/*
* Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3.0 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* version 3.0 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3.0 along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#import "OFMutableArray.h"
#import "OFConcreteMutableArray.h"
#import "OFEnumerationMutationException.h"
#import "OFInvalidArgumentException.h"
#import "OFOutOfRangeException.h"
static struct {
Class isa;
} placeholder;
@interface OFPlaceholderMutableArray: OFMutableArray
@end
static void
quicksort(OFMutableArray *array, size_t left, size_t right,
OFCompareFunction compare, void *context, OFArraySortOptions options)
{
OFComparisonResult ascending, descending;
if (options & OFArraySortDescending) {
ascending = OFOrderedDescending;
descending = OFOrderedAscending;
} else {
ascending = OFOrderedAscending;
descending = OFOrderedDescending;
}
while (left < right) {
size_t i = left;
size_t j = right - 1;
id pivot = [array objectAtIndex: right];
do {
while (compare([array objectAtIndex: i], pivot,
context) != descending && i < right)
i++;
while (compare([array objectAtIndex: j], pivot,
context) != ascending && j > left)
j--;
if (i < j)
[array exchangeObjectAtIndex: i
withObjectAtIndex: j];
} while (i < j);
if (compare([array objectAtIndex: i], pivot, context) ==
descending)
[array exchangeObjectAtIndex: i
withObjectAtIndex: right];
if (i > 0)
quicksort(array, left, i - 1, compare, context,
options);
left = i + 1;
}
}
@implementation OFPlaceholderMutableArray
#ifdef __clang__
/* We intentionally don't call into super, so silence the warning. */
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wunknown-pragmas"
# pragma clang diagnostic ignored "-Wobjc-designated-initializers"
#endif
- (instancetype)init
{
return (id)[[OFConcreteMutableArray alloc] init];
}
- (instancetype)initWithCapacity: (size_t)capacity
{
return (id)[[OFConcreteMutableArray alloc] initWithCapacity: capacity];
}
- (instancetype)initWithObject: (id)object
{
return (id)[[OFConcreteMutableArray alloc] initWithObject: object];
}
- (instancetype)initWithObjects: (id)firstObject, ...
{
id ret;
va_list arguments;
va_start(arguments, firstObject);
ret = [[OFConcreteMutableArray alloc] initWithObject: firstObject
arguments: arguments];
va_end(arguments);
return ret;
}
- (instancetype)initWithObject: (id)firstObject arguments: (va_list)arguments
{
return (id)[[OFConcreteMutableArray alloc] initWithObject: firstObject
arguments: arguments];
}
- (instancetype)initWithArray: (OFArray *)array
{
return (id)[[OFConcreteMutableArray alloc] initWithArray: array];
}
- (instancetype)initWithObjects: (id const *)objects count: (size_t)count
{
return (id)[[OFConcreteMutableArray alloc] initWithObjects: objects
count: count];
}
#ifdef __clang__
# pragma clang diagnostic pop
#endif
OF_SINGLETON_METHODS
@end
@implementation OFMutableArray
+ (void)initialize
{
if (self == [OFMutableArray class])
object_setClass((id)&placeholder,
[OFPlaceholderMutableArray class]);
}
+ (instancetype)alloc
{
if (self == [OFMutableArray class])
return (id)&placeholder;
return [super alloc];
}
+ (instancetype)arrayWithCapacity: (size_t)capacity
{
return [[[self alloc] initWithCapacity: capacity] autorelease];
}
- (instancetype)init
{
return [super init];
}
#ifdef __clang__
/* We intentionally don't call into super, so silence the warning. */
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wunknown-pragmas"
# pragma clang diagnostic ignored "-Wobjc-designated-initializers"
#endif
- (instancetype)initWithObjects: (id const *)objects
count: (size_t)count
{
OF_INVALID_INIT_METHOD
}
- (instancetype)initWithCapacity: (size_t)capacity
{
OF_INVALID_INIT_METHOD
}
#ifdef __clang__
# pragma clang diagnostic pop
#endif
- (id)copy
{
return [[OFArray alloc] initWithArray: self];
}
- (void)addObject: (id)object
{
[self insertObject: object atIndex: self.count];
}
- (void)addObjectsFromArray: (OFArray *)array
{
[self insertObjectsFromArray: array atIndex: self.count];
}
- (void)insertObject: (id)object atIndex: (size_t)idx
{
