001    /**
002     *
003     * Copyright 2005 Jeremy Rayner
004     *
005     * Licensed under the Apache License, Version 2.0 (the "License");
006     * you may not use this file except in compliance with the License.
007     * You may obtain a copy of the License at
008     *
009     * http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     *
017     **/
018    package org.codehaus.groovy.antlr.treewalker;
019    
020    import java.util.List;
021    import java.util.ArrayList;
022    import org.codehaus.groovy.antlr.GroovySourceAST;
023    import org.codehaus.groovy.antlr.AntlrASTProcessor;
024    import org.codehaus.groovy.antlr.parser.GroovyTokenTypes;
025    
026    import antlr.collections.AST;
027    
028    /**                                                  
029     * Helper Class for Antlr AST traversal and visitation.
030     *
031     * @author <a href="mailto:groovy@ross-rayner.com">Jeremy Rayner</a>
032     * @version $Revision: 1.6 $
033     */
034    
035    public abstract class TraversalHelper implements AntlrASTProcessor {
036        protected List unvisitedNodes;
037        private Visitor v;
038    
039        public TraversalHelper(Visitor visitor) {
040            this.unvisitedNodes = new ArrayList();
041            this.v = visitor;
042        }
043    
044        protected void setUp(GroovySourceAST ast) {
045            v.setUp();
046        }
047        protected void tearDown(GroovySourceAST ast) {
048            v.tearDown();
049        }
050    
051        protected void visitNode(GroovySourceAST ast, int n) {
052            switch (ast.getType()) {
053                case GroovyTokenTypes.ABSTRACT                      :   v.visitAbstract(ast,n);                     break;
054                case GroovyTokenTypes.ANNOTATION                    :   v.visitAnnotation(ast,n);                   break;
055                case GroovyTokenTypes.ANNOTATIONS                   :   v.visitAnnotations(ast,n);                  break;
056                case GroovyTokenTypes.ANNOTATION_ARRAY_INIT         :   v.visitAnnotationArrayInit(ast,n);          break;
057                case GroovyTokenTypes.ANNOTATION_DEF                :   v.visitAnnotationDef(ast,n);                break;
058                case GroovyTokenTypes.ANNOTATION_FIELD_DEF          :   v.visitAnnotationFieldDef(ast,n);           break;
059                case GroovyTokenTypes.ANNOTATION_MEMBER_VALUE_PAIR  :   v.visitAnnotationMemberValuePair(ast,n);    break;
060                case GroovyTokenTypes.ARRAY_DECLARATOR              :   v.visitArrayDeclarator(ast,n);              break;
061                case GroovyTokenTypes.ASSIGN                        :   v.visitAssign(ast,n);                       break;
062                case GroovyTokenTypes.AT                            :   v.visitAt(ast,n);                           break;
063                case GroovyTokenTypes.BAND                          :   v.visitBand(ast,n);                         break;
064                case GroovyTokenTypes.BAND_ASSIGN                   :   v.visitBandAssign(ast,n);                   break;
065                case GroovyTokenTypes.BIG_SUFFIX                    :   v.visitBigSuffix(ast,n);                    break;
066                case GroovyTokenTypes.BLOCK                         :   v.visitBlock(ast,n);                        break;
067                case GroovyTokenTypes.BNOT                          :   v.visitBnot(ast,n);                         break;
068                case GroovyTokenTypes.BOR                           :   v.visitBor(ast,n);                          break;
069                case GroovyTokenTypes.BOR_ASSIGN                    :   v.visitBorAssign(ast,n);                    break;
070                case GroovyTokenTypes.BSR                           :   v.visitBsr(ast,n);                          break;
071                case GroovyTokenTypes.BSR_ASSIGN                    :   v.visitBsrAssign(ast,n);                    break;
072                case GroovyTokenTypes.BXOR                          :   v.visitBxor(ast,n);                         break;
073                case GroovyTokenTypes.BXOR_ASSIGN                   :   v.visitBxorAssign(ast,n);                   break;
074                case GroovyTokenTypes.CASE_GROUP                    :   v.visitCaseGroup(ast,n);                    break;
075                case GroovyTokenTypes.CLASS_DEF                     :   v.visitClassDef(ast,n);                     break;
