// 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.

import 'package:compiler/src/util/testing.dart';

class Class1 {
  method1() {
    /*needsSignature*/
    num? local(num n) => null;
    return local;
  }

  method2() {
    /*needsSignature*/ num? local(int n) => null;
    return local;
  }

  method3() {
    /*needsSignature*/ Object? local(num n) => null;
    return local;
  }
}

/*spec.class: Class2:explicit=[Class2.T],needsArgs,test*/
/*prod.class: Class2:needsArgs*/
class Class2<T> {
  method4() {
    /*needsSignature*/
    num? local(T n) => null;
    return local;
  }
}

/*class: Class3:needsArgs*/
class Class3<T> {
  method5() {
    /*needsSignature*/
    T? local(num n) => null;
    return local;
  }
}

/*spec.class: Class4:explicit=[Class4.T],needsArgs,test*/
/*prod.class: Class4:needsArgs*/
class Class4<T> {
  method6() {
    /*needsSignature*/ num? local(num n, T t) => null;
    return local;
  }
}

@pragma('dart2js:noInline')
test(o) => o is num? Function(num);

main() {
  makeLive(test(new Class1().method1()));
  makeLive(test(new Class1().method2()));
  makeLive(test(new Class1().method3()));
  makeLive(test(new Class2<num>().method4()));
  makeLive(test(new Class3<num>().method5()));
  makeLive(test(new Class4<num>().method6()));
}