pkg/front_end/testcases/type_of_null.dart

// Copyright (c) 2019, 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.

/*@testedFeatures=inference*/
T map<T>(T Function() f1, T Function() f2) {}

id<T>(T t) => t;

Null foo() => null;

main() {
  /*@typeArgs=Null*/map(/*@returnType=Null*/() {}, /*@returnType=<BottomType>*/() => throw "hello");
  /*@typeArgs=Null*/map(/*@returnType=<BottomType>*/() => throw "hello", /*@returnType=Null*/() {});
  Null Function() f = /*@returnType=Null*/() {};
  /*@typeArgs=Null*/map(foo, /*@returnType=<BottomType>*/() => throw "hello");
  /*@typeArgs=Null*/map(/*@returnType=<BottomType>*/() => throw "hello", foo);
  /*@typeArgs=Null*/map(/*@returnType=Null*/() {
    return null;
  }, /*@returnType=<BottomType>*/() => throw "hello");

  /*@typeArgs=Null*/map(/*@returnType=<BottomType>*/() => throw "hello", /*@returnType=Null*/() {
    return null;
  });
  /*@typeArgs=() -> Null*/id(/*@returnType=Null*/() {});
}