Files
sdk/runtime/lib/null_patch.dart
T
Matthias Hausner e11ca24053 Use metadata annotation @patch for patch classes
Annotate patch classes and top-level patch functions with @patch
instead of the pseudo-keyword patch. This allows the analyzer
to read patch files, and matches the syntax that dart2js uses.

The deprecated syntax is still supported, but a warning is printed when detected.

BUG=

Review URL: https://codereview.chromium.org/2220883004 .
2016-08-09 09:48:03 -07:00

19 lines
559 B
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.
// Dart core library.
@patch class Null {
factory Null._uninstantiable() {
throw new UnsupportedError("class Null cannot be instantiated");
}
static const _HASH_CODE = 2011; // The year Dart was announced and a prime.
int get hashCode => _HASH_CODE;
int get _identityHashCode => _HASH_CODE;
String toString() => 'null';
}