src/share/classes/com/sun/tools/javac/tree/JCTree.java

Wed, 14 Sep 2011 12:07:50 -0700

author
jjg
date
Wed, 14 Sep 2011 12:07:50 -0700
changeset 1089
0f3da6af9799
parent 969
8cc5b440fdde
child 1091
a6e2c1840ea1
permissions
-rw-r--r--

7080267: Call to toString() from an ExpressionStatementTree doesn't take in consideration the ";" at the end
Reviewed-by: mcimadamore

     1 /*
     2  * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Oracle in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22  * or visit www.oracle.com if you need additional information or have any
    23  * questions.
    24  */
    26 package com.sun.tools.javac.tree;
    28 import java.util.*;
    30 import java.io.IOException;
    31 import java.io.StringWriter;
    32 import javax.lang.model.element.Modifier;
    33 import javax.lang.model.type.TypeKind;
    34 import javax.tools.JavaFileObject;
    36 import com.sun.tools.javac.util.*;
    37 import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition;
    38 import com.sun.tools.javac.util.List;
    39 import com.sun.tools.javac.code.*;
    40 import com.sun.tools.javac.code.Scope.*;
    41 import com.sun.tools.javac.code.Symbol.*;
    42 import com.sun.source.tree.*;
    44 import static com.sun.tools.javac.code.BoundKind.*;
    46 /**
    47  * Root class for abstract syntax tree nodes. It provides definitions
    48  * for specific tree nodes as subclasses nested inside.
    49  *
    50  * <p>Each subclass is highly standardized.  It generally contains
    51  * only tree fields for the syntactic subcomponents of the node.  Some
    52  * classes that represent identifier uses or definitions also define a
    53  * Symbol field that denotes the represented identifier.  Classes for
    54  * non-local jumps also carry the jump target as a field.  The root
    55  * class Tree itself defines fields for the tree's type and position.
    56  * No other fields are kept in a tree node; instead parameters are
    57  * passed to methods accessing the node.
    58  *
    59  * <p>Except for the methods defined by com.sun.source, the only
    60  * method defined in subclasses is `visit' which applies a given
    61  * visitor to the tree. The actual tree processing is done by visitor
    62  * classes in other packages. The abstract class Visitor, as well as
    63  * an Factory interface for trees, are defined as inner classes in
    64  * Tree.
    65  *
    66  * <p>To avoid ambiguities with the Tree API in com.sun.source all sub
    67  * classes should, by convention, start with JC (javac).
    68  *
    69  * <p><b>This is NOT part of any supported API.
    70  * If you write code that depends on this, you do so at your own risk.
    71  * This code and its internal interfaces are subject to change or
    72  * deletion without notice.</b>
    73  *
    74  * @see TreeMaker
    75  * @see TreeInfo
    76  * @see TreeTranslator
    77  * @see Pretty
    78  */
    79 public abstract class JCTree implements Tree, Cloneable, DiagnosticPosition {
    81     /* Tree tag values, identifying kinds of trees */
    83     /** Toplevel nodes, of type TopLevel, representing entire source files.
    84      */
    85     public static final int  TOPLEVEL = 1;
    87     /** Import clauses, of type Import.
    88      */
    89     public static final int IMPORT = TOPLEVEL + 1;
    91     /** Class definitions, of type ClassDef.
    92      */
    93     public static final int CLASSDEF = IMPORT + 1;
    95     /** Method definitions, of type MethodDef.
    96      */
    97     public static final int METHODDEF = CLASSDEF + 1;
    99     /** Variable definitions, of type VarDef.
   100      */
   101     public static final int VARDEF = METHODDEF + 1;
   103     /** The no-op statement ";", of type Skip
   104      */
   105     public static final int SKIP = VARDEF + 1;
   107     /** Blocks, of type Block.
   108      */
   109     public static final int BLOCK = SKIP + 1;
   111     /** Do-while loops, of type DoLoop.
   112      */
   113     public static final int DOLOOP = BLOCK + 1;
   115     /** While-loops, of type WhileLoop.
   116      */
   117     public static final int WHILELOOP = DOLOOP + 1;
   119     /** For-loops, of type ForLoop.
   120      */
   121     public static final int FORLOOP = WHILELOOP + 1;
   123     /** Foreach-loops, of type ForeachLoop.
   124      */
   125     public static final int FOREACHLOOP = FORLOOP + 1;
   127     /** Labelled statements, of type Labelled.
   128      */
   129     public static final int LABELLED = FOREACHLOOP + 1;
   131     /** Switch statements, of type Switch.
   132      */
   133     public static final int SWITCH = LABELLED + 1;
   135     /** Case parts in switch statements, of type Case.
   136      */
   137     public static final int CASE = SWITCH + 1;
   139     /** Synchronized statements, of type Synchonized.
   140      */
   141     public static final int SYNCHRONIZED = CASE + 1;
   143     /** Try statements, of type Try.
   144      */
   145     public static final int TRY = SYNCHRONIZED + 1;
   147     /** Catch clauses in try statements, of type Catch.
   148      */
   149     public static final int CATCH = TRY + 1;
   151     /** Conditional expressions, of type Conditional.
   152      */
   153     public static final int CONDEXPR = CATCH + 1;
   155     /** Conditional statements, of type If.
   156      */
   157     public static final int IF = CONDEXPR + 1;
   159     /** Expression statements, of type Exec.
   160      */
   161     public static final int EXEC = IF + 1;
   163     /** Break statements, of type Break.
   164      */
   165     public static final int BREAK = EXEC + 1;
   167     /** Continue statements, of type Continue.
   168      */
   169     public static final int CONTINUE = BREAK + 1;
   171     /** Return statements, of type Return.
   172      */
   173     public static final int RETURN = CONTINUE + 1;
   175     /** Throw statements, of type Throw.
   176      */
   177     public static final int THROW = RETURN + 1;
   179     /** Assert statements, of type Assert.
   180      */
   181     public static final int ASSERT = THROW + 1;
   183     /** Method invocation expressions, of type Apply.
   184      */
   185     public static final int APPLY = ASSERT + 1;
   187     /** Class instance creation expressions, of type NewClass.
   188      */
   189     public static final int NEWCLASS = APPLY + 1;
   191     /** Array creation expressions, of type NewArray.
   192      */
   193     public static final int NEWARRAY = NEWCLASS + 1;
   195     /** Parenthesized subexpressions, of type Parens.
   196      */
   197     public static final int PARENS = NEWARRAY + 1;
   199     /** Assignment expressions, of type Assign.
   200      */
   201     public static final int ASSIGN = PARENS + 1;
   203     /** Type cast expressions, of type TypeCast.
   204      */
   205     public static final int TYPECAST = ASSIGN + 1;
   207     /** Type test expressions, of type TypeTest.
   208      */
   209     public static final int TYPETEST = TYPECAST + 1;
   211     /** Indexed array expressions, of type Indexed.
   212      */
   213     public static final int INDEXED = TYPETEST + 1;
   215     /** Selections, of type Select.
   216      */
   217     public static final int SELECT = INDEXED + 1;
   219     /** Simple identifiers, of type Ident.
   220      */
   221     public static final int IDENT = SELECT + 1;
   223     /** Literals, of type Literal.
   224      */
   225     public static final int LITERAL = IDENT + 1;
   227     /** Basic type identifiers, of type TypeIdent.
   228      */
   229     public static final int TYPEIDENT = LITERAL + 1;
   231     /** Array types, of type TypeArray.
   232      */
   233     public static final int TYPEARRAY = TYPEIDENT + 1;
   235     /** Parameterized types, of type TypeApply.
   236      */
   237     public static final int TYPEAPPLY = TYPEARRAY + 1;
   239     /** Union types, of type TypeUnion
   240      */
   241     public static final int TYPEUNION = TYPEAPPLY + 1;
   243     /** Formal type parameters, of type TypeParameter.
   244      */
   245     public static final int TYPEPARAMETER = TYPEUNION + 1;
   247     /** Type argument.
   248      */
   249     public static final int WILDCARD = TYPEPARAMETER + 1;
   251     /** Bound kind: extends, super, exact, or unbound
   252      */
   253     public static final int TYPEBOUNDKIND = WILDCARD + 1;
   255     /** metadata: Annotation.
   256      */
   257     public static final int ANNOTATION = TYPEBOUNDKIND + 1;
   259     /** metadata: Modifiers
   260      */
   261     public static final int MODIFIERS = ANNOTATION + 1;
   263     public static final int ANNOTATED_TYPE = MODIFIERS + 1;
   265     /** Error trees, of type Erroneous.
   266      */
   267     public static final int ERRONEOUS = ANNOTATED_TYPE + 1;
   269     /** Unary operators, of type Unary.
   270      */
   271     public static final int POS = ERRONEOUS + 1;             // +
   272     public static final int NEG = POS + 1;                   // -
   273     public static final int NOT = NEG + 1;                   // !
   274     public static final int COMPL = NOT + 1;                 // ~
   275     public static final int PREINC = COMPL + 1;              // ++ _
   276     public static final int PREDEC = PREINC + 1;             // -- _
   277     public static final int POSTINC = PREDEC + 1;            // _ ++
   278     public static final int POSTDEC = POSTINC + 1;           // _ --
   280     /** unary operator for null reference checks, only used internally.
   281      */
   282     public static final int NULLCHK = POSTDEC + 1;
   284     /** Binary operators, of type Binary.
