dart-sdk/tests/language/type_variable_typedef_test.dart
Bob Nystrom 14011f47e3 Resurrect deleted language tests.
They're back from the grave, and ready to party!

Change-Id: I088134a9be7ecabf1fbf751c015a656a15cabff9
Reviewed-on: https://dart-review.googlesource.com/12821
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: William Hesse <whesse@google.com>
2017-10-11 17:47:11 +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));
}