dart-sdk/runtime/lib/deferred_load_patch.dart
Matthias Hausner 1a6d1eca32 Implement @patch annotation for patch class members
Allow members of patch classes to be annotated with @patch. The VM
ignores the annotation. I simply replaces the original method
if the name matches, or reports an error if field names match.

Adding a bit is_patched to members to do more checking remains a
TODO. There are currently no unused bits available, and I don’t want
to increase the size of Function objects for this.

BUG=
R=asiva@google.com

Review URL: https://codereview.chromium.org/2230383003 .
2016-08-10 12:54:57 -07:00

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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.
final Set<String> _loadedLibraries = new Set<String>();
@patch class DeferredLibrary {
@patch Future<Null> load() {
// Dummy implementation that should eventually be replaced by real
// implementation.
Future future =
new Future<Null>.value(null);
_loadedLibraries.add(libraryName);
return future;
}
}