   285      */
   286     public static final int OR = NULLCHK + 1;                // ||
   287     public static final int AND = OR + 1;                    // &&
   288     public static final int BITOR = AND + 1;                 // |
   289     public static final int BITXOR = BITOR + 1;              // ^
   290     public static final int BITAND = BITXOR + 1;             // &
   291     public static final int EQ = BITAND + 1;                 // ==
   292     public static final int NE = EQ + 1;                     // !=
   293     public static final int LT = NE + 1;                     // <
   294     public static final int GT = LT + 1;                     // >
   295     public static final int LE = GT + 1;                     // <=
   296     public static final int GE = LE + 1;                     // >=
   297     public static final int SL = GE + 1;                     // <<
   298     public static final int SR = SL + 1;                     // >>
   299     public static final int USR = SR + 1;                    // >>>
   300     public static final int PLUS = USR + 1;                  // +
   301     public static final int MINUS = PLUS + 1;                // -
   302     public static final int MUL = MINUS + 1;                 // *
   303     public static final int DIV = MUL + 1;                   // /
   304     public static final int MOD = DIV + 1;                   // %
   306     /** Assignment operators, of type Assignop.
   307      */
   308     public static final int BITOR_ASG = MOD + 1;             // |=
   309     public static final int BITXOR_ASG = BITOR_ASG + 1;      // ^=
   310     public static final int BITAND_ASG = BITXOR_ASG + 1;     // &=
   312     public static final int SL_ASG = SL + BITOR_ASG - BITOR; // <<=
   313     public static final int SR_ASG = SL_ASG + 1;             // >>=
   314     public static final int USR_ASG = SR_ASG + 1;            // >>>=
   315     public static final int PLUS_ASG = USR_ASG + 1;          // +=
   316     public static final int MINUS_ASG = PLUS_ASG + 1;        // -=
   317     public static final int MUL_ASG = MINUS_ASG + 1;         // *=
   318     public static final int DIV_ASG = MUL_ASG + 1;           // /=
   319     public static final int MOD_ASG = DIV_ASG + 1;           // %=
   321     /** A synthetic let expression, of type LetExpr.
   322      */
   323     public static final int LETEXPR = MOD_ASG + 1;           // ala scheme
   326     /** The offset between assignment operators and normal operators.
   327      */
   328     public static final int ASGOffset = BITOR_ASG - BITOR;
   330     /* The (encoded) position in the source file. @see util.Position.
   331      */
   332     public int pos;
   334     /* The type of this node.
   335      */
   336     public Type type;
   338     /* The tag of this node -- one of the constants declared above.
   339      */
   340     public abstract int getTag();
   342     /** Convert a tree to a pretty-printed string. */
   343     @Override
   344     public String toString() {
   345         StringWriter s = new StringWriter();
   346         try {
   347             new Pretty(s, false).printExpr(this);
   348         }
   349         catch (IOException e) {
   350             // should never happen, because StringWriter is defined
   351             // never to throw any IOExceptions
   352             throw new AssertionError(e);
   353         }
   354         return s.toString();
   355     }
   357     /** Set position field and return this tree.
   358      */
   359     public JCTree setPos(int pos) {
   360         this.pos = pos;
   361         return this;
   362     }
   364     /** Set type field and return this tree.
   365      */
   366     public JCTree setType(Type type) {
   367         this.type = type;
   368         return this;
   369     }
   371     /** Visit this tree with a given visitor.
   372      */
   373     public abstract void accept(Visitor v);
   375     public abstract <R,D> R accept(TreeVisitor<R,D> v, D d);
   377     /** Return a shallow copy of this tree.
   378      */
   379     @Override
   380     public Object clone() {
   381         try {
   382             return super.clone();
   383         } catch(CloneNotSupportedException e) {
   384             throw new RuntimeException(e);
   385         }
   386     }
   388     /** Get a default position for this tree node.
   389      */
   390     public DiagnosticPosition pos() {
   391         return this;
   392     }
   394     // for default DiagnosticPosition
   395     public JCTree getTree() {
   396         return this;
   397     }
   399     // for default DiagnosticPosition
   400     public int getStartPosition() {
   401         return TreeInfo.getStartPos(this);
   402     }
   404     // for default DiagnosticPosition
   405     public int getPreferredPosition() {
   406         return pos;
   407     }
   409     // for default DiagnosticPosition
   410     public int getEndPosition(Map<JCTree, Integer> endPosTable) {
   411         return TreeInfo.getEndPos(this, endPosTable);
   412     }
   414     /**
   415      * Everything in one source file is kept in a TopLevel structure.
   416      * @param pid              The tree representing the package clause.
   417      * @param sourcefile       The source file name.
   418      * @param defs             All definitions in this file (ClassDef, Import, and Skip)
   419      * @param packge           The package it belongs to.
   420      * @param namedImportScope A scope for all named imports.
   421      * @param starImportScope  A scope for all import-on-demands.
   422      * @param lineMap          Line starting positions, defined only
   423      *                         if option -g is set.
   424      * @param docComments      A hashtable that stores all documentation comments
   425      *                         indexed by the tree nodes they refer to.
   426      *                         defined only if option -s is set.
   427      * @param endPositions     A hashtable that stores ending positions of source
   428      *                         ranges indexed by the tree nodes they belong to.
   429      *                         Defined only if option -Xjcov is set.
   430      */
   431     public static class JCCompilationUnit extends JCTree implements CompilationUnitTree {
   432         public List<JCAnnotation> packageAnnotations;
   433         public JCExpression pid;
   434         public List<JCTree> defs;
   435         public JavaFileObject sourcefile;
   436         public PackageSymbol packge;
   437         public ImportScope namedImportScope;
   438         public StarImportScope starImportScope;
   439         public long flags;
   440         public Position.LineMap lineMap = null;
   441         public Map<JCTree, String> docComments = null;
   442         public Map<JCTree, Integer> endPositions = null;
   443         protected JCCompilationUnit(List<JCAnnotation> packageAnnotations,
   444                         JCExpression pid,
   445                         List<JCTree> defs,
   446                         JavaFileObject sourcefile,
   447                         PackageSymbol packge,
   448                         ImportScope namedImportScope,
   449                         StarImportScope starImportScope) {
   450             this.packageAnnotations = packageAnnotations;
   451             this.pid = pid;
   452             this.defs = defs;
   453             this.sourcefile = sourcefile;
   454             this.packge = packge;
   455             this.namedImportScope = namedImportScope;
   456             this.starImportScope = starImportScope;
   457         }
   458         @Override
   459         public void accept(Visitor v) { v.visitTopLevel(this); }
   461         public Kind getKind() { return Kind.COMPILATION_UNIT; }
   462         public List<JCAnnotation> getPackageAnnotations() {
   463             return packageAnnotations;
   464         }
   465         public List<JCImport> getImports() {
   466             ListBuffer<JCImport> imports = new ListBuffer<JCImport>();
   467             for (JCTree tree : defs) {
   468                 int tag = tree.getTag();
   469                 if (tag == IMPORT)
   470                     imports.append((JCImport)tree);
   471                 else if (tag != SKIP)
   472                     break;
   473             }
   474             return imports.toList();
   475         }
   476         public JCExpression getPackageName() { return pid; }
   477         public JavaFileObject getSourceFile() {
   478             return sourcefile;
   479         }
   480         public Position.LineMap getLineMap() {
   481             return lineMap;
   482         }
   483         public List<JCTree> getTypeDecls() {
   484             List<JCTree> typeDefs;
   485             for (typeDefs = defs; !typeDefs.isEmpty(); typeDefs = typeDefs.tail)
   486                 if (typeDefs.head.getTag() != IMPORT)
   487                     break;
   488             return typeDefs;
   489         }
   490         @Override
   491         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   492             return v.visitCompilationUnit(this, d);
   493         }
   495         @Override
   496         public int getTag() {
   497             return TOPLEVEL;
   498         }
   499     }
   501     /**
   502      * An import clause.
   503      * @param qualid    The imported class(es).
   504      */
   505     public static class JCImport extends JCTree implements ImportTree {
   506         public boolean staticImport;
   507         public JCTree qualid;
   508         protected JCImport(JCTree qualid, boolean importStatic) {
   509             this.qualid = qualid;
   510             this.staticImport = importStatic;
   511         }
   512         @Override
   513         public void accept(Visitor v) { v.visitImport(this); }
   515         public boolean isStatic() { return staticImport; }
   516         public JCTree getQualifiedIdentifier() { return qualid; }
   518         public Kind getKind() { return Kind.IMPORT; }
   519         @Override
   520         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   521             return v.visitImport(this, d);
   522         }
   524         @Override
   525         public int getTag() {
   526             return IMPORT;
   527         }
   528     }
   530     public static abstract class JCStatement extends JCTree implements StatementTree {
   531         @Override
   532         public JCStatement setType(Type type) {
   533             super.setType(type);
   534             return this;
   535         }
   536         @Override
   537         public JCStatement setPos(int pos) {
   538             super.setPos(pos);
   539             return this;
   540         }
   542         /** Convert a statement tree to a pretty-printed string. */
   543         @Override
   544         public String toString() {
   545             StringWriter s = new StringWriter();
   546             try {
   547                 new Pretty(s, false).printStat(this);
   548             }
   549             catch (IOException e) {
   550                 // should never happen, because StringWriter is defined
   551                 // never to throw any IOExceptions
   552                 throw new AssertionError(e);
   553             }
   554             return s.toString();
   555         }
   556     }
   558     public static abstract class JCExpression extends JCTree implements ExpressionTree {
   559         @Override
   560         public JCExpression setType(Type type) {
   561             super.setType(type);
   562             return this;
   563         }
   564         @Override
   565         public JCExpression setPos(int pos) {
   566             super.setPos(pos);
   567             return this;
   568         }
   569     }
   571     /**
   572      * A class definition.
