| // Copyright (c) 2019, 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 If element is a forElement with element e1 then: |
| /// |
| /// Inference for the iterated expression and the controlling variable is done as |
| /// for the corresponding for or await for statement. |
| /// |
| /// If the inferred set element type of e1 is S then the inferred set element |
| /// type of element is S. |
| /// |
| /// @description Checks that if element is a forElement with element e1 then if |
| /// the inferred set element type of e1 is S then the inferred set element type |
| /// of element is S. |
| /// @author sgrekhov@unipro.ru |
| |
| import "../../Utils/expect.dart"; |
| |
| class A {} |
| class B extends A {} |
| class C extends B {} |
| |
| main() { |
| var set1 = { |
| for (var i = 1; i < 5; i++) |
| if (i.isEven) 3 else 3.14 |
| }; |
| Expect.isTrue(set1 is Set<num>); |
| Expect.isFalse(set1 is Set<int>); |
| Expect.isFalse(set1 is Set<double>); |
| |
| var set2 = { |
| "", |
| for (var i = 1; i < 5; i++) |
| if ( i.isEven) 3 else 3.14 |
| }; |
| Expect.isTrue(set2 is Set<Object>); |
| Expect.isFalse(set2 is Set<int>); |
| Expect.isFalse(set2 is Set<double>); |
| |
| var set3 = { |
| new C(), |
| for (var i = 1; i < 5; i++) new B() |
| }; |
| Expect.isTrue(set3 is Set<B>); |
| Expect.isFalse(set3 is Set<C>); |
| } |