| /* |
| * Copyright (c) 2018, 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 We say that a type T0 is a subtype of a type T1 (written T0 <: T1) |
| * when: |
| * Left Type Variable Bound: T0 is a type variable X0 with bound B0 |
| * and B0 <: T1 |
| * @description Check that if T0 is a type variable X0 with bound B0 and |
| * B0 is not a subtype of T1 then T0 is not a subtype of a type T1. |
| * @author ngl@unipro.ru |
| */ |
| /** |
| * @description Check that if type T0 not a subtype of a type T1, then instance |
| * of T0 cannot be be used as a return value of type T1 |
| * @author sgrekhov@unipro.ru |
| */ |
| /* |
| * This test is generated from left_type_variable_bound_fail_A01.dart and |
| * return_value_fail_x01.dart. |
| * Don't modify it. If you want to change this file, change one of the files |
| * above and then run generator.dart to regenerate the tests. |
| */ |
| |
| |
| import '../../utils/common.dart'; |
| import '../../../../Utils/expect.dart'; |
| // SharedOptions=--enable-experiment=non-nullable |
| class T1 { |
| const T1(); |
| } |
| class B0 {} |
| class X0 extends B0 {} |
| |
| X0 t0Instance = new X0(); |
| T1 t1Instance = new T1(); |
| |
| const t1Default = const T1(); |
| |
| |
| |
| |
| T1 returnValueFunc() => forgetType(t0Instance); |
| |
| class ReturnValueTest { |
| static T1 staticTestMethod() => forgetType(t0Instance); |
| |
| T1 testMethod() => forgetType(t0Instance); |
| |
| T1 get testGetter => forgetType(t0Instance); |
| } |
| |
| class ReturnValueGen<X> { |
| X testMethod() => forgetType(t0Instance); |
| X get testGetter => forgetType(t0Instance); |
| } |
| |
| main() { |
| T1 returnValueLocalFunc() => forgetType(t0Instance); |
| |
| Expect.throws(() {returnValueFunc();}, (e) => e is TypeError); |
| Expect.throws(() {returnValueLocalFunc();}, (e) => e is TypeError); |
| Expect.throws(() {ReturnValueTest.staticTestMethod();}, (e) => e is TypeError); |
| |
| Expect.throws(() {new ReturnValueTest().testMethod();}, (e) => e is TypeError); |
| Expect.throws(() {new ReturnValueTest().testGetter;}, (e) => e is TypeError); |
| |
| // Test type parameters |
| |
| //# <-- NotGenericFunctionType |
| Expect.throws(() {new ReturnValueGen<T1>().testMethod();}, (e) => e is TypeError); |
| Expect.throws(() {new ReturnValueGen<T1>().testGetter;}, (e) => e is TypeError); |
| //# --> |
| } |