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sdk/tests/language_2/constructor/default_factory2_test.dart
T
Robert Nystrom fc1b1ecc71 Move files under language_2 into subdirectories.
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
2019-12-11 19:18:00 +00:00

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738 B
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.
// Check type bounds when invoking a redirecting factory method
abstract class Foo {}
abstract class IA<T> {
factory IA() = A<T>;
// ^
// [cfe] The type 'T' doesn't extend 'Foo'.
// ^
// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
}
class A<T extends Foo> implements IA<T> {
factory A() {}
}
main() {
var result = new IA<String>();
// ^
// [cfe] Type argument 'String' doesn't conform to the bound 'Foo' of the type variable 'T' on 'A'.
}