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Tests for mixin class legacy interactions.
Change-Id: I2d2c3353f77b96d656bc81dc5f59bd7021ed2861 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/287665 Reviewed-by: Lasse Nielsen <lrn@google.com> Commit-Queue: Leaf Petersen <leafp@google.com> Reviewed-by: Kallen Tu <kallentu@google.com>
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// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart=2.19
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// SharedOptions=--enable-experiment=class-modifiers
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// Test the behavior of mixing in classes defined in a 3.0 library (both SDK
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// and non SDK) when the mixin happens in a pre 3.0 library.
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import 'dart:collection';
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import 'mixin_class_lib.dart';
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/// Test mixing in things from the SDK core libraries.
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/// Test that it is not an error to mix in a class (which is not marked as a
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/// mixin class) from the core libraries if it was valid to do so pre 3.0.
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class A with Comparable<int> {
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int compareTo(int x) => 0;
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}
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/// Test that it is not an error to mix in a mixin from the core libraries even
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/// if it has a generative constructor.
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abstract class B with Iterable<int> {}
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/// Test that it continues to be an error to mix in a class (which is not marked
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/// as a mixin class) from the core libraries if it was not valid to do so pre
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/// 3.0.
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class C with Error {}
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// ^
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// [cfe] Can't use 'Error' as a mixin because it has constructors.
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// ^^^^^
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// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
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/// Test mixing in things from the non-SDK libraries.
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/// Test that it is an error to mix in a class (which is not marked as a mixin
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/// class) from a 3.0 non core library.
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class D with NotAMixinClass {}
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// ^^^^^^^^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.CLASS_USED_AS_MIXIN
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// [cfe] unspecified
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/// Test that it is not an error to mix in a mixin class from a 3.0 non core
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/// library.
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class E with Class {}
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void main() {}
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// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// SharedOptions=--enable-experiment=class-modifiers
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// Test the behavior of mixing in classes defined in a pre 3.0 library
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// when the mixin happens in a 3.0 library.
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import 'mixin_class_legacy_lib.dart' as legacy;
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/// Test mixing in things from the core libraries.
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/// Test that it is an error to mix in a class (which is not marked as a
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/// mixin class) from the core libraries in 3.0.
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class A with Comparable<int> {
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// ^^^^^^^^^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.CLASS_USED_AS_MIXIN
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// [cfe] The class 'Comparable' can't be used as a mixin because it isn't a mixin class nor a mixin.
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int compareTo(int x) => 0;
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}
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/// Test mixing in things from a 3.0 library exported through a pre 3.0 library.
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/// Test that it is an error to mix in a class (which is not marked as a mixin
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/// class) from a 3.0 non core library exported through a pre 3.0 library
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class B with legacy.NotAMixinClass {}
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// ^^^^^^^^^^^^^^^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.CLASS_USED_AS_MIXIN
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// [cfe] The class 'NotAMixinClass' can't be used as a mixin because it isn't a mixin class nor a mixin.
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/// Test that it is not an error to mix in a mixin class from a 3.0 non core
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/// library exported through a pre 3.0 library.
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class C with legacy.Class {}
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/// Test mixing in things from a pre 3.0 library.
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/// Test that it is not an error to mix in a class from a 3.0 non core library,
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/// when it would have been valid to do so in a pre 3.0 library.
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class D with legacy.LegacyNotAMixinClass {}
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/// Test that it is an error to mix in a class from a 3.0 non core library,
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/// when it would not have been valid to do so in a pre 3.0 library.
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class E with legacy.LegacyNotAMixinClassWithConstructor {}
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// ^
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// [cfe] Can't use 'LegacyNotAMixinClassWithConstructor' as a mixin because it has constructors.
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// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
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main() {}
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// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart=2.19
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// Provide classes from a pre 3.0 library for use in tests of behaviors around
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// mixin classes crossing language versions.
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export 'mixin_class_lib.dart' show NotAMixinClass, Class;
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class LegacyNotAMixinClass {}
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class LegacyNotAMixinClassWithConstructor {
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LegacyNotAMixinClassWithConstructor();
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}
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