/*
* Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#import "OFObject.h"
OF_ASSUME_NONNULL_BEGIN
/**
* @class OFPair OFPair.h ObjFW/OFPair.h
*
* @brief A class for storing a pair of two objects.
*/
@interface OFPair OF_GENERIC(FirstType, SecondType): OFObject <OFCopying,
OFMutableCopying>
#if !defined(OF_HAVE_GENERICS) && !defined(DOXYGEN)
# define FirstType id
# define SecondType id
#endif
{
FirstType _Nullable _firstObject;
SecondType _Nullable _secondObject;
OF_RESERVE_IVARS(OFPair, 4)
}
/**
* @brief The first object of the pair.
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic, retain)
FirstType firstObject;
/**
* @brief The second object of the pair.
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic, retain)
SecondType secondObject;
/**
* @brief Creates a new OFPair with the specified objects.
*
* @param firstObject The first object for the pair
* @param secondObject The second object for the pair
* @return A new, autoreleased OFPair
*/
+ (instancetype)pairWithFirstObject: (nullable FirstType)firstObject
secondObject: (nullable SecondType)secondObject;
/**
* @brief Initializes an already allocated OFPair with the specified objects.
*
* @param firstObject The first object for the pair
* @param secondObject The second object for the pair
* @return An initialized OFPair
*/
- (instancetype)initWithFirstObject: (nullable FirstType)firstObject
secondObject: (nullable SecondType)secondObject
OF_DESIGNATED_INITIALIZER;
#if !defined(OF_HAVE_GENERICS) && !defined(DOXYGEN)
# undef FirstType
# undef SecondType
#endif
@end
OF_ASSUME_NONNULL_END
#import "OFMutablePair.h"