117 lines
2.2 KiB
Objective-C
117 lines
2.2 KiB
Objective-C
// Copyright 2004-present Facebook. All Rights Reserved.
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#import "RCTSparseArray.h"
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@implementation RCTSparseArray
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{
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NSMutableDictionary *_storage;
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}
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- (instancetype)init
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{
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return [self initWithCapacity:0];
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}
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- (instancetype)initWithCapacity:(NSUInteger)capacity
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{
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if ((self = [super init])) {
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_storage = [NSMutableDictionary dictionaryWithCapacity:capacity];
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}
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return self;
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}
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- (instancetype)initWithSparseArray:(RCTSparseArray *)sparseArray
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{
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if ((self = [super init])) {
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_storage = [sparseArray->_storage copy];
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}
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return self;
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}
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+ (instancetype)sparseArray
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{
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return [[self alloc] init];
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}
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+ (instancetype)sparseArrayWithCapacity:(NSUInteger)capacity
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{
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return [[self alloc] initWithCapacity:capacity];
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}
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+ (instancetype)sparseArrayWithSparseArray:(RCTSparseArray *)sparseArray
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{
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return [[self alloc] initWithSparseArray:sparseArray];
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}
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- (id)objectAtIndexedSubscript:(NSUInteger)idx
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{
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return _storage[@(idx)];
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}
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- (void)setObject:(id)obj atIndexedSubscript:(NSUInteger)idx
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{
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self[@(idx)] = obj;
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}
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- (id)objectForKeyedSubscript:(NSNumber *)key
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{
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return _storage[key];
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}
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- (void)setObject:(id)obj forKeyedSubscript:(NSNumber *)key
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{
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if (obj) {
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_storage[key] = obj;
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} else {
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[_storage removeObjectForKey:key];
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}
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}
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- (NSUInteger)count
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{
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return _storage.count;
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}
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- (NSArray *)allIndexes
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{
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return _storage.allKeys;
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}
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- (NSArray *)allObjects
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{
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return _storage.allValues;
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}
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- (void)enumerateObjectsUsingBlock:(void (^)(id obj, NSNumber *idx, BOOL *stop))block
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{
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NSParameterAssert(block != nil);
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[_storage enumerateKeysAndObjectsUsingBlock:^(NSNumber *key, id obj, BOOL *stop) {
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block(obj, key, stop);
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}];
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}
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- (void)enumerateObjectsWithOptions:(NSEnumerationOptions)opts usingBlock:(void (^)(id obj, NSNumber *idx, BOOL *stop))block
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{
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NSParameterAssert(block != nil);
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[_storage enumerateKeysAndObjectsWithOptions:opts usingBlock:^(NSNumber *key, id obj, BOOL *stop) {
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block(obj, key, stop);
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}];
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}
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- (void)removeAllObjects
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{
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[_storage removeAllObjects];
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}
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- (id)copyWithZone:(NSZone *)zone
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{
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return [[[self class] allocWithZone:zone] initWithSparseArray:self];
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}
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- (NSString *)description
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{
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return [[super description] stringByAppendingString:[_storage description]];
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}
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@end
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