Mercurial > jdk8-mips64-public > langtools / file revision
src/share/classes/com/sun/tools/javac/tree/JCTree.java@7c537f4298fb
src/share/classes/com/sun/tools/javac/tree/JCTree.java
Mon, 10 Jan 2011 15:08:31 -0800
- author
- jjg
- date
- Mon, 10 Jan 2011 15:08:31 -0800
- changeset 816
- 7c537f4298fb
- parent 815
- d17f37522154
- child 837
- 73ab0b128918
- permissions
- -rw-r--r--
6396503: javac should not require assertions enabled
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 /** Disjunction types, of type TypeDisjunction
240 */
241 public static final int TYPEDISJUNCTION = TYPEAPPLY + 1;
243 /** Formal type parameters, of type TypeParameter.
244 */
245 public static final int TYPEPARAMETER = TYPEDISJUNCTION + 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 if (tree.getTag() == IMPORT)
469 imports.append((JCImport)tree);
470 else
471 break;
472 }
473 return imports.toList();
474 }
475 public JCExpression getPackageName() { return pid; }
476 public JavaFileObject getSourceFile() {
477 return sourcefile;
478 }
479 public Position.LineMap getLineMap() {
480 return lineMap;
481 }
482 public List<JCTree> getTypeDecls() {
483 List<JCTree> typeDefs;
484 for (typeDefs = defs; !typeDefs.isEmpty(); typeDefs = typeDefs.tail)
485 if (typeDefs.head.getTag() != IMPORT)
486 break;
487 return typeDefs;
488 }
489 @Override
490 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
491 return v.visitCompilationUnit(this, d);
492 }
494 @Override
495 public int getTag() {
496 return TOPLEVEL;
497 }
498 }
500 /**
501 * An import clause.
502 * @param qualid The imported class(es).
503 */
504 public static class JCImport extends JCTree implements ImportTree {
505 public boolean staticImport;
506 public JCTree qualid;
507 protected JCImport(JCTree qualid, boolean importStatic) {
508 this.qualid = qualid;
509 this.staticImport = importStatic;
510 }
511 @Override
512 public void accept(Visitor v) { v.visitImport(this); }
514 public boolean isStatic() { return staticImport; }
515 public JCTree getQualifiedIdentifier() { return qualid; }
517 public Kind getKind() { return Kind.IMPORT; }
518 @Override
519 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
520 return v.visitImport(this, d);
521 }
523 @Override
524 public int getTag() {
525 return IMPORT;
526 }
527 }
529 public static abstract class JCStatement extends JCTree implements StatementTree {
530 @Override
531 public JCStatement setType(Type type) {
532 super.setType(type);
533 return this;
534 }
535 @Override
536 public JCStatement setPos(int pos) {
537 super.setPos(pos);
538 return this;
539 }
540 }
542 public static abstract class JCExpression extends JCTree implements ExpressionTree {
543 @Override
544 public JCExpression setType(Type type) {
545 super.setType(type);
546 return this;
547 }
548 @Override
549 public JCExpression setPos(int pos) {
550 super.setPos(pos);
551 return this;
552 }
553 }
555 /**
556 * A class definition.
557 * @param modifiers the modifiers
558 * @param name the name of the class
559 * @param typarams formal class parameters
560 * @param extending the classes this class extends
561 * @param implementing the interfaces implemented by this class
562 * @param defs all variables and methods defined in this class
563 * @param sym the symbol
564 */
565 public static class JCClassDecl extends JCStatement implements ClassTree {
566 public JCModifiers mods;
567 public Name name;
568 public List<JCTypeParameter> typarams;
569 public JCTree extending;
570 public List<JCExpression> implementing;
571 public List<JCTree> defs;
572 public ClassSymbol sym;
573 protected JCClassDecl(JCModifiers mods,
574 Name name,
575 List<JCTypeParameter> typarams,
576 JCTree extending,
577 List<JCExpression> implementing,
578 List<JCTree> defs,
579 ClassSymbol sym)
580 {
581 this.mods = mods;
582 this.name = name;
583 this.typarams = typarams;
584 this.extending = extending;
585 this.implementing = implementing;
586 this.defs = defs;
587 this.sym = sym;
588 }
589 @Override
590 public void accept(Visitor v) { v.visitClassDef(this); }
592 public Kind getKind() {
593 if ((mods.flags & Flags.ANNOTATION) != 0)
594 return Kind.ANNOTATION_TYPE;
595 else if ((mods.flags & Flags.INTERFACE) != 0)
596 return Kind.INTERFACE;
597 else if ((mods.flags & Flags.ENUM) != 0)
598 return Kind.ENUM;
599 else
600 return Kind.CLASS;
601 }
603 public JCModifiers getModifiers() { return mods; }
604 public Name getSimpleName() { return name; }
605 public List<JCTypeParameter> getTypeParameters() {
606 return typarams;
607 }
608 public JCTree getExtendsClause() { return extending; }
609 public List<JCExpression> getImplementsClause() {
610 return implementing;
611 }
612 public List<JCTree> getMembers() {
613 return defs;
614 }
615 @Override
616 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
617 return v.visitClass(this, d);
618 }
620 @Override
621 public int getTag() {
622 return CLASSDEF;
623 }
624 }
626 /**
627 * A method definition.
628 * @param modifiers method modifiers
629 * @param name method name
630 * @param restype type of method return value
631 * @param typarams type parameters
632 * @param params value parameters
633 * @param thrown exceptions thrown by this method
634 * @param stats statements in the method
635 * @param sym method symbol
636 */
637 public static class JCMethodDecl extends JCTree implements MethodTree {
638 public JCModifiers mods;
639 public Name name;
640 public JCExpression restype;
641 public List<JCTypeParameter> typarams;
642 public List<JCVariableDecl> params;
643 public List<JCExpression> thrown;
644 public JCBlock body;
645 public JCExpression defaultValue; // for annotation types
646 public MethodSymbol sym;
647 protected JCMethodDecl(JCModifiers mods,
648 Name name,
649 JCExpression restype,
650 List<JCTypeParameter> typarams,
651 List<JCVariableDecl> params,
652 List<JCExpression> thrown,
653 JCBlock body,
654 JCExpression defaultValue,
655 MethodSymbol sym)
656 {
657 this.mods = mods;
658 this.name = name;
659 this.restype = restype;
660 this.typarams = typarams;
661 this.params = params;
662 this.thrown = thrown;
663 this.body = body;
664 this.defaultValue = defaultValue;
665 this.sym = sym;
666 }
667 @Override
668 public void accept(Visitor v) { v.visitMethodDef(this); }
670 public Kind getKind() { return Kind.METHOD; }
671 public JCModifiers getModifiers() { return mods; }
672 public Name getName() { return name; }
673 public JCTree getReturnType() { return restype; }
674 public List<JCTypeParameter> getTypeParameters() {
675 return typarams;
676 }
677 public List<JCVariableDecl> getParameters() {
678 return params;
679 }
680 public List<JCExpression> getThrows() {
681 return thrown;
682 }
683 public JCBlock getBody() { return body; }
684 public JCTree getDefaultValue() { // for annotation types
685 return defaultValue;
686 }
687 @Override
688 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
689 return v.visitMethod(this, d);
690 }
692 @Override
693 public int getTag() {
694 return METHODDEF;
695 }
696 }
698 /**
699 * A variable definition.
