IGListKit/Source/NSObject+IGListDiffable.h
FBShipIt cdc796746a Initial commit
fbshipit-source-id: c38b897b9e2b87c782e0e01b0145d9189dc7f9d8
2016-10-11 10:12:17 -04:00

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Objective-C

/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import <Foundation/Foundation.h>
#import <IGListKit/IGListDiffable.h>
/**
This category adds diffing comparisons similar to adding the object into an NSSet, where the object's isEqual: method
drives the uniqueness of the object.
For instance, an NSString's isEqual: will compare the value of the strings. So if you were to diff @"cat" and @"cat"
each object would have the same diff identifier.
However objects that don't implement a custom isEqual: (e.g. the NSObject base class), the diff will default to simple
pointer comparisons to establish uniqueness.
*/
@interface NSObject (IGListDiffable) <IGListDiffable>
@end