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// Copyright (c) 2017, 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.
// @dart = 2.9
// Test that generic methods with named parameters are of correct type.
library generic_methods_named_parameters_test;
import "package:expect/expect.dart";
typedef FunObjObj = Object Function<T>(Object, {Object y});
typedef FunTypObj = Object Function<T>(T, {Object y});
typedef FunObjTyp = Object Function<T>(Object, {T y});
typedef FunTypTyp = Object Function<T>(T, {T y});
Object funObjObj<T>(Object x, {Object y}) => x;
Object funTypObj<T>(T x, {Object y}) => y;
Object funObjTyp<T>(Object x, {T y}) => x;
Object funTypTyp<T>(T x, {T y}) => null;
main() {
Expect.isTrue(funObjObj is FunObjObj);
Expect.isTrue(funObjObj is FunTypObj);
Expect.isTrue(funObjObj is FunObjTyp);
Expect.isTrue(funObjObj is FunTypTyp);
Expect.isTrue(funTypObj is! FunObjObj);
Expect.isTrue(funTypObj is FunTypObj);
Expect.isTrue(funTypObj is! FunObjTyp);
Expect.isTrue(funTypObj is FunTypTyp);
Expect.isTrue(funObjTyp is! FunObjObj);
Expect.isTrue(funObjTyp is! FunTypObj);
Expect.isTrue(funObjTyp is FunObjTyp);
Expect.isTrue(funObjTyp is FunTypTyp);
Expect.isTrue(funTypTyp is! FunObjObj);
Expect.isTrue(funTypTyp is! FunTypObj);
Expect.isTrue(funTypTyp is! FunObjTyp);
Expect.isTrue(funTypTyp is FunTypTyp);