076                case GroovyTokenTypes.CLOSED_BLOCK                  :   v.visitClosedBlock(ast,n);                  break;
077                case GroovyTokenTypes.CLOSURE_OP                    :   v.visitClosureOp(ast,n);                    break;
078                case GroovyTokenTypes.COLON                         :   v.visitColon(ast,n);                        break;
079                case GroovyTokenTypes.COMMA                         :   v.visitComma(ast,n);                        break;
080                case GroovyTokenTypes.COMPARE_TO                    :   v.visitCompareTo(ast,n);                    break;
081                case GroovyTokenTypes.CTOR_CALL                     :   v.visitCtorCall(ast,n);                     break;
082                case GroovyTokenTypes.CTOR_IDENT                    :   v.visitCtorIdent(ast,n);                    break;
083                case GroovyTokenTypes.DEC                           :   v.visitDec(ast,n);                          break;
084                case GroovyTokenTypes.DIGIT                         :   v.visitDigit(ast,n);                        break;
085                case GroovyTokenTypes.DIV                           :   v.visitDiv(ast,n);                          break;
086                case GroovyTokenTypes.DIV_ASSIGN                    :   v.visitDivAssign(ast,n);                    break;
087                case GroovyTokenTypes.DOLLAR                        :   v.visitDollar(ast,n);                       break;
088                case GroovyTokenTypes.DOT                           :   v.visitDot(ast,n);                          break;
089                case GroovyTokenTypes.DYNAMIC_MEMBER                :   v.visitDynamicMember(ast,n);                break;
090                case GroovyTokenTypes.ELIST                         :   v.visitElist(ast,n);                        break;
091                case GroovyTokenTypes.EMPTY_STAT                    :   v.visitEmptyStat(ast,n);                    break;
092                case GroovyTokenTypes.ENUM_CONSTANT_DEF             :   v.visitEnumConstantDef(ast,n);              break;
093                case GroovyTokenTypes.ENUM_DEF                      :   v.visitEnumDef(ast,n);                      break;
094                case GroovyTokenTypes.EOF                           :   v.visitEof(ast,n);                          break;
095                case GroovyTokenTypes.EQUAL                         :   v.visitEqual(ast,n);                        break;
096                case GroovyTokenTypes.ESC                           :   v.visitEsc(ast,n);                          break;
097                case GroovyTokenTypes.EXPONENT                      :   v.visitExponent(ast,n);                     break;
098                case GroovyTokenTypes.EXPR                          :   v.visitExpr(ast,n);                         break;
099                case GroovyTokenTypes.EXTENDS_CLAUSE                :   v.visitExtendsClause(ast,n);                break;
100                case GroovyTokenTypes.FINAL                         :   v.visitFinal(ast,n);                        break;
101                case GroovyTokenTypes.FLOAT_SUFFIX                  :   v.visitFloatSuffix(ast,n);                  break;
102                case GroovyTokenTypes.FOR_CONDITION                 :   v.visitForCondition(ast,n);                 break;
103                case GroovyTokenTypes.FOR_EACH_CLAUSE               :   v.visitForEachClause(ast,n);                break;
104                case GroovyTokenTypes.FOR_INIT                      :   v.visitForInit(ast,n);                      break;
105                case GroovyTokenTypes.FOR_IN_ITERABLE               :   v.visitForInIterable(ast,n);                break;
106                case GroovyTokenTypes.FOR_ITERATOR                  :   v.visitForIterator(ast,n);                  break;
107                case GroovyTokenTypes.GE                            :   v.visitGe(ast,n);                           break;
108                case GroovyTokenTypes.GT                            :   v.visitGt(ast,n);                           break;
109                case GroovyTokenTypes.HEX_DIGIT                     :   v.visitHexDigit(ast,n);                     break;
110                case GroovyTokenTypes.IDENT                         :   v.visitIdent(ast,n);                        break;
111                case GroovyTokenTypes.IMPLEMENTS_CLAUSE             :   v.visitImplementsClause(ast,n);             break;
