ObjFW  Diff

/*
 * 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"

#include <stdlib.h>

#include <assert.h>

#import "OFDictionary.h"
#import "OFArray.h"
#import "OFCharacterSet.h"
#import "OFData.h"
#import "OFEnumerator.h"
#import "OFMapTableDictionary.h"
#import "OFString.h"
#import "OFXMLElement.h"

#import "OFInvalidArgumentException.h"
#import "OFOutOfRangeException.h"
#import "OFUndefinedKeyException.h"

static struct {
	Class isa;
} placeholder;

static OFCharacterSet *URIQueryPartAllowedCharacterSet = nil;

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

@interface OFDictionaryPlaceholder: OFDictionary
@end

OF_DIRECT_MEMBERS
@interface OFDictionaryObjectEnumerator: OFEnumerator
{
	OFDictionary *_dictionary;
	OFEnumerator *_keyEnumerator;
}

- (instancetype)initWithDictionary: (OFDictionary *)dictionary;
@end

OF_DIRECT_MEMBERS
@interface OFURIQueryPartAllowedCharacterSet: OFCharacterSet
+ (OFCharacterSet *)URIQueryPartAllowedCharacterSet;
@end

@implementation OFDictionaryPlaceholder
- (instancetype)init
{
	return (id)[[OFMapTableDictionary alloc] init];
}

- (instancetype)initWithDictionary: (OFDictionary *)dictionary

- (instancetype)initWithKey: (id <OFCopying>)firstKey
		  arguments: (va_list)arguments
{
	return (id)[[OFMapTableDictionary alloc] initWithKey: firstKey
						   arguments: arguments];
}

- (instancetype)initWithSerialization: (OFXMLElement *)element
{
	return (id)[[OFMapTableDictionary alloc]
	    initWithSerialization: element];
}

- (instancetype)retain
{
	return self;
}

- (instancetype)autorelease
{
	return self;
}

- (void)release
{
}

- (void)dealloc
{
	OF_DEALLOC_UNSUPPORTED
}
@end

@implementation OFURIQueryPartAllowedCharacterSet
+ (void)initialize
{
	if (self != [OFURIQueryPartAllowedCharacterSet class])
		return;

	URIQueryPartAllowedCharacterSet =
	    [[OFURIQueryPartAllowedCharacterSet alloc] init];
}

+ (OFCharacterSet *)URIQueryPartAllowedCharacterSet
{
	return URIQueryPartAllowedCharacterSet;
}

- (instancetype)autorelease
{
	return self;
}

- (instancetype)retain
{
	return self;
}

- (void)release
{
}

- (unsigned int)retainCount
{
	return OFMaxRetainCount;
}

- (bool)characterIsMember: (OFUnichar)character
{
	if (character < CHAR_MAX && OFASCIIIsAlnum(character))
		return true;

	switch (character) {
	case '-':
	case '.':
	case '_':
	case '~':
	case '!':
	case '$':
	case '\'':
	case '(':
	case ')':
	case '*':
	case '+':
	case ',':
	case ';':
		return true;
	default:
		return false;
	}
}
@end

@implementation OFDictionary
+ (void)initialize
{
	if (self == [OFDictionary class])
		placeholder.isa = [OFDictionaryPlaceholder class];

	va_end(arguments);

	return ret;
}

- (instancetype)initWithKey: (id)firstKey arguments: (va_list)arguments
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithSerialization: (OFXMLElement *)element
{
	OF_INVALID_INIT_METHOD
}

- (id)objectForKey: (id)key
{
	OF_UNRECOGNIZED_SELECTOR
}

	    initWithDictionary: self] autorelease];
}

- (int)countByEnumeratingWithState: (OFFastEnumerationState *)state
			   objects: (id *)objects
			     count: (int)count
{

	OFEnumerator *enumerator;
	int i;

	memcpy(&enumerator, state->extra, sizeof(enumerator));

	if (enumerator == nil) {
		enumerator = [self keyEnumerator];
		memcpy(state->extra, &enumerator, sizeof(enumerator));
	}

	state->itemsPtr = objects;
	state->mutationsPtr = (unsigned long *)self;

	for (i = 0; i < count; i++) {
		id object = [enumerator nextObject];

		if (object == nil)
			return i;

	[ret makeImmutable];

	objc_autoreleasePoolPop(pool);

	return ret;
}

- (OFXMLElement *)XMLElementBySerializing
{
	void *pool = objc_autoreleasePoolPush();
	OFXMLElement *element;
	OFEnumerator *keyEnumerator, *objectEnumerator;
	id <OFSerialization> key, object;

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

	keyEnumerator = [self keyEnumerator];
	objectEnumerator = [self objectEnumerator];
	while ((key = [keyEnumerator nextObject]) != nil &&
	       (object = [objectEnumerator nextObject]) != nil) {
		void *pool2 = objc_autoreleasePoolPush();
		OFXMLElement *keyElement, *objectElement;

		keyElement = [OFXMLElement
		    elementWithName: @"key"
			  namespace: OFSerializationNS];
		[keyElement addChild: key.XMLElementBySerializing];

		objectElement = [OFXMLElement
		    elementWithName: @"object"
			  namespace: OFSerializationNS];
		[objectElement addChild: object.XMLElementBySerializing];

		[element addChild: keyElement];
		[element addChild: objectElement];

		objc_autoreleasePoolPop(pool2);
	}

	[element retain];

	objc_autoreleasePoolPop(pool);

	return [element autorelease];
}

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

- (OFString *)JSONRepresentationWithOptions:
    (OFJSONRepresentationOptions)options

		child = object.messagePackRepresentation;
		[data addItems: child.items count: child.count];

		objc_autoreleasePoolPop(pool2);
	}

	assert(i == count);

	[data makeImmutable];

	objc_autoreleasePoolPop(pool);

	return data;
}