1 /*
   2  * Copyright (c) 2006, 2016, 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  */
  25 
  26 package com.sun.tools.javac.tree;
  27 
  28 import com.sun.source.tree.*;
  29 import com.sun.source.tree.Tree.Kind;
  30 import com.sun.tools.javac.tree.JCTree.*;
  31 import com.sun.tools.javac.util.DefinedBy;
  32 import com.sun.tools.javac.util.DefinedBy.Api;
  33 import com.sun.tools.javac.util.List;
  34 import com.sun.tools.javac.util.ListBuffer;
  35 
  36 /**
  37  * Creates a copy of a tree, using a given TreeMaker.
  38  * Names, literal values, etc are shared with the original.
  39  *
  40  *  <p><b>This is NOT part of any supported API.
  41  *  If you write code that depends on this, you do so at your own risk.
  42  *  This code and its internal interfaces are subject to change or
  43  *  deletion without notice.</b>
  44  */
  45 public class TreeCopier<P> implements TreeVisitor<JCTree,P> {
  46     private TreeMaker M;
  47 
  48     /** Creates a new instance of TreeCopier */
  49     public TreeCopier(TreeMaker M) {
  50         this.M = M;
  51     }
  52 
  53     public <T extends JCTree> T copy(T tree) {
  54         return copy(tree, null);
  55     }
  56 
  57     @SuppressWarnings("unchecked")
  58     public <T extends JCTree> T copy(T tree, P p) {
  59         if (tree == null)
  60             return null;
  61         return (T) (tree.accept(this, p));
  62     }
  63 
  64     public <T extends JCTree> List<T> copy(List<T> trees) {
  65         return copy(trees, null);
  66     }
  67 
  68     public <T extends JCTree> List<T> copy(List<T> trees, P p) {
  69         if (trees == null)
  70             return null;
  71         ListBuffer<T> lb = new ListBuffer<>();
  72         for (T tree: trees)
  73             lb.append(copy(tree, p));
  74         return lb.toList();
  75     }
  76 
  77     @DefinedBy(Api.COMPILER_TREE)
  78     public JCTree visitAnnotatedType(AnnotatedTypeTree node, P p) {
  79         JCAnnotatedType t = (JCAnnotatedType) node;
  80         List<JCAnnotation> annotations = copy(t.annotations, p);
  81         JCExpression underlyingType = copy(t.underlyingType, p);
  82         return M.at(t.pos).AnnotatedType(annotations, underlyingType);
  83     }
  84 
  85     @DefinedBy(Api.COMPILER_TREE)
  86     public JCTree visitAnnotation(AnnotationTree node, P p) {
  87         JCAnnotation t = (JCAnnotation) node;
  88         JCTree annotationType = copy(t.annotationType, p);
  89         List<JCExpression> args = copy(t.args, p);
  90         if (t.getKind() == Tree.Kind.TYPE_ANNOTATION) {
  91             JCAnnotation newTA = M.at(t.pos).TypeAnnotation(annotationType, args);
  92             newTA.attribute = t.attribute;
  93             return newTA;
  94         } else {
  95             JCAnnotation newT = M.at(t.pos).Annotation(annotationType, args);
  96             newT.attribute = t.attribute;
  97             return newT;
  98         }
  99     }
 100 
 101     @DefinedBy(Api.COMPILER_TREE)
 102     public JCTree visitAssert(AssertTree node, P p) {
 103         JCAssert t = (JCAssert) node;
 104         JCExpression cond = copy(t.cond, p);
 105         JCExpression detail = copy(t.detail, p);
 106         return M.at(t.pos).Assert(cond, detail);
 107     }
 108 
 109     @DefinedBy(Api.COMPILER_TREE)
 110     public JCTree visitAssignment(AssignmentTree node, P p) {
 111         JCAssign t = (JCAssign) node;
 112         JCExpression lhs = copy(t.lhs, p);
 113         JCExpression rhs = copy(t.rhs, p);
 114         return M.at(t.pos).Assign(lhs, rhs);
 115     }
 116 
 117     @DefinedBy(Api.COMPILER_TREE)
 118     public JCTree visitCompoundAssignment(CompoundAssignmentTree node, P p) {
 119         JCAssignOp t = (JCAssignOp) node;
 120         JCTree lhs = copy(t.lhs, p);
 121         JCTree rhs = copy(t.rhs, p);
 122         return M.at(t.pos).Assignop(t.getTag(), lhs, rhs);
 123     }
 124 
