ObjFW  Check-in [e2d0c876b4]

#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"

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

@interface OFDictionaryPlaceholder: OFDictionary
@end

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

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

@interface OFURLQueryPartAllowedCharacterSet: OFCharacterSet
+ (OFCharacterSet *)URLQueryPartAllowedCharacterSet;
@end

@implementation OFDictionaryPlaceholder
- (instancetype)init

- (OFEnumerator *)keyEnumerator
{
	OF_UNRECOGNIZED_SELECTOR
}

- (OFEnumerator *)objectEnumerator
{
	return [[[OFDictionaryObjectEnumerator alloc]
	    initWithDictionary: self] autorelease];
}

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

	[data makeImmutable];

	objc_autoreleasePoolPop(pool);

	return data;
}
@end

@implementation OFDictionaryObjectEnumerator
- (instancetype)initWithDictionary: (OFDictionary *)dictionary
{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();

		_dictionary = [dictionary retain];
		_keyEnumerator = [[_dictionary keyEnumerator] retain];

		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_dictionary release];
	[_keyEnumerator release];

	[super dealloc];
}

- (id)nextObject
{
	id key = [_keyEnumerator nextObject];
	id object;

	if (key == nil)
		return nil;

	if ((object = [_dictionary objectForKey: key]) == nil)
		@throw [OFInvalidArgumentException exception];

	return object;
}
@end