Bob Nystrom
14011f47e3
They're back from the grave, and ready to party! Change-Id: I088134a9be7ecabf1fbf751c015a656a15cabff9 Reviewed-on: https://dart-review.googlesource.com/12821 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: William Hesse <whesse@google.com>
73 lines
1.4 KiB
Dart
73 lines
1.4 KiB
Dart
// Copyright (c) 2011, 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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// VMOptions=--checked
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// Dart test program testing generic type allocations and generic type tests.
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import "package:expect/expect.dart";
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class A {
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const A();
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}
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class AA extends A {
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const AA();
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}
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class AX {
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const AX();
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}
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class B<T extends A> {
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final A a_;
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final T t_;
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const B(T t)
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: a_ = t,
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t_ = t;
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isT(x) {
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return x is T;
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}
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}
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class C<T> {
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B<T> b_;
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C(T t) : b_ = new B<T>(t) {}
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}
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class D {
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C<AA> caa_;
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D() : caa_ = new C<AA>(const AA()) {}
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}
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class E {
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C<AX> cax_;
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E() : cax_ = new C<AX>(const AX()) {}
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}
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class GenericTest {
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static test() {
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int result = 0;
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D d = new D();
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Expect.equals(true, d.caa_.b_ is B<AA>);
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Expect.equals(true, d.caa_.b_.isT(const AA()));
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C c = new C(const AA()); // c is of raw type C, T in C<T> is dynamic.
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Expect.equals(true, c.b_ is B);
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Expect.equals(true, c.b_ is B<AA>);
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Expect.equals(true, c.b_.isT(const AA()));
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Expect.equals(true, c.b_.isT(const AX()));
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try {
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E e = new E(); // Throws a type error, if type checks are enabled.
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} on TypeError catch (error) {
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result = 1;
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}
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return result;
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}
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static testMain() {
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Expect.equals(1, test());
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}
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}
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main() {
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GenericTest.testMain();
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}
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