700 * @param modifiers variable modifiers
701 * @param name variable name
702 * @param vartype type of the variable
703 * @param init variables initial value
704 * @param sym symbol
705 */
706 public static class JCVariableDecl extends JCStatement implements VariableTree {
707 public JCModifiers mods;
708 public Name name;
709 public JCExpression vartype;
710 public JCExpression init;
711 public VarSymbol sym;
712 protected JCVariableDecl(JCModifiers mods,
713 Name name,
714 JCExpression vartype,
715 JCExpression init,
716 VarSymbol sym) {
717 this.mods = mods;
718 this.name = name;
719 this.vartype = vartype;
720 this.init = init;
721 this.sym = sym;
722 }
723 @Override
724 public void accept(Visitor v) { v.visitVarDef(this); }
726 public Kind getKind() { return Kind.VARIABLE; }
727 public JCModifiers getModifiers() { return mods; }
728 public Name getName() { return name; }
729 public JCTree getType() { return vartype; }
730 public JCExpression getInitializer() {
731 return init;
732 }
733 @Override
734 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
735 return v.visitVariable(this, d);
736 }
738 @Override
739 public int getTag() {
740 return VARDEF;
741 }
742 }
744 /**
745 * A no-op statement ";".
746 */
747 public static class JCSkip extends JCStatement implements EmptyStatementTree {
748 protected JCSkip() {
749 }
750 @Override
751 public void accept(Visitor v) { v.visitSkip(this); }
753 public Kind getKind() { return Kind.EMPTY_STATEMENT; }
754 @Override
755 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
756 return v.visitEmptyStatement(this, d);
757 }
759 @Override
760 public int getTag() {
761 return SKIP;
762 }
763 }
765 /**
766 * A statement block.
767 * @param stats statements
768 * @param flags flags
769 */
770 public static class JCBlock extends JCStatement implements BlockTree {
771 public long flags;
772 public List<JCStatement> stats;
773 /** Position of closing brace, optional. */
774 public int endpos = Position.NOPOS;
775 protected JCBlock(long flags, List<JCStatement> stats) {
776 this.stats = stats;
777 this.flags = flags;
778 }
779 @Override
780 public void accept(Visitor v) { v.visitBlock(this); }
782 public Kind getKind() { return Kind.BLOCK; }
783 public List<JCStatement> getStatements() {
784 return stats;
785 }
786 public boolean isStatic() { return (flags & Flags.STATIC) != 0; }
787 @Override
788 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
789 return v.visitBlock(this, d);
790 }
792 @Override
793 public int getTag() {
794 return BLOCK;
795 }
796 }
798 /**
799 * A do loop
800 */
801 public static class JCDoWhileLoop extends JCStatement implements DoWhileLoopTree {
802 public JCStatement body;
803 public JCExpression cond;
804 protected JCDoWhileLoop(JCStatement body, JCExpression cond) {
805 this.body = body;
806 this.cond = cond;
807 }
808 @Override
809 public void accept(Visitor v) { v.visitDoLoop(this); }
811 public Kind getKind() { return Kind.DO_WHILE_LOOP; }
812 public JCExpression getCondition() { return cond; }
813 public JCStatement getStatement() { return body; }
814 @Override
815 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
816 return v.visitDoWhileLoop(this, d);
817 }
819 @Override
820 public int getTag() {
821 return DOLOOP;
822 }
823 }
825 /**
826 * A while loop
827 */
828 public static class JCWhileLoop extends JCStatement implements WhileLoopTree {
829 public JCExpression cond;
830 public JCStatement body;
831 protected JCWhileLoop(JCExpression cond, JCStatement body) {
832 this.cond = cond;
833 this.body = body;
834 }
835 @Override
836 public void accept(Visitor v) { v.visitWhileLoop(this); }
838 public Kind getKind() { return Kind.WHILE_LOOP; }
839 public JCExpression getCondition() { return cond; }
840 public JCStatement getStatement() { return body; }
841 @Override
842 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
843 return v.visitWhileLoop(this, d);
844 }
846 @Override
847 public int getTag() {
848 return WHILELOOP;
849 }
850 }
852 /**
853 * A for loop.
854 */
855 public static class JCForLoop extends JCStatement implements ForLoopTree {
856 public List<JCStatement> init;
857 public JCExpression cond;
858 public List<JCExpressionStatement> step;
859 public JCStatement body;
860 protected JCForLoop(List<JCStatement> init,
861 JCExpression cond,
862 List<JCExpressionStatement> update,
863 JCStatement body)
864 {
865 this.init = init;
866 this.cond = cond;
867 this.step = update;
868 this.body = body;
869 }
870 @Override
871 public void accept(Visitor v) { v.visitForLoop(this); }
873 public Kind getKind() { return Kind.FOR_LOOP; }
874 public JCExpression getCondition() { return cond; }
875 public JCStatement getStatement() { return body; }
876 public List<JCStatement> getInitializer() {
877 return init;
878 }
879 public List<JCExpressionStatement> getUpdate() {
880 return step;
881 }
882 @Override
883 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
884 return v.visitForLoop(this, d);
885 }
887 @Override
888 public int getTag() {
889 return FORLOOP;
890 }
891 }
893 /**
894 * The enhanced for loop.
895 */
896 public static class JCEnhancedForLoop extends JCStatement implements EnhancedForLoopTree {
897 public JCVariableDecl var;
898 public JCExpression expr;
899 public JCStatement body;
900 protected JCEnhancedForLoop(JCVariableDecl var, JCExpression expr, JCStatement body) {
901 this.var = var;
902 this.expr = expr;
903 this.body = body;
904 }
905 @Override
906 public void accept(Visitor v) { v.visitForeachLoop(this); }
908 public Kind getKind() { return Kind.ENHANCED_FOR_LOOP; }
909 public JCVariableDecl getVariable() { return var; }
910 public JCExpression getExpression() { return expr; }
911 public JCStatement getStatement() { return body; }
912 @Override
913 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
914 return v.visitEnhancedForLoop(this, d);
915 }
916 @Override
917 public int getTag() {
918 return FOREACHLOOP;
919 }
920 }
922 /**
923 * A labelled expression or statement.
924 */
925 public static class JCLabeledStatement extends JCStatement implements LabeledStatementTree {
926 public Name label;
927 public JCStatement body;
928 protected JCLabeledStatement(Name label, JCStatement body) {
929 this.label = label;
930 this.body = body;
931 }
932 @Override
933 public void accept(Visitor v) { v.visitLabelled(this); }
934 public Kind getKind() { return Kind.LABELED_STATEMENT; }
935 public Name getLabel() { return label; }
936 public JCStatement getStatement() { return body; }
937 @Override
938 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
939 return v.visitLabeledStatement(this, d);
940 }
941 @Override
942 public int getTag() {
943 return LABELLED;
944 }
945 }
947 /**
948 * A "switch ( ) { }" construction.