   573      * @param modifiers the modifiers
   574      * @param name the name of the class
   575      * @param typarams formal class parameters
   576      * @param extending the classes this class extends
   577      * @param implementing the interfaces implemented by this class
   578      * @param defs all variables and methods defined in this class
   579      * @param sym the symbol
   580      */
   581     public static class JCClassDecl extends JCStatement implements ClassTree {
   582         public JCModifiers mods;
   583         public Name name;
   584         public List<JCTypeParameter> typarams;
   585         public JCExpression extending;
   586         public List<JCExpression> implementing;
   587         public List<JCTree> defs;
   588         public ClassSymbol sym;
   589         protected JCClassDecl(JCModifiers mods,
   590                            Name name,
   591                            List<JCTypeParameter> typarams,
   592                            JCExpression extending,
   593                            List<JCExpression> implementing,
   594                            List<JCTree> defs,
   595                            ClassSymbol sym)
   596         {
   597             this.mods = mods;
   598             this.name = name;
   599             this.typarams = typarams;
   600             this.extending = extending;
   601             this.implementing = implementing;
   602             this.defs = defs;
   603             this.sym = sym;
   604         }
   605         @Override
   606         public void accept(Visitor v) { v.visitClassDef(this); }
   608         public Kind getKind() {
   609             if ((mods.flags & Flags.ANNOTATION) != 0)
   610                 return Kind.ANNOTATION_TYPE;
   611             else if ((mods.flags & Flags.INTERFACE) != 0)
   612                 return Kind.INTERFACE;
   613             else if ((mods.flags & Flags.ENUM) != 0)
   614                 return Kind.ENUM;
   615             else
   616                 return Kind.CLASS;
   617         }
   619         public JCModifiers getModifiers() { return mods; }
   620         public Name getSimpleName() { return name; }
   621         public List<JCTypeParameter> getTypeParameters() {
   622             return typarams;
   623         }
   624         public JCTree getExtendsClause() { return extending; }
   625         public List<JCExpression> getImplementsClause() {
   626             return implementing;
   627         }
   628         public List<JCTree> getMembers() {
   629             return defs;
   630         }
   631         @Override
   632         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   633             return v.visitClass(this, d);
   634         }
   636         @Override
   637         public int getTag() {
   638             return CLASSDEF;
   639         }
   640     }
   642     /**
   643      * A method definition.
   644      * @param modifiers method modifiers
   645      * @param name method name
   646      * @param restype type of method return value
   647      * @param typarams type parameters
   648      * @param params value parameters
   649      * @param thrown exceptions thrown by this method
   650      * @param stats statements in the method
   651      * @param sym method symbol
   652      */
   653     public static class JCMethodDecl extends JCTree implements MethodTree {
   654         public JCModifiers mods;
   655         public Name name;
   656         public JCExpression restype;
   657         public List<JCTypeParameter> typarams;
   658         public List<JCVariableDecl> params;
   659         public List<JCExpression> thrown;
   660         public JCBlock body;
   661         public JCExpression defaultValue; // for annotation types
   662         public MethodSymbol sym;
   663         protected JCMethodDecl(JCModifiers mods,
   664                             Name name,
   665                             JCExpression restype,
   666                             List<JCTypeParameter> typarams,
   667                             List<JCVariableDecl> params,
   668                             List<JCExpression> thrown,
   669                             JCBlock body,
   670                             JCExpression defaultValue,
   671                             MethodSymbol sym)
   672         {
   673             this.mods = mods;
   674             this.name = name;
   675             this.restype = restype;
   676             this.typarams = typarams;
   677             this.params = params;
   678             this.thrown = thrown;
   679             this.body = body;
   680             this.defaultValue = defaultValue;
   681             this.sym = sym;
   682         }
   683         @Override
   684         public void accept(Visitor v) { v.visitMethodDef(this); }
   686         public Kind getKind() { return Kind.METHOD; }
   687         public JCModifiers getModifiers() { return mods; }
   688         public Name getName() { return name; }
   689         public JCTree getReturnType() { return restype; }
   690         public List<JCTypeParameter> getTypeParameters() {
   691             return typarams;
   692         }
   693         public List<JCVariableDecl> getParameters() {
   694             return params;
   695         }
   696         public List<JCExpression> getThrows() {
   697             return thrown;
   698         }
   699         public JCBlock getBody() { return body; }
   700         public JCTree getDefaultValue() { // for annotation types
   701             return defaultValue;
   702         }
   703         @Override
   704         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   705             return v.visitMethod(this, d);
   706         }
   708         @Override
   709         public int getTag() {
   710             return METHODDEF;
   711         }
   712   }
   714     /**
   715      * A variable definition.
   716      * @param modifiers variable modifiers
   717      * @param name variable name
   718      * @param vartype type of the variable
   719      * @param init variables initial value
   720      * @param sym symbol
   721      */
   722     public static class JCVariableDecl extends JCStatement implements VariableTree {
   723         public JCModifiers mods;
   724         public Name name;
   725         public JCExpression vartype;
   726         public JCExpression init;
   727         public VarSymbol sym;
   728         protected JCVariableDecl(JCModifiers mods,
   729                          Name name,
   730                          JCExpression vartype,
   731                          JCExpression init,
   732                          VarSymbol sym) {
   733             this.mods = mods;
   734             this.name = name;
   735             this.vartype = vartype;
   736             this.init = init;
   737             this.sym = sym;
   738         }
   739         @Override
   740         public void accept(Visitor v) { v.visitVarDef(this); }
   742         public Kind getKind() { return Kind.VARIABLE; }
   743         public JCModifiers getModifiers() { return mods; }
   744         public Name getName() { return name; }
   745         public JCTree getType() { return vartype; }
   746         public JCExpression getInitializer() {
   747             return init;
   748         }
   749         @Override
   750         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   751             return v.visitVariable(this, d);
   752         }
   754         @Override
   755         public int getTag() {
   756             return VARDEF;
   757         }
   758     }
   760       /**
   761      * A no-op statement ";".
   762      */
   763     public static class JCSkip extends JCStatement implements EmptyStatementTree {
   764         protected JCSkip() {
   765         }
   766         @Override
   767         public void accept(Visitor v) { v.visitSkip(this); }
   769         public Kind getKind() { return Kind.EMPTY_STATEMENT; }
   770         @Override
   771         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   772             return v.visitEmptyStatement(this, d);
   773         }
   775         @Override
   776         public int getTag() {
   777             return SKIP;
   778         }
   779     }
   781     /**
   782      * A statement block.
   783      * @param stats statements
   784      * @param flags flags
   785      */
   786     public static class JCBlock extends JCStatement implements BlockTree {
   787         public long flags;
   788         public List<JCStatement> stats;
   789         /** Position of closing brace, optional. */
   790         public int endpos = Position.NOPOS;
   791         protected JCBlock(long flags, List<JCStatement> stats) {
   792             this.stats = stats;
   793             this.flags = flags;
   794         }
   795         @Override
   796         public void accept(Visitor v) { v.visitBlock(this); }
   798         public Kind getKind() { return Kind.BLOCK; }
   799         public List<JCStatement> getStatements() {
   800             return stats;
   801         }
   802         public boolean isStatic() { return (flags & Flags.STATIC) != 0; }
   803         @Override
   804         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   805             return v.visitBlock(this, d);
   806         }
   808         @Override
   809         public int getTag() {
   810             return BLOCK;
   811         }
   812     }
   814     /**
   815      * A do loop
   816      */
   817     public static class JCDoWhileLoop extends JCStatement implements DoWhileLoopTree {
   818         public JCStatement body;
   819         public JCExpression cond;
   820         protected JCDoWhileLoop(JCStatement body, JCExpression cond) {
   821             this.body = body;
   822             this.cond = cond;
   823         }
   824         @Override
   825         public void accept(Visitor v) { v.visitDoLoop(this); }
   827         public Kind getKind() { return Kind.DO_WHILE_LOOP; }
   828         public JCExpression getCondition() { return cond; }
   829         public JCStatement getStatement() { return body; }
   830         @Override
   831         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   832             return v.visitDoWhileLoop(this, d);
   833         }
   835         @Override
   836         public int getTag() {
   837             return DOLOOP;
   838         }
   839     }
   841     /**
   842      * A while loop
   843      */
   844     public static class JCWhileLoop extends JCStatement implements WhileLoopTree {
   845         public JCExpression cond;
   846         public JCStatement body;
   847         protected JCWhileLoop(JCExpression cond, JCStatement body) {
   848             this.cond = cond;
   849             this.body = body;
   850         }
   851         @Override
   852         public void accept(Visitor v) { v.visitWhileLoop(this); }
   854         public Kind getKind() { return Kind.WHILE_LOOP; }
   855         public JCExpression getCondition() { return cond; }
   856         public JCStatement getStatement() { return body; }
   857         @Override
   858         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   859             return v.visitWhileLoop(this, d);
   860         }
   862         @Override
   863         public int getTag() {
   864             return WHILELOOP;
   865         }
   866     }
   868     /**
   869      * A for loop.
