Leaf Petersen
a6faf8f2f9
Closes https://github.com/dart-lang/sdk/issues/22 Change-Id: I662dd17fda0ff62a871314896fbf1dbe220f41de Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166790 Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
29 lines
899 B
Dart
29 lines
899 B
Dart
// Copyright (c) 2020, 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.
|
|
|
|
// This library establishes an opted in class hierarchy which has a single
|
|
// non-generic top element, with a generic element below it, and a null safety
|
|
// specific instantantiation of the generic below that. This is used to test
|
|
// how upper bounds behave when some super-interfaces come from opted in
|
|
// libraries and some from legacy libraries.
|
|
|
|
class Root {
|
|
Object? rootMethod() => 3;
|
|
}
|
|
|
|
class Generic<T> extends Root {
|
|
T genericMethod() => throw "Unreachable";
|
|
}
|
|
|
|
class NonNullable extends Generic<int> {
|
|
int nonNullableMethod() => 3;
|
|
}
|
|
|
|
class Nullable extends Generic<int?> {
|
|
int nullableMethod() => 3;
|
|
}
|
|
|
|
var nonNullable = NonNullable();
|
|
var nullable = Nullable();
|