2017-10-03 08:55:22 -07:00
|
|
|
/**
|
|
|
|
|
* Implementation of an immutable SortedMap using a Left-leaning
|
|
|
|
|
* Red-Black Tree, adapted from the implementation in Mugs
|
|
|
|
|
* (http://mads379.github.com/mugs/) by Mads Hartmann Jensen
|
|
|
|
|
* (mads379@gmail.com).
|
|
|
|
|
*
|
|
|
|
|
* Original paper on Left-leaning Red-Black Trees:
|
|
|
|
|
* http://www.cs.princeton.edu/~rs/talks/LLRB/LLRB.pdf
|
|
|
|
|
*
|
|
|
|
|
* Invariant 1: No red node has a red child
|
|
|
|
|
* Invariant 2: Every leaf path has the same number of black nodes
|
|
|
|
|
* Invariant 3: Only the left child can be red (left leaning)
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#import <Foundation/Foundation.h>
|
|
|
|
|
|
2017-11-16 20:52:01 -08:00
|
|
|
#import "Firestore/third_party/Immutable/FSTImmutableSortedDictionary.h"
|
|
|
|
|
#import "Firestore/third_party/Immutable/FSTLLRBNode.h"
|
2017-10-03 08:55:22 -07:00
|
|
|
|
|
|
|
|
NS_ASSUME_NONNULL_BEGIN
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* FSTTreeSortedDictionary is a tree-based implementation of FSTImmutableSortedDictionary.
|
|
|
|
|
* You should not use this class directly. You should use FSTImmutableSortedDictionary.
|
|
|
|
|
*/
|
|
|
|
|
@interface FSTTreeSortedDictionary <KeyType, ValueType> :
|
|
|
|
|
FSTImmutableSortedDictionary<KeyType, ValueType>
|
|
|
|
|
|
|
|
|
|
@property(nonatomic, copy, readonly) NSComparator comparator;
|
|
|
|
|
@property(nonatomic, strong, readonly) id<FSTLLRBNode> root;
|
|
|
|
|
|
|
|
|
|
- (id)init __attribute__((unavailable("Use initWithComparator:withRoot: instead.")));
|
|
|
|
|
|
|
|
|
|
- (instancetype)initWithComparator:(NSComparator)aComparator;
|
|
|
|
|
|
|
|
|
|
- (instancetype)initWithComparator:(NSComparator)aComparator
|
|
|
|
|
withRoot:(id<FSTLLRBNode>)aRoot NS_DESIGNATED_INITIALIZER;
|
|
|
|
|
|
|
|
|
|
@end
|
|
|
|
|
|
|
|
|
|
NS_ASSUME_NONNULL_END
|