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      1 //
      2 //  TreeWizard.h
      3 //  ANTLR
      4 //
      5 //  Created by Alan Condit on 6/18/10.
      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 <Foundation/Foundation.h>
     33 #import "CommonTreeAdaptor.h"
     34 #import "CommonTree.h"
     35 #import "MapElement.h"
     36 #import "Map.h"
     37 #import "AMutableArray.h"
     38 
     39 @class ANTLRVisitor;
     40 
     41 @protocol ANTLRContextVisitor <NSObject>
     42 // TODO: should this be called visit or something else?
     43 - (void) visit:(CommonTree *)t Parent:(CommonTree *)parent ChildIndex:(NSInteger)childIndex Map:(Map *)labels;
     44 
     45 @end
     46 
     47 @interface ANTLRVisitor : NSObject <ANTLRContextVisitor> {
     48     NSInteger action;
     49     id actor;
     50     id object1;
     51     id object2;
     52 }
     53 + (ANTLRVisitor *)newANTLRVisitor:(NSInteger)anAction Actor:(id)anActor Object:(id)anObject1 Object:(id)anObject2;
     54 - (id) initWithAction:(NSInteger)anAction Actor:(id)anActor Object:(id)anObject1 Object:(id)anObject2;
     55 
     56 - (void) visit:(CommonTree *)t;
     57 - (void) visit:(CommonTree *)t Parent:(CommonTree *)parent ChildIndex:(NSInteger)childIndex Map:(Map *)labels;
     58 
     59 @property NSInteger action;
     60 @property (retain) id actor;
     61 @property (retain) id object1;
     62 @property (retain) id object2;
     63 @end
     64 
     65 /** When using %label:TOKENNAME in a tree for parse(), we must
     66  *  track the label.
     67  */
     68 @interface TreePattern : CommonTree {
     69     NSString *label;
     70     BOOL      hasTextArg;
     71 }
     72 @property (retain, getter=getLabel, setter=setLabel:) NSString *label;
     73 @property (assign, getter=getHasTextArg, setter=setHasTextArg:) BOOL hasTextArg;
     74 
     75 + (CommonTree *)newTreePattern:(id<Token>)payload;
     76 
     77 - (id) initWithToken:(id<Token>)payload;
     78 - (NSString *)toString;
     79 @end
     80 
     81 @interface ANTLRWildcardTreePattern : TreePattern {
     82 }
     83 
     84 + (ANTLRWildcardTreePattern *)newANTLRWildcardTreePattern:(id<Token>)payload;
     85 - (id) initWithToken:(id<Token>)payload;
     86 @end
     87 
     88 /** This adaptor creates TreePattern objects for use during scan() */
     89 @interface TreePatternTreeAdaptor : CommonTreeAdaptor {
     90 }
     91 + (TreePatternTreeAdaptor *)newTreeAdaptor;
     92 - (id) init;
     93 - (CommonTree *)createTreePattern:(id<Token>)payload;
     94 
     95 @end
     96 
     97 @interface TreeWizard : NSObject {
     98 	id<TreeAdaptor> adaptor;
     99 	Map *tokenNameToTypeMap;
    100 }
    101 + (TreeWizard *) newTreeWizard:(id<TreeAdaptor>)anAdaptor;
    102 + (TreeWizard *)newTreeWizard:(id<TreeAdaptor>)adaptor Map:(Map *)aTokenNameToTypeMap;
    103 + (TreeWizard *)newTreeWizard:(id<TreeAdaptor>)adaptor TokenNames:(NSArray *)theTokNams;
    104 + (TreeWizard *)newTreeWizardWithTokenNames:(NSArray *)theTokNams;
    105 - (id) init;
    106 - (id) initWithAdaptor:(id<TreeAdaptor>)adaptor;
    107 - (id) initWithAdaptor:(id<TreeAdaptor>)adaptor Map:(Map *)tokenNameToTypeMap;
    108 - (id) initWithTokenNames:(NSArray *)theTokNams;
    109 - (id) initWithTokenNames:(id<TreeAdaptor>)anAdaptor TokenNames:(NSArray *)theTokNams;
    110 - (void) dealloc;
    111 - (Map *)computeTokenTypes:(NSArray *)theTokNams;
    112 - (NSInteger)getTokenType:(NSString *)tokenName;
    113 - (Map *)index:(CommonTree *)t;
    114 - (void) _index:(CommonTree *)t Map:(Map *)m;
    115 - (AMutableArray *)find:(CommonTree *) t Pattern:(NSString *)pattern;
    116 - (TreeWizard *)findFirst:(CommonTree *) t Type:(NSInteger)ttype;
    117 - (TreeWizard *)findFirst:(CommonTree *) t Pattern:(NSString *)pattern;
    118 - (void) visit:(CommonTree *)t Type:(NSInteger)ttype Visitor:(ANTLRVisitor *)visitor;
    119 - (void) _visit:(CommonTree *)t
    120          Parent:(CommonTree *)parent
    121      ChildIndex:(NSInteger)childIndex
    122            Type:(NSInteger)ttype
    123         Visitor:(ANTLRVisitor *)visitor;
    124 - (void)visit:(CommonTree *)t Pattern:(NSString *)pattern Visitor:(ANTLRVisitor *)visitor;
    125 - (BOOL)parse:(CommonTree *)t Pattern:(NSString *)pattern Map:(Map *)labels;
    126 - (BOOL) parse:(CommonTree *) t Pattern:(NSString *)pattern;
    127 - (BOOL) _parse:(CommonTree *)t1 Pattern:(CommonTree *)tpattern Map:(Map *)labels;
    128 - (CommonTree *) createTree:(NSString *)pattern;
    129 - (BOOL)equals:(id)t1 O2:(id)t2 Adaptor:(id<TreeAdaptor>)anAdaptor;
    130 - (BOOL)equals:(id)t1 O2:(id)t2;
    131 - (BOOL) _equals:(id)t1 O2:(id)t2 Adaptor:(id<TreeAdaptor>)anAdaptor;
    132 
    133 @property (retain) id<TreeAdaptor> adaptor;
    134 @property (retain) Map *tokenNameToTypeMap;
    135 @end
    136 
    137