dart-sdk/tests/language/deferred/inheritance_constraints_test.dart
Johnni Winther f8ac221972 [cfe] Report errors on deferred types in extends/with/implements clauses
Change-Id: I5a66f072f5c29cbe720bf59cf8d3c0fd28b52bd6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/339121
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2023-12-05 13:21:12 +00:00

48 lines
1.3 KiB
Dart

// Copyright (c) 2014, 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.
// TODO(https://github.com/dart-lang/sdk/issues/51557): Decide if the mixins
// being applied in this test should be "mixin", "mixin class" or the test
// should be left at 2.19.
// @dart=2.19
import "package:expect/expect.dart";
import "inheritance_constraints_lib.dart" deferred as lib;
class Foo {}
class Foo2 extends D {}
class A extends lib.Foo {}
// ^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DEFERRED_CLASS
// [cfe] Classes can't extend deferred classes.
class B implements lib.Foo {}
// ^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DEFERRED_CLASS
// [cfe] Classes and mixins can't implement deferred classes.
class C1 {}
class C = C1 with lib.Foo;
// ^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DEFERRED_CLASS
// [cfe] Classes can't mix in deferred mixins.
class D {
D();
factory D.factory() = lib.Foo2;
// ^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
// [cfe] The constructor function type 'Foo2 Function()' isn't a subtype of 'D Function()'.
}
void main() {
new A();
new B();
new C();
new D.factory();
}