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05ca544f15
Change-Id: Iaa0ca2b4f2d1b15f79ddca37834d3ed2497bc068 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149242 Commit-Queue: Joshua Litt <joshualitt@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
37 lines
810 B
Dart
37 lines
810 B
Dart
// Copyright (c) 2019, 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 = 2.7
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import 'package:expect/expect.dart';
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abstract class Foo<A, B> {
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bool pip(o);
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}
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class Bar<X, Y> implements Foo<X, Y> {
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bool pip(o) => o is Y;
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}
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class Baz<U, V> implements Foo<U, V> {
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bool pip(o) => true;
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}
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void main() {
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Expect.listEquals([], test(1));
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Expect.listEquals([true, false], test(Bar<String, int>()));
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Expect.listEquals([true, true], test(Baz<String, int>()));
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}
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@pragma('dart2js:noInline')
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List<bool> test(dynamic p) {
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List<bool> result = [];
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if (p is Foo) {
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for (var o in [1, 'x']) {
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result.add(p.pip(o));
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}
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}
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return result;
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}
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