blob: 096b8b3d821daaf107c00e836131b4348c4777b3 [file] [log] [blame]
/*
* 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 We say that a type T0 is a subtype of a type T1 (written T0 <: T1)
* when:
* Right Object: if T1 is Object then:
* - if T0 is an unpromoted type variable with bound B then T0 <: T1 iff
* B <: Object
* - if T0 is a promoted type variable X & S then T0 <: T1 iff S <: Object
* - if T0 is FutureOr<S> for some S, then T0 <: T1 iff S <: Object.
* - if T0 is S* for any S, then T0 <: T1 iff S <: T1
* - if T0 is Null, dynamic, void, or S? for any S, then the subtyping does not
* hold (per above, the result of the subtyping query is false).
* - Otherwise T0 <: T1 is true.
* @description Check that if T0 is FutureOr<S> for some S but S is not subtype
* of Object then T0 is not subtype of T1
* @author sgrekhov@unipro.ru
*/
/**
* @description Check that if type T0 is not a subtype of a type T1, then
* instance of T0 cannot be be assigned to the mixin member of type T1
* @author sgrekhov@unipro.ru
*/
/*
* This test is generated from right_object_fail_A04.dart and
* class_member_fail_x03.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
import "dart:async";
class S {}
FutureOr<S?> t0Instance = new S();
Object t1Instance = new Object();
const t1Default = const Object();
class ClassMemberSuper1_t03 {
Object m = t1Default;
void set superSetter(Object val) {}
}
class ClassMember1_t03 extends Object with ClassMemberSuper1_t03 {
test1() {
m = forgetType(t0Instance);
}
test2() {
superSetter = forgetType(t0Instance);
}
}
class ClassMemberSuper2_t03<X> {
X m;
ClassMemberSuper2_t03(X x) : m = x {}
void set superSetter(X val) {}
}
class ClassMember2_t03<X> extends ClassMemberSuper2_t03<X> {
ClassMember2_t03(X x): super(x) {}
test1() {
m = forgetType(t0Instance);
}
test2() {
superSetter = forgetType(t0Instance);
}
}
main() {
Expect.throws(() {
new ClassMember1_t03().m = forgetType(t0Instance);
}, (e) => e is TypeError);
Expect.throws(() {
new ClassMember1_t03().superSetter = forgetType(t0Instance);
}, (e) => e is TypeError);
Expect.throws(() {
new ClassMember1_t03().test1();
}, (e) => e is TypeError);
Expect.throws(() {
new ClassMember1_t03().test2();
}, (e) => e is TypeError);
// Test type parameters
//# <-- NotGenericFunctionType
Expect.throws(() {
new ClassMember2_t03<Object>(t1Instance).m = forgetType(t0Instance);
}, (e) => e is TypeError);
Expect.throws(() {
new ClassMember2_t03<Object>(t1Instance).superSetter = forgetType(t0Instance);
}, (e) => e is TypeError);
Expect.throws(() {
new ClassMember2_t03<Object>(t1Instance).test1();
}, (e) => e is TypeError);
Expect.throws(() {
new ClassMember2_t03<Object>(t1Instance).test2();
}, (e) => e is TypeError);
//# -->
}