   870      */
   871     public static class JCForLoop extends JCStatement implements ForLoopTree {
   872         public List<JCStatement> init;
   873         public JCExpression cond;
   874         public List<JCExpressionStatement> step;
   875         public JCStatement body;
   876         protected JCForLoop(List<JCStatement> init,
   877                           JCExpression cond,
   878                           List<JCExpressionStatement> update,
   879                           JCStatement body)
   880         {
   881             this.init = init;
   882             this.cond = cond;
   883             this.step = update;
   884             this.body = body;
   885         }
   886         @Override
   887         public void accept(Visitor v) { v.visitForLoop(this); }
   889         public Kind getKind() { return Kind.FOR_LOOP; }
   890         public JCExpression getCondition() { return cond; }
   891         public JCStatement getStatement() { return body; }
   892         public List<JCStatement> getInitializer() {
   893             return init;
   894         }
   895         public List<JCExpressionStatement> getUpdate() {
   896             return step;
   897         }
   898         @Override
   899         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   900             return v.visitForLoop(this, d);
   901         }
   903         @Override
   904         public int getTag() {
   905             return FORLOOP;
   906         }
   907     }
   909     /**
   910      * The enhanced for loop.
   911      */
   912     public static class JCEnhancedForLoop extends JCStatement implements EnhancedForLoopTree {
   913         public JCVariableDecl var;
   914         public JCExpression expr;
   915         public JCStatement body;
   916         protected JCEnhancedForLoop(JCVariableDecl var, JCExpression expr, JCStatement body) {
   917             this.var = var;
   918             this.expr = expr;
   919             this.body = body;
   920         }
   921         @Override
   922         public void accept(Visitor v) { v.visitForeachLoop(this); }
   924         public Kind getKind() { return Kind.ENHANCED_FOR_LOOP; }
   925         public JCVariableDecl getVariable() { return var; }
   926         public JCExpression getExpression() { return expr; }
   927         public JCStatement getStatement() { return body; }
   928         @Override
   929         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   930             return v.visitEnhancedForLoop(this, d);
   931         }
   932         @Override
   933         public int getTag() {
   934             return FOREACHLOOP;
   935         }
   936     }
   938     /**
   939      * A labelled expression or statement.
   940      */
   941     public static class JCLabeledStatement extends JCStatement implements LabeledStatementTree {
   942         public Name label;
   943         public JCStatement body;
   944         protected JCLabeledStatement(Name label, JCStatement body) {
   945             this.label = label;
   946             this.body = body;
   947         }
   948         @Override
   949         public void accept(Visitor v) { v.visitLabelled(this); }
   950         public Kind getKind() { return Kind.LABELED_STATEMENT; }
   951         public Name getLabel() { return label; }
   952         public JCStatement getStatement() { return body; }
   953         @Override
   954         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   955             return v.visitLabeledStatement(this, d);
   956         }
   957         @Override
   958         public int getTag() {
   959             return LABELLED;
   960         }
   961     }
   963     /**
   964      * A "switch ( ) { }" construction.
   965      */
   966     public static class JCSwitch extends JCStatement implements SwitchTree {
   967         public JCExpression selector;
   968         public List<JCCase> cases;
   969         protected JCSwitch(JCExpression selector, List<JCCase> cases) {
   970             this.selector = selector;
   971             this.cases = cases;
   972         }
   973         @Override
   974         public void accept(Visitor v) { v.visitSwitch(this); }
   976         public Kind getKind() { return Kind.SWITCH; }
   977         public JCExpression getExpression() { return selector; }
   978         public List<JCCase> getCases() { return cases; }
   979         @Override
   980         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
   981             return v.visitSwitch(this, d);
   982         }
   983         @Override
   984         public int getTag() {
   985             return SWITCH;
   986         }
   987     }
   989     /**
   990      * A "case  :" of a switch.
   991      */
   992     public static class JCCase extends JCStatement implements CaseTree {
   993         public JCExpression pat;
   994         public List<JCStatement> stats;
   995         protected JCCase(JCExpression pat, List<JCStatement> stats) {
   996             this.pat = pat;
   997             this.stats = stats;
   998         }
   999         @Override
  1000         public void accept(Visitor v) { v.visitCase(this); }
  1002         public Kind getKind() { return Kind.CASE; }
  1003         public JCExpression getExpression() { return pat; }
  1004         public List<JCStatement> getStatements() { return stats; }
  1005         @Override
  1006         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1007             return v.visitCase(this, d);
  1009         @Override
  1010         public int getTag() {
  1011             return CASE;
  1015     /**
  1016      * A synchronized block.
  1017      */
  1018     public static class JCSynchronized extends JCStatement implements SynchronizedTree {
  1019         public JCExpression lock;
  1020         public JCBlock body;
  1021         protected JCSynchronized(JCExpression lock, JCBlock body) {
  1022             this.lock = lock;
  1023             this.body = body;
  1025         @Override
  1026         public void accept(Visitor v) { v.visitSynchronized(this); }
  1028         public Kind getKind() { return Kind.SYNCHRONIZED; }
  1029         public JCExpression getExpression() { return lock; }
  1030         public JCBlock getBlock() { return body; }
  1031         @Override
  1032         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1033             return v.visitSynchronized(this, d);
  1035         @Override
  1036         public int getTag() {
  1037             return SYNCHRONIZED;
  1041     /**
  1042      * A "try { } catch ( ) { } finally { }" block.
  1043      */
  1044     public static class JCTry extends JCStatement implements TryTree {
  1045         public JCBlock body;
  1046         public List<JCCatch> catchers;
  1047         public JCBlock finalizer;
  1048         public List<JCTree> resources;
  1049         protected JCTry(List<JCTree> resources,
  1050                         JCBlock body,
  1051                         List<JCCatch> catchers,
  1052                         JCBlock finalizer) {
  1053             this.body = body;
  1054             this.catchers = catchers;
  1055             this.finalizer = finalizer;
  1056             this.resources = resources;
  1058         @Override
  1059         public void accept(Visitor v) { v.visitTry(this); }
  1061         public Kind getKind() { return Kind.TRY; }
  1062         public JCBlock getBlock() { return body; }
  1063         public List<JCCatch> getCatches() {
  1064             return catchers;
  1066         public JCBlock getFinallyBlock() { return finalizer; }
  1067         @Override
  1068         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1069             return v.visitTry(this, d);
  1071         @Override
  1072         public List<? extends JCTree> getResources() {
  1073             return resources;
  1075         @Override
  1076         public int getTag() {
  1077             return TRY;
  1081     /**
  1082      * A catch block.
  1083      */
  1084     public static class JCCatch extends JCTree implements CatchTree {
  1085         public JCVariableDecl param;
  1086         public JCBlock body;
  1087         protected JCCatch(JCVariableDecl param, JCBlock body) {
  1088             this.param = param;
  1089             this.body = body;
  1091         @Override
  1092         public void accept(Visitor v) { v.visitCatch(this); }
  1094         public Kind getKind() { return Kind.CATCH; }
  1095         public JCVariableDecl getParameter() { return param; }
  1096         public JCBlock getBlock() { return body; }
  1097         @Override
  1098         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1099             return v.visitCatch(this, d);
  1101         @Override
  1102         public int getTag() {
  1103             return CATCH;
  1107     /**
  1108      * A ( ) ? ( ) : ( ) conditional expression
  1109      */
  1110     public static class JCConditional extends JCExpression implements ConditionalExpressionTree {
  1111         public JCExpression cond;
  1112         public JCExpression truepart;
  1113         public JCExpression falsepart;
  1114         protected JCConditional(JCExpression cond,
  1115                               JCExpression truepart,
  1116                               JCExpression falsepart)
  1118             this.cond = cond;
  1119             this.truepart = truepart;
  1120             this.falsepart = falsepart;
  1122         @Override
  1123         public void accept(Visitor v) { v.visitConditional(this); }
  1125         public Kind getKind() { return Kind.CONDITIONAL_EXPRESSION; }
  1126         public JCExpression getCondition() { return cond; }
  1127         public JCExpression getTrueExpression() { return truepart; }
  1128         public JCExpression getFalseExpression() { return falsepart; }
  1129         @Override
  1130         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1131             return v.visitConditionalExpression(this, d);
  1133         @Override
  1134         public int getTag() {
  1135             return CONDEXPR;
  1139     /**
  1140      * An "if ( ) { } else { }" block
  1141      */
  1142     public static class JCIf extends JCStatement implements IfTree {
  1143         public JCExpression cond;
  1144         public JCStatement thenpart;
  1145         public JCStatement elsepart;
  1146         protected JCIf(JCExpression cond,
  1147                      JCStatement thenpart,
  1148                      JCStatement elsepart)
  1150             this.cond = cond;
  1151             this.thenpart = thenpart;
  1152             this.elsepart = elsepart;
  1154         @Override
  1155         public void accept(Visitor v) { v.visitIf(this); }
  1157         public Kind getKind() { return Kind.IF; }
  1158         public JCExpression getCondition() { return cond; }
  1159         public JCStatement getThenStatement() { return thenpart; }
  1160         public JCStatement getElseStatement() { return elsepart; }
  1161         @Override
  1162         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1163             return v.visitIf(this, d);
  1165         @Override
  1166         public int getTag() {
  1167             return IF;
  1171     /**
  1172      * an expression statement
  1173      * @param expr expression structure
  1174      */
  1175     public static class JCExpressionStatement extends JCStatement implements ExpressionStatementTree {
  1176         public JCExpression expr;
  1177         protected JCExpressionStatement(JCExpression expr)
  1179             this.expr = expr;
  1181         @Override
  1182         public void accept(Visitor v) { v.visitExec(this); }
  1184         public Kind getKind() { return Kind.EXPRESSION_STATEMENT; }
  1185         public JCExpression getExpression() { return expr; }
  1186         @Override
  1187         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1188             return v.visitExpressionStatement(this, d);
  1190         @Override
  1191         public int getTag() {
  1192             return EXEC;
  1196     /**
  1197      * A break from a loop or switch.
