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      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 #define SUCCESS (0)
     33 #define FAILURE (-1)
     34 
     35 #import "ANTLRBaseStack.h"
     36 #import "ANTLRTree.h"
     37 
     38 /*
     39  * Start of ANTLRBaseStack
     40  */
     41 @implementation ANTLRBaseStack
     42 
     43 @synthesize LastHash;
     44 
     45 +(ANTLRBaseStack *)newANTLRBaseStack
     46 {
     47     return [[ANTLRBaseStack alloc] init];
     48 }
     49 
     50 +(ANTLRBaseStack *)newANTLRBaseStackWithLen:(NSInteger)cnt
     51 {
     52     return [[ANTLRBaseStack alloc] initWithLen:cnt];
     53 }
     54 
     55 -(id)init
     56 {
     57 	self = [super initWithLen:HASHSIZE];
     58 	if ( self != nil ) {
     59 	}
     60     return( self );
     61 }
     62 
     63 -(id)initWithLen:(NSInteger)cnt
     64 {
     65 	self = [super initWithLen:cnt];
     66     if ( self != nil ) {
     67 	}
     68     return( self );
     69 }
     70 
     71 - (void)dealloc
     72 {
     73 #ifdef DEBUG_DEALLOC
     74     NSLog( @"called dealloc in ANTLRBaseStack" );
     75 #endif
     76 	[super dealloc];
     77 }
     78 
     79 - (id) copyWithZone:(NSZone *)aZone
     80 {
     81     ANTLRBaseStack *copy;
     82     
     83     copy = [super copyWithZone:aZone];
     84     return copy;
     85 }
     86 
     87 - (NSUInteger)count
     88 {
     89     NSUInteger aCnt = 0;
     90     
     91     for (int i = 0; i < BuffSize; i++) {
     92         if (ptrBuffer[i] != nil) {
     93             aCnt++;
     94         }
     95     }
     96     return aCnt;
     97 }
     98 
     99 - (NSUInteger) size
    100 {
    101     return BuffSize;
    102 }
    103 
    104 -(void)deleteANTLRBaseStack:(ANTLRBaseStack *)np
    105 {
    106     id tmp, rtmp;
    107     NSInteger idx;
    108     
    109     if ( self.fNext != nil ) {
    110         for( idx = 0; idx < BuffSize; idx++ ) {
    111             tmp = (ANTLRLinkBase *)ptrBuffer[idx];
    112             while ( tmp ) {
    113                 rtmp = tmp;
    114                 tmp = [tmp getfNext];
    115                 [rtmp release];
    116             }
    117         }
    118     }
    119 }
    120 
    121 - (NSInteger)getLastHash
    122 {
    123     return LastHash;
    124 }
    125 
    126 - (void)setLastHash:(NSInteger)aVal
    127 {
    128     LastHash = aVal;
    129 }
    130 
    131 @end
    132