112                case GroovyTokenTypes.IMPLICIT_PARAMETERS           :   v.visitImplicitParameters(ast,n);           break;
113                case GroovyTokenTypes.IMPORT                        :   v.visitImport(ast,n);                       break;
114                case GroovyTokenTypes.INC                           :   v.visitInc(ast,n);                          break;
115                case GroovyTokenTypes.INDEX_OP                      :   v.visitIndexOp(ast,n);                      break;
116                case GroovyTokenTypes.INSTANCE_INIT                 :   v.visitInstanceInit(ast,n);                 break;
117                case GroovyTokenTypes.INTERFACE_DEF                 :   v.visitInterfaceDef(ast,n);                 break;
118                case GroovyTokenTypes.LABELED_ARG                   :   v.visitLabeledArg(ast,n);                   break;
119                case GroovyTokenTypes.LABELED_STAT                  :   v.visitLabeledStat(ast,n);                  break;
120                case GroovyTokenTypes.LAND                          :   v.visitLand(ast,n);                         break;
121                case GroovyTokenTypes.LBRACK                        :   v.visitLbrack(ast,n);                       break;
122                case GroovyTokenTypes.LCURLY                        :   v.visitLcurly(ast,n);                       break;
123                case GroovyTokenTypes.LE                            :   v.visitLe(ast,n);                           break;
124                case GroovyTokenTypes.LETTER                        :   v.visitLetter(ast,n);                       break;
125                case GroovyTokenTypes.LIST_CONSTRUCTOR              :   v.visitListConstructor(ast,n);              break;
126                case GroovyTokenTypes.LITERAL_any                   :   v.visitLiteralAny(ast,n);                   break;
127                case GroovyTokenTypes.LITERAL_as                    :   v.visitLiteralAs(ast,n);                    break;
128                case GroovyTokenTypes.LITERAL_assert                :   v.visitLiteralAssert(ast,n);                break;
129                case GroovyTokenTypes.LITERAL_boolean               :   v.visitLiteralBoolean(ast,n);               break;
130                case GroovyTokenTypes.LITERAL_break                 :   v.visitLiteralBreak(ast,n);                 break;
131                case GroovyTokenTypes.LITERAL_byte                  :   v.visitLiteralByte(ast,n);                  break;
132                case GroovyTokenTypes.LITERAL_case                  :   v.visitLiteralCase(ast,n);                  break;
133                case GroovyTokenTypes.LITERAL_catch                 :   v.visitLiteralCatch(ast,n);                 break;
134                case GroovyTokenTypes.LITERAL_char                  :   v.visitLiteralChar(ast,n);                  break;
135                case GroovyTokenTypes.LITERAL_class                 :   v.visitLiteralClass(ast,n);                 break;
136                case GroovyTokenTypes.LITERAL_continue              :   v.visitLiteralContinue(ast,n);              break;
137                case GroovyTokenTypes.LITERAL_def                   :   v.visitLiteralDef(ast,n);                   break;
138                case GroovyTokenTypes.LITERAL_default               :   v.visitLiteralDefault(ast,n);               break;
139                case GroovyTokenTypes.LITERAL_double                :   v.visitLiteralDouble(ast,n);                break;
140                case GroovyTokenTypes.LITERAL_else                  :   v.visitLiteralElse(ast,n);                  break;
141                case GroovyTokenTypes.LITERAL_enum                  :   v.visitLiteralEnum(ast,n);                  break;
142                case GroovyTokenTypes.LITERAL_extends               :   v.visitLiteralExtends(ast,n);               break;
143                case GroovyTokenTypes.LITERAL_false                 :   v.visitLiteralFalse(ast,n);                 break;
144                case GroovyTokenTypes.LITERAL_finally               :   v.visitLiteralFinally(ast,n);               break;
145                case GroovyTokenTypes.LITERAL_float                 :   v.visitLiteralFloat(ast,n);                 break;
146                case GroovyTokenTypes.LITERAL_for                   :   v.visitLiteralFor(ast,n);                   break;
147                case GroovyTokenTypes.LITERAL_if                    :   v.visitLiteralIf(ast,n);                    break;