  1198      */
  1199     public static class JCBreak extends JCStatement implements BreakTree {
  1200         public Name label;
  1201         public JCTree target;
  1202         protected JCBreak(Name label, JCTree target) {
  1203             this.label = label;
  1204             this.target = target;
  1206         @Override
  1207         public void accept(Visitor v) { v.visitBreak(this); }
  1209         public Kind getKind() { return Kind.BREAK; }
  1210         public Name getLabel() { return label; }
  1211         @Override
  1212         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1213             return v.visitBreak(this, d);
  1215         @Override
  1216         public int getTag() {
  1217             return BREAK;
  1221     /**
  1222      * A continue of a loop.
  1223      */
  1224     public static class JCContinue extends JCStatement implements ContinueTree {
  1225         public Name label;
  1226         public JCTree target;
  1227         protected JCContinue(Name label, JCTree target) {
  1228             this.label = label;
  1229             this.target = target;
  1231         @Override
  1232         public void accept(Visitor v) { v.visitContinue(this); }
  1234         public Kind getKind() { return Kind.CONTINUE; }
  1235         public Name getLabel() { return label; }
  1236         @Override
  1237         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1238             return v.visitContinue(this, d);
  1240         @Override
  1241         public int getTag() {
  1242             return CONTINUE;
  1246     /**
  1247      * A return statement.
  1248      */
  1249     public static class JCReturn extends JCStatement implements ReturnTree {
  1250         public JCExpression expr;
  1251         protected JCReturn(JCExpression expr) {
  1252             this.expr = expr;
  1254         @Override
  1255         public void accept(Visitor v) { v.visitReturn(this); }
  1257         public Kind getKind() { return Kind.RETURN; }
  1258         public JCExpression getExpression() { return expr; }
  1259         @Override
  1260         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1261             return v.visitReturn(this, d);
  1263         @Override
  1264         public int getTag() {
  1265             return RETURN;
  1269     /**
  1270      * A throw statement.
  1271      */
  1272     public static class JCThrow extends JCStatement implements ThrowTree {
  1273         public JCExpression expr;
  1274         protected JCThrow(JCTree expr) {
  1275             this.expr = (JCExpression)expr;
  1277         @Override
  1278         public void accept(Visitor v) { v.visitThrow(this); }
  1280         public Kind getKind() { return Kind.THROW; }
  1281         public JCExpression getExpression() { return expr; }
  1282         @Override
  1283         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1284             return v.visitThrow(this, d);
  1286         @Override
  1287         public int getTag() {
  1288             return THROW;
  1292     /**
  1293      * An assert statement.
  1294      */
  1295     public static class JCAssert extends JCStatement implements AssertTree {
  1296         public JCExpression cond;
  1297         public JCExpression detail;
  1298         protected JCAssert(JCExpression cond, JCExpression detail) {
  1299             this.cond = cond;
  1300             this.detail = detail;
  1302         @Override
  1303         public void accept(Visitor v) { v.visitAssert(this); }
  1305         public Kind getKind() { return Kind.ASSERT; }
  1306         public JCExpression getCondition() { return cond; }
  1307         public JCExpression getDetail() { return detail; }
  1308         @Override
  1309         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1310             return v.visitAssert(this, d);
  1312         @Override
  1313         public int getTag() {
  1314             return ASSERT;
  1318     /**
  1319      * A method invocation
  1320      */
  1321     public static class JCMethodInvocation extends JCExpression implements MethodInvocationTree {
  1322         public List<JCExpression> typeargs;
  1323         public JCExpression meth;
  1324         public List<JCExpression> args;
  1325         public Type varargsElement;
  1326         protected JCMethodInvocation(List<JCExpression> typeargs,
  1327                         JCExpression meth,
  1328                         List<JCExpression> args)
  1330             this.typeargs = (typeargs == null) ? List.<JCExpression>nil()
  1331                                                : typeargs;
  1332             this.meth = meth;
  1333             this.args = args;
  1335         @Override
  1336         public void accept(Visitor v) { v.visitApply(this); }
  1338         public Kind getKind() { return Kind.METHOD_INVOCATION; }
  1339         public List<JCExpression> getTypeArguments() {
  1340             return typeargs;
  1342         public JCExpression getMethodSelect() { return meth; }
  1343         public List<JCExpression> getArguments() {
  1344             return args;
  1346         @Override
  1347         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1348             return v.visitMethodInvocation(this, d);
  1350         @Override
  1351         public JCMethodInvocation setType(Type type) {
  1352             super.setType(type);
  1353             return this;
  1355         @Override
  1356         public int getTag() {
  1357             return(APPLY);
  1361     /**
  1362      * A new(...) operation.
  1363      */
  1364     public static class JCNewClass extends JCExpression implements NewClassTree {
  1365         public JCExpression encl;
  1366         public List<JCExpression> typeargs;
  1367         public JCExpression clazz;
  1368         public List<JCExpression> args;
  1369         public JCClassDecl def;
  1370         public Symbol constructor;
  1371         public Type varargsElement;
  1372         public Type constructorType;
  1373         protected JCNewClass(JCExpression encl,
  1374                            List<JCExpression> typeargs,
  1375                            JCExpression clazz,
  1376                            List<JCExpression> args,
  1377                            JCClassDecl def)
  1379             this.encl = encl;
  1380             this.typeargs = (typeargs == null) ? List.<JCExpression>nil()
  1381                                                : typeargs;
  1382             this.clazz = clazz;
  1383             this.args = args;
  1384             this.def = def;
  1386         @Override
  1387         public void accept(Visitor v) { v.visitNewClass(this); }
  1389         public Kind getKind() { return Kind.NEW_CLASS; }
  1390         public JCExpression getEnclosingExpression() { // expr.new C< ... > ( ... )
  1391             return encl;
  1393         public List<JCExpression> getTypeArguments() {
  1394             return typeargs;
  1396         public JCExpression getIdentifier() { return clazz; }
  1397         public List<JCExpression> getArguments() {
  1398             return args;
  1400         public JCClassDecl getClassBody() { return def; }
  1401         @Override
  1402         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1403             return v.visitNewClass(this, d);
  1405         @Override
  1406         public int getTag() {
  1407             return NEWCLASS;
  1411     /**
  1412      * A new[...] operation.
  1413      */
  1414     public static class JCNewArray extends JCExpression implements NewArrayTree {
  1415         public JCExpression elemtype;
  1416         public List<JCExpression> dims;
  1417         public List<JCExpression> elems;
  1418         protected JCNewArray(JCExpression elemtype,
  1419                            List<JCExpression> dims,
  1420                            List<JCExpression> elems)
  1422             this.elemtype = elemtype;
  1423             this.dims = dims;
  1424             this.elems = elems;
  1426         @Override
  1427         public void accept(Visitor v) { v.visitNewArray(this); }
  1429         public Kind getKind() { return Kind.NEW_ARRAY; }
  1430         public JCExpression getType() { return elemtype; }
  1431         public List<JCExpression> getDimensions() {
  1432             return dims;
  1434         public List<JCExpression> getInitializers() {
  1435             return elems;
  1437         @Override
  1438         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1439             return v.visitNewArray(this, d);
  1441         @Override
  1442         public int getTag() {
  1443             return NEWARRAY;
  1447     /**
  1448      * A parenthesized subexpression ( ... )
  1449      */
  1450     public static class JCParens extends JCExpression implements ParenthesizedTree {
  1451         public JCExpression expr;
  1452         protected JCParens(JCExpression expr) {
  1453             this.expr = expr;
  1455         @Override
  1456         public void accept(Visitor v) { v.visitParens(this); }
  1458         public Kind getKind() { return Kind.PARENTHESIZED; }
  1459         public JCExpression getExpression() { return expr; }
  1460         @Override
  1461         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1462             return v.visitParenthesized(this, d);
  1464         @Override
  1465         public int getTag() {
  1466             return PARENS;
  1470     /**
  1471      * A assignment with "=".
  1472      */
  1473     public static class JCAssign extends JCExpression implements AssignmentTree {
  1474         public JCExpression lhs;
  1475         public JCExpression rhs;
  1476         protected JCAssign(JCExpression lhs, JCExpression rhs) {
  1477             this.lhs = lhs;
  1478             this.rhs = rhs;
  1480         @Override
  1481         public void accept(Visitor v) { v.visitAssign(this); }
  1483         public Kind getKind() { return Kind.ASSIGNMENT; }
  1484         public JCExpression getVariable() { return lhs; }
  1485         public JCExpression getExpression() { return rhs; }
  1486         @Override
  1487         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1488             return v.visitAssignment(this, d);
  1490         @Override
  1491         public int getTag() {
  1492             return ASSIGN;
  1496     /**
  1497      * An assignment with "+=", "|=" ...
