Index: pkg/front_end/lib/file_system.dart |
diff --git a/pkg/front_end/lib/file_system.dart b/pkg/front_end/lib/file_system.dart |
index 6e57c266c067bdd9b731335abc37ece3bfa672ec..0afb39e7a7b72fd7fc812b50da4879f82ffb4364 100644 |
--- a/pkg/front_end/lib/file_system.dart |
+++ b/pkg/front_end/lib/file_system.dart |
@@ -6,8 +6,6 @@ library front_end.file_system; |
import 'dart:async'; |
-import 'package:path/path.dart' as path; |
- |
/// Abstract interface to file system operations. |
/// |
/// All front end interaction with the file system goes through this interface; |
@@ -17,12 +15,6 @@ import 'package:path/path.dart' as path; |
/// |
/// Not intended to be implemented or extended by clients. |
abstract class FileSystem { |
- /// Returns a path context suitable for use with this [FileSystem]. |
- /// |
- /// TODO(paulberry): try to eliminate all usages of this. Since the |
- /// FileSystem API now uses URIs rather than paths, it should not be needed. |
- path.Context get context; |
- |
/// Returns a [FileSystemEntity] corresponding to the given [uri]. |
/// |
/// Uses of `..` and `.` in the URI are normalized before returning. |
@@ -41,8 +33,7 @@ abstract class FileSystem { |
/// |
/// Not intended to be implemented or extended by clients. |
abstract class FileSystemEntity { |
- /// Returns the absolute normalized URI represented by this file system |
- /// entity. |
+ /// The absolute normalized URI represented by this file system entity. |
/// |
/// Note: this is not necessarily the same as the URI that was passed to |
/// [FileSystem.entityForUri], since the URI might have been normalized. |
@@ -65,4 +56,12 @@ abstract class FileSystemEntity { |
/// file exists, the entity is a directory, or the file is not valid UTF-8), |
/// the future is completed with an [Exception]. |
Future<String> readAsString(); |
+ |
+ /// Whether this file system entity exists. |
+ Future<bool> exists(); |
+ |
+ /// Extracts the last-modification time of the file system entity, if it |
+ /// exists and it is a file, otherwise the future is completed with an |
+ /// [Exception]. |
+ Future<DateTime> lastModified(); |
} |