ObjFW  Check-in [f072e1a338]

 */
- (OFArray*)filteredArrayUsingBlock: (of_array_filter_block_t)block;
#endif
@end

@interface OFArrayEnumerator: OFEnumerator
{
	OFArray	      *array;
	OFDataArray   *dataArray;
	size_t	      count;
	unsigned long mutations;
	unsigned long *mutationsPtr;
	size_t	      pos;
}

-    initWithArray: (OFArray*)data
	 dataArray: (OFDataArray*)dataArray
  mutationsPointer: (unsigned long*)mutationsPtr;
@end

#import "OFMutableArray.h"

	state->mutationsPtr = (unsigned long*)self;

	return (int)count;
}

- (OFEnumerator*)objectEnumerator
{
	return [[[OFArrayEnumerator alloc] initWithArray: self
					       dataArray: array
					mutationsPointer: NULL] autorelease];
}

#ifdef OF_HAVE_BLOCKS
- (void)enumerateObjectsUsingBlock: (of_array_enumeration_block_t)block
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	id *objs = [array cArray];

	[array release];

	[super dealloc];
}
@end

@implementation OFArrayEnumerator
-    initWithArray: (OFArray*)array_
	 dataArray: (OFDataArray*)dataArray_
  mutationsPointer: (unsigned long*)mutationsPtr_;
{
	self = [super init];

	array = [array_ retain];
	dataArray = [dataArray_ retain];
	count = [dataArray count];
	mutations = (mutationsPtr_ != NULL ? *mutationsPtr_ : 0);
	mutationsPtr = mutationsPtr_;

	return self;
}

- (void)dealloc
{
	[array release];
	[dataArray release];

	[super dealloc];
}

- (id)nextObject
{
	if (mutationsPtr != NULL && *mutationsPtr != mutations)
		@throw [OFEnumerationMutationException newWithClass: isa
							     object: array];

	if (pos < count)
		return *(id*)[dataArray itemAtIndex: pos++];

	return nil;
}

- (void)reset
{
	if (mutationsPtr != NULL && *mutationsPtr != mutations)
		@throw [OFEnumerationMutationException newWithClass: isa
							     object: array];

	pos = 0;
}
@end

- (OFDictionary*)filteredDictionaryUsingBlock:
    (of_dictionary_filter_block_t)block;
#endif
@end

@interface OFDictionaryEnumerator: OFEnumerator
{
	OFDictionary *dictionary;
	struct of_dictionary_bucket **data;
	uint32_t size;
	unsigned long mutations;
	unsigned long *mutationsPtr;
	uint32_t pos;
}

- initWithDictionary: (OFDictionary*)dictionary
		data: (struct of_dictionary_bucket**)data
		size: (uint32_t)size
    mutationsPointer: (unsigned long*)mutationsPtr;
@end

@interface OFDictionaryObjectEnumerator: OFDictionaryEnumerator
@end

@interface OFDictionaryKeyEnumerator: OFDictionaryEnumerator
@end

	return i;
}

- (OFEnumerator*)objectEnumerator
{
	return [[[OFDictionaryObjectEnumerator alloc]
	    initWithDictionary: self
			  data: data
			  size: size
	      mutationsPointer: NULL] autorelease];
}

- (OFEnumerator*)keyEnumerator
{
	return [[[OFDictionaryKeyEnumerator alloc]
	    initWithDictionary: self
			  data: data
			  size: size
	      mutationsPointer: NULL] autorelease];
}

#ifdef OF_HAVE_BLOCKS
- (void)enumerateKeysAndObjectsUsingBlock:
    (of_dictionary_enumeration_block_t)block
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];

	 */
	ret->isa = [OFString class];
	return ret;
}
@end

@implementation OFDictionaryEnumerator
- initWithDictionary: (OFDictionary*)dictionary_
		data: (struct of_dictionary_bucket**)data_
		size: (uint32_t)size_
    mutationsPointer: (unsigned long*)mutationsPtr_
{
	self = [super init];

	dictionary = [dictionary_ retain];
	data = data_;
	size = size_;
	mutations = (mutationsPtr_ != NULL ? *mutationsPtr_ : 0);
	mutationsPtr = mutationsPtr_;

	return self;
}

- (void)dealloc
{
	[dictionary release];

