lrn@google.com
f9b8b18ab8
Reuses as much as possible of the parent zone's implementation representation. Increases performance of primitive tests of only async operations by ~10% (but with a lot of variability and a spurious regression). R=floitsch@google.com Review URL: https://codereview.chromium.org//331993005 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@37807 260f80e4-7a28-3924-810f-c04153c831b5
39 lines
1.4 KiB
Dart
39 lines
1.4 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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patch class Timer {
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/*patch*/ static Timer _createTimer(Duration duration, void callback()) {
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if (_TimerFactory._factory == null) {
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throw new UnsupportedError("Timer interface not supported.");
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}
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int milliseconds = duration.inMilliseconds;
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if (milliseconds < 0) milliseconds = 0;
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return _TimerFactory._factory(milliseconds, (_) { callback(); }, false);
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}
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/*patch*/ static Timer _createPeriodicTimer(Duration duration,
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void callback(Timer timer)) {
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if (_TimerFactory._factory == null) {
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throw new UnsupportedError("Timer interface not supported.");
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}
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int milliseconds = duration.inMilliseconds;
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if (milliseconds < 0) milliseconds = 0;
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return _TimerFactory._factory(milliseconds, callback, true);
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}
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}
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typedef Timer _TimerFactoryClosure(int milliseconds,
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void callback(Timer timer),
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bool repeating);
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class _TimerFactory {
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static _TimerFactoryClosure _factory;
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}
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// TODO(ahe): Warning: this is NOT called by Dartium. Instead, it sets
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// [_TimerFactory._factory] directly.
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void _setTimerFactoryClosure(_TimerFactoryClosure closure) {
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_TimerFactory._factory = closure;
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}
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