1 // [The "BSD licence"] 2 // Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit 3 // All rights reserved. 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions 7 // are met: 8 // 1. Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // 2. Redistributions in binary form must reproduce the above copyright 11 // notice, this list of conditions and the following disclaimer in the 12 // documentation and/or other materials provided with the distribution. 13 // 3. The name of the author may not be used to endorse or promote products 14 // derived from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 // IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 // NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27 #import <Cocoa/Cocoa.h> 28 #import "CommonTree.h" 29 30 @interface ANTLRUnbufferedCommonTreeNodeStreamState : NSObject { 31 CommonTree *currentNode; 32 CommonTree *previousNode; 33 34 int currentChildIndex; 35 int absoluteNodeIndex; 36 unsigned int nodeStackSize; 37 unsigned int indexStackSize; 38 39 NSMutableArray *lookahead; 40 } 41 42 - (CommonTree *) currentNode; 43 - (void) setCurrentNode: (CommonTree *) aCurrentNode; 44 45 - (CommonTree *) previousNode; 46 - (void) setPreviousNode: (CommonTree *) aPreviousNode; 47 48 - (NSInteger) currentChildIndex; 49 - (void) setCurrentChildIndex: (NSInteger) aCurrentChildIndex; 50 51 - (NSInteger) absoluteNodeIndex; 52 - (void) setAbsoluteNodeIndex: (NSInteger) anAbsoluteNodeIndex; 53 54 - (NSUInteger) nodeStackSize; 55 - (void) setNodeStackSize: (NSUInteger) aNodeStackSize; 56 57 - (NSUInteger) indexStackSize; 58 - (void) setIndexStackSize: (NSUInteger) anIndexStackSize; 59 60 - (NSMutableArray *) lookahead; 61 - (void) setLookahead: (NSMutableArray *) aLookahead; 62 63 - (void) addToLookahead: (id)lookaheadObject; 64 - (void) removeFromLookahead: (id)lookaheadObject; 65 66 @end 67