Jacob Richman
2dcd56ef43
There are far too many files here to review everyone carefully. Spot checking most of the diffs look good as test code is generally written with less care than application code so lots of ugly formatting get through. If people notice files where the automated formatting bothers them feel free to comment indicating file names and I'll move spaces within comments to make the formatting cleaner and use comments to force block formatting as I have done for other case where formatting looked bad. BUG= R=efortuna@google.com Review-Url: https://codereview.chromium.org/2771453003 .
49 lines
1.4 KiB
Dart
49 lines
1.4 KiB
Dart
// Copyright (c) 2013, 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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import "package:expect/expect.dart";
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class Override {
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int hash;
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int get superHash => super.hashCode;
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int get hashCode => hash;
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int foo() => hash; // Just some function that can be closurized.
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bool operator ==(Object other) =>
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other is Override && (other as Override).hash == hash;
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}
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int bar() => 42; // Some global function.
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main() {
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var o = new Object();
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var hash = o.hashCode;
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// Doesn't change.
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Expect.equals(hash, o.hashCode);
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Expect.equals(hash, identityHashCode(o));
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var c = new Override();
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int identityHash = c.superHash;
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hash = (identityHash == 42) ? 37 : 42;
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c.hash = hash;
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Expect.equals(hash, c.hashCode);
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Expect.equals(identityHash, identityHashCode(c));
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// These classes don't override hashCode.
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var samples = [0, 0x10000000, 1.5, -0, null, true, false, const Object()];
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for (var v in samples) {
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print(v);
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Expect.equals(v.hashCode, identityHashCode(v));
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}
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// These do, or might do, but we can still use hashCodeOf and get the same
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// result each time.
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samples = ["string", "", (x) => 42, c.foo, bar];
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for (var v in samples) {
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print(v);
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Expect.equals(v.hashCode, v.hashCode);
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Expect.equals(identityHashCode(v), identityHashCode(v));
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}
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}
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