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// [The "BSD licence"]
// Copyright (c) 2006-2007 Kay Roepke
// 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 <Cocoa/Cocoa.h>
#import "ANTLRCommonTree.h"
@interface ANTLRUnbufferedCommonTreeNodeStreamState : NSObject {
ANTLRCommonTree *currentNode;
ANTLRCommonTree *previousNode;
int currentChildIndex;
int absoluteNodeIndex;
unsigned int nodeStackSize;
unsigned int indexStackSize;
NSMutableArray *lookahead;
}
- (ANTLRCommonTree *) currentNode;
- (void) setCurrentNode: (ANTLRCommonTree *) aCurrentNode;
- (ANTLRCommonTree *) previousNode;
- (void) setPreviousNode: (ANTLRCommonTree *) aPreviousNode;
- (NSInteger) currentChildIndex;
- (void) setCurrentChildIndex: (NSInteger) aCurrentChildIndex;
- (NSInteger) absoluteNodeIndex;
- (void) setAbsoluteNodeIndex: (NSInteger) anAbsoluteNodeIndex;
- (NSUInteger) nodeStackSize;
- (void) setNodeStackSize: (NSUInteger) aNodeStackSize;
- (NSUInteger) indexStackSize;
- (void) setIndexStackSize: (NSUInteger) anIndexStackSize;
- (NSMutableArray *) lookahead;
- (void) setLookahead: (NSMutableArray *) aLookahead;
- (void) addToLookahead: (id)lookaheadObject;
- (void) removeFromLookahead: (id)lookaheadObject;
@end
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