| /* |
| * Copyright (c) 2016, 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 Let S be the runtime type of o. |
| * • If the body of f is marked async it is a compile type error if o is not |
| * null and Future<S> is not a subtype of the actual return type of f. |
| * • Otherwise, it is a compile type error if o is not null and the runtime |
| * type of o is not a subtype of the actual return type of f. |
| * |
| * @description Checks that it's not an error in any mode if S is subtype of |
| * the actual return type of f. |
| * |
| * @author a.semenov@unipro.tu |
| */ |
| |
| var r = 3.14; |
| |
| num foo() { return r; } |
| |
| main() { |
| foo(); |
| } |