Big merge from experimental to bleeding edge.

sdk/lib/io/directory_impl.dart

 // Copyright (c) 2012, 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.
 
 part of dart.io;
 
 class _Directory implements Directory {
   static const CREATE_REQUEST = 0;
   static const DELETE_REQUEST = 1;
   static const EXISTS_REQUEST = 2;
@@ skipping 13 matching lines @@
   external static _createTemp(String template);
   external static int _exists(String path);
   external static _create(String path);
   external static _delete(String path, bool recursive);
   external static _rename(String path, String newPath);
   external static List _list(String path, bool recursive);
   external static SendPort _newServicePort();
 
   Future<bool> exists() {
     _ensureDirectoryService();
-    List request = new List(2);
+    List request = new List.fixedLength(2);
     request[0] = EXISTS_REQUEST;
     request[1] = _path;
-    return _directoryService.call(request).transform((response) {
+    return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionOrErrorFromResponse(response, "Exists failed");
       }
       return response == 1;
     });
   }
 
   bool existsSync() {
     if (_path is !String) {
       throw new ArgumentError();
     }
     var result = _exists(_path);
     if (result is OSError) {
       throw new DirectoryIOException("Exists failed", _path, result);
     }
     return (result == 1);
   }
 
   // Compute the index of the first directory in the list that exists. If
   // none of the directories exist dirsToCreate.length is returned.
   Future<int> _computeExistingIndex(List dirsToCreate) {
     var future;
     var notFound = dirsToCreate.length;
     for (var i = 0; i < dirsToCreate.length; i++) {
       if (future == null) {
-        future = dirsToCreate[i].exists().transform((e) => e ? i : notFound);
+        future = dirsToCreate[i].exists().then((e) => e ? i : notFound);
       } else {
-        future = future.chain((index) {
+        future = future.then((index) {
           if (index != notFound) {
             return new Future.immediate(index);
           }
-          return dirsToCreate[i].exists().transform((e) => e ? i : notFound);
+          return dirsToCreate[i].exists().then((e) => e ? i : notFound);
         });
       }
     }
     if (future == null) {
       return new Future.immediate(notFound);
     } else {
       return future;
     }
   }
 
   Future<Directory> createRecursively() {
     if (_path is !String) {
       throw new ArgumentError();
     }
     var path = new Path.fromNative(_path);
     var dirsToCreate = [];
     var terminator = path.isAbsolute ? '/' : '';
     while (path.toString() != terminator) {
       dirsToCreate.add(new Directory.fromPath(path));
       path = path.directoryPath;
     }
-    return _computeExistingIndex(dirsToCreate).chain((index) {
+    return _computeExistingIndex(dirsToCreate).then((index) {
       var future;
       for (var i = index - 1; i >= 0 ; i--) {
         if (future == null) {
           future = dirsToCreate[i].create();
         } else {
-          future = future.chain((_) {
+          future = future.then((_) {
             return dirsToCreate[i].create();
           });
         }
       }
       if (future == null) {
         return new Future.immediate(this);
       } else {
-        return future.transform((_) => this);
+        return future.then((_) => this);
       }
     });
   }
 
   Future<Directory> create({recursive: false}) {
     if (recursive) return createRecursively();
     _ensureDirectoryService();
-    List request = new List(2);
+    List request = new List.fixedLength(2);
     request[0] = CREATE_REQUEST;
     request[1] = _path;
-    return _directoryService.call(request).transform((response) {
+    return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionOrErrorFromResponse(response, "Creation failed");
       }
       return this;
     });
   }
 
   void createRecursivelySync() {
     var path = new Path.fromNative(_path);
     var dirsToCreate = [];
@@ skipping 15 matching lines @@
     }
     if (recursive) return createRecursivelySync();
     var result = _create(_path);
     if (result is OSError) {
       throw new DirectoryIOException("Creation failed", _path, result);
     }
   }
 
   Future<Directory> createTemp() {
     _ensureDirectoryService();
-    List request = new List(2);
+    List request = new List.fixedLength(2);
     request[0] = CREATE_TEMP_REQUEST;
     request[1] = _path;
-    return _directoryService.call(request).transform((response) {
+    return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionOrErrorFromResponse(response,
                                       "Creation of temporary directory failed");
       }
       return new Directory(response);
     });
   }
 
   Directory createTempSync() {
     if (_path is !String) {
       throw new ArgumentError();
     }
     var result = _createTemp(path);
     if (result is OSError) {
       throw new DirectoryIOException("Creation of temporary directory failed",
                                      _path,
                                      result);
     }
     return new Directory(result);
   }
 
   Future<Directory> _deleteHelper(bool recursive, String errorMsg) {
   }
 
   Future<Directory> delete({recursive: false}) {
     _ensureDirectoryService();
-    List request = new List(3);
+    List request = new List.fixedLength(3);
     request[0] = DELETE_REQUEST;
     request[1] = _path;
     request[2] = recursive;
-    return _directoryService.call(request).transform((response) {
+    return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionOrErrorFromResponse(response, "Deletion failed");
       }
       return this;
     });
   }
 
   void deleteSync({recursive: false}) {
     if (_path is !String) {
       throw new ArgumentError();
     }
     var result = _delete(_path, recursive);
     if (result is OSError) {
       throw new DirectoryIOException("Deletion failed", _path, result);
     }
   }
 
   Future<Directory> rename(String newPath) {
     _ensureDirectoryService();
-    List request = new List(3);
+    List request = new List.fixedLength(3);
     request[0] = RENAME_REQUEST;
     request[1] = _path;
     request[2] = newPath;
-    return _directoryService.call(request).transform((response) {
+    return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionOrErrorFromResponse(response, "Rename failed");
       }
       return new Directory(newPath);
     });
   }
 
   Directory renameSync(String newPath) {
     if (_path is !String || newPath is !String) {
       throw new ArgumentError();
@@ skipping 53 matching lines @@
     const int LIST_DIRECTORY = 0;
     const int LIST_FILE = 1;
     const int LIST_ERROR = 2;
     const int LIST_DONE = 3;
 
     final int RESPONSE_TYPE = 0;
     final int RESPONSE_PATH = 1;
     final int RESPONSE_COMPLETE = 1;
     final int RESPONSE_ERROR = 2;
 
-    List request = new List(3);
+    List request = new List.fixedLength(3);
     request[0] = _Directory.LIST_REQUEST;
     request[1] = path;
     request[2] = recursive;
     ReceivePort responsePort = new ReceivePort();
     // Use a separate directory service port for each listing as
     // listing operations on the same directory can run in parallel.
     _Directory._newServicePort().send(request, responsePort.toSendPort());
     responsePort.receive((message, replyTo) {
       if (message is !List || message[RESPONSE_TYPE] is !int) {
         responsePort.close();
@@ skipping 56 matching lines @@
     } else {
       throw e;
     }
   }
 
   Function _onDir;
   Function _onFile;
   Function _onDone;
   Function _onError;
 }