| /* |
| * 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. For all i 1 <= i <= n, Ti <=> Si. |
| * 3. k >= m and yi belongs to {x1, ..., xk} for each i in 1..m. |
| * 4. For all y in {y1, ..., ym}, yi = xj => Tj <=> Si |
| * @description Checks that function type t1 is still a subtype of function type t2 if their named |
| * named optional parameters have identical names and mutually assignale types, regardless of the order |
| * they're declared in. |
| * @author rodionov |
| * @reviewer kaigorodov |
| */ |
| import "../../Utils/expect.dart"; |
| |
| typedef t1({int x, double d, String s}); |
| |
| main() { |
| Expect.isTrue(({int x, String s, double d}) {} is t1); |
| Expect.isTrue(({double d, int x, String s}) {} is t1); |
| Expect.isTrue(({double d, String s, int x}) {} is t1); |
| Expect.isTrue(({String s, double d, int x}) {} is t1); |
| Expect.isTrue(({String s, int x, double d}) {} is t1); |
| } |