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/**Implementation for NSPointerFunctions for GNUStep
Copyright (C) 2009 Free Software Foundation, Inc.
Written by: Richard Frith-Macdonald <rfm@gnu.org>
Date: 2009
This file is part of the GNUstep Base Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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 for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110 USA.
*/
#import "common.h"
#import "NSConcretePointerFunctions.h"
static Class abstractClass = Nil;
static Class concreteClass = Nil;
@implementation NSPointerFunctions
+ (id) allocWithZone: (NSZone*)zone
{
if (self == abstractClass)
{
return (id) NSAllocateObject(concreteClass, 0, zone);
}
return [super allocWithZone: zone];
}
+ (void) initialize
{
if (abstractClass == nil)
{
abstractClass = [NSPointerFunctions class];
concreteClass = [NSConcretePointerFunctions class];
}
}
+ (id) pointerFunctionsWithOptions: (NSPointerFunctionsOptions)options
{
return AUTORELEASE([[self alloc] initWithOptions: options]);
}
- (id) copyWithZone: (NSZone*)zone
{
return NSCopyObject(self, 0, zone);
}
- (id) initWithOptions: (NSPointerFunctionsOptions)options
{
[self subclassResponsibility: _cmd];
return nil;
}
- (void* (*)(const void *item,
NSUInteger (*size)(const void *item), BOOL shouldCopy)) acquireFunction
{
[self subclassResponsibility: _cmd];
return 0;
}
- (NSString *(*)(const void *item)) descriptionFunction
{
[self subclassResponsibility: _cmd];
return 0;
}
- (NSUInteger (*)(const void *item,
NSUInteger (*size)(const void *item))) hashFunction
{
[self subclassResponsibility: _cmd];
return 0;
}
- (BOOL (*)(const void *item1, const void *item2,
NSUInteger (*size)(const void *item))) isEqualFunction
{
[self subclassResponsibility: _cmd];
return 0;
}
- (void (*)(const void *item,
NSUInteger (*size)(const void *item))) relinquishFunction
{
[self subclassResponsibility: _cmd];
return 0;
}
- (void) setAcquireFunction: (void* (*)(const void *item,
NSUInteger (*size)(const void *item), BOOL shouldCopy))func
{
[self subclassResponsibility: _cmd];
}
- (void) setDescriptionFunction: (NSString *(*)(const void *item))func
{
[self subclassResponsibility: _cmd];
}
- (void) setHashFunction: (NSUInteger (*)(const void *item,
NSUInteger (*size)(const void *item)))func
{
[self subclassResponsibility: _cmd];
}
- (void) setIsEqualFunction: (BOOL (*)(const void *item1, const void *item2,
NSUInteger (*size)(const void *item)))func
{
[self subclassResponsibility: _cmd];
}
- (void) setRelinquishFunction: (void (*)(const void *item,
NSUInteger (*size)(const void *item))) func
{
[self subclassResponsibility: _cmd];
}
- (void) setSizeFunction: (NSUInteger (*)(const void *item))func
{
[self subclassResponsibility: _cmd];
}
- (void) setUsesStrongWriteBarrier: (BOOL)flag
{
[self subclassResponsibility: _cmd];
}
- (void) setUsesWeakReadAndWriteBarriers: (BOOL)flag
{
[self subclassResponsibility: _cmd];
}
- (NSUInteger (*)(const void *item)) sizeFunction
{
[self subclassResponsibility: _cmd];
return 0;
}
- (BOOL) usesStrongWriteBarrier
{
[self subclassResponsibility: _cmd];
return 0;
}
- (BOOL) usesWeakReadAndWriteBarriers
{
[self subclassResponsibility: _cmd];
return 0;
}
@end
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