148                case GroovyTokenTypes.LITERAL_implements            :   v.visitLiteralImplements(ast,n);            break;
149                case GroovyTokenTypes.LITERAL_import                :   v.visitLiteralImport(ast,n);                break;
150                case GroovyTokenTypes.LITERAL_in                    :   v.visitLiteralIn(ast,n);                    break;
151                case GroovyTokenTypes.LITERAL_instanceof            :   v.visitLiteralInstanceof(ast,n);            break;
152                case GroovyTokenTypes.LITERAL_int                   :   v.visitLiteralInt(ast,n);                   break;
153                case GroovyTokenTypes.LITERAL_interface             :   v.visitLiteralInterface(ast,n);             break;
154                case GroovyTokenTypes.LITERAL_long                  :   v.visitLiteralLong(ast,n);                  break;
155                case GroovyTokenTypes.LITERAL_native                :   v.visitLiteralNative(ast,n);                break;
156                case GroovyTokenTypes.LITERAL_new                   :   v.visitLiteralNew(ast,n);                   break;
157                case GroovyTokenTypes.LITERAL_null                  :   v.visitLiteralNull(ast,n);                  break;
158                case GroovyTokenTypes.LITERAL_package               :   v.visitLiteralPackage(ast,n);               break;
159                case GroovyTokenTypes.LITERAL_private               :   v.visitLiteralPrivate(ast,n);               break;
160                case GroovyTokenTypes.LITERAL_protected             :   v.visitLiteralProtected(ast,n);             break;
161                case GroovyTokenTypes.LITERAL_public                :   v.visitLiteralPublic(ast,n);                break;
162                case GroovyTokenTypes.LITERAL_return                :   v.visitLiteralReturn(ast,n);                break;
163                case GroovyTokenTypes.LITERAL_short                 :   v.visitLiteralShort(ast,n);                 break;
164                case GroovyTokenTypes.LITERAL_static                :   v.visitLiteralStatic(ast,n);                break;
165                case GroovyTokenTypes.LITERAL_super                 :   v.visitLiteralSuper(ast,n);                 break;
166                case GroovyTokenTypes.LITERAL_switch                :   v.visitLiteralSwitch(ast,n);                break;
167                case GroovyTokenTypes.LITERAL_synchronized          :   v.visitLiteralSynchronized(ast,n);          break;
168                case GroovyTokenTypes.LITERAL_this                  :   v.visitLiteralThis(ast,n);                  break;
169                case GroovyTokenTypes.LITERAL_threadsafe            :   v.visitLiteralThreadsafe(ast,n);            break;
170                case GroovyTokenTypes.LITERAL_throw                 :   v.visitLiteralThrow(ast,n);                 break;
171                case GroovyTokenTypes.LITERAL_throws                :   v.visitLiteralThrows(ast,n);                break;
172                case GroovyTokenTypes.LITERAL_transient             :   v.visitLiteralTransient(ast,n);             break;
173                case GroovyTokenTypes.LITERAL_true                  :   v.visitLiteralTrue(ast,n);                  break;
174                case GroovyTokenTypes.LITERAL_try                   :   v.visitLiteralTry(ast,n);                   break;
175                case GroovyTokenTypes.LITERAL_void                  :   v.visitLiteralVoid(ast,n);                  break;
176                case GroovyTokenTypes.LITERAL_volatile              :   v.visitLiteralVolatile(ast,n);              break;
177                case GroovyTokenTypes.LITERAL_while                 :   v.visitLiteralWhile(ast,n);                 break;
178                case GroovyTokenTypes.LITERAL_with                  :   v.visitLiteralWith(ast,n);                  break;
179                case GroovyTokenTypes.LNOT                          :   v.visitLnot(ast,n);                         break;
180                case GroovyTokenTypes.LOR                           :   v.visitLor(ast,n);                          break;
181                case GroovyTokenTypes.LPAREN                        :   v.visitLparen(ast,n);                       break;
182                case GroovyTokenTypes.LT                            :   v.visitLt(ast,n);                           break;