  1498      */
  1499     public static class JCAssignOp extends JCExpression implements CompoundAssignmentTree {
  1500         private int opcode;
  1501         public JCExpression lhs;
  1502         public JCExpression rhs;
  1503         public Symbol operator;
  1504         protected JCAssignOp(int opcode, JCTree lhs, JCTree rhs, Symbol operator) {
  1505             this.opcode = opcode;
  1506             this.lhs = (JCExpression)lhs;
  1507             this.rhs = (JCExpression)rhs;
  1508             this.operator = operator;
  1510         @Override
  1511         public void accept(Visitor v) { v.visitAssignop(this); }
  1513         public Kind getKind() { return TreeInfo.tagToKind(getTag()); }
  1514         public JCExpression getVariable() { return lhs; }
  1515         public JCExpression getExpression() { return rhs; }
  1516         public Symbol getOperator() {
  1517             return operator;
  1519         @Override
  1520         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1521             return v.visitCompoundAssignment(this, d);
  1523         @Override
  1524         public int getTag() {
  1525             return opcode;
  1529     /**
  1530      * A unary operation.
  1531      */
  1532     public static class JCUnary extends JCExpression implements UnaryTree {
  1533         private int opcode;
  1534         public JCExpression arg;
  1535         public Symbol operator;
  1536         protected JCUnary(int opcode, JCExpression arg) {
  1537             this.opcode = opcode;
  1538             this.arg = arg;
  1540         @Override
  1541         public void accept(Visitor v) { v.visitUnary(this); }
  1543         public Kind getKind() { return TreeInfo.tagToKind(getTag()); }
  1544         public JCExpression getExpression() { return arg; }
  1545         public Symbol getOperator() {
  1546             return operator;
  1548         @Override
  1549         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1550             return v.visitUnary(this, d);
  1552         @Override
  1553         public int getTag() {
  1554             return opcode;
  1557         public void setTag(int tag) {
  1558             opcode = tag;
  1562     /**
  1563      * A binary operation.
  1564      */
  1565     public static class JCBinary extends JCExpression implements BinaryTree {
  1566         private int opcode;
  1567         public JCExpression lhs;
  1568         public JCExpression rhs;
  1569         public Symbol operator;
  1570         protected JCBinary(int opcode,
  1571                          JCExpression lhs,
  1572                          JCExpression rhs,
  1573                          Symbol operator) {
  1574             this.opcode = opcode;
  1575             this.lhs = lhs;
  1576             this.rhs = rhs;
  1577             this.operator = operator;
  1579         @Override
  1580         public void accept(Visitor v) { v.visitBinary(this); }
  1582         public Kind getKind() { return TreeInfo.tagToKind(getTag()); }
  1583         public JCExpression getLeftOperand() { return lhs; }
  1584         public JCExpression getRightOperand() { return rhs; }
  1585         public Symbol getOperator() {
  1586             return operator;
  1588         @Override
  1589         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1590             return v.visitBinary(this, d);
  1592         @Override
  1593         public int getTag() {
  1594             return opcode;
  1598     /**
  1599      * A type cast.
  1600      */
  1601     public static class JCTypeCast extends JCExpression implements TypeCastTree {
  1602         public JCTree clazz;
  1603         public JCExpression expr;
  1604         protected JCTypeCast(JCTree clazz, JCExpression expr) {
  1605             this.clazz = clazz;
  1606             this.expr = expr;
  1608         @Override
  1609         public void accept(Visitor v) { v.visitTypeCast(this); }
  1611         public Kind getKind() { return Kind.TYPE_CAST; }
  1612         public JCTree getType() { return clazz; }
  1613         public JCExpression getExpression() { return expr; }
  1614         @Override
  1615         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1616             return v.visitTypeCast(this, d);
  1618         @Override
  1619         public int getTag() {
  1620             return TYPECAST;
  1624     /**
  1625      * A type test.
  1626      */
  1627     public static class JCInstanceOf extends JCExpression implements InstanceOfTree {
  1628         public JCExpression expr;
  1629         public JCTree clazz;
  1630         protected JCInstanceOf(JCExpression expr, JCTree clazz) {
  1631             this.expr = expr;
  1632             this.clazz = clazz;
  1634         @Override
  1635         public void accept(Visitor v) { v.visitTypeTest(this); }
  1637         public Kind getKind() { return Kind.INSTANCE_OF; }
  1638         public JCTree getType() { return clazz; }
  1639         public JCExpression getExpression() { return expr; }
  1640         @Override
  1641         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1642             return v.visitInstanceOf(this, d);
  1644         @Override
  1645         public int getTag() {
  1646             return TYPETEST;
  1650     /**
  1651      * An array selection
  1652      */
  1653     public static class JCArrayAccess extends JCExpression implements ArrayAccessTree {
  1654         public JCExpression indexed;
  1655         public JCExpression index;
  1656         protected JCArrayAccess(JCExpression indexed, JCExpression index) {
  1657             this.indexed = indexed;
  1658             this.index = index;
  1660         @Override
  1661         public void accept(Visitor v) { v.visitIndexed(this); }
  1663         public Kind getKind() { return Kind.ARRAY_ACCESS; }
  1664         public JCExpression getExpression() { return indexed; }
  1665         public JCExpression getIndex() { return index; }
  1666         @Override
  1667         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1668             return v.visitArrayAccess(this, d);
  1670         @Override
  1671         public int getTag() {
  1672             return INDEXED;
  1676     /**
  1677      * Selects through packages and classes
  1678      * @param selected selected Tree hierarchie
  1679      * @param selector name of field to select thru
  1680      * @param sym symbol of the selected class
  1681      */
  1682     public static class JCFieldAccess extends JCExpression implements MemberSelectTree {
  1683         public JCExpression selected;
  1684         public Name name;
  1685         public Symbol sym;
  1686         protected JCFieldAccess(JCExpression selected, Name name, Symbol sym) {
  1687             this.selected = selected;
  1688             this.name = name;
  1689             this.sym = sym;
  1691         @Override
  1692         public void accept(Visitor v) { v.visitSelect(this); }
  1694         public Kind getKind() { return Kind.MEMBER_SELECT; }
  1695         public JCExpression getExpression() { return selected; }
  1696         @Override
  1697         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1698             return v.visitMemberSelect(this, d);
  1700         public Name getIdentifier() { return name; }
  1701         @Override
  1702         public int getTag() {
  1703             return SELECT;
  1707     /**
  1708      * An identifier
  1709      * @param idname the name
  1710      * @param sym the symbol
  1711      */
  1712     public static class JCIdent extends JCExpression implements IdentifierTree {
  1713         public Name name;
  1714         public Symbol sym;
  1715         protected JCIdent(Name name, Symbol sym) {
  1716             this.name = name;
  1717             this.sym = sym;
  1719         @Override
  1720         public void accept(Visitor v) { v.visitIdent(this); }
  1722         public Kind getKind() { return Kind.IDENTIFIER; }
  1723         public Name getName() { return name; }
  1724         @Override
  1725         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1726             return v.visitIdentifier(this, d);
  1728         public int getTag() {
  1729             return IDENT;
  1733     /**
  1734      * A constant value given literally.
  1735      * @param value value representation
  1736      */
  1737     public static class JCLiteral extends JCExpression implements LiteralTree {
  1738         public int typetag;
  1739         public Object value;
  1740         protected JCLiteral(int typetag, Object value) {
  1741             this.typetag = typetag;
  1742             this.value = value;
  1744         @Override
  1745         public void accept(Visitor v) { v.visitLiteral(this); }
  1747         public Kind getKind() {
  1748             switch (typetag) {
  1749             case TypeTags.INT:
  1750                 return Kind.INT_LITERAL;
  1751             case TypeTags.LONG:
  1752                 return Kind.LONG_LITERAL;
  1753             case TypeTags.FLOAT:
  1754                 return Kind.FLOAT_LITERAL;
  1755             case TypeTags.DOUBLE:
  1756                 return Kind.DOUBLE_LITERAL;
  1757             case TypeTags.BOOLEAN:
  1758                 return Kind.BOOLEAN_LITERAL;
  1759             case TypeTags.CHAR:
  1760                 return Kind.CHAR_LITERAL;
  1761             case TypeTags.CLASS:
  1762                 return Kind.STRING_LITERAL;
  1763             case TypeTags.BOT:
  1764                 return Kind.NULL_LITERAL;
  1765             default:
  1766                 throw new AssertionError("unknown literal kind " + this);
  1769         public Object getValue() {
  1770             switch (typetag) {
  1771                 case TypeTags.BOOLEAN:
  1772                     int bi = (Integer) value;
  1773                     return (bi != 0);
  1774                 case TypeTags.CHAR:
  1775                     int ci = (Integer) value;
  1776                     char c = (char) ci;
  1777                     if (c != ci)
  1778                         throw new AssertionError("bad value for char literal");
  1779                     return c;
  1780                 default:
  1781                     return value;
  1784         @Override
  1785         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1786             return v.visitLiteral(this, d);
  1788         @Override
  1789         public JCLiteral setType(Type type) {
  1790             super.setType(type);
  1791             return this;
  1793         @Override
  1794         public int getTag() {
  1795             return LITERAL;
  1799     /**
  1800      * Identifies a basic type.
