1//
2//  ANTLRSymbolStack.h
3//  ANTLR
4//
5//  Created by Alan Condit on 6/9/10.
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 "ANTLRBaseStack.h"
34// #import "ANTLRSymbolScope.h"
35
36//#define GLOBAL_SCOPE       0
37//#define LOCAL_SCOPE        1
38#define HASHSIZE         101
39#define HBUFSIZE      0x2000
40
41@interface ANTLRSymbolsScope : NSObject
42{
43
44}
45
46+ (ANTLRSymbolsScope *)newANTLRSymbolsScope;
47
48- (id)init;
49@end
50
51
52@interface ANTLRSymbolStack : ANTLRBaseStack {
53}
54
55// Contruction/Destruction
56+(ANTLRSymbolStack *)newANTLRSymbolStack;
57+(ANTLRSymbolStack *)newANTLRSymbolStackWithLen:(NSInteger)cnt;
58-(id)init;
59-(id)initWithLen:(NSInteger)cnt;
60-(void)dealloc;
61
62// Instance Methods
63- (id) copyWithZone:(NSZone *)aZone;
64/* clear -- reinitialize the maplist array */
65
66-(ANTLRSymbolsScope *)getHashMapEntry:(NSInteger)idx;
67
68-(ANTLRSymbolsScope **)getHashMap;
69
70-(ANTLRSymbolsScope *) pop;
71
72- (void) insertObject:(ANTLRSymbolsScope *)aScope atIndex:(NSInteger)idx;
73- (ANTLRSymbolsScope *)objectAtIndex:(NSInteger)idx;
74
75@end
76