// [The "BSD licence"] // Copyright (c) 2006-2007 Kay Roepke 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 "ANTLRUnbufferedCommonTreeNodeStreamState.h" @implementation ANTLRUnbufferedCommonTreeNodeStreamState - (id) init { if ((self = [super init]) != nil) { lookahead = [[NSMutableArray alloc] init]; } return self; } - (void) dealloc { [self setLookahead:nil]; [self setCurrentNode:nil]; [self setPreviousNode:nil]; [super dealloc]; } - (ANTLRCommonTree *) currentNode { return currentNode; } - (void) setCurrentNode: (ANTLRCommonTree *) aCurrentNode { if (currentNode != aCurrentNode) { [aCurrentNode retain]; [currentNode release]; currentNode = aCurrentNode; } } - (ANTLRCommonTree *) previousNode { return previousNode; } - (void) setPreviousNode: (ANTLRCommonTree *) aPreviousNode { if (previousNode != aPreviousNode) { [aPreviousNode retain]; [previousNode release]; previousNode = aPreviousNode; } } - (NSInteger) currentChildIndex { return currentChildIndex; } - (void) setCurrentChildIndex: (NSInteger) aCurrentChildIndex { currentChildIndex = aCurrentChildIndex; } - (NSInteger) absoluteNodeIndex { return absoluteNodeIndex; } - (void) setAbsoluteNodeIndex: (NSInteger) anAbsoluteNodeIndex { absoluteNodeIndex = anAbsoluteNodeIndex; } - (NSUInteger) nodeStackSize { return nodeStackSize; } - (void) setNodeStackSize: (NSUInteger) aNodeStackSize { nodeStackSize = aNodeStackSize; } - (NSUInteger) indexStackSize { return indexStackSize; } - (void) setIndexStackSize: (NSUInteger) anIndexStackSize { indexStackSize = anIndexStackSize; } - (NSMutableArray *) lookahead { return lookahead; } - (void) setLookahead: (NSMutableArray *) aLookahead { if (lookahead != aLookahead) { [aLookahead retain]; [lookahead release]; lookahead = aLookahead; } } - (void) addToLookahead: (id)lookaheadObject { [[self lookahead] addObject: lookaheadObject]; } - (void) removeFromLookahead: (id)lookaheadObject { [[self lookahead] removeObject: lookaheadObject]; } @end