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#import "FImmutableSortedDictionary.h"
#import "FArraySortedDictionary.h"
#import "FTreeSortedDictionary.h"
#define THROW_ABSTRACT_METHOD_EXCEPTION(sel) do { \
@throw [NSException exceptionWithName:NSInternalInconsistencyException \
reason:[NSString stringWithFormat:@"You must override %@ in a subclass", NSStringFromSelector(sel)] \
userInfo:nil]; \
} while(0)
@implementation FImmutableSortedDictionary
+ (FImmutableSortedDictionary *)dictionaryWithComparator:(NSComparator)comparator
{
return [[FArraySortedDictionary alloc] initWithComparator:comparator];
}
+ (FImmutableSortedDictionary *)fromDictionary:(NSDictionary *)dictionary withComparator:(NSComparator)comparator
{
if (dictionary.count <= SORTED_DICTIONARY_ARRAY_TO_RB_TREE_SIZE_THRESHOLD) {
return [FArraySortedDictionary fromDictionary:dictionary withComparator:comparator];
} else {
return [FTreeSortedDictionary fromDictionary:dictionary withComparator:comparator];
}
}
- (FImmutableSortedDictionary *) insertKey:(id)aKey withValue:(id)aValue {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(insertKey:withValue:));
}
- (FImmutableSortedDictionary *) removeKey:(id)aKey {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(removeKey:));
}
- (id) get:(id) key {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(get:));
}
- (id) getPredecessorKey:(id) key {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(getPredecessorKey:));
}
- (BOOL) isEmpty {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(isEmpty));
}
- (int) count {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector((count)));
}
- (id) minKey {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(minKey));
}
- (id) maxKey {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(maxKey));
}
- (void) enumerateKeysAndObjectsUsingBlock:(void (^)(id, id, BOOL *))block {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(enumerateKeysAndObjectsUsingBlock:));
}
- (void) enumerateKeysAndObjectsReverse:(BOOL)reverse usingBlock:(void (^)(id, id, BOOL *))block {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(enumerateKeysAndObjectsReverse:usingBlock:));
}
- (BOOL) contains:(id)key {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(contains:));
}
- (NSEnumerator *) keyEnumerator {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(keyEnumerator));
}
- (NSEnumerator *) keyEnumeratorFrom:(id)startKey {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(keyEnumeratorFrom:));
}
- (NSEnumerator *) reverseKeyEnumerator {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(reverseKeyEnumerator));
}
- (NSEnumerator *) reverseKeyEnumeratorFrom:(id)startKey {
THROW_ABSTRACT_METHOD_EXCEPTION(@selector(reverseKeyEnumeratorFrom:));
}
- (BOOL)isEqual:(id)object {
if (![object isKindOfClass:[FImmutableSortedDictionary class]]) {
return NO;
}
FImmutableSortedDictionary *other = (FImmutableSortedDictionary *)object;
if (self.count != other.count) {
return NO;
}
__block BOOL isEqual = YES;
[self enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL *stop) {
id otherValue = [other objectForKey:key];
isEqual = isEqual && (value == otherValue || [value isEqual:otherValue]);
*stop = !isEqual;
}];
return isEqual;
}
- (NSUInteger)hash {
__block NSUInteger hash = 0;
[self enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL *stop) {
hash = (hash * 31 + [key hash]) * 17 + [value hash];
}];
return hash;
}
- (NSString *)description {
NSMutableString *str = [[NSMutableString alloc] init];
__block BOOL first = YES;
[str appendString:@"{ "];
[self enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL *stop) {
if (!first) {
[str appendString:@", "];
}
first = NO;
[str appendString:[NSString stringWithFormat:@"%@: %@", key, value]];
}];
[str appendString:@" }"];
return str;
}
#pragma mark -
#pragma mark Methods similar to NSMutableDictionary
- (FImmutableSortedDictionary *) setObject:(__unsafe_unretained id)anObject forKey:(__unsafe_unretained id)aKey {
return [self insertKey:aKey withValue:anObject];
}
- (FImmutableSortedDictionary *) removeObjectForKey:(__unsafe_unretained id)aKey {
return [self removeKey:aKey];
}
- (id) objectForKey:(__unsafe_unretained id)key {
return [self get:key];
}
@end
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