// // ANTLRLinkBase.m // ANTLR // // Created by Alan Condit on 6/14/10. // [The "BSD licence"] // Copyright (c) 2010 Alan Condit // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions // are met: // 1. Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // 2. Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in the // documentation and/or other materials provided with the distribution. // 3. The name of the author may not be used to endorse or promote products // derived from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. // IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT // NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #import "ANTLRLinkBase.h" @implementation ANTLRLinkBase @synthesize fPrev; @synthesize fNext; +(id<ANTLRLinkList>)newANTLRLinkBase { return [[ANTLRLinkBase alloc] init]; } +(id<ANTLRLinkList>)newANTLRLinkBase:(id<ANTLRLinkList>)np Prev:(id<ANTLRLinkList>)pp { return [[ANTLRLinkBase alloc] initWithPtr:np Prev:pp]; } -(id<ANTLRLinkList>)init { if ((self = [super init]) != nil) { fNext = nil; fPrev = nil; } return(self); } -(id<ANTLRLinkList>)initWithPtr:(id<ANTLRLinkList>)np Prev:(id<ANTLRLinkList>)pp { if ((self = [super init]) != nil) { fNext = np; fPrev = pp; } return(self); } -(void)dealloc { #ifdef DEBUG_DEALLOC NSLog( @"called dealloc in ANTLRLinkBase" ); #endif if (fNext) [fNext dealloc]; if (fPrev) [fPrev dealloc]; [super dealloc]; } - (id) copyWithZone:(NSZone *)aZone { ANTLRLinkBase *copy; copy = [[self class] allocWithZone:aZone]; copy.fPrev = fPrev; copy.fNext = fNext; return( copy ); } -(id<ANTLRLinkList>)append:(id<ANTLRLinkList>)node { node.fPrev = (id<ANTLRLinkList>)self; node.fNext = (id<ANTLRLinkList>)self.fNext; if (node.fNext != nil) node.fNext.fPrev = node; self.fNext = node; return( node ); } -(id<ANTLRLinkList>)insert:(id<ANTLRLinkList>)node { node.fNext = self; node.fPrev = self.fPrev; if (node.fPrev != nil) node.fPrev.fNext = node; self.fPrev = node; return( node ); } -(id<ANTLRLinkList>)getfNext { return(fNext); } -(void)setfNext:(id<ANTLRLinkList>)np { fNext = np; } -(id<ANTLRLinkList>)getfPrev { return(fPrev); } -(void)setfPrev:(id<ANTLRLinkList>)pp { fPrev = pp; } @end