OF_UNRECOGNIZED_SELECTOR
}
- (void)insertObjectsFromArray: (OFArray *)array atIndex: (size_t)idx
{
size_t i = 0;
for (id object in array)
[self insertObject: object atIndex: idx + i++];
}
- (void)replaceObjectAtIndex: (size_t)idx withObject: (id)object
{
OF_UNRECOGNIZED_SELECTOR
}
- (void)setObject: (id)object atIndexedSubscript: (size_t)idx
{
[self replaceObjectAtIndex: idx withObject: object];
}
- (void)replaceObject: (id)oldObject withObject: (id)newObject
{
size_t count;
if (oldObject == nil || newObject == nil)
@throw [OFInvalidArgumentException exception];
count = self.count;
for (size_t i = 0; i < count; i++)
if ([[self objectAtIndex: i] isEqual: oldObject])
[self replaceObjectAtIndex: i withObject: newObject];
}
- (void)replaceObjectIdenticalTo: (id)oldObject withObject: (id)newObject
{
size_t count;
if (oldObject == nil || newObject == nil)
@throw [OFInvalidArgumentException exception];
count = self.count;
for (size_t i = 0; i < count; i++)
if ([self objectAtIndex: i] == oldObject)
[self replaceObjectAtIndex: i withObject: newObject];
}
- (void)removeObjectAtIndex: (size_t)idx
{
OF_UNRECOGNIZED_SELECTOR
}
- (void)removeObject: (id)object
{
size_t count;
if (object == nil)
@throw [OFInvalidArgumentException exception];
count = self.count;
for (size_t i = 0; i < count; i++) {
if ([[self objectAtIndex: i] isEqual: object]) {
[self removeObjectAtIndex: i];
i--;
count--;
continue;
}
}
}
- (void)removeObjectIdenticalTo: (id)object
{
size_t count;
if (object == nil)
@throw [OFInvalidArgumentException exception];
count = self.count;
for (size_t i = 0; i < count; i++) {
if ([self objectAtIndex: i] == object) {
[self removeObjectAtIndex: i];
i--;
count--;
continue;
}
}
}
- (void)removeObjectsInRange: (OFRange)range
{
for (size_t i = 0; i < range.length; i++)
[self removeObjectAtIndex: range.location];
}
- (void)removeLastObject
{
size_t count = self.count;
if (count == 0)
return;
[self removeObjectAtIndex: count - 1];
}
- (void)removeAllObjects
{
[self removeObjectsInRange: OFMakeRange(0, self.count)];
}
#ifdef OF_HAVE_BLOCKS
- (void)replaceObjectsUsingBlock: (OFArrayReplaceBlock)block
{
[self enumerateObjectsUsingBlock: ^ (id object, size_t idx,
bool *stop) {
id new = block(object, idx);
if (new != object)
[self replaceObjectAtIndex: idx withObject: new];
}];
}
#endif
- (void)exchangeObjectAtIndex: (size_t)idx1 withObjectAtIndex: (size_t)idx2
{
id object1 = [self objectAtIndex: idx1];
id object2 = [self objectAtIndex: idx2];
[object1 retain];
@try {
[self replaceObjectAtIndex: idx1 withObject: object2];
[self replaceObjectAtIndex: idx2 withObject: object1];
} @finally {
[object1 release];
}
}
- (void)sort
{
[self sortUsingSelector: @selector(compare:) options: 0];
}
static OFComparisonResult
selectorCompare(id left, id right, void *context)
{
SEL selector = context;
OFComparisonResult (*comparator)(id, SEL, id) =
(OFComparisonResult (*)(id, SEL, id))
[left methodForSelector: selector];
return comparator(left, selector, right);
}
- (void)sortUsingSelector: (SEL)selector
options: (OFArraySortOptions)options
{
size_t count = self.count;
if (count == 0 || count == 1)
return;
quicksort(self, 0, count - 1, selectorCompare, (void *)selector,
options);
}
- (void)sortUsingFunction: (OFCompareFunction)compare
context: (void *)context
options: (OFArraySortOptions)options
{
size_t count = self.count;
if (count == 0 || count == 1)
return;
quicksort(self, 0, count - 1, compare, context, options);
}
#ifdef OF_HAVE_BLOCKS
static OFComparisonResult
blockCompare(id left, id right, void *context)
{
OFComparator block = (OFComparator)context;
return block(left, right);
}
- (void)sortUsingComparator: (OFComparator)comparator
options: (OFArraySortOptions)options
{
size_t count = self.count;
if (count == 0 || count == 1)
return;
quicksort(self, 0, count - 1, blockCompare, comparator, options);
}
#endif
- (void)reverse
{
size_t i, j, count = self.count;
if (count == 0 || count == 1)
return;
for (i = 0, j = count - 1; i < j; i++, j--)
[self exchangeObjectAtIndex: i withObjectAtIndex: j];
}
- (void)makeImmutable
{
}
@end