return nil, nil, fmt.Errorf("parsing sample %s: %v", line, err)
			}
			if s.Value[1], err = strconv.ParseInt(value2, 0, 64); err != nil {
				return nil, nil, fmt.Errorf("parsing sample %s: %v", line, err)
			}

			switch pType {
			case "heap":
				const javaHeapzSamplingRate = 524288 // 512K
				if s.Value[0] == 0 {
					return nil, nil, fmt.Errorf("parsing sample %s: second value must be non-zero", line)

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

// Package pgo contains the compiler-agnostic portions of PGO profile handling.
// Notably, parsing pprof profiles and serializing/deserializing from a custom
// intermediate representation.
package pgo

import (
	"errors"
	"fmt"
	"internal/profile"
	"io"
	"sort"
)

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

// Package pgo contains the compiler-agnostic portions of PGO profile handling.
// Notably, parsing pprof profiles and serializing/deserializing from a custom
// intermediate representation.
package pgo

// Profile contains the processed data from the PGO profile.
type Profile struct {

		if err != nil {
			return written, err
		}
	}

	if err := bw.Flush(); err != nil {
		return written, err
	}

	// No need to serialize TotalWeight, it can be trivially recomputed
	// during parsing.

	return written, nil

		log.Fatalf("invalid value %q for -lang: %v", base.Flag.Lang, err)
	}

	if def := currentLang(); base.Flag.Lang != def {
		defVers, err := parseLang(def)
		if err != nil {
			log.Fatalf("internal error parsing default lang %q: %v", def, err)
		}
		if langWant.major > defVers.major || (langWant.major == defVers.major && langWant.minor > defVers.minor) {

	if err != nil {
		return nil, fmt.Errorf("error parsing %s: %v", name, err)
	}
	defer of.Close()

	return b.openMachOCommon(name, of, start, limit, offset)
}

func (b *binrep) openELF(name string, start, limit, offset uint64, relocationSymbol string) (plugin.ObjFile, error) {
	ef, err := elfOpen(name)
	if err != nil {
		return nil, fmt.Errorf("error parsing %s: %v", name, err)
	}
	defer ef.Close()

	if len(matches[2]) > 0 {
		minor = atoi(string(matches[2][1:]))
	}
	if len(matches[3]) > 0 {
		patch = atoi(string(matches[3][1:]))
	}
	if parseError != nil {
		t.Logf("error parsing swig version %q, continuing anyway: %s", string(matches[0]), parseError)
		return
	}
	t.Logf("found swig version %d.%d.%d", major, minor, patch)
	if major < 3 || (major == 3 && minor == 0 && patch < 6) {

func parseFixPrint(t *testing.T, fn func(*ast.File) bool, desc, in string, mustBeGofmt bool) (out string, fixed, ok bool) {
	file, err := parser.ParseFile(fset, desc, in, parserMode)
	if err != nil {
		t.Errorf("parsing: %v", err)
		return
	}

	outb, err := gofmtFile(file)
	if err != nil {
		t.Errorf("printing: %v", err)
		return
	}
	if s := string(outb); in != s && mustBeGofmt {

		err.addAltDecl(alt)
		err.report()
		return false
	}
	return true
}

func (check *Checker) tag(t *syntax.BasicLit) string {
	// If t.Bad, an error was reported during parsing.
	if t != nil && !t.Bad {
		if t.Kind == syntax.StringLit {
			if val, err := strconv.Unquote(t.Value); err == nil {
				return val
			}
		}

			if hideErrors {
				continue
			}
			Fatalf("go: parsing $GOFLAGS: non-flag %q", f)
		}

		name := f[1:]
		if name[0] == '-' {
			name = name[1:]
		}
		if i := strings.Index(name, "="); i >= 0 {
			name = name[:i]
		}
		if !hasFlag(Go, name) {
			if hideErrors {
				continue
			}
			Fatalf("go: parsing $GOFLAGS: unknown flag -%s", name)
		}
	}
}