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Current Path: /opt/golang/1.22.0/src/io/fs

📁 ..
📄 example_test.go(462 B)
📄 format.go(1.75 KB)
📄 format_test.go(2.51 KB)
📄 fs.go(9.39 KB)
📄 fs_test.go(847 B)
📄 glob.go(3.14 KB)
📄 glob_test.go(2.52 KB)
📄 readdir.go(1.86 KB)
📄 readdir_test.go(2.62 KB)
📄 readfile.go(1.79 KB)
📄 readfile_test.go(1.82 KB)
📄 stat.go(803 B)
📄 stat_test.go(949 B)
📄 sub.go(3.62 KB)
📄 sub_test.go(1.5 KB)
📄 walk.go(4.69 KB)
📄 walk_test.go(3.04 KB)

Editing: readdir.go

// Copyright 2020 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 fs

import (
	"errors"
	"sort"
)

// ReadDirFS is the interface implemented by a file system
// that provides an optimized implementation of [ReadDir].
type ReadDirFS interface {
	FS

// ReadDir reads the named directory
	// and returns a list of directory entries sorted by filename.
	ReadDir(name string) ([]DirEntry, error)
}

// ReadDir reads the named directory
// and returns a list of directory entries sorted by filename.
//
// If fs implements [ReadDirFS], ReadDir calls fs.ReadDir.
// Otherwise ReadDir calls fs.Open and uses ReadDir and Close
// on the returned file.
func ReadDir(fsys FS, name string) ([]DirEntry, error) {
	if fsys, ok := fsys.(ReadDirFS); ok {
		return fsys.ReadDir(name)
	}

file, err := fsys.Open(name)
	if err != nil {
		return nil, err
	}
	defer file.Close()

dir, ok := file.(ReadDirFile)
	if !ok {
		return nil, &PathError{Op: "readdir", Path: name, Err: errors.New("not implemented")}
	}

list, err := dir.ReadDir(-1)
	sort.Slice(list, func(i, j int) bool { return list[i].Name() < list[j].Name() })
	return list, err
}

// dirInfo is a DirEntry based on a FileInfo.
type dirInfo struct {
	fileInfo FileInfo
}

func (di dirInfo) IsDir() bool {
	return di.fileInfo.IsDir()
}

func (di dirInfo) Type() FileMode {
	return di.fileInfo.Mode().Type()
}

func (di dirInfo) Info() (FileInfo, error) {
	return di.fileInfo, nil
}

func (di dirInfo) Name() string {
	return di.fileInfo.Name()
}

func (di dirInfo) String() string {
	return FormatDirEntry(di)
}

// FileInfoToDirEntry returns a [DirEntry] that returns information from info.
// If info is nil, FileInfoToDirEntry returns nil.
func FileInfoToDirEntry(info FileInfo) DirEntry {
	if info == nil {
		return nil
	}
	return dirInfo{fileInfo: info}
}

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Editing: readdir.go

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