949 */
950 public static class JCSwitch extends JCStatement implements SwitchTree {
951 public JCExpression selector;
952 public List<JCCase> cases;
953 protected JCSwitch(JCExpression selector, List<JCCase> cases) {
954 this.selector = selector;
955 this.cases = cases;
956 }
957 @Override
958 public void accept(Visitor v) { v.visitSwitch(this); }
960 public Kind getKind() { return Kind.SWITCH; }
961 public JCExpression getExpression() { return selector; }
962 public List<JCCase> getCases() { return cases; }
963 @Override
964 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
965 return v.visitSwitch(this, d);
966 }
967 @Override
968 public int getTag() {
969 return SWITCH;
970 }
971 }
973 /**
974 * A "case :" of a switch.
975 */
976 public static class JCCase extends JCStatement implements CaseTree {
977 public JCExpression pat;
978 public List<JCStatement> stats;
979 protected JCCase(JCExpression pat, List<JCStatement> stats) {
980 this.pat = pat;
981 this.stats = stats;
982 }
983 @Override
984 public void accept(Visitor v) { v.visitCase(this); }
986 public Kind getKind() { return Kind.CASE; }
987 public JCExpression getExpression() { return pat; }
988 public List<JCStatement> getStatements() { return stats; }
989 @Override
990 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
991 return v.visitCase(this, d);
992 }
993 @Override
994 public int getTag() {
995 return CASE;
996 }
997 }
999 /**
1000 * A synchronized block.
1001 */
1002 public static class JCSynchronized extends JCStatement implements SynchronizedTree {
1003 public JCExpression lock;
1004 public JCBlock body;
1005 protected JCSynchronized(JCExpression lock, JCBlock body) {
1006 this.lock = lock;
1007 this.body = body;
1008 }
1009 @Override
1010 public void accept(Visitor v) { v.visitSynchronized(this); }
1012 public Kind getKind() { return Kind.SYNCHRONIZED; }
1013 public JCExpression getExpression() { return lock; }
1014 public JCBlock getBlock() { return body; }
1015 @Override
1016 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1017 return v.visitSynchronized(this, d);
1018 }
1019 @Override
1020 public int getTag() {
1021 return SYNCHRONIZED;
1022 }
1023 }
1025 /**
1026 * A "try { } catch ( ) { } finally { }" block.
1027 */
1028 public static class JCTry extends JCStatement implements TryTree {
1029 public JCBlock body;
1030 public List<JCCatch> catchers;
1031 public JCBlock finalizer;
1032 public List<JCTree> resources;
1033 protected JCTry(List<JCTree> resources,
1034 JCBlock body,
1035 List<JCCatch> catchers,
1036 JCBlock finalizer) {
1037 this.body = body;
1038 this.catchers = catchers;
1039 this.finalizer = finalizer;
1040 this.resources = resources;
1041 }
1042 @Override
1043 public void accept(Visitor v) { v.visitTry(this); }
1045 public Kind getKind() { return Kind.TRY; }
1046 public JCBlock getBlock() { return body; }
1047 public List<JCCatch> getCatches() {
1048 return catchers;
1049 }
1050 public JCBlock getFinallyBlock() { return finalizer; }
1051 @Override
1052 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1053 return v.visitTry(this, d);
1054 }
1055 @Override
1056 public List<? extends JCTree> getResources() {
1057 return resources;
1058 }
1059 @Override
1060 public int getTag() {
1061 return TRY;
1062 }
1063 }
1065 /**
1066 * A catch block.
1067 */
1068 public static class JCCatch extends JCTree implements CatchTree {
1069 public JCVariableDecl param;
1070 public JCBlock body;
1071 protected JCCatch(JCVariableDecl param, JCBlock body) {
1072 this.param = param;
1073 this.body = body;
1074 }
1075 @Override
1076 public void accept(Visitor v) { v.visitCatch(this); }
1078 public Kind getKind() { return Kind.CATCH; }
1079 public JCVariableDecl getParameter() { return param; }
1080 public JCBlock getBlock() { return body; }
1081 @Override
1082 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1083 return v.visitCatch(this, d);
1084 }
1085 @Override
1086 public int getTag() {
1087 return CATCH;
1088 }
1089 }
1091 /**
1092 * A ( ) ? ( ) : ( ) conditional expression
1093 */
1094 public static class JCConditional extends JCExpression implements ConditionalExpressionTree {
1095 public JCExpression cond;
1096 public JCExpression truepart;
1097 public JCExpression falsepart;
1098 protected JCConditional(JCExpression cond,
1099 JCExpression truepart,
1100 JCExpression falsepart)
1101 {
1102 this.cond = cond;
1103 this.truepart = truepart;
1104 this.falsepart = falsepart;
1105 }
1106 @Override
1107 public void accept(Visitor v) { v.visitConditional(this); }
1109 public Kind getKind() { return Kind.CONDITIONAL_EXPRESSION; }
1110 public JCExpression getCondition() { return cond; }
1111 public JCExpression getTrueExpression() { return truepart; }
1112 public JCExpression getFalseExpression() { return falsepart; }
1113 @Override
1114 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1115 return v.visitConditionalExpression(this, d);
1116 }
1117 @Override
1118 public int getTag() {
1119 return CONDEXPR;
1120 }
1121 }
1123 /**
1124 * An "if ( ) { } else { }" block
1125 */
1126 public static class JCIf extends JCStatement implements IfTree {
1127 public JCExpression cond;
1128 public JCStatement thenpart;
1129 public JCStatement elsepart;
1130 protected JCIf(JCExpression cond,
1131 JCStatement thenpart,
1132 JCStatement elsepart)
1133 {
1134 this.cond = cond;
1135 this.thenpart = thenpart;
1136 this.elsepart = elsepart;
1137 }
1138 @Override
1139 public void accept(Visitor v) { v.visitIf(this); }
1141 public Kind getKind() { return Kind.IF; }
1142 public JCExpression getCondition() { return cond; }
1143 public JCStatement getThenStatement() { return thenpart; }
1144 public JCStatement getElseStatement() { return elsepart; }
1145 @Override
1146 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1147 return v.visitIf(this, d);
1148 }
1149 @Override
1150 public int getTag() {
1151 return IF;
1152 }
1153 }
1155 /**
1156 * an expression statement
1157 * @param expr expression structure
1158 */
1159 public static class JCExpressionStatement extends JCStatement implements ExpressionStatementTree {
1160 public JCExpression expr;
1161 protected JCExpressionStatement(JCExpression expr)
1162 {
1163 this.expr = expr;
1164 }
1165 @Override
1166 public void accept(Visitor v) { v.visitExec(this); }
1168 public Kind getKind() { return Kind.EXPRESSION_STATEMENT; }
1169 public JCExpression getExpression() { return expr; }
1170 @Override
1171 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1172 return v.visitExpressionStatement(this, d);
1173 }
1174 @Override
1175 public int getTag() {
1176 return EXEC;
1177 }
1178 }
1180 /**
1181 * A break from a loop or switch.
1182 */
1183 public static class JCBreak extends JCStatement implements BreakTree {
1184 public Name label;
1185 public JCTree target;
1186 protected JCBreak(Name label, JCTree target) {
1187 this.label = label;
1188 this.target = target;
1189 }
1190 @Override
1191 public void accept(Visitor v) { v.visitBreak(this); }
1193 public Kind getKind() { return Kind.BREAK; }
1194 public Name getLabel() { return label; }
1195 @Override
1196 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1197 return v.visitBreak(this, d);
1198 }
1199 @Override
1200 public int getTag() {
1201 return BREAK;
1202 }
1203 }
1205 /**
1206 * A continue of a loop.
