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