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47 lines
1.8 KiB
Objective-C
47 lines
1.8 KiB
Objective-C
//
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// ASTwoDimensionalArrayUtils.h
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// Texture
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//
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// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
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// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import <Foundation/Foundation.h>
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#import <AsyncDisplayKit/ASBaseDefines.h>
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NS_ASSUME_NONNULL_BEGIN
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/**
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* Helper functions for two-dimensional array, where the objects of the root array are each arrays.
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*/
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/**
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* Deep mutable copy of an array that contains arrays, which contain objects. It will go one level deep into the array to copy.
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* This method is substantially faster than the generalized version, e.g. about 10x faster, so use it whenever it fits the need.
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*/
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AS_EXTERN NSMutableArray<NSMutableArray *> *ASTwoDimensionalArrayDeepMutableCopy(NSArray<NSArray *> *array) AS_WARN_UNUSED_RESULT;
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/**
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* Delete the elements of the mutable two-dimensional array at given index paths – sorted in descending order!
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*/
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AS_EXTERN void ASDeleteElementsInTwoDimensionalArrayAtIndexPaths(NSMutableArray *mutableArray, NSArray<NSIndexPath *> *indexPaths);
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/**
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* Return all the index paths of a two-dimensional array, in ascending order.
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*/
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AS_EXTERN NSArray<NSIndexPath *> *ASIndexPathsForTwoDimensionalArray(NSArray<NSArray *>* twoDimensionalArray) AS_WARN_UNUSED_RESULT;
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/**
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* Return all the elements of a two-dimensional array, in ascending order.
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*/
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AS_EXTERN NSArray *ASElementsInTwoDimensionalArray(NSArray<NSArray *>* twoDimensionalArray) AS_WARN_UNUSED_RESULT;
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/**
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* Attempt to get the object at the given index path. Returns @c nil if the index path is out of bounds.
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*/
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AS_EXTERN id _Nullable ASGetElementInTwoDimensionalArray(NSArray<NSArray *> *array, NSIndexPath *indexPath) AS_WARN_UNUSED_RESULT;
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NS_ASSUME_NONNULL_END
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