hphp/hack/test/typecheck/extend_with_no_return2.php

   1 <?hh // partial
   2 /**
   3  * Copyright (c) 2014, Facebook, Inc.
   4  * All rights reserved.
   5  *
   6  * This source code is licensed under the MIT license found in the
   7  * LICENSE file in the "hack" directory of this source tree.
   8  *
   9  *
  10  */
  11
  12 interface A {
  13   public function foo(): void;
  14 }
  15
  16 interface B extends A {
  17   public function foo();
  18 }