  1801      * @param tag the basic type id
  1802      * @see TypeTags
  1803      */
  1804     public static class JCPrimitiveTypeTree extends JCExpression implements PrimitiveTypeTree {
  1805         public int typetag;
  1806         protected JCPrimitiveTypeTree(int typetag) {
  1807             this.typetag = typetag;
  1809         @Override
  1810         public void accept(Visitor v) { v.visitTypeIdent(this); }
  1812         public Kind getKind() { return Kind.PRIMITIVE_TYPE; }
  1813         public TypeKind getPrimitiveTypeKind() {
  1814             switch (typetag) {
  1815             case TypeTags.BOOLEAN:
  1816                 return TypeKind.BOOLEAN;
  1817             case TypeTags.BYTE:
  1818                 return TypeKind.BYTE;
  1819             case TypeTags.SHORT:
  1820                 return TypeKind.SHORT;
  1821             case TypeTags.INT:
  1822                 return TypeKind.INT;
  1823             case TypeTags.LONG:
  1824                 return TypeKind.LONG;
  1825             case TypeTags.CHAR:
  1826                 return TypeKind.CHAR;
  1827             case TypeTags.FLOAT:
  1828                 return TypeKind.FLOAT;
  1829             case TypeTags.DOUBLE:
  1830                 return TypeKind.DOUBLE;
  1831             case TypeTags.VOID:
  1832                 return TypeKind.VOID;
  1833             default:
  1834                 throw new AssertionError("unknown primitive type " + this);
  1837         @Override
  1838         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1839             return v.visitPrimitiveType(this, d);
  1841         @Override
  1842         public int getTag() {
  1843             return TYPEIDENT;
  1847     /**
  1848      * An array type, A[]
  1849      */
  1850     public static class JCArrayTypeTree extends JCExpression implements ArrayTypeTree {
  1851         public JCExpression elemtype;
  1852         protected JCArrayTypeTree(JCExpression elemtype) {
  1853             this.elemtype = elemtype;
  1855         @Override
  1856         public void accept(Visitor v) { v.visitTypeArray(this); }
  1858         public Kind getKind() { return Kind.ARRAY_TYPE; }
  1859         public JCTree getType() { return elemtype; }
  1860         @Override
  1861         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1862             return v.visitArrayType(this, d);
  1864         @Override
  1865         public int getTag() {
  1866             return TYPEARRAY;
  1870     /**
  1871      * A parameterized type, T<...>
  1872      */
  1873     public static class JCTypeApply extends JCExpression implements ParameterizedTypeTree {
  1874         public JCExpression clazz;
  1875         public List<JCExpression> arguments;
  1876         protected JCTypeApply(JCExpression clazz, List<JCExpression> arguments) {
  1877             this.clazz = clazz;
  1878             this.arguments = arguments;
  1880         @Override
  1881         public void accept(Visitor v) { v.visitTypeApply(this); }
  1883         public Kind getKind() { return Kind.PARAMETERIZED_TYPE; }
  1884         public JCTree getType() { return clazz; }
  1885         public List<JCExpression> getTypeArguments() {
  1886             return arguments;
  1888         @Override
  1889         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1890             return v.visitParameterizedType(this, d);
  1892         @Override
  1893         public int getTag() {
  1894             return TYPEAPPLY;
  1898     /**
  1899      * A union type, T1 | T2 | ... Tn (used in multicatch statements)
  1900      */
  1901     public static class JCTypeUnion extends JCExpression implements UnionTypeTree {
  1903         public List<JCExpression> alternatives;
  1905         protected JCTypeUnion(List<JCExpression> components) {
  1906             this.alternatives = components;
  1908         @Override
  1909         public void accept(Visitor v) { v.visitTypeUnion(this); }
  1911         public Kind getKind() { return Kind.UNION_TYPE; }
  1913         public List<JCExpression> getTypeAlternatives() {
  1914             return alternatives;
  1916         @Override
  1917         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1918             return v.visitUnionType(this, d);
  1920         @Override
  1921         public int getTag() {
  1922             return TYPEUNION;
  1926     /**
  1927      * A formal class parameter.
  1928      * @param name name
  1929      * @param bounds bounds
  1930      */
  1931     public static class JCTypeParameter extends JCTree implements TypeParameterTree {
  1932         public Name name;
  1933         public List<JCExpression> bounds;
  1934         protected JCTypeParameter(Name name, List<JCExpression> bounds) {
  1935             this.name = name;
  1936             this.bounds = bounds;
  1938         @Override
  1939         public void accept(Visitor v) { v.visitTypeParameter(this); }
  1941         public Kind getKind() { return Kind.TYPE_PARAMETER; }
  1942         public Name getName() { return name; }
  1943         public List<JCExpression> getBounds() {
  1944             return bounds;
  1946         @Override
  1947         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1948             return v.visitTypeParameter(this, d);
  1950         @Override
  1951         public int getTag() {
  1952             return TYPEPARAMETER;
  1956     public static class JCWildcard extends JCExpression implements WildcardTree {
  1957         public TypeBoundKind kind;
  1958         public JCTree inner;
  1959         protected JCWildcard(TypeBoundKind kind, JCTree inner) {
  1960             kind.getClass(); // null-check
  1961             this.kind = kind;
  1962             this.inner = inner;
  1964         @Override
  1965         public void accept(Visitor v) { v.visitWildcard(this); }
  1967         public Kind getKind() {
  1968             switch (kind.kind) {
  1969             case UNBOUND:
  1970                 return Kind.UNBOUNDED_WILDCARD;
  1971             case EXTENDS:
  1972                 return Kind.EXTENDS_WILDCARD;
  1973             case SUPER:
  1974                 return Kind.SUPER_WILDCARD;
  1975             default:
  1976                 throw new AssertionError("Unknown wildcard bound " + kind);
  1979         public JCTree getBound() { return inner; }
  1980         @Override
  1981         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  1982             return v.visitWildcard(this, d);
  1984         @Override
  1985         public int getTag() {
  1986             return WILDCARD;
  1990     public static class TypeBoundKind extends JCTree {
  1991         public BoundKind kind;
  1992         protected TypeBoundKind(BoundKind kind) {
  1993             this.kind = kind;
  1995         @Override
  1996         public void accept(Visitor v) { v.visitTypeBoundKind(this); }
  1998         public Kind getKind() {
  1999             throw new AssertionError("TypeBoundKind is not part of a public API");
  2001         @Override
  2002         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  2003             throw new AssertionError("TypeBoundKind is not part of a public API");
  2005         @Override
  2006         public int getTag() {
  2007             return TYPEBOUNDKIND;
  2011     public static class JCAnnotation extends JCExpression implements AnnotationTree {
  2012         public JCTree annotationType;
  2013         public List<JCExpression> args;
  2014         protected JCAnnotation(JCTree annotationType, List<JCExpression> args) {
  2015             this.annotationType = annotationType;
  2016             this.args = args;
  2018         @Override
  2019         public void accept(Visitor v) { v.visitAnnotation(this); }
  2021         public Kind getKind() { return Kind.ANNOTATION; }
  2022         public JCTree getAnnotationType() { return annotationType; }
  2023         public List<JCExpression> getArguments() {
  2024             return args;
  2026         @Override
  2027         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  2028             return v.visitAnnotation(this, d);
  2030         @Override
  2031         public int getTag() {
  2032             return ANNOTATION;
  2036     public static class JCModifiers extends JCTree implements com.sun.source.tree.ModifiersTree {
  2037         public long flags;
  2038         public List<JCAnnotation> annotations;
  2039         protected JCModifiers(long flags, List<JCAnnotation> annotations) {
  2040             this.flags = flags;
  2041             this.annotations = annotations;
  2043         @Override
  2044         public void accept(Visitor v) { v.visitModifiers(this); }
  2046         public Kind getKind() { return Kind.MODIFIERS; }
  2047         public Set<Modifier> getFlags() {
  2048             return Flags.asModifierSet(flags);
  2050         public List<JCAnnotation> getAnnotations() {
  2051             return annotations;
  2053         @Override
  2054         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  2055             return v.visitModifiers(this, d);
  2057         @Override
  2058         public int getTag() {
  2059             return MODIFIERS;
  2063     public static class JCErroneous extends JCExpression
  2064             implements com.sun.source.tree.ErroneousTree {
  2065         public List<? extends JCTree> errs;
  2066         protected JCErroneous(List<? extends JCTree> errs) {
  2067             this.errs = errs;
  2069         @Override
  2070         public void accept(Visitor v) { v.visitErroneous(this); }
  2072         public Kind getKind() { return Kind.ERRONEOUS; }
  2074         public List<? extends JCTree> getErrorTrees() {
  2075             return errs;
  2078         @Override
  2079         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  2080             return v.visitErroneous(this, d);
  2082         @Override
  2083         public int getTag() {
  2084             return ERRONEOUS;
  2088     /** (let int x = 3; in x+2) */
  2089     public static class LetExpr extends JCExpression {
  2090         public List<JCVariableDecl> defs;
  2091         public JCTree expr;
  2092         protected LetExpr(List<JCVariableDecl> defs, JCTree expr) {
  2093             this.defs = defs;
  2094             this.expr = expr;
  2096         @Override
