John Messerly
73 lines
2.0 KiB
Dart
73 lines
2.0 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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// Dart test program for testing the instanceof operation.
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// Regression test for issue 5216.
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// VMOptions=--optimization-counter-threshold=10 --no-use-osr
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import "package:expect/expect.dart";
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class Foo<T> {
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bool isT() => "a string" is T;
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bool isNotT() => "a string" is! T;
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bool isListT() => [0, 1, 2] is List<T>;
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bool isNotListT() => [0, 1, 2] is! List<T>;
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bool isAlsoListT() => <int>[0, 1, 2] is List<T>;
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bool isNeitherListT() => <int>[0, 1, 2] is! List<T>;
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}
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testFooString() {
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var o = new Foo<String>();
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Expect.isTrue(o.isT());
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Expect.isTrue(!o.isNotT());
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Expect.isTrue(o.isListT());
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Expect.isTrue(!o.isNotListT());
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Expect.isTrue(!o.isAlsoListT()); /// 01: ok
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Expect.isTrue(o.isNeitherListT()); /// 01: ok
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for (var i = 0; i < 20; i++) {
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// Make sure methods are optimized.
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o.isT();
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o.isNotT();
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o.isListT();
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o.isNotListT();
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o.isAlsoListT(); /// 01: ok
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o.isNeitherListT(); /// 01: ok
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}
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Expect.isTrue(o.isT(), "1");
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Expect.isTrue(!o.isNotT(), "2");
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Expect.isTrue(o.isListT(), "3");
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Expect.isTrue(!o.isNotListT(), "4");
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Expect.isTrue(!o.isAlsoListT(), "5"); /// 01: ok
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Expect.isTrue(o.isNeitherListT(), "6"); /// 01: ok
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}
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testFooInt() {
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var o = new Foo<int>();
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Expect.isTrue(!o.isT());
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Expect.isTrue(o.isNotT());
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Expect.isTrue(o.isListT());
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Expect.isTrue(!o.isNotListT());
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Expect.isTrue(o.isAlsoListT());
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Expect.isTrue(!o.isNeitherListT());
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for (var i = 0; i < 20; i++) {
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// Make sure methods are optimized.
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o.isT();
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o.isNotT();
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o.isListT();
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o.isNotListT();
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o.isAlsoListT();
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o.isNeitherListT();
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}
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Expect.isTrue(!o.isT());
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Expect.isTrue(o.isNotT());
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Expect.isTrue(o.isListT());
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Expect.isTrue(!o.isNotListT());
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Expect.isTrue(o.isAlsoListT());
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Expect.isTrue(!o.isNeitherListT());
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}
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main() {
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testFooString();
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testFooInt();
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}
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