183                case GroovyTokenTypes.MAP_CONSTRUCTOR               :   v.visitMapConstructor(ast,n);               break;
184                case GroovyTokenTypes.MEMBER_POINTER                :   v.visitMemberPointer(ast,n);                break;
185                case GroovyTokenTypes.METHOD_CALL                   :   v.visitMethodCall(ast,n);                   break;
186                case GroovyTokenTypes.METHOD_DEF                    :   v.visitMethodDef(ast,n);                    break;
187                case GroovyTokenTypes.MINUS                         :   v.visitMinus(ast,n);                        break;
188                case GroovyTokenTypes.MINUS_ASSIGN                  :   v.visitMinusAssign(ast,n);                  break;
189                case GroovyTokenTypes.ML_COMMENT                    :   v.visitMlComment(ast,n);                    break;
190                case GroovyTokenTypes.MOD                           :   v.visitMod(ast,n);                          break;
191                case GroovyTokenTypes.MODIFIERS                     :   v.visitModifiers(ast,n);                    break;
192                case GroovyTokenTypes.MOD_ASSIGN                    :   v.visitModAssign(ast,n);                    break;
193                case GroovyTokenTypes.NLS                           :   v.visitNls(ast,n);                          break;
194                case GroovyTokenTypes.NOT_EQUAL                     :   v.visitNotEqual(ast,n);                     break;
195                case GroovyTokenTypes.NULL_TREE_LOOKAHEAD           :   v.visitNullTreeLookahead(ast,n);            break;
196                case GroovyTokenTypes.NUM_BIG_DECIMAL               :   v.visitNumBigDecimal(ast,n);                break;
197                case GroovyTokenTypes.NUM_BIG_INT                   :   v.visitNumBigInt(ast,n);                    break;
198                case GroovyTokenTypes.NUM_DOUBLE                    :   v.visitNumDouble(ast,n);                    break;
199                case GroovyTokenTypes.NUM_FLOAT                     :   v.visitNumFloat(ast,n);                     break;
200                case GroovyTokenTypes.NUM_INT                       :   v.visitNumInt(ast,n);                       break;
201                case GroovyTokenTypes.NUM_LONG                      :   v.visitNumLong(ast,n);                      break;
202                case GroovyTokenTypes.OBJBLOCK                      :   v.visitObjblock(ast,n);                     break;
203                case GroovyTokenTypes.ONE_NL                        :   v.visitOneNl(ast,n);                        break;
204                case GroovyTokenTypes.OPTIONAL_DOT                  :   v.visitOptionalDot(ast,n);                  break;
205                case GroovyTokenTypes.PACKAGE_DEF                   :   v.visitPackageDef(ast,n);                   break;
206                case GroovyTokenTypes.PARAMETERS                    :   v.visitParameters(ast,n);                   break;
207                case GroovyTokenTypes.PARAMETER_DEF                 :   v.visitParameterDef(ast,n);                 break;
208                case GroovyTokenTypes.PLUS                          :   v.visitPlus(ast,n);                         break;
209                case GroovyTokenTypes.PLUS_ASSIGN                   :   v.visitPlusAssign(ast,n);                   break;
210                case GroovyTokenTypes.POST_DEC                      :   v.visitPostDec(ast,n);                      break;
211                case GroovyTokenTypes.POST_INC                      :   v.visitPostInc(ast,n);                      break;
212                case GroovyTokenTypes.QUESTION                      :   v.visitQuestion(ast,n);                     break;
213                case GroovyTokenTypes.RANGE_EXCLUSIVE               :   v.visitRangeExclusive(ast,n);               break;
214                case GroovyTokenTypes.RANGE_INCLUSIVE               :   v.visitRangeInclusive(ast,n);               break;
215                case GroovyTokenTypes.RBRACK                        :   v.visitRbrack(ast,n);                       break;
216                case GroovyTokenTypes.RCURLY                        :   v.visitRcurly(ast,n);                       break;
217                case GroovyTokenTypes.REGEXP_CTOR_END               :   v.visitRegexpCtorEnd(ast,n);                break;
218                case GroovyTokenTypes.REGEXP_LITERAL                :   v.visitRegexpLiteral(ast,n);                break;
