ObjFW  Check-in [3ad1f2b268]

       OFMutableArray.m			\
       OFMutableDictionary.m		\
       OFMutableSet.m			\
       OFMutableString.m		\
       OFNull.m				\
       OFNumber.m			\
       OFObject.m			\
       OFObject+KeyValueCoding.m	\
       OFObject+Serialization.m		\
       OFOptionsParser.m		\
       ${OFPROCESS_M}			\
       OFRIPEMD160Hash.m		\
       OFRunLoop.m			\
       OFSeekableStream.m		\
       OFSet.m				\

	       OFThreadPool.m		\
	       threading.m

INCLUDES := ${SRCS:.m=.h}			\
	    OFCollection.h			\
	    OFHash.h				\
	    OFJSONRepresentation.h		\
	    OFKeyValueCoding.h			\
	    OFLocking.h				\
	    OFMessagePackRepresentation.h	\
	    OFSerialization.h			\
	    OFTLSSocket.h			\
	    ObjFW.h				\
	    autorelease.h			\
	    ${ATOMIC_H}				\

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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.
 */

@class OFString;

/*!
 * @protocol OFKeyValueCoding OFKeyValueCoding.h ObjFW/OFKeyValueCoding.h
 *
 * @brief A protocol for Key Value Coding.
 *
 * Key Value Coding makes it possible to access properties dynamically using
 * the interface described by this protocol.
 */
@protocol OFKeyValueCoding
/*!
 * @brief Return the value for the specified key
 *
 * @param key The key of the value to return
 * @return The value for the specified key
 */
- (id)valueForKey: (OFString*)key;

/*!
 * @brief This is called by @ref valueForKey: if the specified key does not
 *	  exist.
 *
 * By default, this throws an @ref OFUndefinedKeyException.
 *
 * @param key The undefined key of the value to return
 * @return The value for the specified undefined key
 */
- (id)valueForUndefinedKey: (OFString*)key;

/*!
 * @brief Set the value for the specified key
 *
 * @param value The value for the specified key
 * @param key The key of the value to set
 */
- (void)setValue: (id)value
	  forKey: (OFString*)key;

/*!
 * @brief This is called by @ref setValue:forKey: if the specified key does not
 *	  exist.
 *
 * By default, this throws an @ref OFUndefinedKeyException.
 *
 * @param value The value for the specified undefined key
 * @param key The undefined key of the value to set
 */
-  (void)setValue: (id)value
  forUndefinedKey: (OFString*)key;
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFObject.h"
#import "OFKeyValueCoding.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFObject_KeyValueCoding_reference;
#ifdef __cplusplus
}
#endif

@interface OFObject (KeyValueCoding) <OFKeyValueCoding>
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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"

#include <stdlib.h>
#include <ctype.h>

#import "OFObject.h"
#import "OFObject+KeyValueCoding.h"
#import "OFString.h"
#import "OFNull.h"

#import "OFOutOfMemoryException.h"
#import "OFUndefinedKeyException.h"

int _OFObject_KeyValueCoding_reference;

static bool
checkTypeEncoding(const char *typeEncoding, char returnType, ...)
{
	va_list args;
	char type;

	if (typeEncoding == NULL)
		return false;

	if (*typeEncoding++ != returnType)
		return false;

	while (*typeEncoding >= '0' && *typeEncoding <= '9')
		typeEncoding++;

	va_start(args, returnType);

	while ((type = va_arg(args, int)) != 0) {
		if (*typeEncoding++ != type)
			return false;

		while (*typeEncoding >= '0' && *typeEncoding <= '9')
			typeEncoding++;
	}

	if (*typeEncoding != '\0')
		return false;

	return true;
}

@implementation OFObject (KeyValueCoding)
- (id)valueForKey: (OFString*)key
{
	SEL selector = sel_registerName([key UTF8String]);
	const char *typeEncoding = [self typeEncodingForSelector: selector];

	if (!checkTypeEncoding(typeEncoding, '@', '@', ':', 0))
		return [self valueForUndefinedKey: key];

	return [self performSelector: selector];
}

- (id)valueForUndefinedKey: (OFString*)key
{
	@throw [OFUndefinedKeyException exceptionWithObject: self
							key: key];
}

- (void)setValue: (id)value
	  forKey: (OFString*)key
{
	char *name;
	size_t keyLength;
	SEL selector;
	const char *typeEncoding;
	id (*setter)(id, SEL, id);

	keyLength = [key UTF8StringLength];

	if (keyLength < 1) {
		[self	 setValue: value
		  forUndefinedKey: key];
		return;
	}

	if ((name = malloc(keyLength + 5)) == NULL)
		@throw [OFOutOfMemoryException
		    exceptionWithRequestedSize: keyLength + 5];

	memcpy(name, "set", 3);
	memcpy(name + 3, [key UTF8String], keyLength);
	memcpy(name + keyLength + 3, ":", 2);

	name[3] = toupper(name[3]);

	selector = sel_registerName(name);

	free(name);

	typeEncoding = [self typeEncodingForSelector: selector];

	if (!checkTypeEncoding(typeEncoding, 'v', '@', ':', '@', 0)) {
		[self	 setValue: value
		  forUndefinedKey: key];
		return;
	}

	setter = (id(*)(id, SEL, id))[self methodForSelector: selector];
	setter(self, selector, value);
}