	[super dealloc];
}

- (void)reset
{
	if (mutationsPtr != NULL && *mutationsPtr != mutations)
		@throw [OFEnumerationMutationException
		    newWithClass: isa
			  object: dictionary];

	pos = 0;
}
@end

@implementation OFDictionaryObjectEnumerator
- (id)nextObject
{
	if (mutationsPtr != NULL && *mutationsPtr != mutations)
		@throw [OFEnumerationMutationException
		    newWithClass: isa
			  object: dictionary];

	for (; pos < size && (data[pos] == NULL ||
	    data[pos] == DELETED); pos++);

	if (pos < size)
		return data[pos++]->object;
	else
		return nil;
}
@end

@implementation OFDictionaryKeyEnumerator
- (id)nextObject
{
	if (mutationsPtr != NULL && *mutationsPtr != mutations)
		@throw [OFEnumerationMutationException
		    newWithClass: isa
			  object: dictionary];

	for (; pos < size && (data[pos] == NULL ||
	    data[pos] == DELETED); pos++);

	if (pos < size)
		return data[pos++]->key;
	else
		return nil;
}
@end

 * \param listobj The list object returned by append / prepend
 */
- (void)removeListObject: (of_list_object_t*)listobj;
@end

@interface OFListEnumerator: OFEnumerator
{
	OFList		 *list;
	of_list_object_t *current;
	unsigned long	 mutations;
	unsigned long	 *mutationsPtr;
}

-     initWithList: (OFList*)list
  mutationsPointer: (unsigned long*)mutationsPtr;
@end

	*list_obj = (*list_obj)->next;
	return 1;
}

- (OFEnumerator*)objectEnumerator
{
	return [[[OFListEnumerator alloc]
	        initWithList: self
	    mutationsPointer: &mutations] autorelease];
}
@end

@implementation OFListEnumerator
-     initWithList: (OFList*)list_
  mutationsPointer: (unsigned long*)mutationsPtr_;
{
	self = [super init];

	list = [list_ retain];
	current = [list firstListObject];
	mutations = *mutationsPtr_;
	mutationsPtr = mutationsPtr_;

	return self;
}

- (void)dealloc
{
	[list release];

	[super dealloc];
}

- (id)nextObject
{
	id ret;

	if (*mutationsPtr != mutations)
		@throw [OFEnumerationMutationException newWithClass: isa
							     object: list];

	if (current == NULL)
		return nil;

	ret = current->object;
	current = current->next;

	return ret;
}

- (void)reset
{
	if (*mutationsPtr != mutations)
		@throw [OFEnumerationMutationException newWithClass: isa];

	current = [list firstListObject];
}
@end

	return (int)count;
}

- (OFEnumerator*)objectEnumerator
{
	return [[[OFArrayEnumerator alloc]
	       initWithArray: self
		   dataArray: array
	    mutationsPointer: &mutations] autorelease];
}

#ifdef OF_HAVE_BLOCKS
- (void)enumerateObjectsUsingBlock: (of_array_enumeration_block_t)block
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	id *objs = [array cArray];
	size_t i, count = [array count];
	BOOL stop = NO;
	unsigned long mutations2 = mutations;

	for (i = 0; i < count && !stop; i++) {
		if (mutations != mutations2)
			@throw [OFEnumerationMutationException
			    newWithClass: isa
				  object: self];

		block(objs[i], i, &stop);
		[pool releaseObjects];
	}

	[pool release];
}

- (void)replaceObjectsUsingBlock: (of_array_replace_block_t)block
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	id *objs = [array cArray];
	size_t i, count = [array count];
	BOOL stop = NO;
	unsigned long mutations2 = mutations;

	for (i = 0; i < count && !stop; i++) {
		if (mutations != mutations2)
			@throw [OFEnumerationMutationException
			    newWithClass: isa
				  object: self];

		id new = block(objs[i], i, &stop);

		if (new == nil)
			@throw [OFInvalidArgumentException newWithClass: isa
							       selector: _cmd];

	return i;
}

- (OFEnumerator*)objectEnumerator
{
	return [[[OFDictionaryObjectEnumerator alloc]
	    initWithDictionary: self
			 data: data
			 size: size
	     mutationsPointer: &mutations] autorelease];
}