219                case GroovyTokenTypes.REGEXP_SYMBOL                 :   v.visitRegexpSymbol(ast,n);                 break;
220                case GroovyTokenTypes.REGEX_FIND                    :   v.visitRegexFind(ast,n);                    break;
221                case GroovyTokenTypes.REGEX_MATCH                   :   v.visitRegexMatch(ast,n);                   break;
222                case GroovyTokenTypes.RPAREN                        :   v.visitRparen(ast,n);                       break;
223                case GroovyTokenTypes.SCOPE_ESCAPE                  :   v.visitScopeEscape(ast,n);                  break;
224                case GroovyTokenTypes.SELECT_SLOT                   :   v.visitSelectSlot(ast,n);                   break;
225                case GroovyTokenTypes.SEMI                          :   v.visitSemi(ast,n);                         break;
226                case GroovyTokenTypes.SH_COMMENT                    :   v.visitShComment(ast,n);                    break;
227                case GroovyTokenTypes.SL                            :   v.visitSl(ast,n);                           break;
228                case GroovyTokenTypes.SLIST                         :   v.visitSlist(ast,n);                        break;
229                case GroovyTokenTypes.SL_ASSIGN                     :   v.visitSlAssign(ast,n);                     break;
230                case GroovyTokenTypes.SL_COMMENT                    :   v.visitSlComment(ast,n);                    break;
231                case GroovyTokenTypes.SPREAD_ARG                    :   v.visitSpreadArg(ast,n);                    break;
232                case GroovyTokenTypes.SPREAD_DOT                    :   v.visitSpreadDot(ast,n);                    break;
233                case GroovyTokenTypes.SPREAD_MAP_ARG                :   v.visitSpreadMapArg(ast,n);                 break;
234                case GroovyTokenTypes.SR                            :   v.visitSr(ast,n);                           break;
235                case GroovyTokenTypes.SR_ASSIGN                     :   v.visitSrAssign(ast,n);                     break;
236                case GroovyTokenTypes.STAR                          :   v.visitStar(ast,n);                         break;
237                case GroovyTokenTypes.STAR_ASSIGN                   :   v.visitStarAssign(ast,n);                   break;
238                case GroovyTokenTypes.STAR_STAR                     :   v.visitStarStar(ast,n);                     break;
239                case GroovyTokenTypes.STAR_STAR_ASSIGN              :   v.visitStarStarAssign(ast,n);               break;
240                case GroovyTokenTypes.STATIC_IMPORT                 :   v.visitStaticImport(ast,n);                 break;
241                case GroovyTokenTypes.STATIC_INIT                   :   v.visitStaticInit(ast,n);                   break;
242                case GroovyTokenTypes.STRICTFP                      :   v.visitStrictfp(ast,n);                     break;
243                case GroovyTokenTypes.STRING_CH                     :   v.visitStringCh(ast,n);                     break;
244                case GroovyTokenTypes.STRING_CONSTRUCTOR            :   v.visitStringConstructor(ast,n);            break;
245                case GroovyTokenTypes.STRING_CTOR_END               :   v.visitStringCtorEnd(ast,n);                break;
246                case GroovyTokenTypes.STRING_CTOR_MIDDLE            :   v.visitStringCtorMiddle(ast,n);             break;
247                case GroovyTokenTypes.STRING_CTOR_START             :   v.visitStringCtorStart(ast,n);              break;
248                case GroovyTokenTypes.STRING_LITERAL                :   v.visitStringLiteral(ast,n);                break;
249                case GroovyTokenTypes.STRING_NL                     :   v.visitStringNl(ast,n);                     break;
250                case GroovyTokenTypes.SUPER_CTOR_CALL               :   v.visitSuperCtorCall(ast,n);                break;
251                case GroovyTokenTypes.TRIPLE_DOT                    :   v.visitTripleDot(ast,n);                    break;
252                case GroovyTokenTypes.TYPE                          :   v.visitType(ast,n);                         break;
253                case GroovyTokenTypes.TYPECAST                      :   v.visitTypecast(ast,n);                     break;
254                case GroovyTokenTypes.TYPE_ARGUMENT                 :   v.visitTypeArgument(ast,n);                 break;