1207 */
1208 public static class JCContinue extends JCStatement implements ContinueTree {
1209 public Name label;
1210 public JCTree target;
1211 protected JCContinue(Name label, JCTree target) {
1212 this.label = label;
1213 this.target = target;
1214 }
1215 @Override
1216 public void accept(Visitor v) { v.visitContinue(this); }
1218 public Kind getKind() { return Kind.CONTINUE; }
1219 public Name getLabel() { return label; }
1220 @Override
1221 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1222 return v.visitContinue(this, d);
1223 }
1224 @Override
1225 public int getTag() {
1226 return CONTINUE;
1227 }
1228 }
1230 /**
1231 * A return statement.
1232 */
1233 public static class JCReturn extends JCStatement implements ReturnTree {
1234 public JCExpression expr;
1235 protected JCReturn(JCExpression expr) {
1236 this.expr = expr;
1237 }
1238 @Override
1239 public void accept(Visitor v) { v.visitReturn(this); }
1241 public Kind getKind() { return Kind.RETURN; }
1242 public JCExpression getExpression() { return expr; }
1243 @Override
1244 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1245 return v.visitReturn(this, d);
1246 }
1247 @Override
1248 public int getTag() {
1249 return RETURN;
1250 }
1251 }
1253 /**
1254 * A throw statement.
1255 */
1256 public static class JCThrow extends JCStatement implements ThrowTree {
1257 public JCExpression expr;
1258 protected JCThrow(JCTree expr) {
1259 this.expr = (JCExpression)expr;
1260 }
1261 @Override
1262 public void accept(Visitor v) { v.visitThrow(this); }
1264 public Kind getKind() { return Kind.THROW; }
1265 public JCExpression getExpression() { return expr; }
1266 @Override
1267 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1268 return v.visitThrow(this, d);
1269 }
1270 @Override
1271 public int getTag() {
1272 return THROW;
1273 }
1274 }
1276 /**
1277 * An assert statement.
1278 */
1279 public static class JCAssert extends JCStatement implements AssertTree {
1280 public JCExpression cond;
1281 public JCExpression detail;
1282 protected JCAssert(JCExpression cond, JCExpression detail) {
1283 this.cond = cond;
1284 this.detail = detail;
1285 }
1286 @Override
1287 public void accept(Visitor v) { v.visitAssert(this); }
1289 public Kind getKind() { return Kind.ASSERT; }
1290 public JCExpression getCondition() { return cond; }
1291 public JCExpression getDetail() { return detail; }
1292 @Override
1293 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1294 return v.visitAssert(this, d);
1295 }
1296 @Override
1297 public int getTag() {
1298 return ASSERT;
1299 }
1300 }
1302 /**
1303 * A method invocation
1304 */
1305 public static class JCMethodInvocation extends JCExpression implements MethodInvocationTree {
1306 public List<JCExpression> typeargs;
1307 public JCExpression meth;
1308 public List<JCExpression> args;
1309 public Type varargsElement;
1310 protected JCMethodInvocation(List<JCExpression> typeargs,
1311 JCExpression meth,
1312 List<JCExpression> args)
1313 {
1314 this.typeargs = (typeargs == null) ? List.<JCExpression>nil()
1315 : typeargs;
1316 this.meth = meth;
1317 this.args = args;
1318 }
1319 @Override
1320 public void accept(Visitor v) { v.visitApply(this); }
1322 public Kind getKind() { return Kind.METHOD_INVOCATION; }
1323 public List<JCExpression> getTypeArguments() {
1324 return typeargs;
1325 }
1326 public JCExpression getMethodSelect() { return meth; }
1327 public List<JCExpression> getArguments() {
1328 return args;
1329 }
1330 @Override
1331 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1332 return v.visitMethodInvocation(this, d);
1333 }
1334 @Override
1335 public JCMethodInvocation setType(Type type) {
1336 super.setType(type);
1337 return this;
1338 }
1339 @Override
1340 public int getTag() {
1341 return(APPLY);
1342 }
1343 }
1345 /**
1346 * A new(...) operation.
1347 */
1348 public static class JCNewClass extends JCExpression implements NewClassTree {
1349 public JCExpression encl;
1350 public List<JCExpression> typeargs;
1351 public JCExpression clazz;
1352 public List<JCExpression> args;
1353 public JCClassDecl def;
1354 public Symbol constructor;
1355 public Type varargsElement;
1356 public Type constructorType;
1357 protected JCNewClass(JCExpression encl,
1358 List<JCExpression> typeargs,
1359 JCExpression clazz,
1360 List<JCExpression> args,
1361 JCClassDecl def)
1362 {
1363 this.encl = encl;
1364 this.typeargs = (typeargs == null) ? List.<JCExpression>nil()
1365 : typeargs;
1366 this.clazz = clazz;
1367 this.args = args;
1368 this.def = def;
1369 }
1370 @Override
1371 public void accept(Visitor v) { v.visitNewClass(this); }
1373 public Kind getKind() { return Kind.NEW_CLASS; }
1374 public JCExpression getEnclosingExpression() { // expr.new C< ... > ( ... )
1375 return encl;
1376 }
1377 public List<JCExpression> getTypeArguments() {
1378 return typeargs;
1379 }
1380 public JCExpression getIdentifier() { return clazz; }
1381 public List<JCExpression> getArguments() {
1382 return args;
1383 }
1384 public JCClassDecl getClassBody() { return def; }
1385 @Override
1386 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1387 return v.visitNewClass(this, d);
1388 }
1389 @Override
1390 public int getTag() {
1391 return NEWCLASS;
1392 }
1393 }
1395 /**
1396 * A new[...] operation.
1397 */
1398 public static class JCNewArray extends JCExpression implements NewArrayTree {
1399 public JCExpression elemtype;
1400 public List<JCExpression> dims;
1401 public List<JCExpression> elems;
1402 protected JCNewArray(JCExpression elemtype,
1403 List<JCExpression> dims,
1404 List<JCExpression> elems)
1405 {
1406 this.elemtype = elemtype;
1407 this.dims = dims;
1408 this.elems = elems;
1409 }
1410 @Override
1411 public void accept(Visitor v) { v.visitNewArray(this); }
1413 public Kind getKind() { return Kind.NEW_ARRAY; }
1414 public JCExpression getType() { return elemtype; }
1415 public List<JCExpression> getDimensions() {
1416 return dims;
1417 }
1418 public List<JCExpression> getInitializers() {
1419 return elems;
1420 }
1421 @Override
1422 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1423 return v.visitNewArray(this, d);
1424 }
1425 @Override
1426 public int getTag() {
1427 return NEWARRAY;
1428 }
1429 }
1431 /**
1432 * A parenthesized subexpression ( ... )
1433 */
1434 public static class JCParens extends JCExpression implements ParenthesizedTree {
1435 public JCExpression expr;
1436 protected JCParens(JCExpression expr) {
1437 this.expr = expr;
1438 }
1439 @Override
1440 public void accept(Visitor v) { v.visitParens(this); }
1442 public Kind getKind() { return Kind.PARENTHESIZED; }
1443 public JCExpression getExpression() { return expr; }
1444 @Override
1445 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1446 return v.visitParenthesized(this, d);
1447 }
1448 @Override
1449 public int getTag() {
1450 return PARENS;
1451 }
1452 }
1454 /**
1455 * A assignment with "=".
