ObjFW  Check-in [e41940c022]

OF_ASSUME_NONNULL_BEGIN

@interface OFDimensionValue: OFValue
{
	of_dimension_t _dimension;
}

- (instancetype)initWithDimension: (of_dimension_t)dimension;
@end

OF_ASSUME_NONNULL_END

OF_ASSUME_NONNULL_BEGIN

@interface OFNonretainedObjectValue: OFValue
{
	id _object;
}

- (instancetype)initWithNonretainedObject: (id)object;
@end

OF_ASSUME_NONNULL_END

OF_ASSUME_NONNULL_BEGIN

@interface OFPointValue: OFValue
{
	of_point_t _point;
}

- (instancetype)initWithPoint: (of_point_t)point;
@end

OF_ASSUME_NONNULL_END

OF_ASSUME_NONNULL_BEGIN

@interface OFPointerValue: OFValue
{
	void *_pointer;
}

- (instancetype)initWithPointer: (const void *)pointer;
@end

OF_ASSUME_NONNULL_END

OF_ASSUME_NONNULL_BEGIN

@interface OFRangeValue: OFValue
{
	of_range_t _range;
}

- (instancetype)initWithRange: (of_range_t)range;
@end

OF_ASSUME_NONNULL_END

OF_ASSUME_NONNULL_BEGIN

@interface OFRectangleValue: OFValue
{
	of_rectangle_t _rectangle;
}

- (instancetype)initWithRectangle: (of_rectangle_t)rectangle;
@end

OF_ASSUME_NONNULL_END

 * @param bytes The bytes containing the value
 * @param objCType The ObjC type encoding for the value
 * @return An initialized OFValue
 */
- (instancetype)initWithBytes: (const void *)bytes
		     objCType: (const char *)objCType;

/**
 * @brief Initializes an already allocated OFValue containing the specified
 *	  pointer.
 *
 * Only the raw value of the pointer is stored and no data will be copied.
 *
 * @param pointer The pointer the OFValue should contain
 * @return An initialized OFValue
 */
- (instancetype)initWithPointer: (const void *)pointer;

/**
 * @brief Initializes an already allocated OFValue containing the specified
 *	  non-retained object.
 *
 * The object is not retained, which makes this useful for storing objects in
 * collections without retaining them.
 *
 * @param object The object the OFValue should contain without retaining it
 * @return An initialized OFValue
 */
- (instancetype)initWithNonretainedObject: (id)object;

/**
 * @brief Initializes an already allocated OFValue containing the specified
 *	  range.
 *
 * @param range The range the OFValue should contain
 * @return An initialized OFValue
 */
- (instancetype)initWithRange: (of_range_t)range;

/**
 * @brief Initializes an already allocated OFValue containing the specified
 *	  point.
 *
 * @param point The point the OFValue should contain
 * @return An initialized OFValue
 */
- (instancetype)initWithPoint: (of_point_t)point;

/**
 * @brief Initializes an already allocated OFValue containing the specified
 *	  dimension.
 *
 * @param dimension The dimension the OFValue should contain
 * @return An initialized OFValue
 */
- (instancetype)initWithDimension: (of_dimension_t)dimension;

/**
 * @brief Initializes an already allocated OFValue containing the specified
 *	  rectangle.
 *
 * @param rectangle The rectangle the OFValue should contain
 * @return An initialized OFValue
 */
- (instancetype)initWithRectangle: (of_rectangle_t)rectangle;

/**
 * @brief Gets the value.
 *
 * If the specified size does not match, this raises an
 * @ref OFOutOfRangeException.
 *
 * @param value The buffer to copy the value into

#import "OFPointerValue.h"
#import "OFRangeValue.h"
#import "OFRectangleValue.h"
#import "OFString.h"

#import "OFOutOfMemoryException.h"

static struct {
	Class isa;
} placeholder;

@interface OFValuePlaceholder: OFValue
@end

@implementation OFValuePlaceholder
- (instancetype)initWithBytes: (const void *)bytes
		     objCType: (const char *)objCType
{
	return (id)[[OFBytesValue alloc] initWithBytes: bytes
					      objCType: objCType];
}

- (instancetype)initWithPointer: (const void *)pointer
{
	return (id)[[OFPointerValue alloc] initWithPointer: pointer];
}

- (instancetype)initWithNonretainedObject: (id)object
{
	return (id)[[OFNonretainedObjectValue alloc]
	    initWithNonretainedObject: object];
}

- (instancetype)initWithRange: (of_range_t)range
{
	return (id)[[OFRangeValue alloc] initWithRange: range];
}

- (instancetype)initWithPoint: (of_point_t)point
{
	return (id)[[OFPointValue alloc] initWithPoint: point];
}

- (instancetype)initWithDimension: (of_dimension_t)dimension
{
	return (id)[[OFDimensionValue alloc] initWithDimension: dimension];
}

- (instancetype)initWithRectangle: (of_rectangle_t)rectangle
{
	return (id)[[OFRectangleValue alloc] initWithRectangle: rectangle];
}
@end

@implementation OFValue
+ (void)initialize
{
	if (self == [OFValue class])
		placeholder.isa = [OFValuePlaceholder class];
}

+ (instancetype)alloc
{
	if (self == [OFValue class])
		return (id)&placeholder;
		return [OFBytesValue alloc];

	return [super alloc];
}

+ (instancetype)valueWithBytes: (const void *)bytes
		      objCType: (const char *)objCType
{
	return [[[self alloc] initWithBytes: bytes
				   objCType: objCType] autorelease];
	return [[[OFBytesValue alloc] initWithBytes: bytes
					   objCType: objCType] autorelease];
}

+ (instancetype)valueWithPointer: (const void *)pointer
{
	return [[[self alloc] initWithPointer: pointer] autorelease];
	return [[[OFPointerValue alloc] initWithPointer: pointer] autorelease];
}

+ (instancetype)valueWithNonretainedObject: (id)object
{
	return [[[OFNonretainedObjectValue alloc]
	return [[[self alloc] initWithNonretainedObject: object] autorelease];
	    initWithNonretainedObject: object] autorelease];
}

+ (instancetype)valueWithRange: (of_range_t)range
{
	return [[[self alloc] initWithRange: range] autorelease];
	return [[[OFRangeValue alloc] initWithRange: range] autorelease];
}

+ (instancetype)valueWithPoint: (of_point_t)point
{
	return [[[self alloc] initWithPoint: point] autorelease];
	return [[[OFPointValue alloc] initWithPoint: point] autorelease];
}

+ (instancetype)valueWithDimension: (of_dimension_t)dimension
{
	return [[[OFDimensionValue alloc]
	return [[[self alloc] initWithDimension: dimension] autorelease];
	    initWithDimension: dimension] autorelease];
}

+ (instancetype)valueWithRectangle: (of_rectangle_t)rectangle
{
	return [[[OFRectangleValue alloc]
	return [[[self alloc] initWithRectangle: rectangle] autorelease];
	    initWithRectangle: rectangle] autorelease];
}

- (instancetype)initWithBytes: (const void *)bytes
		     objCType: (const char *)objCType
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithPointer: (const void *)pointer
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithNonretainedObject: (id)object
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithRange: (of_range_t)range
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithPoint: (of_point_t)point
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithDimension: (of_dimension_t)dimension
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithRectangle: (of_rectangle_t)rectangle
{
	OF_INVALID_INIT_METHOD
}

- (bool)isEqual: (id)object
{
	const char *objCType;
	size_t size;