| /* |
| * Copyright (c) 2011, 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 A function type (T1,...Tk,[Tk+1,...,Tn+m]) -> T is a subtype of |
| * the function type (S1,...,Sk+j,[Sk+j+1,...,Sn]) -> S, if all of the following |
| * conditions are met: |
| * 1. Either |
| * • S is void, or |
| * • T <=> S. |
| * 2. ∀i ∈ 1..n, Ti ⇐⇒ Si. |
| * @description Checks that function type t1 is not a subtype of function type |
| * t2 even if just one of its formal parameters has a type that is not mutually |
| * assignable with the type of the corresponding formal parameter of t2. |
| * @author iefremov |
| * @reviewer rodionov |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| abstract class B {} |
| |
| typedef B func(Object o); |
| typedef B t1(int i, B b, Map<int, num> m, var x); |
| |
| B f1(double i, B b, Map<int, num> m, var x) {} |
| // ^^^ double <=/=> int |
| B f2(int i, func b, Map<int, num> m, var x) {} |
| // ^^^ func <=/=> B |
| B f3(int i, B b, Map<int, func> m, var x) {} |
| // ^^^ func <=/=> num |
| |
| main() { |
| Expect.isFalse(f1 is t1); |
| Expect.isFalse(f2 is t1); |
| Expect.isFalse(f3 is t1); |
| } |
