| /* |
| * Copyright (c) 2019, 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. |
| */ |
| /** |
| * @assertion Any expression of the form e1(args) or e1<types>(args) where e1 |
| * does not denote a method, and where the static type of e1 is not a function |
| * type, an interface type declaring a call method, or dynamic, will currently |
| * be a compile-time error. If the static type of e1 is an interface type |
| * declaring a call getter, then this stays a compile-time error. Otherwise we |
| * check for extensions applying to the static type of e1 and declaring a call |
| * member. If one such most specific extension exists, and it declares a call |
| * extension method, then the expression is equivalent to e1.call(args) or |
| * e1.call<typeS>(args). Otherwise it is still a compile-time error. |
| * |
| * @description Check that extension with the 'call' method is applicable, then |
| * it is called. Test type arguments |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=extension-methods |
| import "../../Utils/expect.dart"; |
| |
| class C<T extends num> { |
| T value; |
| } |
| |
| extension IntExtWithCall<T extends num> on C<T> { |
| Iterable<T> call(int to) => |
| Iterable<T>.generate(to - this.value + 1, (i) => i + this.value); |
| } |
| |
| main() { |
| C<int> c = new C<int>(); |
| c.value = 1; |
| Expect.iterableEquals([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], c(10)); |
| c.value = 2; |
| Expect.iterableEquals([2, 3, 4, 5], c(5)); |
| } |