255                case GroovyTokenTypes.TYPE_ARGUMENTS                :   v.visitTypeArguments(ast,n);                break;
256                case GroovyTokenTypes.TYPE_LOWER_BOUNDS             :   v.visitTypeLowerBounds(ast,n);              break;
257                case GroovyTokenTypes.TYPE_PARAMETER                :   v.visitTypeParameter(ast,n);                break;
258                case GroovyTokenTypes.TYPE_PARAMETERS               :   v.visitTypeParameters(ast,n);               break;
259                case GroovyTokenTypes.TYPE_UPPER_BOUNDS             :   v.visitTypeUpperBounds(ast,n);              break;
260                case GroovyTokenTypes.UNARY_MINUS                   :   v.visitUnaryMinus(ast,n);                   break;
261                case GroovyTokenTypes.UNARY_PLUS                    :   v.visitUnaryPlus(ast,n);                    break;
262                case GroovyTokenTypes.UNUSED_CONST                  :   v.visitUnusedConst(ast,n);                  break;
263                case GroovyTokenTypes.UNUSED_DO                     :   v.visitUnusedDo(ast,n);                     break;
264                case GroovyTokenTypes.UNUSED_GOTO                   :   v.visitUnusedGoto(ast,n);                   break;
265                case GroovyTokenTypes.VARIABLE_DEF                  :   v.visitVariableDef(ast,n);                  break;
266                case GroovyTokenTypes.VARIABLE_PARAMETER_DEF        :   v.visitVariableParameterDef(ast,n);         break;
267                case GroovyTokenTypes.VOCAB                         :   v.visitVocab(ast,n);                        break;
268                case GroovyTokenTypes.WILDCARD_TYPE                 :   v.visitWildcardType(ast,n);                 break;
269                case GroovyTokenTypes.WS                            :   v.visitWs(ast,n);                           break;
270    
271    
272                default                                             :   v.visitDefault(ast,n);                      break;
273            }
274        }
275        protected abstract void accept(GroovySourceAST currentNode);
276    
277        protected void accept_v_FirstChildsFirstChild_v_Child2_Child3_v_Child4_v___v_LastChild(GroovySourceAST t) {
278            openingVisit(t);
279            GroovySourceAST expr2 = t.childAt(0);
280            skip(expr2);
281            accept(expr2.childAt(0));
282            closingVisit(t);
283    
284            GroovySourceAST sibling = (GroovySourceAST)expr2.getNextSibling();
285            boolean firstSList = true;
286            while (sibling != null) {
287                if (!firstSList) {
288                    subsequentVisit(t);
289                }
290                firstSList = false;
291                accept(sibling);
292                sibling = (GroovySourceAST)sibling.getNextSibling();
293            }
294        }
295    
296        protected void accept_v_FirstChildsFirstChild_v_RestOfTheChildren(GroovySourceAST t) {
297            openingVisit(t);
298            GroovySourceAST expr = t.childAt(0);
299            skip(expr);
300            accept(expr.childAt(0));
301            closingVisit(t);
302            acceptSiblings(expr);
303        }
304    
305        protected void accept_FirstChild_v_SecondChild(GroovySourceAST t) {
306            accept(t.childAt(0));
307            subsequentVisit(t);
308            accept(t.childAt(1));
309        }
310        protected void accept_FirstChild_v_SecondChild_v(GroovySourceAST t) {
311            accept(t.childAt(0));
312            openingVisit(t);
313            accept(t.childAt(1));
314            closingVisit(t);
315        }
316    
317        protected void accept_FirstChild_v_SecondChildsChildren_v(GroovySourceAST t) {
318            accept(t.childAt(0));
319    
320            openingVisit(t);
321            GroovySourceAST secondChild = t.childAt(1);
322            if (secondChild != null) {
323                acceptChildren(secondChild);
324            }
325            closingVisit(t);
326        }
327    
328        protected void accept_FirstChild_v_SecondChild_v_ThirdChild_v(GroovySourceAST t) {
329            accept(t.childAt(0));
330            openingVisit(t);
331            accept(t.childAt(1));
332            subsequentVisit(t);
333            accept(t.childAt(2));
334            closingVisit(t);
335        }
336        protected void accept_v_FirstChild_v_SecondChild_v___LastChild_v(GroovySourceAST t) {
