srdjan@google.com
031eab4ab9
Review URL: https://chromiumcodereview.appspot.com//10860018 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10924 260f80e4-7a28-3924-810f-c04153c831b5
56 lines
1.3 KiB
Dart
56 lines
1.3 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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class A {
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bool _result;
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A(this._result);
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operator ==(x) { return _result; }
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}
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opaque(x) => [x,1,'y'][0]; // confuse the optimizers.
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class Death {
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operator ==(x) { throw 'Dead!'; }
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}
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death() => opaque(new Death());
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nullFn() => opaque(null);
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tests() {
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var alwaysTrue = new A(true);
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var alwaysFalse = new A(false);
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Expect.isFalse(alwaysFalse == alwaysFalse);
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Expect.isTrue(alwaysFalse != alwaysFalse);
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Expect.isTrue(alwaysTrue == alwaysTrue);
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Expect.isTrue(alwaysTrue == 5);
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Expect.isFalse(alwaysTrue == null);
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Expect.isFalse(null == alwaysTrue);
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Expect.isTrue(alwaysTrue != null);
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Expect.isTrue(null != alwaysTrue);
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Expect.isTrue(null == null);
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Expect.isFalse(null != null);
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Expect.throws(() => death() == 5);
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Expect.isFalse(death() == nullFn());
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Expect.isFalse(nullFn() == death());
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Expect.isTrue(nullFn() == nullFn());
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Expect.isTrue(death() != nullFn());
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Expect.isTrue(nullFn() != death());
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Expect.isFalse(nullFn() != nullFn());
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if (death() == nullFn()) {
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throw "failed";
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}
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if (death() != nullFn()) {
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} else {
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throw "failed";
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}
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}
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main() {
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for (int i = 0; i < 1000; i++) tests();
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}
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