/*
* Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
*
* 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.
*/
#import "OFValue.h"
#import "OFBytesValue.h"
#import "OFMethodSignature.h"
#import "OFNonretainedObjectValue.h"
#import "OFPointValue.h"
#import "OFPointerValue.h"
#import "OFRangeValue.h"
#import "OFRectValue.h"
#import "OFSizeValue.h"
#import "OFString.h"
#import "OFOutOfMemoryException.h"
@implementation OFValue
+ (instancetype)alloc
{
if (self == [OFValue class])
return [OFBytesValue alloc];
return [super alloc];
}
+ (instancetype)valueWithBytes: (const void *)bytes
objCType: (const char *)objCType
{
return [[[OFBytesValue alloc] initWithBytes: bytes
objCType: objCType] autorelease];
}
+ (instancetype)valueWithPointer: (const void *)pointer
{
return [[[OFPointerValue alloc] initWithPointer: pointer] autorelease];
}
+ (instancetype)valueWithNonretainedObject: (id)object
{
return [[[OFNonretainedObjectValue alloc]
initWithNonretainedObject: object] autorelease];
}
+ (instancetype)valueWithRange: (OFRange)range
{
return [[[OFRangeValue alloc] initWithRange: range] autorelease];
}
+ (instancetype)valueWithPoint: (OFPoint)point
{
return [[[OFPointValue alloc] initWithPoint: point] autorelease];
}
+ (instancetype)valueWithSize: (OFSize)size
{
return [[[OFSizeValue alloc] initWithSize: size] autorelease];
}
+ (instancetype)valueWithRect: (OFRect)rect
{
return [[[OFRectValue alloc] initWithRect: rect] autorelease];
}
- (instancetype)initWithBytes: (const void *)bytes
objCType: (const char *)objCType
{
OF_INVALID_INIT_METHOD
}
- (bool)isEqual: (id)object
{
const char *objCType;
size_t size;
void *value, *otherValue;
bool ret;
if (object == self)
return true;
if (![object isKindOfClass: [OFValue class]])
return false;
objCType = self.objCType;
if (strcmp([object objCType], objCType) != 0)
return false;
size = OFSizeOfTypeEncoding(objCType);
value = OFAllocMemory(1, size);
@try {
otherValue = OFAllocMemory(1, size);
} @catch (id e) {
OFFreeMemory(value);
@throw e;
}
@try {
[self getValue: value size: size];
[object getValue: otherValue size: size];
ret = (memcmp(value, otherValue, size) == 0);
} @finally {
OFFreeMemory(value);
OFFreeMemory(otherValue);
}
return ret;
}
- (unsigned long)hash
{
size_t size = OFSizeOfTypeEncoding(self.objCType);
unsigned char *value;
unsigned long hash;
value = OFAllocMemory(1, size);
@try {
[self getValue: value size: size];
OFHashInit(&hash);
for (size_t i = 0; i < size; i++)
OFHashAdd(&hash, value[i]);
OFHashFinalize(&hash);
} @finally {
OFFreeMemory(value);
}
return hash;
}
- (id)copy
{
return [self retain];
}
- (const char *)objCType
{
OF_UNRECOGNIZED_SELECTOR
}
- (void)getValue: (void *)value size: (size_t)size
{
OF_UNRECOGNIZED_SELECTOR
}
- (void *)pointerValue
{
void *ret;
[self getValue: &ret size: sizeof(ret)];
return ret;
}
- (id)nonretainedObjectValue
{
id ret;
[self getValue: &ret size: sizeof(ret)];
return ret;
}
- (OFRange)rangeValue
{
OFRange ret;
[self getValue: &ret size: sizeof(ret)];
return ret;
}
- (OFPoint)pointValue
{
OFPoint ret;
[self getValue: &ret size: sizeof(ret)];
return ret;
}
- (OFSize)sizeValue
{
OFSize ret;
[self getValue: &ret size: sizeof(ret)];
return ret;
}
- (OFRect)rectValue
{
OFRect ret;
[self getValue: &ret size: sizeof(ret)];
return ret;
}
- (OFString *)description
{
OFMutableString *ret =
[OFMutableString stringWithString: @"<OFValue: "];
size_t size = OFSizeOfTypeEncoding(self.objCType);
unsigned char *value;
value = OFAllocMemory(1, size);
@try {
[self getValue: value size: size];
for (size_t i = 0; i < size; i++) {
if (i > 0)
[ret appendString: @" "];
[ret appendFormat: @"%02x", value[i]];
}
} @finally {
OFFreeMemory(value);
}
[ret appendString: @">"];
[ret makeImmutable];
return ret;
}
@end