dart-sdk/tests/language/factory/factory3_test.dart
Konstantin Shcheglov d0998d6996 DevX. Issue 29106. Don't NON_ABSTRACT_CLASS_XYZ if the concrete extended class also has this problem.
Bug: https://github.com/dart-lang/sdk/issues/29106
Change-Id: Ie676295f104fcbb8458fbb27f3f01ed52e99fef9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/370662
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Sam Rawlins <srawlins@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>
2024-06-12 00:31:59 +00:00

72 lines
1.9 KiB
Dart

// Copyright (c) 2012, 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.
import "dart:collection";
// Test compile time error for factories with parameterized types.
abstract class A<T> {
A();
A.create();
}
abstract class B<T> extends A<T> {}
// Compile time error: should be AFactory<T> to match abstract class above
class AFactory extends B<int> {
factory A.create() {
// ^
// [analyzer] COMPILE_TIME_ERROR.INVALID_FACTORY_NAME_NOT_A_CLASS
// [cfe] The name of a constructor must match the name of the enclosing class.
throw UnimplementedError();
}
}
abstract class Link<T> extends IterableBase<T> {
factory Link(T head, [Link<T>? tail]) = LinkEntry<T>;
Link<T> prepend(T element);
}
abstract class EmptyLink<T> extends Link<T> {
const factory EmptyLink() = LinkTail<T>;
}
class AbstractLink<T> implements Link<T> {
// ^^^^^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
// [cfe] The non-abstract class 'AbstractLink' is missing implementations for these members:
const AbstractLink();
Link<T> prepend(T element) {
print("$element");
if (0 is T) {
throw "0 is not a T";
}
return new Link<T>(element, this);
}
}
class LinkTail<T> extends AbstractLink<T> implements EmptyLink<T> {
// ^^^^^^^^
// [cfe] The non-abstract class 'LinkTail' is missing implementations for these members:
const LinkTail();
}
class LinkEntry<T> extends AbstractLink<T> {
// ^^^^^^^^^
// [cfe] The non-abstract class 'LinkEntry' is missing implementations for these members:
LinkEntry(T head, [Link<T>? Tail]);
}
class Fisk {
Link<Fisk> nodes = const EmptyLink<Fisk>();
final int id;
Fisk(this.id);
toString() => id.toString();
}
main() {
var a = new AFactory.create();
new Fisk(0).nodes.prepend(new Fisk(1)).prepend(new Fisk(2));
}