// 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

// A StatFS is a file system with a Stat method.
type StatFS interface {
	FS

	// Stat returns a FileInfo describing the file.
	// If there is an error, it should be of type *PathError.
	Stat(name string) (FileInfo, error)
}

// Stat returns a FileInfo describing the named file from the file system.
//
// If fs implements StatFS, Stat calls fs.Stat.
// Otherwise, Stat opens the file to stat it.
func ( FS,  string) (FileInfo, error) {
	if ,  := .(StatFS);  {
		return .Stat()
	}

	,  := .Open()
	if  != nil {
		return nil, 
	}
	defer .Close()
	return .Stat()
}