Initial commit

ReactKit/Base/RCTSparseArray.h

@@ -0,0 +1,30 @@
+// Copyright 2004-present Facebook. All Rights Reserved.
+
+#import <Foundation/Foundation.h>
+
+@interface RCTSparseArray : NSObject <NSCopying>
+
+- (instancetype)init;
+- (instancetype)initWithCapacity:(NSUInteger)capacity;
+- (instancetype)initWithSparseArray:(RCTSparseArray *)sparseArray;
+
++ (instancetype)sparseArray;
++ (instancetype)sparseArrayWithCapacity:(NSUInteger)capacity;
++ (instancetype)sparseArrayWithSparseArray:(RCTSparseArray *)sparseArray;
+
+// Use nil object to remove at idx.
+- (void)setObject:(id)obj atIndexedSubscript:(NSUInteger)idx;
+- (id)objectAtIndexedSubscript:(NSUInteger)idx;
+
+// Use nil obj to remove at key.
+- (void)setObject:(id)obj forKeyedSubscript:(NSNumber *)key;
+- (id)objectForKeyedSubscript:(NSNumber *)key;
+
+@property (readonly, nonatomic) NSUInteger count;
+@property (readonly, nonatomic, copy) NSArray *allIndexes;
+@property (readonly, nonatomic, copy) NSArray *allObjects;
+
+- (void)enumerateObjectsUsingBlock:(void (^)(id obj, NSNumber *idx, BOOL *stop))block;
+- (void)enumerateObjectsWithOptions:(NSEnumerationOptions)opts usingBlock:(void (^)(id obj, NSNumber *idx, BOOL *stop))block;
+
+@end