return "", "", false
	}
	return username, password, true
}

// SetBasicAuth sets the request's Authorization header to use HTTP
// Basic Authentication with the provided username and password.
//
// With HTTP Basic Authentication the provided username and password
// are not encrypted. It should generally only be used in an HTTPS
// request.
//
// The username may not contain a colon. Some protocols may impose

	return typePointers{elem: addr, addr: addr, mask: readUintptr(gcdata), typ: typ}
}

// typePointersOfType is like typePointersOf, but assumes addr points to one or more
// contiguous instances of the provided type. The provided type must not be nil and
// it must not have its type metadata encoded as a gcprog.
//
// It returns an iterator that tiles typ.GCData starting from addr. It's the caller's
// responsibility to limit iteration.

// Copyright 2009 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 dnsmessage provides a mostly RFC 1035 compliant implementation of
// DNS message packing and unpacking.
//
// The package also supports messages with Extension Mechanisms for DNS
// (EDNS(0)) as defined in RFC 6891.
//
// This implementation is designed to minimize heap allocations and avoid

	dialsInProgress  wantConnQueue

	// Proxy specifies a function to return a proxy for a given
	// Request. If the function returns a non-nil error, the
	// request is aborted with the provided error.
	//
	// The proxy type is determined by the URL scheme. "http",
	// "https", "socks5", and "socks5h" are supported. If the scheme is empty,
	// "http" is assumed.
	// "socks5" is treated the same as "socks5h".

	// memory for now.
	//
	// If this is nil, it is populated with the real thing in init.
	scavenge func(n uintptr) (uintptr, int64)

	// shouldStop is a callback called in the work loop and provides a
	// point that can force the scavenger to stop early, for example because
	// the scavenge policy dictates too much has been scavenged already.
	//
	// If this is nil, it is populated with the real thing in init.

		// same toolchain.
	}
	return roots
}

// setDefaultBuildMod sets a default value for cfg.BuildMod if the -mod flag
// wasn't provided. setDefaultBuildMod may be called multiple times.
func setDefaultBuildMod() {
	if cfg.BuildModExplicit {
		if inWorkspaceMode() && cfg.BuildMod != "readonly" && cfg.BuildMod != "vendor" {
			switch cfg.CmdName {

	    when all tests are complete.
	    Writes test binary as -c would.

	-blockprofilerate n
	    Control the detail provided in goroutine blocking profiles by
	    calling runtime.SetBlockProfileRate with n.
	    See 'go doc runtime.SetBlockProfileRate'.
	    The profiler aims to sample, on average, one blocking event every
	    n nanoseconds the program spends blocked. By default,

// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE

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

// Package parser implements a parser for Go source files. Input may be
// provided in a variety of forms (see the various Parse* functions); the
// output is an abstract syntax tree (AST) representing the Go source. The
// parser is invoked through one of the Parse* functions.

package parser

import (

// unionWithPointer is true for a Go type that represents a C union (or class)
// that may contain a pointer. This is used for cgo pointer checking.
var unionWithPointer = make(map[ast.Expr]bool)

// anonymousStructTag provides a consistent tag for an anonymous struct.
// The same dwarf.StructType pointer will always get the same tag.
var anonymousStructTag = make(map[*dwarf.StructType]string)

func (c *typeConv) Init(ptrSize, intSize int64) {