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OF_ASSUME_NONNULL_BEGIN
@class OFArray OF_GENERIC(ObjectType);
@class OFEnumerator OF_GENERIC(ObjectType);
/**
* @protocol OFEnumeration OFEnumerator.h ObjFW/OFEnumerator.h
* @protocol OFEnumeration OFEnumerator.h ObjFW/ObjFW.h
*
* @brief A protocol for getting an enumerator for the object.
*
* If the class conforming to OFEnumeration is using lightweight generics, the
* only method, @ref objectEnumerator, should be overridden to use lightweight
* generics.
*/
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/*
* This needs to be exactly like this because it's hard-coded in the compiler.
*
* We need this bad check to see if we already imported Cocoa, which defines
* this as well.
*/
/**
* @struct OFFastEnumerationState OFEnumerator.h ObjFW/OFEnumerator.h
* @struct OFFastEnumerationState OFEnumerator.h ObjFW/ObjFW.h
*
* @brief State information for fast enumerations.
*/
typedef struct {
/** Arbitrary state information for the enumeration */
unsigned long state;
/** Pointer to a C array of objects to return */
id __unsafe_unretained _Nullable *_Nullable itemsPtr;
/** Arbitrary state information to detect mutations */
unsigned long *_Nullable mutationsPtr;
/** Additional arbitrary state information */
unsigned long extra[5];
} OFFastEnumerationState;
#ifndef NSINTEGER_DEFINED
typedef OFFastEnumerationState NSFastEnumerationState;
#endif
/**
* @protocol OFFastEnumeration OFEnumerator.h ObjFW/OFEnumerator.h
* @protocol OFFastEnumeration OFEnumerator.h ObjFW/ObjFW.h
*
* @brief A protocol for fast enumeration.
*
* The OFFastEnumeration protocol needs to be implemented by all classes
* supporting fast enumeration.
*/
@protocol OFFastEnumeration
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- (int)countByEnumeratingWithState: (OFFastEnumerationState *)state
objects: (id __unsafe_unretained _Nonnull *_Nonnull)
objects
count: (int)count;
@end
/**
* @class OFEnumerator OFEnumerator.h ObjFW/OFEnumerator.h
* @class OFEnumerator OFEnumerator.h ObjFW/ObjFW.h
*
* @brief A class which provides methods to enumerate through collections.
*/
@interface OFEnumerator OF_GENERIC(ObjectType): OFObject <OFFastEnumeration>
#if !defined(OF_HAVE_GENERICS) && !defined(DOXYGEN)
# define ObjectType id
#endif
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