blob: 7d18fe30ba352ca69b504450a8c665cbd8bf9dd3 [file] [log] [blame]
// Copyright (c) 2018, 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 = 2.7
// dart2jsOptions=--strong
import 'package:expect/expect.dart';
class Class1 {
num method1<T>(num n) => null;
num method2<T>(int n) => null;
int method3<T>(num n) => null;
class Class2 {
num method4<T>(T n) => null;
class Class3 {
T method5<T>(num n) => null;
class Class4 {
num method6<T>(num n, T t) => null;
num method7<T>(T n) => null;
T method8<T>(num n) => null;
num method9<T>(num n, T t) => null;
test(o) => o is num Function(num);
forceInstantiation(num Function(num) f) => f;
main() {
Expect.isFalse(test(new Class1().method1));
Expect.isFalse(test(new Class1().method2));
Expect.isFalse(test(new Class1().method3));
Expect.isTrue(test(forceInstantiation(new Class2().method4)));
Expect.isTrue(test(forceInstantiation(new Class3().method5)));
Expect.isFalse(test(new Class4().method6));