return fs.ReadFile(fsOnly{fsys}, name)
}

func (fsys MapFS) Stat(name string) (fs.FileInfo, error) {
	return fs.Stat(fsOnly{fsys}, name)
}

func (fsys MapFS) ReadDir(name string) ([]fs.DirEntry, error) {
	return fs.ReadDir(fsOnly{fsys}, name)
}

func (fsys MapFS) Glob(pattern string) ([]string, error) {
	return fs.Glob(fsOnly{fsys}, pattern)
}

type noSub struct {
	MapFS
}

import (
	"bytes"
	"image"
	"os"
	"path/filepath"
	"strings"
	"testing"
)

func FuzzDecode(f *testing.F) {
	if testing.Short() {
		f.Skip("Skipping in short mode")
	}

	testdata, err := os.ReadDir("../testdata")
	if err != nil {
		f.Fatalf("failed to read testdata directory: %s", err)
	}
	for _, de := range testdata {
		if de.IsDir() || !strings.HasSuffix(de.Name(), ".gif") {
			continue
		}

// and returns a set of the filenames copied.
func copyBinaries(srcDir string, targetDirs []string) (sets.String, error) {
	copiedFilenames := sets.String{}
	srcFiles, err := os.ReadDir(srcDir)
	if err != nil {
		return copiedFilenames, err
	}

	for _, f := range srcFiles {
		if f.IsDir() {
			continue
		}

		filename := f.Name()
		srcFilepath := filepath.Join(srcDir, filename)

	}()
	// This is a blocking call. But the above routine takes care of ensuring that this is terminated once the queue is shutdown
	c.processQueueItems(ctx, 1)

	timestamp := now.Format(timestampFormat)
	logs, err := os.ReadDir(dir)
	require.NoError(t, err)
	assert.Len(t, logs, 5)
	assert.Equal(t, testLogs[0], logs[0].Name())
	assert.Equal(t, testLogs[1]+"."+timestamp, logs[1].Name())
	assert.Equal(t, testLogs[4]+compressSuffix, logs[2].Name())

	t.Helper()
	dirs, err := f.ReadDir(name)
	if err != nil {
		t.Error(err)
		return
	}
	var names []string
	for _, d := range dirs {
		name := d.Name()
		if d.IsDir() {
			name += "/"
		}
		names = append(names, name)
	}
	if !reflect.DeepEqual(names, expect) {
		t.Errorf("readdir %v = %v, want %v", name, names, expect)
	}
}

// Tests for issue 49514.

package main

import (
	"bytes"
	"fmt"
	"internal/goexperiment"
	"log"
	"os"
	"reflect"
	"strings"
)

func main() {
	// Delete existing experiment constant files.
	ents, err := os.ReadDir(".")
	if err != nil {
		log.Fatal(err)
	}
	for _, ent := range ents {
		name := ent.Name()
		if !strings.HasPrefix(name, "exp_") {
			continue
		}
		// Check that this is definitely a generated file.

	}
}
-- empty/empty.go --
package empty
-- contains_files/contains_files.go --
package main

import (
	"fmt"
	"path/filepath"
	"io/ioutil"
	"os"
)

func main() {
	infos, err := ioutil.ReadDir(filepath.Clean(os.Args[1]))
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	if len(infos) == 0 {
		os.Exit(1)
	}

import (
	"fmt"
	"io/fs"
	"path/filepath"
	"sort"
	"strconv"
	"strings"

	"cmd/go/internal/fsys"
)

func ScanDir(dir string, tags map[string]bool) ([]string, []string, error) {
	infos, err := fsys.ReadDir(dir)
	if err != nil {
		return nil, nil, err
	}
	var files []string
	for _, info := range infos {
		name := info.Name()

		// If the directory entry is a symlink, stat it to obtain the info for the

	if err != nil {
		log.Fatal(err)
	}

	fmt.Printf("%s", b)

	// Output:
	// Go is a general-purpose language designed with systems programming in mind.
}

func ExampleReadDir() {
	files, err := ioutil.ReadDir(".")
	if err != nil {
		log.Fatal(err)
	}

	for _, file := range files {
		fmt.Println(file.Name())
	}
}

func ExampleTempDir() {
	content := []byte("temporary file's content")

	wantLen, err := strconv.Atoi(os.Args[2])
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	testName := os.Args[1]
	dir := filepath.Join("testdata/fuzz", testName)

	files, err := ioutil.ReadDir(dir)
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}

	if len(files) == 0 {
		fmt.Fprintf(os.Stderr, "expect at least one failure to be written to testdata\n")
		os.Exit(1)
	}