1456 */
1457 public static class JCAssign extends JCExpression implements AssignmentTree {
1458 public JCExpression lhs;
1459 public JCExpression rhs;
1460 protected JCAssign(JCExpression lhs, JCExpression rhs) {
1461 this.lhs = lhs;
1462 this.rhs = rhs;
1463 }
1464 @Override
1465 public void accept(Visitor v) { v.visitAssign(this); }
1467 public Kind getKind() { return Kind.ASSIGNMENT; }
1468 public JCExpression getVariable() { return lhs; }
1469 public JCExpression getExpression() { return rhs; }
1470 @Override
1471 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1472 return v.visitAssignment(this, d);
1473 }
1474 @Override
1475 public int getTag() {
1476 return ASSIGN;
1477 }
1478 }
1480 /**
1481 * An assignment with "+=", "|=" ...
1482 */
1483 public static class JCAssignOp extends JCExpression implements CompoundAssignmentTree {
1484 private int opcode;
1485 public JCExpression lhs;
1486 public JCExpression rhs;
1487 public Symbol operator;
1488 protected JCAssignOp(int opcode, JCTree lhs, JCTree rhs, Symbol operator) {
1489 this.opcode = opcode;
1490 this.lhs = (JCExpression)lhs;
1491 this.rhs = (JCExpression)rhs;
1492 this.operator = operator;
1493 }
1494 @Override
1495 public void accept(Visitor v) { v.visitAssignop(this); }
1497 public Kind getKind() { return TreeInfo.tagToKind(getTag()); }
1498 public JCExpression getVariable() { return lhs; }
1499 public JCExpression getExpression() { return rhs; }
1500 public Symbol getOperator() {
1501 return operator;
1502 }
1503 @Override
1504 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1505 return v.visitCompoundAssignment(this, d);
1506 }
1507 @Override
1508 public int getTag() {
1509 return opcode;
1510 }
1511 }
1513 /**
1514 * A unary operation.
1515 */
1516 public static class JCUnary extends JCExpression implements UnaryTree {
1517 private int opcode;
1518 public JCExpression arg;
1519 public Symbol operator;
1520 protected JCUnary(int opcode, JCExpression arg) {
1521 this.opcode = opcode;
1522 this.arg = arg;
1523 }
1524 @Override
1525 public void accept(Visitor v) { v.visitUnary(this); }
1527 public Kind getKind() { return TreeInfo.tagToKind(getTag()); }
1528 public JCExpression getExpression() { return arg; }
1529 public Symbol getOperator() {
1530 return operator;
1531 }
1532 @Override
1533 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1534 return v.visitUnary(this, d);
1535 }
1536 @Override
1537 public int getTag() {
1538 return opcode;
1539 }
1541 public void setTag(int tag) {
1542 opcode = tag;
1543 }
1544 }
1546 /**
1547 * A binary operation.
1548 */
1549 public static class JCBinary extends JCExpression implements BinaryTree {
1550 private int opcode;
1551 public JCExpression lhs;
1552 public JCExpression rhs;
1553 public Symbol operator;
1554 protected JCBinary(int opcode,
1555 JCExpression lhs,
1556 JCExpression rhs,
1557 Symbol operator) {
1558 this.opcode = opcode;
1559 this.lhs = lhs;
1560 this.rhs = rhs;
1561 this.operator = operator;
1562 }
1563 @Override
1564 public void accept(Visitor v) { v.visitBinary(this); }
1566 public Kind getKind() { return TreeInfo.tagToKind(getTag()); }
1567 public JCExpression getLeftOperand() { return lhs; }
1568 public JCExpression getRightOperand() { return rhs; }
1569 public Symbol getOperator() {
1570 return operator;
1571 }
1572 @Override
1573 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1574 return v.visitBinary(this, d);
1575 }
1576 @Override
1577 public int getTag() {
1578 return opcode;
1579 }
1580 }
1582 /**
1583 * A type cast.
1584 */
1585 public static class JCTypeCast extends JCExpression implements TypeCastTree {
1586 public JCTree clazz;
1587 public JCExpression expr;
1588 protected JCTypeCast(JCTree clazz, JCExpression expr) {
1589 this.clazz = clazz;
1590 this.expr = expr;
1591 }
1592 @Override
1593 public void accept(Visitor v) { v.visitTypeCast(this); }
1595 public Kind getKind() { return Kind.TYPE_CAST; }
1596 public JCTree getType() { return clazz; }
1597 public JCExpression getExpression() { return expr; }
1598 @Override
1599 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1600 return v.visitTypeCast(this, d);
1601 }
1602 @Override
1603 public int getTag() {
1604 return TYPECAST;
1605 }
1606 }
1608 /**
1609 * A type test.
1610 */
1611 public static class JCInstanceOf extends JCExpression implements InstanceOfTree {
1612 public JCExpression expr;
1613 public JCTree clazz;
1614 protected JCInstanceOf(JCExpression expr, JCTree clazz) {
1615 this.expr = expr;
1616 this.clazz = clazz;
1617 }
1618 @Override
1619 public void accept(Visitor v) { v.visitTypeTest(this); }
1621 public Kind getKind() { return Kind.INSTANCE_OF; }
1622 public JCTree getType() { return clazz; }
1623 public JCExpression getExpression() { return expr; }
1624 @Override
1625 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1626 return v.visitInstanceOf(this, d);
1627 }
1628 @Override
1629 public int getTag() {
1630 return TYPETEST;
1631 }
1632 }
1634 /**
1635 * An array selection
1636 */
1637 public static class JCArrayAccess extends JCExpression implements ArrayAccessTree {
1638 public JCExpression indexed;
1639 public JCExpression index;
1640 protected JCArrayAccess(JCExpression indexed, JCExpression index) {
1641 this.indexed = indexed;
1642 this.index = index;
1643 }
1644 @Override
1645 public void accept(Visitor v) { v.visitIndexed(this); }
1647 public Kind getKind() { return Kind.ARRAY_ACCESS; }
1648 public JCExpression getExpression() { return indexed; }
1649 public JCExpression getIndex() { return index; }
1650 @Override
1651 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1652 return v.visitArrayAccess(this, d);
1653 }
1654 @Override
1655 public int getTag() {
1656 return INDEXED;
1657 }
1658 }
1660 /**
1661 * Selects through packages and classes
1662 * @param selected selected Tree hierarchie
1663 * @param selector name of field to select thru
1664 * @param sym symbol of the selected class
1665 */
1666 public static class JCFieldAccess extends JCExpression implements MemberSelectTree {
1667 public JCExpression selected;
1668 public Name name;
1669 public Symbol sym;
1670 protected JCFieldAccess(JCExpression selected, Name name, Symbol sym) {
1671 this.selected = selected;
1672 this.name = name;
1673 this.sym = sym;
1674 }
1675 @Override
1676 public void accept(Visitor v) { v.visitSelect(this); }
1678 public Kind getKind() { return Kind.MEMBER_SELECT; }
1679 public JCExpression getExpression() { return selected; }
1680 @Override
1681 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1682 return v.visitMemberSelect(this, d);
1683 }
1684 public Name getIdentifier() { return name; }
1685 @Override
1686 public int getTag() {
1687 return SELECT;
1688 }
1689 }
1691 /**
1692 * An identifier
1693 * @param idname the name
1694 * @param sym the symbol
1695 */
1696 public static class JCIdent extends JCExpression implements IdentifierTree {
1697 public Name name;
1698 public Symbol sym;
1699 protected JCIdent(Name name, Symbol sym) {
1700 this.name = name;
1701 this.sym = sym;
1702 }
1703 @Override
1704 public void accept(Visitor v) { v.visitIdent(this); }
1706 public Kind getKind() { return Kind.IDENTIFIER; }
1707 public Name getName() { return name; }
1708 @Override
1709 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1710 return v.visitIdentifier(this, d);
1711 }
1712 public int getTag() {
1713 return IDENT;
1714 }
1715 }
1717 /**
1718 * A constant value given literally.