- (OFEnumerator*)keyEnumerator
{
	return [[[OFDictionaryKeyEnumerator alloc]
	    initWithDictionary: self
			 data: data
			 size: size
	     mutationsPointer: &mutations] autorelease];
}

#ifdef OF_HAVE_BLOCKS
- (void)enumerateKeysAndObjectsUsingBlock:
    (of_dictionary_enumeration_block_t)block
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	size_t i;
	BOOL stop = NO;
	unsigned long mutations2 = mutations;

	for (i = 0; i < size && !stop; i++) {
		if (mutations != mutations2)
			@throw [OFEnumerationMutationException
			    newWithClass: isa
				  object: self];

		if (data[i] != NULL && data[i] != DELETED) {
			block(data[i]->key, data[i]->object, &stop);
			[pool releaseObjects];
		}
	}

	[pool release];
}

- (void)replaceObjectsUsingBlock: (of_dictionary_replace_block_t)block
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	size_t i;
	BOOL stop = NO;
	unsigned long mutations2 = mutations;

	for (i = 0; i < size && !stop; i++) {
		if (mutations != mutations2)
			@throw [OFEnumerationMutationException
			    newWithClass: isa
				  object: self];

		if (data[i] != NULL && data[i] != DELETED) {
			id new = block(data[i]->key, data[i]->object, &stop);

			if (new == nil)
				@throw [OFInvalidArgumentException
				    newWithClass: isa

#ifdef NEED_OBJC_PROPERTIES_INIT
extern BOOL objc_properties_init();
#endif

static void
enumeration_mutation_handler(id obj)
{
	@throw [OFEnumerationMutationException newWithClass: [obj class]
						     object: obj];
}

#ifndef HAVE_OBJC_ENUMERATIONMUTATION
void
objc_enumerationMutation(id obj)
{
	enumeration_mutation_handler(obj);

#import "OFException.h"

/**
 * \brief An exception indicating that a mutation was detected during
 *        enumeration.
 */
@interface OFEnumerationMutationException: OFException
{
	id object;
}

/**
 * \param class_ The class of the object which caused the exception
 * \param object The object which was mutated during enumeration
 * \return A new enumeration mutation exception
 */
+ newWithClass: (Class)class_
	object: (id)object;

/**
 * Initializes an already allocated enumeration mutation exception.
 *
 * \param class_ The class of the object which caused the exception
 * \param object The object which was mutated during enumeration
 * \return An initialized enumeration mutation exception
 */
- initWithClass: (Class)class_
	 object: (id)object;

/**
 * \return The object which was mutated during enumeration
 */
- (id)object;
@end

 * file.
 */

#include "config.h"

#import "OFEnumerationMutationException.h"
#import "OFString.h"

#import "OFNotImplementedException.h"

@implementation OFEnumerationMutationException
+ newWithClass: (Class)class_
	object: (id)object
{
	return [[self alloc] initWithClass: class_
				    object: object];
}

- initWithClass: (Class)class_
{
	Class c = isa;
	[self release];
	@throw [OFNotImplementedException newWithClass: c
					      selector: _cmd];
}

- initWithClass: (Class)class_
	 object: (id)object_
{
	self = [super initWithClass: class_];

	@try {
		object = [object_ retain];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[object release];

	[super dealloc];
}

- (OFString*)description
{
	if (description != nil)
		return description;

	description = [[OFString alloc] initWithFormat:
	    @"Object of class %@ was mutated during enumeration!", inClass];

	return description;
}

- (id)object
{
	return object;
}
@end