| // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| library front_end.physical_file_system; |
| |
| import 'dart:async'; |
| import 'dart:io' as io; |
| |
| import 'package:path/path.dart' as p; |
| |
| import 'file_system.dart'; |
| |
| /// Concrete implementation of [FileSystem] which performs its operations using |
| /// I/O. |
| /// |
| /// Not intended to be implemented or extended by clients. |
| class PhysicalFileSystem implements FileSystem { |
| static final PhysicalFileSystem instance = new PhysicalFileSystem._(); |
| |
| PhysicalFileSystem._(); |
| |
| @override |
| p.Context get context => p.context; |
| |
| @override |
| FileSystemEntity entityForUri(Uri uri) { |
| if (uri.scheme != 'file' && uri.scheme != '') { |
| throw new ArgumentError('File URI expected'); |
| } |
| return new _PhysicalFileSystemEntity(Uri.base.resolveUri(uri)); |
| } |
| } |
| |
| /// Concrete implementation of [FileSystemEntity] for use by |
| /// [PhysicalFileSystem]. |
| class _PhysicalFileSystemEntity implements FileSystemEntity { |
| @override |
| final Uri uri; |
| |
| _PhysicalFileSystemEntity(this.uri); |
| |
| @override |
| int get hashCode => uri.hashCode; |
| |
| @override |
| bool operator ==(Object other) => |
| other is _PhysicalFileSystemEntity && other.uri == uri; |
| |
| @override |
| Future<List<int>> readAsBytes() => new io.File.fromUri(uri).readAsBytes(); |
| |
| @override |
| Future<String> readAsString() => new io.File.fromUri(uri).readAsString(); |
| } |