do not influence version
selection in other modules. They are only considered when running
module commands like 'go get' and 'go mod vendor' from a directory
in GOROOT/src.

Maintaining vendor directories
==============================

Before updating vendor directories, ensure that module mode is enabled.

set to the clang wrapper that invokes clang for iOS. For example, this command runs
 all.bash on the iOS emulator:

	GOOS=ios GOARCH=amd64 CGO_ENABLED=1 CC_FOR_TARGET=$(pwd)/../misc/ios/clangwrap.sh ./all.bash

If CC_FOR_TARGET is not set when the toolchain is built (make.bash or all.bash), CC
can be set on the command line. For example,

pkg os, var ErrNotExist error
pkg os, var ErrPermission error
pkg os, var Interrupt Signal
pkg os, var Kill Signal
pkg os, var Stderr *File
pkg os, var Stdin *File
pkg os, var Stdout *File
pkg os/exec, func Command(string, ...string) *Cmd
pkg os/exec, func LookPath(string) (string, error)
pkg os/exec, method (*Cmd) CombinedOutput() ([]uint8, error)
pkg os/exec, method (*Cmd) Output() ([]uint8, error)

## Tools {#tools}

### Go command {#go-command}

# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.

# Run go tool dist to install a command.
# The -v causes dist to print the name of each directory as it runs.
# The -vv causes dist to print each build command as it runs.
# go tool dist clean cleans all directories, not just this one,
# but it's as close as we can get.

# Default target (first).
install:

are also treated as invalid.
(Older toolchains ignore `//go:debug` directives entirely.)

The defaults that will be compiled into a main package
are reported by the command:

{{raw `
	go list -f '{{.DefaultGODEBUG}}' my/main/package
`}}

Only differences from the base Go toolchain defaults are reported.

When testing a package, `//go:debug` lines in the `*_test.go`

# This file contains the initial defaults for go command configuration.
# Values set by 'go env -w' and written to the user's go/env file override these.
# The environment overrides everything else.

# Use the Go module mirror and checksum database by default.
# See https://proxy.golang.org for details.
GOPROXY=https://proxy.golang.org,direct
GOSUMDB=sum.golang.org

# Automatically download newer toolchains as directed by go.mod files.

The `initial` and `next` subdirectories of this directory are for release notes.

## For developers

Release notes should be added to `next` by editing existing files or creating
new files. **Do not add RELNOTE=yes comments in CLs.** Instead, add a file to
the CL (or ask the author to do so).

At the end of the development cycle, the files will be merged by being
concatenated in sorted order by pathname. Files in the directory matching the

Go is an open source programming language that makes it easy to build simple,
reliable, and efficient software.

![Gopher image](https://golang.org/doc/gopher/fiveyears.jpg)
*Gopher image by [Renee French][rf], licensed under [Creative Commons 4.0 Attributions license][cc4-by].*

Our canonical Git repository is located at https://go.googlesource.com/go.
There is a mirror of the repository at https://github.com/golang/go.

pkg go/ast, const RECV = 2
pkg go/ast, const SEND = 1
pkg go/ast, const Typ = 3
pkg go/ast, const Var = 4
pkg go/ast, func NewCommentMap(*token.FileSet, Node, []*CommentGroup) CommentMap
pkg go/ast, method (CommentMap) Comments() []*CommentGroup
pkg go/ast, method (CommentMap) Filter(Node) CommentMap
pkg go/ast, method (CommentMap) String() string
pkg go/ast, method (CommentMap) Update(Node, Node) Node