regis@google.com
a72c2146ba
Modify growth policy for cache of type arguments instantiations. Add language test for generic closure. R=iposva@google.com Review URL: https://codereview.chromium.org//175403004 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@32940 260f80e4-7a28-3924-810f-c04153c831b5
62 lines
1.7 KiB
Dart
62 lines
1.7 KiB
Dart
// Copyright (c) 2014, 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 constructors and initializers.
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// Check that generic closures are properly instantiated.
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import 'package:expect/expect.dart';
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typedef T F<T>(T x);
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typedef R G<T, R>(T x);
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class C<T> {
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get f => (T x) => 2*x;
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T g(T x) => 3*x;
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}
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main() {
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var c = new C<int>();
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var f = c.f;
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var g = c.g;
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Expect.equals(42, f(21));
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Expect.equals(42, g(14));
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Expect.isTrue(f is Function);
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Expect.isTrue(g is Function);
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Expect.isTrue(f is F);
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Expect.isTrue(g is F);
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Expect.isTrue(f is F<int>);
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Expect.isTrue(g is F<int>);
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Expect.isTrue(f is! F<bool>);
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Expect.isTrue(g is! F<bool>);
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Expect.isTrue(f is G<int, int>);
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Expect.isTrue(g is G<int, int>);
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Expect.isTrue(f is G<int, bool>);
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Expect.isTrue(g is! G<int, bool>);
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Expect.equals("(int) => dynamic", f.runtimeType.toString());
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Expect.equals("(int) => int", g.runtimeType.toString());
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c = new C<bool>();
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f = c.f;
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g = c.g;
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Expect.isTrue(f is F);
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Expect.isTrue(g is F);
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Expect.isTrue(f is! F<int>);
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Expect.isTrue(g is! F<int>);
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Expect.isTrue(f is F<bool>);
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Expect.isTrue(g is F<bool>);
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Expect.equals("(bool) => dynamic", f.runtimeType.toString());
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Expect.equals("(bool) => bool", g.runtimeType.toString());
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c = new C();
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f = c.f;
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g = c.g;
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Expect.isTrue(f is F);
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Expect.isTrue(g is F);
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Expect.isTrue(f is F<int>);
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Expect.isTrue(g is F<int>);
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Expect.isTrue(f is F<bool>);
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Expect.isTrue(g is F<bool>);
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Expect.equals("(dynamic) => dynamic", f.runtimeType.toString());
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Expect.equals("(dynamic) => dynamic", g.runtimeType.toString());
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} |