/*
 *  Copyright (c) 2018-present, Facebook, Inc.
 *
 *  This source code is licensed under the MIT license found in the LICENSE
 *  file in the root directory of this source tree.
 *
 */
#import <Foundation/Foundation.h>

/*
 A hash function is needed in order to use NSObject classes
 as keys in C++ STL
 */
class SKObjectHash {
public:
  size_t operator()(const NSObject *x) const {
    return (size_t)[x hash];
  }
};
