// we compare the file created by "go build" against a file written explicitly
	// by os.WriteFile.
	//
	// (See https://go.dev/issue/62724, https://go.dev/issue/17909.)
	control := tg.path("control")
	tg.creatingTemp(control)
	if err := os.WriteFile(control, []byte("#!/bin/sh\nexit 0"), 0777); err != nil {
		t.Fatal(err)
	}
	cfi, err := os.Stat(control)
	if err != nil {
		t.Fatal(err)

	}

	tmpdir, err := os.MkdirTemp("", "TestSymbolTooLarge")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(tmpdir)

	src := filepath.Join(tmpdir, "p.go")
	err = os.WriteFile(src, []byte("package p; var x [1<<32]byte"), 0666)
	if err != nil {
		t.Fatalf("failed to write source file: %v\n", err)
	}
	obj := filepath.Join(tmpdir, "p.o")

	t.queue(op)
}

const maxLineLength = 4096

func (t *Terminal) setLine(newLine []rune, newPos int) {
	if t.echo {
		t.moveCursorToPos(0)
		t.writeLine(newLine)
		for i := len(newLine); i < len(t.line); i++ {
			t.writeLine(space)
		}
		t.moveCursorToPos(newPos)
	}
	t.line = newLine
	t.pos = newPos
}

func (t *Terminal) advanceCursor(places int) {
	t.cursorX += places

	if err := cgotest.OverlayDir(modRoot, "testdata"); err != nil {
		log.Panic(err)
	}
	if err := os.Chdir(modRoot); err != nil {
		log.Panic(err)
	}
	os.Setenv("PWD", modRoot)
	if err := os.WriteFile("go.mod", []byte("module cgolife\n"), 0666); err != nil {
		log.Panic(err)
	}

	return m.Run()
}

// TestTestRun runs a test case for cgo //export.
func TestTestRun(t *testing.T) {
	testenv.MustHaveGoRun(t)

		panic(err)
	}
	defer os.RemoveAll(dir)

	args := []string{"go", "build"}
	write := func(prefix string, i int, data string) {
		filename := filepath.Join(dir, fmt.Sprintf("%s%d.go", prefix, i))
		if err := os.WriteFile(filename, []byte(data), 0o644); err != nil {
			panic(err)
		}
		args = append(args, filename)
	}

	for i := 0; i < 100; i++ {
		write("a", i, `package p
`)
	}
	for i := 0; i < 100; i++ {

	}
	diff := diff.Diff(srcPath, old, "go help documentation | gofmt", alldocs)
	if diff == nil {
		t.Logf("%s is up to date.", srcPath)
		return
	}

	if *fixDocs {
		if err := os.WriteFile(srcPath, alldocs, 0666); err != nil {
			t.Fatal(err)
		}
		t.Logf("wrote %d bytes to %s", len(alldocs), srcPath)
	} else {
		t.Logf("\n%s", diff)
		t.Errorf("%s is stale. To update, run 'go generate cmd/go'.", srcPath)

import java.io.Closeable;
import java.io.File;

public interface FileLock extends Closeable, FileAccess {
    /**
     * Returns true if the most recent mutation method ({@link #updateFile(Runnable)} or {@link #writeFile(Runnable)} attempted by any process succeeded
     * (ie a process did not crash while updating the target file).
     *
     * Returns false if no mutation method has ever been called for the target file.
     */

// present in the coverage report from F.
func genAuxMeta(t *testing.T, dstdir string) (string, string) {
	// Do a GOCOVERDIR=<tmp> go run hello.go
	src := filepath.Join(dstdir, "hello.go")
	if err := os.WriteFile(src, []byte(hellogo), 0777); err != nil {
		t.Fatalf("write failed: %v", err)
	}
	args := []string{"run", "-covermode=" + testing.CoverMode(), src}
	cmd := exec.Command(testenv.GoToolPath(t), args...)

    @Suppress("unused")
    @TaskAction
    fun run() {
        outputDir.get().asFile.apply {
            recreate()
            writeFiles()
        }
    }

    protected
    fun File.writeFile(relativePath: String, text: String) {
        resolve(relativePath).apply {
            parentFile.mkdirs()
            writeText(text)
        }
    }

    private
    fun File.recreate() {

  c <- 1
}
`

func main() {
	dir, err := ioutil.TempDir("", "21576")
	if err != nil {
		log.Fatal(err)
	}
	defer os.RemoveAll(dir)

	file := filepath.Join(dir, "main.go")
	if err := ioutil.WriteFile(file, []byte(prog), 0655); err != nil {
		log.Fatalf("Write error %v", err)
	}

	// Using a timeout of 1 minute in case other factors might slow
	// down the start of "go run". See https://golang.org/issue/34836.