IGListKit/Source/IGListMoveIndexPath.m
FBShipIt cdc796746a Initial commit
fbshipit-source-id: c38b897b9e2b87c782e0e01b0145d9189dc7f9d8
2016-10-11 10:12:17 -04:00

51 lines
1.3 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 "IGListMoveIndexPath.h"
#import "IGListMoveIndexPathInternal.h"
#import <IGListKit/IGListMacros.h>
@implementation IGListMoveIndexPath
- (instancetype)initWithFrom:(NSIndexPath *)from to:(NSIndexPath *)to {
NSParameterAssert(from != nil);
NSParameterAssert(to != nil);
if (self = [super init]) {
_from = from;
_to = to;
}
return self;
}
- (NSUInteger)hash {
return [_from hash] ^ [_to hash];
}
- (BOOL)isEqual:(id)object {
if (object == self) {
return YES;
}
if ([object isKindOfClass:[IGListMoveIndexPath class]]) {
NSIndexPath *f1 = self.from, *f2 = [object from];
NSIndexPath *t1 = self.to, *t2 = [object to];
return [f1 isEqual:f2] && [t1 isEqual:t2];
}
return NO;
}
- (NSComparisonResult)compare:(id)object {
return [[self from] compare:[object from]];
}
- (NSString *)description {
return [NSString stringWithFormat:@"<%@ %p; from: %@; to: %@;>", NSStringFromClass(self.class), self, self.from, self.to];
}
@end