IGListKit/Source/Common/IGListMoveIndex.m
Ryan Nystrom ad30e53507 Move macOS and diffing files to Common dir
Summary:
Moving files to `Common` dir so changes are more automated with Buck and easier to manage in the long run. Ran `pod install` on test and example targets. Updated buck file to include `Common` so diffing lib still works.

Part of #270

Reviewed By: jessesquires

Differential Revision: D4346722

fbshipit-source-id: 366d89f6dd571b158b5fccd542080c51517ed341
2016-12-19 12:29:24 -08:00

55 lines
1.4 KiB
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 "IGListMoveIndex.h"
#import "IGListMoveIndexInternal.h"
@implementation IGListMoveIndex
- (instancetype)initWithFrom:(NSInteger)from to:(NSInteger)to {
if (self = [super init]) {
_from = from;
_to = to;
}
return self;
}
- (NSUInteger)hash {
return _from ^ _to;
}
- (BOOL)isEqual:(id)object {
if (object == self) {
return YES;
}
if ([object isKindOfClass:[IGListMoveIndex class]]) {
const NSInteger f1 = self.from, f2 = [object from];
const NSInteger t1 = self.to, t2 = [object to];
return f1 == f2 && t1 == t2;
}
return NO;
}
- (NSComparisonResult)compare:(id)object {
const NSInteger right = [object from];
const NSInteger left = [self from];
if (left == right) {
return NSOrderedSame;
} else if (left < right) {
return NSOrderedAscending;
} else {
return NSOrderedDescending;
}
}
- (NSString *)description {
return [NSString stringWithFormat:@"<%@ %p; from: %zi; to: %zi;>", NSStringFromClass(self.class), self, self.from, self.to];
}
@end