96 lines
3.2 KiB
Dart
Executable file
96 lines
3.2 KiB
Dart
Executable file
//
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// NSDictionary+SY.m
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// SYPictureMetadataExample
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//
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// Created by Stanislas Chevallier on 03/02/2017.
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// Copyright © 2017 Syan. All rights reserved.
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//
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#import "NSDictionary+SY.h"
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@implementation NSDictionary (SY)
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+ (NSDictionary *)sy_differencesFrom:(NSDictionary *)dictionaryOld
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to:(NSDictionary *)dictionaryNew
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includeValuesInDiff:(BOOL)includeValuesInDiff;
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{
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NSString *formatAdded = (includeValuesInDiff ? @"Added: %@" : @"Added" );
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NSString *formatUpdated = (includeValuesInDiff ? @"Updated: %@ -> %@" : @"Updated");
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NSString *formatRemoved = (includeValuesInDiff ? @"Removed: %@" : @"Removed");
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NSMutableSet *allKeys = [NSMutableSet set];
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[allKeys addObjectsFromArray:dictionaryOld.allKeys];
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[allKeys addObjectsFromArray:dictionaryNew.allKeys];
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NSMutableDictionary *diffs = [[NSMutableDictionary alloc] init];
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for (id key in allKeys)
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{
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id valueOld = dictionaryOld[key];
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id valueNew = dictionaryNew[key];
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if (valueOld && valueNew && [valueOld isEqual:valueNew])
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continue;
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BOOL oldIsNilOrDic = !valueOld || [valueOld isKindOfClass:[NSDictionary class]];
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BOOL newIsNilOrDic = !valueNew || [valueNew isKindOfClass:[NSDictionary class]];
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if (oldIsNilOrDic && newIsNilOrDic)
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{
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NSDictionary *subDiffs = [self sy_differencesFrom:valueOld
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to:valueNew
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includeValuesInDiff:includeValuesInDiff];
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[diffs setObject:subDiffs forKey:key];
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continue;
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}
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NSString *valueOldString = [valueOld description];
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NSString *valueNewString = [valueNew description];
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if ([valueOld isKindOfClass:[NSArray class]])
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valueOldString = [valueOld componentsJoinedByString:@", "];
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if ([valueNew isKindOfClass:[NSArray class]])
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valueNewString = [valueNew componentsJoinedByString:@", "];
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if ( valueOld && !valueNew)
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{
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[diffs setObject:[NSString stringWithFormat:formatRemoved, valueOldString]
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forKey:key];
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continue;
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}
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if (!valueOld && valueNew)
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{
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[diffs setObject:[NSString stringWithFormat:formatAdded, valueNewString]
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forKey:key];
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continue;
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}
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[diffs setObject:[NSString stringWithFormat:formatUpdated, valueOldString, valueNewString]
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forKey:key];
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}
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return [diffs copy];
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}
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- (NSArray <NSString *> *)sy_allKeypaths
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{
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NSMutableArray <NSString *> *keypaths = [NSMutableArray array];
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for (id key in self.allKeys)
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{
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NSString *keyString = [key description];
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[keypaths addObject:keyString];
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id value = self[key];
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if ([value isKindOfClass:[NSDictionary class]])
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{
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for (NSString *subKeypath in [(NSDictionary *)value sy_allKeypaths])
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[keypaths addObject:[@[keyString, subKeypath] componentsJoinedByString:@"."]];
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}
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}
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return [keypaths copy];
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}
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@end
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