ObjFW  Diff

#import "OFOutOfRangeException.h"

static struct {
	Class isa;
} placeholder;

@interface OFArray ()
- (OFString *)
    of_JSONRepresentationWithOptions: (OFJSONRepresentationOptions)options
			       depth: (size_t)depth;
@end

@interface OFPlaceholderArray: OFArray
@end

@implementation OFPlaceholderArray
- (instancetype)init

}

- (size_t)count
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)getObjects: (id *)buffer inRange: (OFRange)range
{
	for (size_t i = 0; i < range.length; i++)
		buffer[i] = [self objectAtIndex: range.location + i];
}

- (id const *)objects
{
	size_t count = self.count;
	id *buffer = OFAllocMemory(count, sizeof(id));

	@try {
		[self getObjects: buffer inRange: OFRangeMake(0, count)];

		return [[OFData dataWithItemsNoCopy: buffer
					      count: count
					   itemSize: sizeof(id)
				       freeWhenDone: true] items];
	} @catch (id e) {
		OFFreeMemory(buffer);
		@throw e;
	}
}

- (id)copy
{
	return [self retain];

}

- (size_t)indexOfObject: (id)object
{
	size_t i = 0;

	if (object == nil)
		return OFNotFound;

	for (id objectIter in self) {
		if ([objectIter isEqual: object])
			return i;

		i++;
	}

	return OFNotFound;
}

- (size_t)indexOfObjectIdenticalTo: (id)object
{
	size_t i = 0;

	if (object == nil)
		return OFNotFound;

	for (id objectIter in self) {
		if (objectIter == object)
			return i;

		i++;
	}

	return OFNotFound;
}

- (bool)containsObject: (id)object
{
	return ([self indexOfObject: object] != OFNotFound);
}

- (bool)containsObjectIdenticalTo: (id)object
{
	return ([self indexOfObjectIdenticalTo: object] != OFNotFound);
}

- (id)firstObject
{
	if (self.count > 0)
		return [self objectAtIndex: 0];

	return nil;
}

- (id)lastObject
{
	size_t count = self.count;

	if (count > 0)
		return [self objectAtIndex: count - 1];

	return nil;
}

- (OFArray *)objectsInRange: (OFRange)range
{
	OFArray *ret;
	id *buffer;

	if (range.length > SIZE_MAX - range.location ||
	    range.location + range.length < self.count)
		@throw [OFOutOfRangeException exception];

	if (![self isKindOfClass: [OFMutableArray class]])
		return [OFSubarray arrayWithArray: self range: range];

	buffer = OFAllocMemory(range.length, sizeof(*buffer));
	@try {
		[self getObjects: buffer inRange: range];

		ret = [OFArray arrayWithObjects: buffer count: range.length];
	} @finally {
		OFFreeMemory(buffer);
	}

	return ret;
}

- (OFString *)componentsJoinedByString: (OFString *)separator
{
	return [self componentsJoinedByString: separator
				usingSelector: @selector(description)
				      options: 0];
}

- (OFString *)componentsJoinedByString: (OFString *)separator
			       options: (OFArrayJoinOptions)options
{
	return [self componentsJoinedByString: separator
				usingSelector: @selector(description)
				      options: options];
}

- (OFString *)componentsJoinedByString: (OFString *)separator
			 usingSelector: (SEL)selector
{
	return [self componentsJoinedByString: separator
				usingSelector: selector
				      options: 0];
}

- (OFString *)componentsJoinedByString: (OFString *)separator
			 usingSelector: (SEL)selector
			       options: (OFArrayJoinOptions)options
{
	OFMutableString *ret;

	if (separator == nil)
		@throw [OFInvalidArgumentException exception];

	if (self.count == 0)

			@throw [OFInvalidArgumentException exception];

		return component;
	}

	ret = [OFMutableString string];

	if (options & OFArraySkipEmptyComponents) {
		for (id object in self) {
			void *pool = objc_autoreleasePoolPush();
			OFString *component =
			    [object performSelector: selector];

			if (component == nil)
				@throw [OFInvalidArgumentException exception];

			return false;

	return true;
}

- (unsigned long)hash
{
	unsigned long hash;

	OFHashInit(&hash);

	for (id object in self)
		OFHashAddHash(&hash, [object hash]);

	OFHashFinalize(&hash);

	return hash;
}

- (OFString *)description
{
	void *pool;

- (OFXMLElement *)XMLElementBySerializing
{
	void *pool = objc_autoreleasePoolPush();
	OFXMLElement *element;

	if ([self isKindOfClass: [OFMutableArray class]])
		element = [OFXMLElement elementWithName: @"OFMutableArray"
					      namespace: OFSerializationNS];
	else
		element = [OFXMLElement elementWithName: @"OFArray"
					      namespace: OFSerializationNS];

	for (id <OFSerialization> object in self) {
		void *pool2 = objc_autoreleasePoolPush();

