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30 lines
1.2 KiB
Objective-C
30 lines
1.2 KiB
Objective-C
//
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// NSArray+Diffing.h
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// AsyncDisplayKit
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//
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// Created by Levi McCallum on 1/29/16.
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// Copyright © 2016 Facebook. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@interface NSArray (Diffing)
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/**
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* @abstract Compares two arrays, providing the insertion and deletion indexes needed to transform into the target array.
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* @discussion This compares the equality of each object with `isEqual:`.
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* This diffing algorithm uses a bottom-up memoized longest common subsequence solution to identify differences.
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* It runs in O(mn) complexity.
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*/
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- (void)asdk_diffWithArray:(NSArray *)array insertions:(NSIndexSet **)insertions deletions:(NSIndexSet **)deletions;
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/**
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* @abstract Compares two arrays, providing the insertion and deletion indexes needed to transform into the target array.
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* @discussion The `compareBlock` is used to identify the equality of the objects within the arrays.
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* This diffing algorithm uses a bottom-up memoized longest common subsequence solution to identify differences.
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* It runs in O(mn) complexity.
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*/
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- (void)asdk_diffWithArray:(NSArray *)array insertions:(NSIndexSet **)insertions deletions:(NSIndexSet **)deletions compareBlock:(BOOL (^)(id lhs, id rhs))comparison;
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@end
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