337            openingVisit(t);
338            GroovySourceAST child = (GroovySourceAST)t.getFirstChild();
339            if (child != null){
340                accept(child);
341                GroovySourceAST sibling = (GroovySourceAST)child.getNextSibling();
342                while (sibling != null) {
343                    subsequentVisit(t);
344                    accept(sibling);
345                    sibling = (GroovySourceAST)sibling.getNextSibling();
346                }
347            }
348            closingVisit(t);
349        }
350    
351        protected void accept_v_FirstChild_v(GroovySourceAST t) {
352            openingVisit(t);
353            accept(t.childAt(0));
354            closingVisit(t);
355        }
356    
357        protected void accept_v_AllChildren_v_Siblings(GroovySourceAST t) {
358            openingVisit(t);
359            acceptChildren(t);
360            closingVisit(t);
361            acceptSiblings(t);
362        }
363    
364        protected void accept_v_AllChildren_v(GroovySourceAST t) {
365            openingVisit(t);
366            acceptChildren(t);
367            closingVisit(t);
368        }
369    
370        protected void accept_FirstChild_v_RestOfTheChildren(GroovySourceAST t) {
371            accept(t.childAt(0));
372            openingVisit(t);
373            closingVisit(t);
374            acceptSiblings(t.childAt(0));
375        }
376        protected void accept_FirstChild_v_RestOfTheChildren_v_LastChild(GroovySourceAST t) {
377            int count = 0;
378            accept(t.childAt(0));
379            count++;
380            openingVisit(t);
381            if (t.childAt(0) != null) {
382                GroovySourceAST sibling = (GroovySourceAST)t.childAt(0).getNextSibling();
383                while (sibling != null) {
384                    if (count == t.getNumberOfChildren() - 1) {closingVisit(t);}
385                    accept(sibling);
386                    count++;
387                    sibling = (GroovySourceAST)sibling.getNextSibling();
388                }
389            }
390    
391    
392        }
393        protected void accept_FirstChild_v_RestOfTheChildren_v(GroovySourceAST t) {
394            accept(t.childAt(0));
395            openingVisit(t);
396            acceptSiblings(t.childAt(0));
397            closingVisit(t);
398        }
399        protected void accept_v_FirstChild_v_RestOfTheChildren(GroovySourceAST t) {
400            accept_v_FirstChild_v(t);
401            acceptSiblings(t.childAt(0));
402        }
403    
404        protected void accept_v_FirstChild_v_RestOfTheChildren_v(GroovySourceAST t) {
405            openingVisit(t);
406            accept(t.childAt(0));
407            subsequentVisit(t);
408            acceptSiblings(t.childAt(0));
409            closingVisit(t);
410        }
411    
412        protected void acceptSiblings(GroovySourceAST t) {
413            if (t != null) {
414                GroovySourceAST sibling = (GroovySourceAST)t.getNextSibling();
415                while (sibling != null) {
416                    accept(sibling);
417                    sibling = (GroovySourceAST)sibling.getNextSibling();
418                }
419            }
420        }
421    
422        protected void acceptChildren(GroovySourceAST t) {
423            GroovySourceAST child = (GroovySourceAST)t.getFirstChild();
424            if (child != null){
425                accept(child);
426                acceptSiblings(child);
427            }
428        }
429    
430        protected void skip(GroovySourceAST expr) {
431            unvisitedNodes.remove(expr);
432        }
433    
434        protected void openingVisit(GroovySourceAST t) {
435            unvisitedNodes.remove(t);
436    
437            int n = Visitor.OPENING_VISIT;
438            visitNode(t, n);
439        }
440    
441        protected void subsequentVisit(GroovySourceAST t) {
442            int n = Visitor.SUBSEQUENT_VISIT;
443            visitNode(t, n);
444        }
445    
446        protected void closingVisit(GroovySourceAST t) {
447            int n = Visitor.CLOSING_VISIT;
448            visitNode(t, n);
449        }
450        
451        public AST process(AST t) {
452            GroovySourceAST node = (GroovySourceAST) t;
453            
454            // process each node in turn
455            setUp(node);
456            accept(node);
457            acceptSiblings(node);
458            tearDown(node);
459            return null;
460        }    
461    }