Robert Nystrom
b4d17e9c07
Change-Id: I3ec18bb7e7cfb087a58d744d357bf004c0438ba9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/147813 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Erik Ernst <eernst@google.com>
36 lines
906 B
Dart
36 lines
906 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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// Test that F-bounded quantification works for generic methods, and that types
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// that are passed to generic methods in dynamic calls are checked for being
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// recursively defined.
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library generic_methods_recursive_bound_test;
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import "package:expect/expect.dart";
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abstract class I<T> {
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bool fun(T x);
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}
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void foo<T extends I<T>>(List<T> a) {
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if (a.length > 1) {
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a[0].fun(a[1]);
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}
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}
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class C implements I<C> {
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bool fun(C c) => true;
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}
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main() {
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foo<C>(<C>[new C(), new C()]); //# 01: ok
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dynamic bar = foo;
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List<int> list2 = <int>[4, 2];
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// The type int does not extend I<int>.
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foo<int>(list2); //# 02: compile-time error
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bar<int>(list2); //# 03: runtime error
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}
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