		[element addChild: object.XMLElementBySerializing];

		objc_autoreleasePoolPop(pool2);

}

- (OFString *)JSONRepresentation
{
	return [self of_JSONRepresentationWithOptions: 0 depth: 0];
}

- (OFString *)JSONRepresentationWithOptions:
    (OFJSONRepresentationOptions)options
{
	return [self of_JSONRepresentationWithOptions: options depth: 0];
}

- (OFString *)
    of_JSONRepresentationWithOptions: (OFJSONRepresentationOptions)options
			       depth: (size_t)depth
{
	OFMutableString *JSON = [OFMutableString stringWithString: @"["];
	void *pool = objc_autoreleasePoolPush();
	size_t i, count = self.count;

	if (options & OFJSONRepresentationOptionPretty) {
		OFMutableString *indentation = [OFMutableString string];

		for (i = 0; i < depth; i++)
			[indentation appendString: @"\t"];

		[JSON appendString: @"\n"];

	count = self.count;

	if (count <= 15) {
		uint8_t tmp = 0x90 | ((uint8_t)count & 0xF);
		[data addItem: &tmp];
	} else if (count <= UINT16_MAX) {
		uint8_t type = 0xDC;
		uint16_t tmp = OFToBigEndian16((uint16_t)count);

		[data addItem: &type];
		[data addItems: &tmp count: sizeof(tmp)];
	} else if (count <= UINT32_MAX) {
		uint8_t type = 0xDD;
		uint32_t tmp = OFToBigEndian32((uint32_t)count);

		[data addItem: &type];
		[data addItems: &tmp count: sizeof(tmp)];
	} else
		@throw [OFOutOfRangeException exception];

	pool = objc_autoreleasePoolPush();

	OFMutableArray *new = [[self mutableCopy] autorelease];
	[new sort];
	[new makeImmutable];
	return new;
}

- (OFArray *)sortedArrayUsingSelector: (SEL)selector
			      options: (OFArraySortOptions)options
{
	OFMutableArray *new = [[self mutableCopy] autorelease];
	[new sortUsingSelector: selector options: options];
	[new makeImmutable];
	return new;
}

#ifdef OF_HAVE_BLOCKS
- (OFArray *)sortedArrayUsingComparator: (OFComparator)comparator
				options: (OFArraySortOptions)options
{
	OFMutableArray *new = [[self mutableCopy] autorelease];
	[new sortUsingComparator: comparator options: options];
	[new makeImmutable];
	return new;
}
#endif

- (OFArray *)reversedArray
{
	OFMutableArray *new = [[self mutableCopy] autorelease];
	[new reverse];
	[new makeImmutable];
	return new;
}

- (int)countByEnumeratingWithState: (OFFastEnumerationState *)state
			   objects: (id *)objects
			     count: (int)count
{
	OFRange range = OFRangeMake(state->state, count);

	if (range.length > SIZE_MAX - range.location)
		@throw [OFOutOfRangeException exception];

	if (range.location + range.length > self.count)
		range.length = self.count - range.location;

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

#ifdef OF_HAVE_BLOCKS
- (void)enumerateObjectsUsingBlock: (OFArrayEnumerationBlock)block
{
	size_t i = 0;
	bool stop = false;

	for (id object in self) {
		block(object, i++, &stop);

	OFMutableArray *ret = [[self mutableCopy] autorelease];
	[ret removeObject: object];
	[ret makeImmutable];
	return ret;
}

#ifdef OF_HAVE_BLOCKS
- (OFArray *)mappedArrayUsingBlock: (OFArrayMapBlock)block
{
	OFArray *ret;
	size_t count = self.count;
	id *tmp = OFAllocMemory(count, sizeof(id));

	@try {
		[self enumerateObjectsUsingBlock: ^ (id object, size_t idx,
		    bool *stop) {
			tmp[idx] = block(object, idx);
		}];

		ret = [OFArray arrayWithObjects: tmp count: count];
	} @finally {
		OFFreeMemory(tmp);
	}

	return ret;
}

- (OFArray *)filteredArrayUsingBlock: (OFArrayFilterBlock)block
{
	OFArray *ret;
	size_t count = self.count;
	id *tmp = OFAllocMemory(count, sizeof(id));

	@try {
		__block size_t i = 0;

		[self enumerateObjectsUsingBlock: ^ (id object, size_t idx,
		    bool *stop) {
			if (block(object, idx))
				tmp[i++] = object;
		}];

		ret = [OFArray arrayWithObjects: tmp count: i];
	} @finally {
		OFFreeMemory(tmp);
	}

	return ret;
}

- (id)foldUsingBlock: (OFArrayFoldBlock)block
{
	size_t count = self.count;
	__block id current;

	if (count == 0)
		return nil;
	if (count == 1)