1719 * @param value value representation
1720 */
1721 public static class JCLiteral extends JCExpression implements LiteralTree {
1722 public int typetag;
1723 public Object value;
1724 protected JCLiteral(int typetag, Object value) {
1725 this.typetag = typetag;
1726 this.value = value;
1727 }
1728 @Override
1729 public void accept(Visitor v) { v.visitLiteral(this); }
1731 public Kind getKind() {
1732 switch (typetag) {
1733 case TypeTags.INT:
1734 return Kind.INT_LITERAL;
1735 case TypeTags.LONG:
1736 return Kind.LONG_LITERAL;
1737 case TypeTags.FLOAT:
1738 return Kind.FLOAT_LITERAL;
1739 case TypeTags.DOUBLE:
1740 return Kind.DOUBLE_LITERAL;
1741 case TypeTags.BOOLEAN:
1742 return Kind.BOOLEAN_LITERAL;
1743 case TypeTags.CHAR:
1744 return Kind.CHAR_LITERAL;
1745 case TypeTags.CLASS:
1746 return Kind.STRING_LITERAL;
1747 case TypeTags.BOT:
1748 return Kind.NULL_LITERAL;
1749 default:
1750 throw new AssertionError("unknown literal kind " + this);
1751 }
1752 }
1753 public Object getValue() {
1754 switch (typetag) {
1755 case TypeTags.BOOLEAN:
1756 int bi = (Integer) value;
1757 return (bi != 0);
1758 case TypeTags.CHAR:
1759 int ci = (Integer) value;
1760 char c = (char) ci;
1761 if (c != ci)
1762 throw new AssertionError("bad value for char literal");
1763 return c;
1764 default:
1765 return value;
1766 }
1767 }
1768 @Override
1769 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1770 return v.visitLiteral(this, d);
1771 }
1772 @Override
1773 public JCLiteral setType(Type type) {
1774 super.setType(type);
1775 return this;
1776 }
1777 @Override
1778 public int getTag() {
1779 return LITERAL;
1780 }
1781 }
1783 /**
1784 * Identifies a basic type.
1785 * @param tag the basic type id
1786 * @see TypeTags
1787 */
1788 public static class JCPrimitiveTypeTree extends JCExpression implements PrimitiveTypeTree {
1789 public int typetag;
1790 protected JCPrimitiveTypeTree(int typetag) {
1791 this.typetag = typetag;
1792 }
1793 @Override
1794 public void accept(Visitor v) { v.visitTypeIdent(this); }
1796 public Kind getKind() { return Kind.PRIMITIVE_TYPE; }
1797 public TypeKind getPrimitiveTypeKind() {
1798 switch (typetag) {
1799 case TypeTags.BOOLEAN:
1800 return TypeKind.BOOLEAN;
1801 case TypeTags.BYTE:
1802 return TypeKind.BYTE;
1803 case TypeTags.SHORT:
1804 return TypeKind.SHORT;
1805 case TypeTags.INT:
1806 return TypeKind.INT;
1807 case TypeTags.LONG:
1808 return TypeKind.LONG;
1809 case TypeTags.CHAR:
1810 return TypeKind.CHAR;
1811 case TypeTags.FLOAT:
1812 return TypeKind.FLOAT;
1813 case TypeTags.DOUBLE:
1814 return TypeKind.DOUBLE;
1815 case TypeTags.VOID:
1816 return TypeKind.VOID;
1817 default:
1818 throw new AssertionError("unknown primitive type " + this);
1819 }
1820 }
1821 @Override
1822 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1823 return v.visitPrimitiveType(this, d);
1824 }
1825 @Override
1826 public int getTag() {
1827 return TYPEIDENT;
1828 }
1829 }
1831 /**
1832 * An array type, A[]
1833 */
1834 public static class JCArrayTypeTree extends JCExpression implements ArrayTypeTree {
1835 public JCExpression elemtype;
1836 protected JCArrayTypeTree(JCExpression elemtype) {
1837 this.elemtype = elemtype;
1838 }
1839 @Override
1840 public void accept(Visitor v) { v.visitTypeArray(this); }
1842 public Kind getKind() { return Kind.ARRAY_TYPE; }
1843 public JCTree getType() { return elemtype; }
1844 @Override
1845 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1846 return v.visitArrayType(this, d);
1847 }
1848 @Override
1849 public int getTag() {
1850 return TYPEARRAY;
1851 }
1852 }
1854 /**
1855 * A parameterized type, T<...>
1856 */
1857 public static class JCTypeApply extends JCExpression implements ParameterizedTypeTree {
1858 public JCExpression clazz;
1859 public List<JCExpression> arguments;
1860 protected JCTypeApply(JCExpression clazz, List<JCExpression> arguments) {
1861 this.clazz = clazz;
1862 this.arguments = arguments;
1863 }
1864 @Override
1865 public void accept(Visitor v) { v.visitTypeApply(this); }
1867 public Kind getKind() { return Kind.PARAMETERIZED_TYPE; }
1868 public JCTree getType() { return clazz; }
1869 public List<JCExpression> getTypeArguments() {
1870 return arguments;
1871 }
1872 @Override
1873 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1874 return v.visitParameterizedType(this, d);
1875 }
1876 @Override
1877 public int getTag() {
1878 return TYPEAPPLY;
1879 }
1880 }
1882 /**
1883 * A disjunction type, T1 | T2 | ... Tn (used in multicatch statements)
1884 */
1885 public static class JCTypeDisjunction extends JCExpression implements DisjunctiveTypeTree {
1887 public List<JCExpression> alternatives;
1889 protected JCTypeDisjunction(List<JCExpression> components) {
1890 this.alternatives = components;
1891 }
1892 @Override
1893 public void accept(Visitor v) { v.visitTypeDisjunction(this); }
1895 public Kind getKind() { return Kind.DISJUNCTIVE_TYPE; }
1897 public List<JCExpression> getTypeAlternatives() {
1898 return alternatives;
1899 }
1900 @Override
1901 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1902 return v.visitDisjunctiveType(this, d);
1903 }
1904 @Override
1905 public int getTag() {
1906 return TYPEDISJUNCTION;
1907 }
1908 }
1910 /**
1911 * A formal class parameter.
