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/*
* Copyright (c) 2008-2022 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.
*/
#include "config.h"
#import "OFNull.h"
#import "OFString.h"
#import "OFXMLElement.h"
#import "OFData.h"
#import "OFInvalidArgumentException.h"
@interface OFNull ()
- (OFString *)
of_JSONRepresentationWithOptions: (OFJSONRepresentationOptions)options
depth: (size_t)depth;
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/*
* Copyright (c) 2008-2024 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.
*/
#include "config.h"
#import "OFNull.h"
#import "OFData.h"
#import "OFString.h"
#import "OFInvalidArgumentException.h"
@interface OFNull ()
- (OFString *)
of_JSONRepresentationWithOptions: (OFJSONRepresentationOptions)options
depth: (size_t)depth;
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}
+ (OFNull *)null
{
return null;
}
- (instancetype)initWithSerialization: (OFXMLElement *)element
{
void *pool;
[self release];
pool = objc_autoreleasePoolPush();
if (![element.name isEqual: self.className] ||
![element.namespace isEqual: OFSerializationNS])
@throw [OFInvalidArgumentException exception];
objc_autoreleasePoolPop(pool);
return [OFNull null];
}
- (OFXMLElement *)XMLElementBySerializing
{
void *pool = objc_autoreleasePoolPush();
OFXMLElement *element;
element = [OFXMLElement elementWithName: self.className
namespace: OFSerializationNS];
[element retain];
objc_autoreleasePoolPop(pool);
return [element autorelease];
}
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}
+ (OFNull *)null
{
return null;
}
- (OFString *)description
{
return @"<null>";
}
- (id)copy
{
return self;
}
- (OFString *)JSONRepresentation
{
return [self of_JSONRepresentationWithOptions: 0 depth: 0];
}
- (OFString *)JSONRepresentationWithOptions:
(OFJSONRepresentationOptions)options
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- (OFData *)ASN1DERRepresentation
{
const unsigned char bytes[] = { OFASN1TagNumberNull, 0 };
return [OFData dataWithItems: bytes count: sizeof(bytes)];
}
- (instancetype)autorelease
{
return self;
}
- (instancetype)retain
{
return self;
}
- (void)release
{
}
- (unsigned int)retainCount
{
return OFMaxRetainCount;
}
- (void)dealloc
{
OF_DEALLOC_UNSUPPORTED
}
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- (OFData *)ASN1DERRepresentation
{
const unsigned char bytes[] = { OFASN1TagNumberNull, 0 };
return [OFData dataWithItems: bytes count: sizeof(bytes)];
}
OF_SINGLETON_METHODS
@end
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