blob: 1b63c2c045c4d53b918b60ae363d059c2293d153 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
#import "Firestore/third_party/Immutable/FSTImmutableSortedSet.h"
#import "Firestore/third_party/Immutable/FSTImmutableSortedDictionary.h"
NS_ASSUME_NONNULL_BEGIN
@interface FSTImmutableSortedSet ()
@property(nonatomic, strong) FSTImmutableSortedDictionary *dictionary;
@end
@implementation FSTImmutableSortedSet
+ (FSTImmutableSortedSet *)setWithComparator:(NSComparator)comparator {
return [FSTImmutableSortedSet setWithKeysFromDictionary:@{} comparator:comparator];
}
+ (FSTImmutableSortedSet *)setWithKeysFromDictionary:(NSDictionary *)dictionary
comparator:(NSComparator)comparator {
FSTImmutableSortedDictionary *setDict =
[FSTImmutableSortedDictionary dictionaryWithDictionary:dictionary comparator:comparator];
return [[FSTImmutableSortedSet alloc] initWithDictionary:setDict];
}
// Designated initializer.
- (id)initWithDictionary:(FSTImmutableSortedDictionary *)dictionary {
self = [super init];
if (self != nil) {
_dictionary = dictionary;
}
return self;
}
- (BOOL)isEqual:(id)object {
if (![object isKindOfClass:[FSTImmutableSortedSet class]]) {
return NO;
}
FSTImmutableSortedSet *other = (FSTImmutableSortedSet *)object;
return [self.dictionary isEqual:other.dictionary];
}
- (NSUInteger)hash {
return [self.dictionary hash];
}
- (BOOL)containsObject:(id)object {
return [self.dictionary containsKey:object];
}
- (FSTImmutableSortedSet *)setByAddingObject:(id)object {
FSTImmutableSortedDictionary *newDictionary =
[self.dictionary dictionaryBySettingObject:[NSNull null] forKey:object];
if (newDictionary != self.dictionary) {
return [[FSTImmutableSortedSet alloc] initWithDictionary:newDictionary];
} else {
return self;
}
}
- (FSTImmutableSortedSet *)setByRemovingObject:(id)object {
FSTImmutableSortedDictionary *newDictionary =
[self.dictionary dictionaryByRemovingObjectForKey:object];
if (newDictionary != self.dictionary) {
return [[FSTImmutableSortedSet alloc] initWithDictionary:newDictionary];
} else {
return self;
}
}
- (id)firstObject {
return [self.dictionary minKey];
}
- (id)lastObject {
return [self.dictionary maxKey];
}
- (NSUInteger)indexOfObject:(id)object {
return [self.dictionary indexOfKey:object];
}
- (NSUInteger)count {
return [self.dictionary count];
}
- (BOOL)isEmpty {
return [self.dictionary isEmpty];
}
- (void)enumerateObjectsUsingBlock:(void (^)(id, BOOL *))block {
[self enumerateObjectsReverse:NO usingBlock:block];
}
- (void)enumerateObjectsFrom:(id)start to:(_Nullable id)end usingBlock:(void (^)(id, BOOL *))block {
NSEnumerator *enumerator = [self.dictionary keyEnumeratorFrom:start to:end];
id item = [enumerator nextObject];
while (item) {
BOOL stop = NO;
block(item, &stop);
if (stop) {
return;
}
item = [enumerator nextObject];
}
}
- (void)enumerateObjectsReverse:(BOOL)reverse usingBlock:(void (^)(id, BOOL *))block {
[self.dictionary enumerateKeysAndObjectsReverse:reverse
usingBlock:^(id key, id value, BOOL *stop) {
block(key, stop);
}];
}
- (NSEnumerator *)objectEnumerator {
return [self.dictionary keyEnumerator];
}
- (NSEnumerator *)objectEnumeratorFrom:(id)startKey {
return [self.dictionary keyEnumeratorFrom:startKey];
}
- (NSString *)description {
NSMutableString *str = [[NSMutableString alloc] init];
__block BOOL first = YES;
[str appendString:@"FSTImmutableSortedSet ( "];
[self enumerateObjectsUsingBlock:^(id obj, BOOL *stop) {
if (!first) {
[str appendString:@", "];
}
first = NO;
[str appendString:[NSString stringWithFormat:@"%@", obj]];
}];
[str appendString:@" )"];
return str;
}
@end
NS_ASSUME_NONNULL_END
|