1912 * @param name name
1913 * @param bounds bounds
1914 */
1915 public static class JCTypeParameter extends JCTree implements TypeParameterTree {
1916 public Name name;
1917 public List<JCExpression> bounds;
1918 protected JCTypeParameter(Name name, List<JCExpression> bounds) {
1919 this.name = name;
1920 this.bounds = bounds;
1921 }
1922 @Override
1923 public void accept(Visitor v) { v.visitTypeParameter(this); }
1925 public Kind getKind() { return Kind.TYPE_PARAMETER; }
1926 public Name getName() { return name; }
1927 public List<JCExpression> getBounds() {
1928 return bounds;
1929 }
1930 @Override
1931 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1932 return v.visitTypeParameter(this, d);
1933 }
1934 @Override
1935 public int getTag() {
1936 return TYPEPARAMETER;
1937 }
1938 }
1940 public static class JCWildcard extends JCExpression implements WildcardTree {
1941 public TypeBoundKind kind;
1942 public JCTree inner;
1943 protected JCWildcard(TypeBoundKind kind, JCTree inner) {
1944 kind.getClass(); // null-check
1945 this.kind = kind;
1946 this.inner = inner;
1947 }
1948 @Override
1949 public void accept(Visitor v) { v.visitWildcard(this); }
1951 public Kind getKind() {
1952 switch (kind.kind) {
1953 case UNBOUND:
1954 return Kind.UNBOUNDED_WILDCARD;
1955 case EXTENDS:
1956 return Kind.EXTENDS_WILDCARD;
1957 case SUPER:
1958 return Kind.SUPER_WILDCARD;
1959 default:
1960 throw new AssertionError("Unknown wildcard bound " + kind);
1961 }
1962 }
1963 public JCTree getBound() { return inner; }
1964 @Override
1965 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1966 return v.visitWildcard(this, d);
1967 }
1968 @Override
1969 public int getTag() {
1970 return WILDCARD;
1971 }
1972 }
1974 public static class TypeBoundKind extends JCTree {
1975 public BoundKind kind;
1976 protected TypeBoundKind(BoundKind kind) {
1977 this.kind = kind;
1978 }
1979 @Override
1980 public void accept(Visitor v) { v.visitTypeBoundKind(this); }
1982 public Kind getKind() {
1983 throw new AssertionError("TypeBoundKind is not part of a public API");
1984 }
1985 @Override
1986 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
1987 throw new AssertionError("TypeBoundKind is not part of a public API");
1988 }
1989 @Override
1990 public int getTag() {
1991 return TYPEBOUNDKIND;
1992 }
1993 }
1995 public static class JCAnnotation extends JCExpression implements AnnotationTree {
1996 public JCTree annotationType;
1997 public List<JCExpression> args;
1998 protected JCAnnotation(JCTree annotationType, List<JCExpression> args) {
1999 this.annotationType = annotationType;
2000 this.args = args;
2001 }
2002 @Override
2003 public void accept(Visitor v) { v.visitAnnotation(this); }
2005 public Kind getKind() { return Kind.ANNOTATION; }
2006 public JCTree getAnnotationType() { return annotationType; }
2007 public List<JCExpression> getArguments() {
2008 return args;
2009 }
2010 @Override
2011 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
2012 return v.visitAnnotation(this, d);
2013 }
2014 @Override
2015 public int getTag() {
2016 return ANNOTATION;
2017 }
2018 }
2020 public static class JCModifiers extends JCTree implements com.sun.source.tree.ModifiersTree {
2021 public long flags;
2022 public List<JCAnnotation> annotations;
2023 protected JCModifiers(long flags, List<JCAnnotation> annotations) {
2024 this.flags = flags;
2025 this.annotations = annotations;
2026 }
2027 @Override
2028 public void accept(Visitor v) { v.visitModifiers(this); }
2030 public Kind getKind() { return Kind.MODIFIERS; }
2031 public Set<Modifier> getFlags() {
2032 return Flags.asModifierSet(flags);
2033 }
2034 public List<JCAnnotation> getAnnotations() {
2035 return annotations;
2036 }
2037 @Override
2038 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
2039 return v.visitModifiers(this, d);
2040 }
2041 @Override
2042 public int getTag() {
2043 return MODIFIERS;
2044 }
2045 }
2047 public static class JCErroneous extends JCExpression
2048 implements com.sun.source.tree.ErroneousTree {
2049 public List<? extends JCTree> errs;
2050 protected JCErroneous(List<? extends JCTree> errs) {
2051 this.errs = errs;
2052 }
2053 @Override
2054 public void accept(Visitor v) { v.visitErroneous(this); }
2056 public Kind getKind() { return Kind.ERRONEOUS; }
2058 public List<? extends JCTree> getErrorTrees() {
2059 return errs;
2060 }
2062 @Override
2063 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
2064 return v.visitErroneous(this, d);
2065 }
2066 @Override
2067 public int getTag() {
2068 return ERRONEOUS;
2069 }
2070 }
2072 /** (let int x = 3; in x+2) */
2073 public static class LetExpr extends JCExpression {
2074 public List<JCVariableDecl> defs;
2075 public JCTree expr;
2076 protected LetExpr(List<JCVariableDecl> defs, JCTree expr) {
2077 this.defs = defs;
2078 this.expr = expr;
2079 }
2080 @Override
2081 public void accept(Visitor v) { v.visitLetExpr(this); }
2083 public Kind getKind() {
2084 throw new AssertionError("LetExpr is not part of a public API");
2085 }
2086 @Override
2087 public <R,D> R accept(TreeVisitor<R,D> v, D d) {
2088 throw new AssertionError("LetExpr is not part of a public API");
2089 }
2090 @Override
2091 public int getTag() {
2092 return LETEXPR;
2093 }
2094 }
2096 /** An interface for tree factories
2097 */
2098 public interface Factory {
2099 JCCompilationUnit TopLevel(List<JCAnnotation> packageAnnotations,
2100 JCExpression pid,
2101 List<JCTree> defs);
2102 JCImport Import(JCTree qualid, boolean staticImport);
2103 JCClassDecl ClassDef(JCModifiers mods,
2104 Name name,
2105 List<JCTypeParameter> typarams,
2106 JCTree extending,
2107 List<JCExpression> implementing,
2108 List<JCTree> defs);
2109 JCMethodDecl MethodDef(JCModifiers mods,
2110 Name name,
2111 JCExpression restype,
2112 List<JCTypeParameter> typarams,
2113 List<JCVariableDecl> params,
2114 List<JCExpression> thrown,
2115 JCBlock body,
2116 JCExpression defaultValue);
2117 JCVariableDecl VarDef(JCModifiers mods,
2118 Name name,
2119 JCExpression vartype,
2120 JCExpression init);
2121 JCSkip Skip();
2122 JCBlock Block(long flags, List<JCStatement> stats);
2123 JCDoWhileLoop DoLoop(JCStatement body, JCExpression cond);
2124 JCWhileLoop WhileLoop(JCExpression cond, JCStatement body);
2125 JCForLoop ForLoop(List<JCStatement> init,
2126 JCExpression cond,
2127 List<JCExpressionStatement> step,
