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/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 * Jonathan Schleifer <js@heap.zone> * * 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. */ #ifndef __STDC_LIMIT_MACROS # define __STDC_LIMIT_MACROS #endif #ifndef __STDC_CONSTANT_MACROS # define __STDC_CONSTANT_MACROS #endif #include <stdarg.h> #import "OFObject.h" #import "OFCollection.h" #import "OFSerialization.h" OF_ASSUME_NONNULL_BEGIN /*! @file */ @class OFArray OF_GENERIC(ObjectType); #ifdef OF_HAVE_BLOCKS /*! * @brief A block for enumerating an OFSet. * * @param object The current object * @param stop A pointer to a variable that can be set to true to stop the * enumeration */ typedef void (^of_set_enumeration_block_t)(id object, bool *stop); /*! * @brief A block for filtering an OFSet. * * @param object The object to inspect * @return Whether the object should be in the filtered set */ typedef bool (^of_set_filter_block_t)(id object); #endif /*! * @class OFSet OFSet.h ObjFW/OFSet.h * * @brief An abstract class for an unordered set of unique objects. * * @warning Do not mutate objects that are in a set! Changing the hash of * objects in a set breaks the internal representation of the set! */ #ifdef OF_HAVE_GENERICS @interface OFSet <ObjectType>: #else # ifndef DOXYGEN # define ObjectType id # endif @interface OFSet: #endif OFObject <OFCollection, OFCopying, OFMutableCopying, OFSerialization> /*! * @brief Creates a new set. * * @return A new, autoreleased set */ + (instancetype)set; /*! * @brief Creates a new set with the specified set. * * @param set The set to initialize the set with * @return A new, autoreleased set with the specified set */ + (instancetype)setWithSet: (OFSet OF_GENERIC(ObjectType)*)set; /*! * @brief Creates a new set with the specified array. * * @param array The array to initialize the set with * @return A new, autoreleased set with the specified array */ + (instancetype)setWithArray: (OFArray OF_GENERIC(ObjectType)*)array; /*! * @brief Creates a new set with the specified objects. * * @param firstObject The first object for the set * @return A new, autoreleased set with the specified objects */ + (instancetype)setWithObjects: (ObjectType)firstObject, ...; /*! * @brief Creates a new set with the specified objects. * * @param objects An array of objects for the set * @param count The number of objects in the specified array * @return A new, autoreleased set with the specified objects */ + (instancetype)setWithObjects: (ObjectType const _Nonnull *_Nonnull)objects count: (size_t)count; /*! * @brief Initializes an already allocated set with the specified set. * * @param set The set to initialize the set with * @return An initialized set with the specified set */ - initWithSet: (OFSet OF_GENERIC(ObjectType)*)set; /*! * @brief Initializes an already allocated set with the specified array. * * @param array The array to initialize the set with * @return An initialized set with the specified array */ - initWithArray: (OFArray OF_GENERIC(ObjectType)*)array; /*! * @brief Initializes an already allocated set with the specified objects. * * @param firstObject The first object for the set * @return An initialized set with the specified objects */ - initWithObjects: (ObjectType)firstObject, ...; /*! * @brief Initializes an already allocated set with the specified objects. * * @param objects An array of objects for the set * @param count The number of objects in the specified array * @return An initialized set with the specified objects */ - initWithObjects: (ObjectType const _Nonnull *_Nonnull)objects count: (size_t)count; /*! * @brief Initializes an already allocated set with the specified object and * va_list. * * @param firstObject The first object for the set * @param arguments A va_list with the other objects * @return An initialized set with the specified object and va_list */ - initWithObject: (ObjectType)firstObject arguments: (va_list)arguments; /*! * @brief Returns whether the receiver is a subset of the specified set. * * @return Whether the receiver is a subset of the specified set */ - (bool)isSubsetOfSet: (OFSet OF_GENERIC(ObjectType)*)set; /*! * @brief Returns whether the receiver and the specified set have at least one * object in common. * * @return Whether the receiver and the specified set have at least one object * in common */ - (bool)intersectsSet: (OFSet OF_GENERIC(ObjectType)*)set; /*! * @brief Creates a new set which contains the objects which are in the * receiver, but not in the specified set. * * @param set The set whose objects will not be in the new set */ - (OFSet OF_GENERIC(ObjectType)*)setBySubtractingSet: (OFSet OF_GENERIC(ObjectType)*)set; /*! * @brief Creates a new set by creating the intersection of the receiver and * the specified set. * * @param set The set to intersect with */ - (OFSet OF_GENERIC(ObjectType)*)setByIntersectingWithSet: (OFSet OF_GENERIC(ObjectType)*)set; /*! * @brief Creates a new set by creating the union of the receiver and the * specified set. * * @param set The set to create the union with */ - (OFSet OF_GENERIC(ObjectType)*)setByAddingSet: (OFSet OF_GENERIC(ObjectType)*)set; /*! * @brief Returns an array of all objects in the set. * * @return An array of all objects in the set */ - (OFArray OF_GENERIC(ObjectType)*)allObjects; /*! * @brief Returns an arbitrary object in the set. * * @return An arbitrary object in the set */ - (ObjectType)anyObject; /*! * @brief Checks whether the set contains an object equal to the specified * object. * * @param object The object which is checked for being in the set * @return A boolean whether the set contains the specified object */ - (bool)containsObject: (nullable ObjectType)object; /*! * @brief Returns an OFEnumerator to enumerate through all objects of the set. * * @returns An OFEnumerator to enumerate through all objects of the set */ - (OFEnumerator OF_GENERIC(ObjectType)*)objectEnumerator; #ifdef OF_HAVE_BLOCKS /*! * @brief Executes a block for each object in the set. * * @param block The block to execute for each object in the set */ - (void)enumerateObjectsUsingBlock: (of_set_enumeration_block_t)block; /*! * @brief Creates a new set, only containing the objects for which the block * returns true. * * @param block A block which determines if the object should be in the new set * @return A new, autoreleased OFSet */ - (OFSet OF_GENERIC(ObjectType)*)filteredSetUsingBlock: (of_set_filter_block_t)block; #endif @end #if !defined(OF_HAVE_GENERICS) && !defined(DOXYGEN) # undef ObjectType #endif OF_ASSUME_NONNULL_END #import "OFMutableSet.h"