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c10e96ba2f
Change-Id: I9daeebde586a00169bdaf069c7dc2fdc5d3d97f2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/147160 Commit-Queue: Lasse R.H. Nielsen <lrn@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com>
42 lines
786 B
Dart
42 lines
786 B
Dart
// Copyright (c) 2017, 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 for type checks involving callbacks and the type void.
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import 'package:expect/expect.dart';
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class A<T> {
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T x;
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A(this.x);
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foo(T x) {}
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T bar(T f()) {
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T tmp = f();
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return tmp;
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}
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gee(T f()) {
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x = bar(f);
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}
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Object? xAsObject() => x;
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}
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void voidFun() => 499;
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int intFun() => 42;
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main() {
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A<void> a = new A<void>(null);
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a.foo(a.x);
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a.bar(voidFun);
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Expect.equals(null, a.xAsObject());
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a.x = a.bar(voidFun);
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a.gee(voidFun);
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Expect.equals(499, a.xAsObject());
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a.gee(intFun);
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Expect.equals(42, a.xAsObject());
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}
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