Dmitry Stefantsov
cf8887bd7e
The update is specified in the following: https://github.com/dart-lang/language/pull/1133 Change-Id: I2850b1acf7c94b8174c21cf899c9b926a03d9cc8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/175726 Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
67 lines
2.3 KiB
Dart
67 lines
2.3 KiB
Dart
// Copyright (c) 2020, 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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class A<T extends num> {}
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typedef FArgument<X extends num> = Function(X);
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typedef FReturn<X extends num> = X Function();
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typedef FBoth<X extends num> = X Function(X);
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typedef FNowhere<X extends num> = Function();
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foo() {
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A<Object> aObject; // Error.
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A<num?> aNumNullable; // Error.
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A<int?> aIntNullable; // Error.
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A<Null> aNull; // Error.
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FArgument<Object> fArgumentObject; // Error.
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FArgument<num?> fArgumentNumNullable; // Error.
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FArgument<int?> fArgumentIntNullable; // Error.
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FArgument<Null> fArgumentNull; // Error.
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FReturn<Object> fReturnObject; // Error.
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FReturn<num?> fReturnNumNullable; // Error.
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FReturn<int?> fReturnIntNullable; // Error.
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FReturn<Null> fReturnNull; // Error.
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FBoth<Object> fBothObject; // Error.
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FBoth<num?> fBothNumNullable; // Error.
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FBoth<int?> fBothIntNullable; // Error.
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FBoth<Null> fBothNull; // Error.
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FNowhere<Object> fNowhereObject; // Error.
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FNowhere<num?> fNowhereNumNullable; // Error.
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FNowhere<int?> fNowhereIntNullable; // Error.
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FNowhere<Null> fNowhereNull; // Error.
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FArgument<Object?> fArgumentObjectNullable; // Error.
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FArgument<dynamic> fArgumentDynamic; // Error.
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FArgument<void> fArgumentVoid; // Error.
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A<Object?> aObjectNullable; // Ok.
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A<dynamic> aDynamic; // Ok.
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A<void> aVoid; // Ok.
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A<num> aNum; // Ok.
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A<int> aInt; // Ok.
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A<Never> aNever; // Ok.
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FArgument<num> fArgumentNum; // Ok.
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FArgument<int> fArgumentInt; // Ok.
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FArgument<Never> fArgumentNever; // Ok.
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FReturn<Object?> fReturnObjectNullable; // Ok.
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FReturn<dynamic> fReturnDynamic; // Ok.
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FReturn<void> fReturnVoid; // Ok.
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FReturn<num> fReturnNum; // Ok.
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FReturn<int> fReturnInt; // Ok.
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FReturn<Never> fReturnNever; // Ok.
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FBoth<Object?> fBothObjectNullable; // Ok.
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FBoth<dynamic> fBothDynamic; // Ok.
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FBoth<void> fBothVoid; // Ok.
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FBoth<num> fBothNum; // Ok.
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FBoth<int> fBothInt; // Ok.
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FBoth<Never> fBothNever; // Ok.
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FNowhere<Object?> fNowhereObjectNullable; // Ok.
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FNowhere<dynamic> fNowhereDynamic; // Ok.
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FNowhere<void> fNowhereVoid; // Ok.
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FNowhere<num> fNowhereNum; // Ok.
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FNowhere<int> fNowhereInt; // Ok.
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FNowhere<Never> fNowhereNever; // Ok.
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}
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main() {}
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