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      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