| // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // Test that F-bounded quantification works for generic methods, and that types |
| // that are passed to generic methods in dynamic calls are checked for being |
| // recursively defined. An exception should be thrown if the type doesn't meet |
| // the expectation. |
| |
| library generic_methods_recursive_bound_error_test; |
| |
| import "test_base.dart"; |
| |
| abstract class I<T> { |
| bool fun(T x); |
| } |
| |
| void foo<T extends I<T>>(List<T> a) { |
| if (a.length > 1) { |
| a[0].fun(a[1]); |
| } |
| } |
| |
| class C implements I<C> { |
| bool fun(C c) => true; |
| } |
| |
| main() { |
| dynamic bar = foo; |
| List<int> list = <int>[4, 2]; |
| // The type int does not extend I<int>. |
| expectThrows(() => bar<int>(list), (e) => e is TypeError); |
| } |