| /* |
| * 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 The function type (T1, ... Tn, {Tx1 x1, ..., Txk xk}) -> T is a |
| * subtype of the function type (S1, ..., Sn, {Sy1 y1, ..., Sym ym }) -> S, if |
| * all of the following conditions are met: |
| * 1. Either |
| * • S is void, Or |
| * • T ⇐⇒ S. |
| * 2. ∀i ∈ 1..n, Ti ⇐⇒ Si . |
| * 3. k ≥ m and yi ∈ {x1 , ..., xk }, i ∈ 1..m. |
| * 4. For all yi ∈ {y1 , ..., ym }, yi = xj ⇒ Tj ⇐⇒ Si. |
| * @description Checks that function type t1 is not a subtype of function type |
| * t2 even if just one of t1's named optional parameters has a type that is not |
| * mutually assignable with the type of t2's corresponding named optional |
| * parameter. |
| * @author rodionov |
| * @reviewer kaigorodov |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| class B {} |
| |
| typedef B func(Object o); |
| typedef B t1(int i, B b, Map<int, num> m, var x, {var ox, B ob, List<num> ol, bool obool}); |
| |
| B f1(int i, B b, Map<int, num> m, var x, {var ox, func ob, List<num> ol, bool obool}) {} |
| // ^^^ func <=/=> B |
| B f2(int i, B b, Map<int, num> m, var x, {var ox, B ob, List<B> ol, bool obool}) {} |
| // ^^^ B <=/=> num |
| B f3(num i, B b, Map<int, num> m, var x, {var ox, B ob, List<num> ol, int obool}) {} |
| // ^^^ int <=/=> bool |
| |
| main() { |
| Expect.isFalse(f1 is t1); |
| Expect.isFalse(f2 is t1); |
| Expect.isFalse(f3 is t1); |
| } |
