/*
* Copyright (c) 2008 - 2009
* Jonathan Schleifer <js@webkeks.org>
*
* 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 included in
* the packaging of this file.
*/
#include "config.h"
#include <string.h>
#import "OFDictionary.h"
#import "OFIterator.h"
#import "OFAutoreleasePool.h"
#import "OFExceptions.h"
#import "OFMacros.h"
#define BUCKET_SIZE sizeof(struct of_dictionary_bucket)
/* References for static linking */
void _references_to_categories_of_OFDictionary()
{
_OFIterator_reference = 1;
}
@implementation OFDictionary
+ dictionary;
{
return [[[self alloc] init] autorelease];
}
+ dictionaryWithDictionary: (OFDictionary*)dict
{
return [[[self alloc] initWithDictionary: dict] autorelease];
}
+ dictionaryWithObject: (OFObject*)obj
forKey: (OFObject <OFCopying>*)key
{
return [[[self alloc] initWithObject: obj
forKey: key] autorelease];
}
+ dictionaryWithObjects: (OFArray*)objs
forKeys: (OFArray*)keys
{
return [[[self alloc] initWithObjects: objs
forKeys: keys] autorelease];
}
+ dictionaryWithKeysAndObjects: (OFObject <OFCopying>*)first, ...
{
id ret;
va_list args;
va_start(args, first);
ret = [[[self alloc] initWithKey: first
argList: args] autorelease];
va_end(args);
return ret;
}
- init
{
self = [super init];
size = 1;
@try {
data = [self allocMemoryWithSize: BUCKET_SIZE];
} @catch (OFException *e) {
/*
* We can't use [super dealloc] on OS X here. Compiler bug?
* Anyway, set size to 0 so that [self dealloc] works.
*/
size = 0;
[self dealloc];
@throw e;
}
data[0].key = nil;
return self;
}
- initWithDictionary: (OFDictionary*)dict
{
size_t i;
self = [super init];
if (dict == nil) {
Class c = isa;
size = 0;
[self dealloc];
@throw [OFInvalidArgumentException newWithClass: c
selector: _cmd];
}
@try {
data = [self allocMemoryForNItems: dict->size
withSize: BUCKET_SIZE];
} @catch (OFException *e) {
/*
* We can't use [super dealloc] on OS X here. Compiler bug?
* Anyway, we didn't do anything yet anyway, so [self dealloc]
* works.
*/
[self dealloc];
@throw e;
}
size = dict->size;
count = dict->count;
for (i = 0; i < size; i++) {
if (dict->data[i].key != nil) {
OFObject <OFCopying> *key;
@try {
key = [dict->data[i].key copy];
} @catch (OFException *e) {
[self dealloc];
@throw e;
}
@try {
[dict->data[i].object retain];
} @catch (OFException *e) {
[key release];
[self dealloc];
@throw e;
}
data[i].key = key;
data[i].object = dict->data[i].object;
data[i].hash = dict->data[i].hash;
} else
data[i].key = nil;
}
return self;
}
- initWithObject: (OFObject*)obj
forKey: (OFObject <OFCopying>*)key
{
self = [self init];
@try {
key = [key copy];
} @catch (OFException *e) {
[self dealloc];
@throw e;
}
@try {
[obj retain];
} @catch (OFException *e) {
[key release];
[self dealloc];
@throw e;
}
data[0].key = key;
data[0].object = obj;
data[0].hash = [key hash];
return self;
}
/* FIXME: Do it without resizing! */
- initWithObjects: (OFArray*)objs
forKeys: (OFArray*)keys
{
id *objs_carray, *keys_carray;
size_t objs_count, i;
const SEL sel = @selector(setObject:forKey:);
IMP set = [OFMutableDictionary instanceMethodForSelector: sel];
self = [self init];
objs_carray = [objs cArray];
keys_carray = [keys cArray];
objs_count = [objs count];
if (objs == nil || keys == nil || objs_count != [keys count]) {
Class c = isa;
[self dealloc];
@throw [OFInvalidArgumentException newWithClass: c
selector: _cmd];
}
@try {
for (i = 0; i < objs_count; i++)
set(self, sel, objs_carray[i], keys_carray[i]);
} @catch (OFException *e) {
[self dealloc];
@throw e;
}
return self;
}
- initWithKeysAndObjects: (OFObject <OFCopying>*)first, ...
{
id ret;
va_list args;
va_start(args, first);
ret = [self initWithKey: first
argList: args];
va_end(args);
return ret;
}
/* FIXME: Possible without resizing? */
- initWithKey: (OFObject <OFCopying>*)key
argList: (va_list)args
{
const SEL sel = @selector(setObject:forKey:);
IMP set = [OFMutableDictionary instanceMethodForSelector: sel];
self = [self init];
@try {
set(self, sel, va_arg(args, OFObject*), key);
while ((key = va_arg(args, OFObject <OFCopying>*)) != nil)
set(self, sel, va_arg(args, OFObject*), key);
} @catch (OFException *e) {
[self dealloc];
@throw e;
}
return self;
}
- (id)objectForKey: (OFObject <OFCopying>*)key
{
uint32_t i, hash;
if (key == nil)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
hash = [key hash];
for (i = hash & (size - 1); i < size && data[i].key != nil &&
![data[i].key isEqual: key]; i++);
if (data[i].key == nil)
return nil;
/* In case the last bucket is already used */
if (i >= size)
for (i = 0; i < size && data[i].key != nil &&
![data[i].key isEqual: key]; i++);
/* Key not in dictionary */
if (i >= size || ![data[i].key isEqual: key])
return nil;
return data[i].object;
}
- (size_t)count
{
return count;
}
- (id)copy
{
return [self retain];
}
- (id)mutableCopy
{
return [[OFMutableDictionary alloc] initWithDictionary: self];
}
- (BOOL)isEqual: (OFDictionary*)dict
{
size_t i;
if ([dict count] != count)
return NO;
for (i = 0; i < size; i++)
if (data[i].key != nil &&
![[dict objectForKey: data[i].key] isEqual: data[i].object])
return NO;
return YES;
}
- (void)dealloc
{
size_t i;
for (i = 0; i < size; i++) {
if (data[i].key != nil) {
[data[i].key release];
[data[i].object release];
}
}
[super dealloc];
}
- setObject: (OFObject*)obj
forKey: (OFObject <OFCopying>*)key
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
- removeObjectForKey: (OFObject*)key
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
- (uint32_t)hash
{
size_t i;
uint32_t hash;
OF_HASH_INIT(hash);
for (i = 0; i < size; i++) {
if (data[i].key != nil) {
uint32_t kh = [data[i].key hash];
OF_HASH_ADD(hash, kh >> 24);
OF_HASH_ADD(hash, (kh >> 16) & 0xFF);
OF_HASH_ADD(hash, (kh >> 8) & 0xFF);
OF_HASH_ADD(hash, kh & 0xFF);
OF_HASH_ADD(hash, data[i].hash >> 24);
OF_HASH_ADD(hash, (data[i].hash >> 16) & 0xFF);
OF_HASH_ADD(hash, (data[i].hash >> 8) & 0xFF);
OF_HASH_ADD(hash, data[i].hash & 0xFF);
}
}
OF_HASH_FINALIZE(hash);
return hash;
}
@end