[dart:io] Namespaces for file IO

sdk/lib/io/link.dart

 // Copyright (c) 2013, 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;
 
 /**
  * [Link] objects are references to filesystem links.
  *
  */
@@ skipping 150 matching lines @@
 
   Link get absolute => new Link(_absolutePath);
 
   Future<Link> create(String target, {bool recursive: false}) {
     if (Platform.isWindows) {
       target = _makeWindowsLinkTarget(target);
     }
     var result =
         recursive ? parent.create(recursive: true) : new Future.value(null);
     return result
-        .then((_) => _IOService._dispatch(_FILE_CREATE_LINK, [path, target]))
+        .then((_) => _File
+            ._dispatchWithNamespace(_FILE_CREATE_LINK, [null, path, target]))
         .then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionFromResponse(
             response, "Cannot create link to target '$target'", path);
       }
       return this;
     });
   }
 
   void createSync(String target, {bool recursive: false}) {
     if (recursive) {
       parent.createSync(recursive: true);
     }
     if (Platform.isWindows) {
       target = _makeWindowsLinkTarget(target);
     }
-    var result = _File._createLink(path, target);
+    var result = _File._createLink(_Namespace._namespace, path, target);
     throwIfError(result, "Cannot create link", path);
   }
 
   // Put target into the form "\??\C:\my\target\dir".
   String _makeWindowsLinkTarget(String target) {
     Uri base = new Uri.file('${Directory.current.path}\\');
     Uri link = new Uri.file(path);
     Uri destination = new Uri.file(target);
     String result = base.resolveUri(link).resolveUri(destination).toFilePath();
     if (result.length > 3 && result[1] == ':' && result[2] == '\\') {
@@ skipping 19 matching lines @@
     // Atomically changing a link can be done by creating the new link, with
     // a different name, and using the rename() posix call to move it to
     // the old name atomically.
     return delete().then<Link>((_) => create(target));
   }
 
   Future<Link> _delete({bool recursive: false}) {
     if (recursive) {
       return new Directory(path).delete(recursive: true).then((_) => this);
     }
-    return _IOService._dispatch(_FILE_DELETE_LINK, [path]).then((response) {
+    return _File._dispatchWithNamespace(_FILE_DELETE_LINK, [null, path]).then(
+        (response) {
       if (_isErrorResponse(response)) {
         throw _exceptionFromResponse(response, "Cannot delete link", path);
       }
       return this;
     });
   }
 
   void _deleteSync({bool recursive: false}) {
     if (recursive) {
       return new Directory(path).deleteSync(recursive: true);
     }
-    var result = _File._deleteLinkNative(path);
+    var result = _File._deleteLinkNative(_Namespace._namespace, path);
     throwIfError(result, "Cannot delete link", path);
   }
 
   Future<Link> rename(String newPath) {
-    return _IOService
-        ._dispatch(_FILE_RENAME_LINK, [path, newPath]).then((response) {
+    return _File._dispatchWithNamespace(
+        _FILE_RENAME_LINK, [null, path, newPath]).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionFromResponse(
             response, "Cannot rename link to '$newPath'", path);
       }
       return new Link(newPath);
     });
   }
 
   Link renameSync(String newPath) {
-    var result = _File._renameLink(path, newPath);
+    var result = _File._renameLink(_Namespace._namespace, path, newPath);
     throwIfError(result, "Cannot rename link '$path' to '$newPath'");
     return new Link(newPath);
   }
 
   Future<String> target() {
-    return _IOService._dispatch(_FILE_LINK_TARGET, [path]).then((response) {
+    return _File._dispatchWithNamespace(_FILE_LINK_TARGET, [null, path]).then(
+        (response) {
       if (_isErrorResponse(response)) {
         throw _exceptionFromResponse(
             response, "Cannot get target of link", path);
       }
       return response;
     });
   }
 
   String targetSync() {
-    var result = _File._linkTarget(path);
+    var result = _File._linkTarget(_Namespace._namespace, path);
     throwIfError(result, "Cannot read link", path);
     return result;
   }
 
   static throwIfError(Object result, String msg, [String path = ""]) {
     if (result is OSError) {
       throw new FileSystemException(msg, path, result);
     }
   }
 
   bool _isErrorResponse(response) {
     return response is List && response[0] != _SUCCESS_RESPONSE;
   }
 
   _exceptionFromResponse(response, String message, String path) {
     assert(_isErrorResponse(response));
     switch (response[_ERROR_RESPONSE_ERROR_TYPE]) {
       case _ILLEGAL_ARGUMENT_RESPONSE:
         return new ArgumentError();
       case _OSERROR_RESPONSE:
         var err = new OSError(response[_OSERROR_RESPONSE_MESSAGE],
             response[_OSERROR_RESPONSE_ERROR_CODE]);
         return new FileSystemException(message, path, err);
       default:
         return new Exception("Unknown error");
     }
   }
 }