| /* |
| * 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 this statement is true for quite complex function |
| * types: non-dynamic return type and a bunch of required and named optional |
| * parameters. |
| * @author rodionov |
| * @reviewer kaigorodov |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| class A {} |
| class A1 {} |
| class A2 {} |
| class B implements A, A1, A2 {} |
| class C implements B {} |
| class D implements C {} |
| |
| 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, {extraParam, bool obool, var ox, D ob, List<num> ol}) {} |
| D f2(int i, D b, Map<int, int> m, func x, {func ox, D ob, List<int> ol, bool obool}) {} |
| C f3(num i, A b, Map<Object, Object> m, var x, {var ox, extraParam, A2 ob, List ol, Object obool}) {} |
| C f4(num i, A b, Map<Object, Object> m, var x, {var ox, A2 ob, List ol, bool obool, A xx, B yy}) {} |
| A f5(num i, A b, Map<Object, Object> m, var x, {ox, A2 ob, extraParam, List ol, obool}) {} |
| |
| main() { |
| Expect.isTrue(f1 is t1); |
| Expect.isTrue(f2 is t1); |
| Expect.isTrue(f3 is t1); |
| Expect.isTrue(f4 is t1); |
| Expect.isTrue(f5 is t1); |
| } |