mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-08 10:00:43 +00:00
e4c60650f2
Summary: Pull Request resolved: https://github.com/Instagram/IGListKit/pull/1377 This splits the diffing-only components from `IGListKit` out into a separate library, `IGListDiffKit`, allowing them to be used independently of the rest of `IGListKit`. We've found that the diffing components of the library are useful independently of the rest of the `UICollectionView` infrastructure, and separating the libraries allows apps to take advantage of those components without paying the full binary size cost of `IGListKit`. The diffing components are available as a subspec in Cocoapods, and as an independent framework in Carthage and direct Xcode project import (i.e. Git submodules). This is a breaking change, necessitating a major version bump, although it should have only minor impact for projects using the umbrella header `IGListKit.h`, as that header continues to import the diffing utilities. In particular, for a project using Cocoapods and importing `IGListKit.h`, there should be no code changes required. Reviewed By: calimarkus Differential Revision: D18114249 fbshipit-source-id: 363b5a427e32800bbc6e82f897230963b4167245
52 lines
1.2 KiB
Objective-C
52 lines
1.2 KiB
Objective-C
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import "IGListMoveIndex.h"
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@implementation IGListMoveIndex
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- (instancetype)initWithFrom:(NSInteger)from to:(NSInteger)to {
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if (self = [super init]) {
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_from = from;
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_to = to;
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}
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return self;
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}
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- (NSUInteger)hash {
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return _from ^ _to;
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}
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- (BOOL)isEqual:(id)object {
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if (object == self) {
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return YES;
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}
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if ([object isKindOfClass:[IGListMoveIndex class]]) {
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const NSInteger f1 = self.from, f2 = [object from];
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const NSInteger t1 = self.to, t2 = [object to];
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return f1 == f2 && t1 == t2;
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}
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return NO;
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}
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- (NSComparisonResult)compare:(id)object {
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const NSInteger right = [object from];
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const NSInteger left = [self from];
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if (left == right) {
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return NSOrderedSame;
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} else if (left < right) {
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return NSOrderedAscending;
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} else {
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return NSOrderedDescending;
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}
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}
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- (NSString *)description {
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return [NSString stringWithFormat:@"<%@ %p; from: %li; to: %li;>", NSStringFromClass(self.class), self, (long)self.from, (long)self.to];
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}
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@end
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