dart-sdk/tests/language/type_variable/typedef_test.dart
Robert Nystrom 7e756d6f86 Migrate language_2/type_variable to NNBD.
Change-Id: Iee96b1e254f17ee0b1b7b309cc807bf874a1491e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151982
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
2020-06-22 21:20:26 +00:00

31 lines
765 B
Dart

// Copyright (c) 2013, 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.
// Test that rti dependency registration takes type variables within typedefs
// into account.
import 'package:expect/expect.dart';
typedef Foo<T>(T t);
class A<T> {
m() => new B<Foo<T>>();
}
class B<T> {
m(o) => o is T;
}
foo(int i) {}
bar(String s) {}
void main() {
Expect.isTrue(new A<int>().m().m(foo));
Expect.isFalse(new A<int>().m().m(bar));
Expect.isFalse(new A<String>().m().m(foo));
Expect.isTrue(new A<String>().m().m(bar));
Expect.isFalse(new A<double>().m().m(foo));
Expect.isFalse(new A<double>().m().m(bar));
}