/*
* Copyright (c) 2008-2023 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 <stdarg.h>
#import "OFAdjacentArray.h"
#import "OFAdjacentSubarray.h"
#import "OFData.h"
#import "OFMutableAdjacentArray.h"
#import "OFString.h"
#import "OFEnumerationMutationException.h"
#import "OFInvalidArgumentException.h"
#import "OFOutOfRangeException.h"
@implementation OFAdjacentArray
- (instancetype)init
{
self = [super init];
@try {
_array = [[OFMutableData alloc] initWithItemSize: sizeof(id)];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (instancetype)initWithObject: (id)object
{
self = [self init];
@try {
if (object == nil)
@throw [OFInvalidArgumentException exception];
[_array addItem: &object];
[object retain];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (instancetype)initWithObject: (id)firstObject arguments: (va_list)arguments
{
self = [self init];
@try {
id object;
[_array addItem: &firstObject];
[firstObject retain];
while ((object = va_arg(arguments, id)) != nil) {
[_array addItem: &object];
[object retain];
}
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (instancetype)initWithArray: (OFArray *)array
{
id const *objects;
size_t count;
self = [super init];
if (array == nil)
return self;
@try {
objects = array.objects;
count = array.count;
_array = [[OFMutableData alloc] initWithItemSize: sizeof(id)
capacity: count];
} @catch (id e) {
[self release];
@throw e;
}
@try {
for (size_t i = 0; i < count; i++)
[objects[i] retain];
[_array addItems: objects count: count];
} @catch (id e) {
for (size_t i = 0; i < count; i++)
[objects[i] release];
/* Prevent double-release of objects */
[_array release];
_array = nil;
[self release];
@throw e;
}
return self;
}
- (instancetype)initWithObjects: (id const *)objects count: (size_t)count
{
self = [self init];
@try {
bool ok = true;
for (size_t i = 0; i < count; i++) {
if (objects[i] == nil)
ok = false;
[objects[i] retain];
}
if (!ok)
@throw [OFInvalidArgumentException exception];
[_array addItems: objects count: count];
} @catch (id e) {
for (size_t i = 0; i < count; i++)
[objects[i] release];
[self release];
@throw e;
}
return self;
}
- (size_t)count
{
return _array.count;
}
- (id const *)objects
{
return _array.items;
}
- (id)objectAtIndex: (size_t)idx
{
return *((id *)[_array itemAtIndex: idx]);
}
- (id)objectAtIndexedSubscript: (size_t)idx
{
return *((id *)[_array itemAtIndex: idx]);
}
- (void)getObjects: (id *)buffer inRange: (OFRange)range
{
id const *objects = _array.items;
size_t count = _array.count;
if (range.length > SIZE_MAX - range.location ||
range.location + range.length > count)
@throw [OFOutOfRangeException exception];
for (size_t i = 0; i < range.length; i++)
buffer[i] = objects[range.location + i];
}
- (size_t)indexOfObject: (id)object
{
id const *objects;
size_t count;
if (object == nil)
return OFNotFound;
objects = _array.items;
count = _array.count;
for (size_t i = 0; i < count; i++)
if ([objects[i] isEqual: object])
return i;
return OFNotFound;
}
- (size_t)indexOfObjectIdenticalTo: (id)object
{
id const *objects;
size_t count;
if (object == nil)
return OFNotFound;
objects = _array.items;
count = _array.count;
for (size_t i = 0; i < count; i++)
if (objects[i] == object)
return i;
return OFNotFound;
}
- (OFArray *)objectsInRange: (OFRange)range
{
if (range.length > SIZE_MAX - range.location ||
range.location + range.length > _array.count)
@throw [OFOutOfRangeException exception];
if ([self isKindOfClass: [OFMutableArray class]])
return [OFArray
arrayWithObjects: (id *)_array.items + range.location
count: range.length];
return [[[OFAdjacentSubarray alloc] initWithArray: self
range: range] autorelease];
}
- (bool)isEqual: (id)object
{
OFArray *otherArray;
id const *objects, *otherObjects;
size_t count;
if (object == self)
return true;
if (![object isKindOfClass: [OFAdjacentArray class]] &&
![object isKindOfClass: [OFMutableAdjacentArray class]])
return [super isEqual: object];
otherArray = object;
count = _array.count;
if (count != otherArray.count)
return false;
objects = _array.items;
otherObjects = otherArray.objects;
for (size_t i = 0; i < count; i++)
if (![objects[i] isEqual: otherObjects[i]])
return false;
return true;
}
- (unsigned long)hash
{
id const *objects = _array.items;
size_t count = _array.count;
unsigned long hash;
OFHashInit(&hash);
for (size_t i = 0; i < count; i++)
OFHashAddHash(&hash, [objects[i] hash]);
OFHashFinalize(&hash);
return hash;
}
- (int)countByEnumeratingWithState: (OFFastEnumerationState *)state
objects: (id *)objects
count: (int)count_
{
static unsigned long dummyMutations;
size_t count = _array.count;
if (count > INT_MAX)
/*
* Use the implementation from OFArray, which is slower, but can
* enumerate in chunks.
*/
return [super countByEnumeratingWithState: state
objects: objects
count: count_];
if (state->state >= count)
return 0;
state->state = (unsigned long)count;
state->itemsPtr = (id *)_array.items;
state->mutationsPtr = &dummyMutations;
return (int)count;
}
#ifdef OF_HAVE_BLOCKS
- (void)enumerateObjectsUsingBlock: (OFArrayEnumerationBlock)block
{
id const *objects = _array.items;
size_t count = _array.count;
bool stop = false;
for (size_t i = 0; i < count && !stop; i++)
block(objects[i], i, &stop);
}
#endif
- (void)dealloc
{
id const *objects = _array.items;
size_t count = _array.count;
for (size_t i = 0; i < count; i++)
[objects[i] release];
[_array release];
[super dealloc];
}
@end