-  (void)setValue: (id)value
  forUndefinedKey: (OFString*)key
{
	@throw [OFUndefinedKeyException exceptionWithObject: self
							key: key
						      value: value];
}
@end

extern uint32_t of_hash_seed;
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#import "OFObject+KeyValueCoding.h"
#import "OFObject+Serialization.h"

	    cStringWithEncoding: [OFSystemInfo native8BitEncoding]];
}

/* References for static linking */
void
_references_to_categories_of_OFObject(void)
{
	_OFObject_KeyValueCoding_reference = 1;
	_OFObject_Serialization_reference = 1;
}

@implementation OFObject
+ (void)load
{
#if !defined(OF_APPLE_RUNTIME) || defined(__OBJC2__)

       OFSeekFailedException.m				\
       OFSetOptionFailedException.m			\
       OFStatItemFailedException.m			\
       OFStillLockedException.m				\
       OFTruncatedDataException.m			\
       OFUnboundNamespaceException.m			\
       OFUnboundPrefixException.m			\
       OFUndefinedKeyException.m			\
       OFUnknownXMLEntityException.m			\
       OFUnlockFailedException.m			\
       OFUnsupportedProtocolException.m			\
       OFUnsupportedVersionException.m			\
       OFWriteFailedException.m				\
       ${USE_SRCS_SOCKETS}				\
       ${USE_SRCS_THREADS}

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFException.h"

/*!
 * @class OFUndefinedKeyException \
 *	  OFUndefinedKeyException.h ObjFW/OFUndefinedKeyException.h
 *
 * @brief An exception indicating that a key for Key Value Coding is undefined.
 */
@interface OFUndefinedKeyException: OFException
{
	id _object;
	OFString *_key;
	id _value;
}

/*!
 * The object on which the key is undefined.
 */
@property (readonly, retain) id object;

/*!
 * The key which is undefined.
 */
@property (readonly, copy) OFString *key;

/*!
 * The value for the undefined key
 */
@property (readonly, retain) id value;

/*!
 * @brief Creates a new, autoreleased undefined key exception.
 *
 * @param object The object on which the key is undefined
 * @param key The key which is undefined
 *
 * @return A new, autoreleased undefined key exception
 */
+ (instancetype)exceptionWithObject: (id)object
				key: (OFString*)key;

/*!
 * @brief Creates a new, autoreleased undefined key exception.
 *
 * @param object The object on which the key is undefined
 * @param key The key which is undefined
 * @param value The value for the undefined key
 *
 * @return A new, autoreleased undefined key exception
 */
+ (instancetype)exceptionWithObject: (id)object
				key: (OFString*)key
			      value: (id)value;

/*!
 * @brief Initializes an already allocated undefined key exception.
 *
 * @param object The object on which the key is undefined
 * @param key The key which is undefined
 *
 * @return An initialized undefined key exception
 */
- initWithObject: (id)object
	     key: (OFString*)key;

/*!
 * @brief Initializes an already allocated undefined key exception.
 *
 * @param object The object on which the key is undefined
 * @param key The key which is undefined
 * @param value The value for the undefined key
 *
 * @return An initialized undefined key exception
 */
- initWithObject: (id)object
	     key: (OFString*)key
	   value: (id)value;
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFUndefinedKeyException.h"
#import "OFString.h"

@implementation OFUndefinedKeyException
@synthesize object = _object, key = _key, value = _value;

+ (instancetype)exceptionWithObject: (id)object
				key: (OFString*)key
{
	return [[[self alloc] initWithObject: object
					 key: key] autorelease];
}

+ (instancetype)exceptionWithObject: (id)object
				key: (OFString*)key
			      value: (id)value
{
	return [[[self alloc] initWithObject: object
					 key: key
				       value: value] autorelease];
}

- init
{
	OF_INVALID_INIT_METHOD
}

- initWithObject: (id)object
	     key: (OFString*)key
{
	self = [super init];

	@try {
		_object = [object retain];
		_key = [key copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- initWithObject: (id)object
	     key: (OFString*)key
	   value: (id)value
{
	self = [super init];

	@try {
		_object = [object retain];
		_key = [key copy];
		_value = [value retain];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_object release];
	[_key release];
	[_value release];

	[super dealloc];
}

- (OFString*)description
{
	return [OFString stringWithFormat:
	    @"The key \"%@\" is undefined for an object of type %@!",
	    _key, [_object className]];
}
@end