| // 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 an ifElement with one element, p1, and no "else" |
| /// element: |
| /// |
| /// The condition is inferred with a context type of bool. |
| /// |
| /// If the inferred set element type of p1 is S then the inferred set element |
| /// type of element is S. |
| /// |
| /// @description Checks that if the inferred set element type of p1 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 i = 1; |
| var set1 = { |
| if (i > 0) "", |
| }; |
| Expect.isTrue(set1 is Set<String>); |
| Expect.runtimeIsType<Set<String>>(set1); |
| |
| var set2 = { |
| "", |
| if (i < 0) 1, |
| }; |
| Expect.isTrue(set2 is Set<Object>); |
| Expect.isFalse(set2 is Set<String>); |
| Expect.isFalse(set2 is Set<num>); |
| Expect.runtimeIsType<Set<Object>>(set2); |
| Expect.runtimeIsNotType<Set<String>>(set2); |
| Expect.runtimeIsNotType<Set<num>>(set2); |
| |
| var set3 = { |
| new C(), |
| if (i > 0) new B(), |
| if (i < 0) new A() |
| }; |
| Expect.isTrue(set3 is Set<A>); |
| Expect.isFalse(set3 is Set<B>); |
| Expect.runtimeIsType<Set<A>>(set3); |
| Expect.runtimeIsNotType<Set<B>>(set3); |
| } |