  2097         public void accept(Visitor v) { v.visitLetExpr(this); }
  2099         public Kind getKind() {
  2100             throw new AssertionError("LetExpr is not part of a public API");
  2102         @Override
  2103         public <R,D> R accept(TreeVisitor<R,D> v, D d) {
  2104             throw new AssertionError("LetExpr is not part of a public API");
  2106         @Override
  2107         public int getTag() {
  2108             return LETEXPR;
  2112     /** An interface for tree factories
  2113      */
  2114     public interface Factory {
  2115         JCCompilationUnit TopLevel(List<JCAnnotation> packageAnnotations,
  2116                                    JCExpression pid,
  2117                                    List<JCTree> defs);
  2118         JCImport Import(JCTree qualid, boolean staticImport);
  2119         JCClassDecl ClassDef(JCModifiers mods,
  2120                           Name name,
  2121                           List<JCTypeParameter> typarams,
  2122                           JCExpression extending,
  2123                           List<JCExpression> implementing,
  2124                           List<JCTree> defs);
  2125         JCMethodDecl MethodDef(JCModifiers mods,
  2126                             Name name,
  2127                             JCExpression restype,
  2128                             List<JCTypeParameter> typarams,
  2129                             List<JCVariableDecl> params,
  2130                             List<JCExpression> thrown,
  2131                             JCBlock body,
  2132                             JCExpression defaultValue);
  2133         JCVariableDecl VarDef(JCModifiers mods,
  2134                       Name name,
  2135                       JCExpression vartype,
  2136                       JCExpression init);
  2137         JCSkip Skip();
  2138         JCBlock Block(long flags, List<JCStatement> stats);
  2139         JCDoWhileLoop DoLoop(JCStatement body, JCExpression cond);
  2140         JCWhileLoop WhileLoop(JCExpression cond, JCStatement body);
  2141         JCForLoop ForLoop(List<JCStatement> init,
  2142                         JCExpression cond,
  2143                         List<JCExpressionStatement> step,
  2144                         JCStatement body);
  2145         JCEnhancedForLoop ForeachLoop(JCVariableDecl var, JCExpression expr, JCStatement body);
  2146         JCLabeledStatement Labelled(Name label, JCStatement body);
  2147         JCSwitch Switch(JCExpression selector, List<JCCase> cases);
  2148         JCCase Case(JCExpression pat, List<JCStatement> stats);
  2149         JCSynchronized Synchronized(JCExpression lock, JCBlock body);
  2150         JCTry Try(JCBlock body, List<JCCatch> catchers, JCBlock finalizer);
  2151         JCTry Try(List<JCTree> resources,
  2152                   JCBlock body,
  2153                   List<JCCatch> catchers,
  2154                   JCBlock finalizer);
  2155         JCCatch Catch(JCVariableDecl param, JCBlock body);
  2156         JCConditional Conditional(JCExpression cond,
  2157                                 JCExpression thenpart,
  2158                                 JCExpression elsepart);
  2159         JCIf If(JCExpression cond, JCStatement thenpart, JCStatement elsepart);
  2160         JCExpressionStatement Exec(JCExpression expr);
  2161         JCBreak Break(Name label);
  2162         JCContinue Continue(Name label);
  2163         JCReturn Return(JCExpression expr);
  2164         JCThrow Throw(JCTree expr);
  2165         JCAssert Assert(JCExpression cond, JCExpression detail);
  2166         JCMethodInvocation Apply(List<JCExpression> typeargs,
  2167                     JCExpression fn,
  2168                     List<JCExpression> args);
  2169         JCNewClass NewClass(JCExpression encl,
  2170                           List<JCExpression> typeargs,
  2171                           JCExpression clazz,
  2172                           List<JCExpression> args,
  2173                           JCClassDecl def);
  2174         JCNewArray NewArray(JCExpression elemtype,
  2175                           List<JCExpression> dims,
  2176                           List<JCExpression> elems);
  2177         JCParens Parens(JCExpression expr);
  2178         JCAssign Assign(JCExpression lhs, JCExpression rhs);
  2179         JCAssignOp Assignop(int opcode, JCTree lhs, JCTree rhs);
  2180         JCUnary Unary(int opcode, JCExpression arg);
  2181         JCBinary Binary(int opcode, JCExpression lhs, JCExpression rhs);
  2182         JCTypeCast TypeCast(JCTree expr, JCExpression type);
  2183         JCInstanceOf TypeTest(JCExpression expr, JCTree clazz);
  2184         JCArrayAccess Indexed(JCExpression indexed, JCExpression index);
  2185         JCFieldAccess Select(JCExpression selected, Name selector);
  2186         JCIdent Ident(Name idname);
  2187         JCLiteral Literal(int tag, Object value);
  2188         JCPrimitiveTypeTree TypeIdent(int typetag);
  2189         JCArrayTypeTree TypeArray(JCExpression elemtype);
  2190         JCTypeApply TypeApply(JCExpression clazz, List<JCExpression> arguments);
  2191         JCTypeParameter TypeParameter(Name name, List<JCExpression> bounds);
  2192         JCWildcard Wildcard(TypeBoundKind kind, JCTree type);
  2193         TypeBoundKind TypeBoundKind(BoundKind kind);
  2194         JCAnnotation Annotation(JCTree annotationType, List<JCExpression> args);
  2195         JCModifiers Modifiers(long flags, List<JCAnnotation> annotations);
  2196         JCErroneous Erroneous(List<? extends JCTree> errs);
  2197         LetExpr LetExpr(List<JCVariableDecl> defs, JCTree expr);
  2200     /** A generic visitor class for trees.
  2201      */
  2202     public static abstract class Visitor {
  2203         public void visitTopLevel(JCCompilationUnit that)    { visitTree(that); }
  2204         public void visitImport(JCImport that)               { visitTree(that); }
  2205         public void visitClassDef(JCClassDecl that)          { visitTree(that); }
  2206         public void visitMethodDef(JCMethodDecl that)        { visitTree(that); }
  2207         public void visitVarDef(JCVariableDecl that)         { visitTree(that); }
  2208         public void visitSkip(JCSkip that)                   { visitTree(that); }
  2209         public void visitBlock(JCBlock that)                 { visitTree(that); }
  2210         public void visitDoLoop(JCDoWhileLoop that)          { visitTree(that); }
  2211         public void visitWhileLoop(JCWhileLoop that)         { visitTree(that); }
  2212         public void visitForLoop(JCForLoop that)             { visitTree(that); }
  2213         public void visitForeachLoop(JCEnhancedForLoop that) { visitTree(that); }
  2214         public void visitLabelled(JCLabeledStatement that)   { visitTree(that); }
  2215         public void visitSwitch(JCSwitch that)               { visitTree(that); }
  2216         public void visitCase(JCCase that)                   { visitTree(that); }
  2217         public void visitSynchronized(JCSynchronized that)   { visitTree(that); }
  2218         public void visitTry(JCTry that)                     { visitTree(that); }
  2219         public void visitCatch(JCCatch that)                 { visitTree(that); }
  2220         public void visitConditional(JCConditional that)     { visitTree(that); }
  2221         public void visitIf(JCIf that)                       { visitTree(that); }
  2222         public void visitExec(JCExpressionStatement that)    { visitTree(that); }
  2223         public void visitBreak(JCBreak that)                 { visitTree(that); }
  2224         public void visitContinue(JCContinue that)           { visitTree(that); }
  2225         public void visitReturn(JCReturn that)               { visitTree(that); }
  2226         public void visitThrow(JCThrow that)                 { visitTree(that); }
  2227         public void visitAssert(JCAssert that)               { visitTree(that); }
  2228         public void visitApply(JCMethodInvocation that)      { visitTree(that); }
  2229         public void visitNewClass(JCNewClass that)           { visitTree(that); }
  2230         public void visitNewArray(JCNewArray that)           { visitTree(that); }
  2231         public void visitParens(JCParens that)               { visitTree(that); }
  2232         public void visitAssign(JCAssign that)               { visitTree(that); }
  2233         public void visitAssignop(JCAssignOp that)           { visitTree(that); }
  2234         public void visitUnary(JCUnary that)                 { visitTree(that); }
  2235         public void visitBinary(JCBinary that)               { visitTree(that); }
  2236         public void visitTypeCast(JCTypeCast that)           { visitTree(that); }
  2237         public void visitTypeTest(JCInstanceOf that)         { visitTree(that); }
  2238         public void visitIndexed(JCArrayAccess that)         { visitTree(that); }
  2239         public void visitSelect(JCFieldAccess that)          { visitTree(that); }
  2240         public void visitIdent(JCIdent that)                 { visitTree(that); }
  2241         public void visitLiteral(JCLiteral that)             { visitTree(that); }
  2242         public void visitTypeIdent(JCPrimitiveTypeTree that) { visitTree(that); }
  2243         public void visitTypeArray(JCArrayTypeTree that)     { visitTree(that); }
  2244         public void visitTypeApply(JCTypeApply that)         { visitTree(that); }
  2245         public void visitTypeUnion(JCTypeUnion that)         { visitTree(that); }
  2246         public void visitTypeParameter(JCTypeParameter that) { visitTree(that); }
  2247         public void visitWildcard(JCWildcard that)           { visitTree(that); }
  2248         public void visitTypeBoundKind(TypeBoundKind that)   { visitTree(that); }
  2249         public void visitAnnotation(JCAnnotation that)       { visitTree(that); }
  2250         public void visitModifiers(JCModifiers that)         { visitTree(that); }
  2251         public void visitErroneous(JCErroneous that)         { visitTree(that); }
  2252         public void visitLetExpr(LetExpr that)               { visitTree(that); }
  2254         public void visitTree(JCTree that)                   { Assert.error(); }

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