1 files changed, 27 insertions, 0 deletions
diff --git a/Firebase/Database/third_party/FImmutableSortedDictionary/FImmutableSortedDictionary/FLLRBEmptyNode.h b/Firebase/Database/third_party/FImmutableSortedDictionary/FImmutableSortedDictionary/FLLRBEmptyNode.h
new file mode 100644
index 0000000..833f2a5
--- /dev/null
+++ b/Firebase/Database/third_party/FImmutableSortedDictionary/FImmutableSortedDictionary/FLLRBEmptyNode.h
@@ -0,0 +1,27 @@
+#import <Foundation/Foundation.h>
+#import "FLLRBNode.h"
+
+@interface FLLRBEmptyNode : NSObject <FLLRBNode>
+
++ (id)emptyNode;
+
+- (id)copyWith:(id) aKey withValue:(id) aValue withColor:(FLLRBColor*) aColor withLeft:(id<FLLRBNode>)aLeft withRight:(id<FLLRBNode>)aRight;
+- (id<FLLRBNode>) insertKey:(id) aKey forValue:(id)aValue withComparator:(NSComparator)aComparator;
+- (id<FLLRBNode>) remove:(id) aKey withComparator:(NSComparator)aComparator;
+- (int) count;
+- (BOOL) isEmpty;
+- (BOOL) inorderTraversal:(BOOL (^)(id key, id value))action;
+- (BOOL) reverseTraversal:(BOOL (^)(id key, id value))action;
+- (id<FLLRBNode>) min;
+- (id) minKey;
+- (id) maxKey;
+- (BOOL) isRed;
+- (int) check;
+
+@property (nonatomic, strong) id key;
+@property (nonatomic, strong) id value;
+@property (nonatomic, strong) FLLRBColor* color;
+@property (nonatomic, strong) id<FLLRBNode> left;
+@property (nonatomic, strong) id<FLLRBNode> right;
+
+@end