2128 JCStatement body);
2129 JCEnhancedForLoop ForeachLoop(JCVariableDecl var, JCExpression expr, JCStatement body);
2130 JCLabeledStatement Labelled(Name label, JCStatement body);
2131 JCSwitch Switch(JCExpression selector, List<JCCase> cases);
2132 JCCase Case(JCExpression pat, List<JCStatement> stats);
2133 JCSynchronized Synchronized(JCExpression lock, JCBlock body);
2134 JCTry Try(JCBlock body, List<JCCatch> catchers, JCBlock finalizer);
2135 JCTry Try(List<JCTree> resources,
2136 JCBlock body,
2137 List<JCCatch> catchers,
2138 JCBlock finalizer);
2139 JCCatch Catch(JCVariableDecl param, JCBlock body);
2140 JCConditional Conditional(JCExpression cond,
2141 JCExpression thenpart,
2142 JCExpression elsepart);
2143 JCIf If(JCExpression cond, JCStatement thenpart, JCStatement elsepart);
2144 JCExpressionStatement Exec(JCExpression expr);
2145 JCBreak Break(Name label);
2146 JCContinue Continue(Name label);
2147 JCReturn Return(JCExpression expr);
2148 JCThrow Throw(JCTree expr);
2149 JCAssert Assert(JCExpression cond, JCExpression detail);
2150 JCMethodInvocation Apply(List<JCExpression> typeargs,
2151 JCExpression fn,
2152 List<JCExpression> args);
2153 JCNewClass NewClass(JCExpression encl,
2154 List<JCExpression> typeargs,
2155 JCExpression clazz,
2156 List<JCExpression> args,
2157 JCClassDecl def);
2158 JCNewArray NewArray(JCExpression elemtype,
2159 List<JCExpression> dims,
2160 List<JCExpression> elems);
2161 JCParens Parens(JCExpression expr);
2162 JCAssign Assign(JCExpression lhs, JCExpression rhs);
2163 JCAssignOp Assignop(int opcode, JCTree lhs, JCTree rhs);
2164 JCUnary Unary(int opcode, JCExpression arg);
2165 JCBinary Binary(int opcode, JCExpression lhs, JCExpression rhs);
2166 JCTypeCast TypeCast(JCTree expr, JCExpression type);
2167 JCInstanceOf TypeTest(JCExpression expr, JCTree clazz);
2168 JCArrayAccess Indexed(JCExpression indexed, JCExpression index);
2169 JCFieldAccess Select(JCExpression selected, Name selector);
2170 JCIdent Ident(Name idname);
2171 JCLiteral Literal(int tag, Object value);
2172 JCPrimitiveTypeTree TypeIdent(int typetag);
2173 JCArrayTypeTree TypeArray(JCExpression elemtype);
2174 JCTypeApply TypeApply(JCExpression clazz, List<JCExpression> arguments);
2175 JCTypeParameter TypeParameter(Name name, List<JCExpression> bounds);
2176 JCWildcard Wildcard(TypeBoundKind kind, JCTree type);
2177 TypeBoundKind TypeBoundKind(BoundKind kind);
2178 JCAnnotation Annotation(JCTree annotationType, List<JCExpression> args);
2179 JCModifiers Modifiers(long flags, List<JCAnnotation> annotations);
2180 JCErroneous Erroneous(List<? extends JCTree> errs);
2181 LetExpr LetExpr(List<JCVariableDecl> defs, JCTree expr);
2182 }
2184 /** A generic visitor class for trees.
2185 */
2186 public static abstract class Visitor {
2187 public void visitTopLevel(JCCompilationUnit that) { visitTree(that); }
2188 public void visitImport(JCImport that) { visitTree(that); }
2189 public void visitClassDef(JCClassDecl that) { visitTree(that); }
2190 public void visitMethodDef(JCMethodDecl that) { visitTree(that); }
2191 public void visitVarDef(JCVariableDecl that) { visitTree(that); }
2192 public void visitSkip(JCSkip that) { visitTree(that); }
2193 public void visitBlock(JCBlock that) { visitTree(that); }
2194 public void visitDoLoop(JCDoWhileLoop that) { visitTree(that); }
2195 public void visitWhileLoop(JCWhileLoop that) { visitTree(that); }
2196 public void visitForLoop(JCForLoop that) { visitTree(that); }
2197 public void visitForeachLoop(JCEnhancedForLoop that) { visitTree(that); }
2198 public void visitLabelled(JCLabeledStatement that) { visitTree(that); }
2199 public void visitSwitch(JCSwitch that) { visitTree(that); }
2200 public void visitCase(JCCase that) { visitTree(that); }
2201 public void visitSynchronized(JCSynchronized that) { visitTree(that); }
2202 public void visitTry(JCTry that) { visitTree(that); }
2203 public void visitCatch(JCCatch that) { visitTree(that); }
2204 public void visitConditional(JCConditional that) { visitTree(that); }
2205 public void visitIf(JCIf that) { visitTree(that); }
2206 public void visitExec(JCExpressionStatement that) { visitTree(that); }
2207 public void visitBreak(JCBreak that) { visitTree(that); }
2208 public void visitContinue(JCContinue that) { visitTree(that); }
2209 public void visitReturn(JCReturn that) { visitTree(that); }
2210 public void visitThrow(JCThrow that) { visitTree(that); }
2211 public void visitAssert(JCAssert that) { visitTree(that); }
2212 public void visitApply(JCMethodInvocation that) { visitTree(that); }
2213 public void visitNewClass(JCNewClass that) { visitTree(that); }
2214 public void visitNewArray(JCNewArray that) { visitTree(that); }
2215 public void visitParens(JCParens that) { visitTree(that); }
2216 public void visitAssign(JCAssign that) { visitTree(that); }
2217 public void visitAssignop(JCAssignOp that) { visitTree(that); }
2218 public void visitUnary(JCUnary that) { visitTree(that); }
2219 public void visitBinary(JCBinary that) { visitTree(that); }
2220 public void visitTypeCast(JCTypeCast that) { visitTree(that); }
2221 public void visitTypeTest(JCInstanceOf that) { visitTree(that); }
2222 public void visitIndexed(JCArrayAccess that) { visitTree(that); }
2223 public void visitSelect(JCFieldAccess that) { visitTree(that); }
2224 public void visitIdent(JCIdent that) { visitTree(that); }
2225 public void visitLiteral(JCLiteral that) { visitTree(that); }
2226 public void visitTypeIdent(JCPrimitiveTypeTree that) { visitTree(that); }
2227 public void visitTypeArray(JCArrayTypeTree that) { visitTree(that); }
2228 public void visitTypeApply(JCTypeApply that) { visitTree(that); }
2229 public void visitTypeDisjunction(JCTypeDisjunction that) { visitTree(that); }
2230 public void visitTypeParameter(JCTypeParameter that) { visitTree(that); }
2231 public void visitWildcard(JCWildcard that) { visitTree(that); }
2232 public void visitTypeBoundKind(TypeBoundKind that) { visitTree(that); }
2233 public void visitAnnotation(JCAnnotation that) { visitTree(that); }
2234 public void visitModifiers(JCModifiers that) { visitTree(that); }
2235 public void visitErroneous(JCErroneous that) { visitTree(that); }
2236 public void visitLetExpr(LetExpr that) { visitTree(that); }
2238 public void visitTree(JCTree that) { Assert.error(); }
2239 }
2241 }
