1//
2//  ANTLRBaseRecognizer.m
3//  ANTLR
4//
5//  Created by Alan Condit on 6/16/10.
6// [The "BSD licence"]
7// Copyright (c) 2010 Alan Condit
8// All rights reserved.
9//
10// Redistribution and use in source and binary forms, with or without
11// modification, are permitted provided that the following conditions
12// are met:
13// 1. Redistributions of source code must retain the above copyright
14//    notice, this list of conditions and the following disclaimer.
15// 2. Redistributions in binary form must reproduce the above copyright
16//    notice, this list of conditions and the following disclaimer in the
17//    documentation and/or other materials provided with the distribution.
18// 3. The name of the author may not be used to endorse or promote products
19//    derived from this software without specific prior written permission.
20//
21// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31
32#import <Cocoa/Cocoa.h>
33#import "ANTLRPtrBuffer.h"
34
35//#define GLOBAL_SCOPE       0
36//#define LOCAL_SCOPE        1
37#define HASHSIZE         101
38#define HBUFSIZE      0x2000
39
40@interface ANTLRBaseStack : ANTLRPtrBuffer {
41	//ANTLRRuleStack *fNext;
42    // TStringPool *fPool;
43    NSInteger LastHash;
44}
45
46//@property (copy) ANTLRRuleStack *fNext;
47@property (getter=getLastHash, setter=setLastHash) NSInteger LastHash;
48
49// Contruction/Destruction
50+ (ANTLRBaseStack *)newANTLRBaseStack;
51+ (ANTLRBaseStack *)newANTLRBaseStackWithLen:(NSInteger)cnt;
52- (id)init;
53- (id)initWithLen:(NSInteger)cnt;
54- (void)dealloc;
55
56// Instance Methods
57- (id) copyWithZone:(NSZone *)aZone;
58
59- (NSInteger)count;
60- (NSInteger)size;
61/* clear -- reinitialize the maplist array */
62
63- (NSInteger)getLastHash;
64- (void)setLastHash:(NSInteger)aVal;
65
66@end
67