blob: cef8cdfb85119b3a7a49403de13ac62179e8da76 [file] [log] [blame]
// Copyright (c) 2021, 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.
/// @assertion For an expression of the form e<typeArgs>, which is not followed
/// by an argument list (that would turn it into a generic function invocation),
/// the meaning of e<typeArgs> depends on the expression e:
/// ...
/// - If e has a static type which is a generic callable object type (a
/// non-function type with a generic method named call), then e<typeArgs> is
/// equivalent to the instantiated method-tear off<typeArgs>.
/// @description Checks that if e denotes a generic instance method then then
/// e<typeArgs> performs an explicitly instantiated method tear-off
/// @author
// SharedOptions=--enable-experiment=constructor-tearoffs
import "../../Utils/expect.dart";
class C {}
extension on C {
T call<T>(T t) => t;
main() {
var c = C();
var c1 = c<int>;
Expect.isFalse(c1 is Type);
Expect.isTrue(c1 is int Function(int));
Expect.runtimeIsType<void Function(int)>(c1);
var res = c1 ==<int>; // Any result is accepted, it may be equal and not equal