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sdk/pkg/dev_compiler/test/codegen/language/generic_instanceof4_test.dart
T
2015-09-16 16:00:46 -07:00

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Dart

// Copyright (c) 2014, 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 instanceof works correctly with type variables.
import "package:expect/expect.dart";
class A<T> {
foo(x) {
// Don't inline.
if (new DateTime.now().millisecondsSinceEpoch == 42) return foo(x);
return x is T;
}
}
class BB {}
class B<T> implements BB {
foo() {
// Don't inline.
if (new DateTime.now().millisecondsSinceEpoch == 42) return foo();
return new A<T>().foo(new B());
}
}
main() {
Expect.isTrue(new B<BB>().foo());
}