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/* Implementation for Objective-C LinkedListNode object
Copyright (C) 1993,1994, 1995 Free Software Foundation, Inc.
Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
Date: May 1993
This file is part of the GNU Objective C Class Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <objects/LinkedListNode.h>
#include <objects/Coder.h>
@implementation LinkedListNode
+ (void) initialize
{
if (self == [LinkedListNode class])
[self setVersion:0]; /* beta release */
}
- init
{
[super init];
_next = _prev = nil;
return self;
}
- (void) encodeWithCoder: aCoder
{
[super encodeWithCoder:aCoder];
[aCoder encodeObjectReference:_next withName:"Next LinkedList Node"];
[aCoder encodeObjectReference:_prev withName:"Prev LinkedList Node"];
}
- initWithCoder: aCoder
{
[super initWithCoder:aCoder];
[aCoder decodeObjectAt:&_next withName:NULL];
[aCoder decodeObjectAt:&_prev withName:NULL];
return self;
}
- (id <LinkedListComprising>) nextLink
{
return _next;
}
- (id <LinkedListComprising>) prevLink
{
return _prev;
}
- setNextLink: (id <LinkedListComprising>)aLink
{
_next = aLink;
return self;
}
- setPrevLink: (id <LinkedListComprising>)aLink
{
_prev = aLink;
return self;
}
@end
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