// 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.

/*@testedFeatures=inference*/
library test;

f() {
  var /*@ type=int* */ a = 0;
  var /*@ type=dynamic */ b = null;
  var /*@ type=dynamic */ c = throw 'foo';
  var /*@ type=() ->* int* */ d = /*@ returnType=int* */ () => 0;
  var /*@ type=() ->* Null */ e = /*@ returnType=Null */ () => null;
  var /*@ type=() ->* <BottomType> */ f = /*@ returnType=<BottomType> */ () =>
      throw 'foo';
  var /*@ type=() ->* int* */ g = /*@ returnType=int* */ () {
    return 0;
  };
  var /*@ type=() ->* Null */ h = /*@ returnType=Null */ () {
    return null;
  };
  var /*@ type=() ->* <BottomType> */ i = /*@ returnType=<BottomType> */ () {
    return (throw 'foo');
  };
}

main() {}
