mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-15 13:28:18 +00:00
000bc36919
Summary: Relicensing IGListKit under MIT Reviewed By: calimarkus Differential Revision: D7764125 fbshipit-source-id: 6c773195ef3184202725fe7f08de754f979cb83f
53 lines
1.3 KiB
Objective-C
53 lines
1.3 KiB
Objective-C
/**
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* Copyright (c) 2016-present, Facebook, Inc.
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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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#import "IGListMoveIndexInternal.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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