| // Copyright (c) 2013, 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. |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| class F { |
| final int value; |
| F(this.value); |
| call() => value; |
| noSuchMethod(Invocation i) { |
| if (i.memberName == #call && i.isMethod) { |
| return i.positionalArguments[0]; |
| } |
| return super.noSuchMethod(i); |
| } |
| } |
| |
| main() { |
| F f = new F(42); |
| // Tears off f.call, fails with nSM (wrong number of arguments). |
| Expect.throwsNoSuchMethodError(() => Function.apply(f, ['a', 'b', 'c', 'd'])); |
| |
| dynamic d = f; |
| var result = d('a', 'b', 'c', 'd'); // calls F.noSuchMethod |
| Expect.equals('a', result); |
| |
| // Tears off f.call, call succeeds |
| Expect.equals(42, Function.apply(f, [])); |
| } |