| // Copyright (c) 2018, 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. |
| |
| dynamic _defaultCallback<T>(T t) => t; |
| |
| void bar<T>([dynamic Function(T) f = _defaultCallback]) {} //# 01: compile-time error |
| |
| class C<T> { |
| // Should be statically rejected |
| foo([dynamic Function(T) f = _defaultCallback]) {} //# 02: compile-time error |
| |
| // Should be statically rejected |
| const C({this.callback = _defaultCallback}); //# 03: compile-time error |
| |
| final dynamic Function(T) callback; //# 03: continued |
| } |
| |
| void main() { |
| bar<int>(); //# 01: continued |
| print(new C<int>().foo()); //# 02: continued |
| print(new C<int>().callback); //# 03: continued |
| } |