 125     @DefinedBy(Api.COMPILER_TREE)
 126     public JCTree visitBinary(BinaryTree node, P p) {
 127         JCBinary t = (JCBinary) node;
 128         JCExpression lhs = copy(t.lhs, p);
 129         JCExpression rhs = copy(t.rhs, p);
 130         return M.at(t.pos).Binary(t.getTag(), lhs, rhs);
 131     }
 132 
 133     @DefinedBy(Api.COMPILER_TREE)
 134     public JCTree visitBlock(BlockTree node, P p) {
 135         JCBlock t = (JCBlock) node;
 136         List<JCStatement> stats = copy(t.stats, p);
 137         return M.at(t.pos).Block(t.flags, stats);
 138     }
 139 
 140     @DefinedBy(Api.COMPILER_TREE)
 141     public JCTree visitBreak(BreakTree node, P p) {
 142         JCBreak t = (JCBreak) node;
 143         JCExpression value = copy(t.value, p);
 144         return M.at(t.pos).Break(value);
 145     }
 146 
 147     @DefinedBy(Api.COMPILER_TREE)
 148     public JCTree visitCase(CaseTree node, P p) {
 149         JCCase t = (JCCase) node;
 150         List<JCExpression> pats = copy(t.pats, p);
 151         List<JCStatement> stats = copy(t.stats, p);
 152         JCTree body = copy(t.body, p);
 153         return M.at(t.pos).Case(t.caseKind, pats, stats, body);
 154     }
 155 
 156     @DefinedBy(Api.COMPILER_TREE)
 157     public JCTree visitCatch(CatchTree node, P p) {
 158         JCCatch t = (JCCatch) node;
 159         JCVariableDecl param = copy(t.param, p);
 160         JCBlock body = copy(t.body, p);
 161         return M.at(t.pos).Catch(param, body);
 162     }
 163 
 164     @DefinedBy(Api.COMPILER_TREE)
 165     public JCTree visitClass(ClassTree node, P p) {
 166         JCClassDecl t = (JCClassDecl) node;
 167         JCModifiers mods = copy(t.mods, p);
 168         List<JCTypeParameter> typarams = copy(t.typarams, p);
 169         JCExpression extending = copy(t.extending, p);
 170         List<JCExpression> implementing = copy(t.implementing, p);
 171         List<JCTree> defs = copy(t.defs, p);
 172         return M.at(t.pos).ClassDef(mods, t.name, typarams, extending, implementing, defs);
 173     }
 174 
 175     @DefinedBy(Api.COMPILER_TREE)
 176     public JCTree visitConditionalExpression(ConditionalExpressionTree node, P p) {
 177         JCConditional t = (JCConditional) node;
 178         JCExpression cond = copy(t.cond, p);
 179         JCExpression truepart = copy(t.truepart, p);
 180         JCExpression falsepart = copy(t.falsepart, p);
 181         return M.at(t.pos).Conditional(cond, truepart, falsepart);
 182     }
 183 
 184     @DefinedBy(Api.COMPILER_TREE)
 185     public JCTree visitContinue(ContinueTree node, P p) {
 186         JCContinue t = (JCContinue) node;
 187         return M.at(t.pos).Continue(t.label);
 188     }
 189 
 190     @DefinedBy(Api.COMPILER_TREE)
 191     public JCTree visitDoWhileLoop(DoWhileLoopTree node, P p) {
 192         JCDoWhileLoop t = (JCDoWhileLoop) node;
 193         JCStatement body = copy(t.body, p);
 194         JCExpression cond = copy(t.cond, p);
 195         return M.at(t.pos).DoLoop(body, cond);
 196     }
 197 
 198     @DefinedBy(Api.COMPILER_TREE)
 199     public JCTree visitErroneous(ErroneousTree node, P p) {
 200         JCErroneous t = (JCErroneous) node;
 201         List<? extends JCTree> errs = copy(t.errs, p);
 202         return M.at(t.pos).Erroneous(errs);
 203     }
 204 
 205     @DefinedBy(Api.COMPILER_TREE)
 206     public JCTree visitExpressionStatement(ExpressionStatementTree node, P p) {
 207         JCExpressionStatement t = (JCExpressionStatement) node;
 208         JCExpression expr = copy(t.expr, p);
 209         return M.at(t.pos).Exec(expr);
 210     }
 211 
 212     @DefinedBy(Api.COMPILER_TREE)
 213     public JCTree visitEnhancedForLoop(EnhancedForLoopTree node, P p) {
 214         JCEnhancedForLoop t = (JCEnhancedForLoop) node;
 215         JCVariableDecl var = copy(t.var, p);
 216         JCExpression expr = copy(t.expr, p);
 217         JCStatement body = copy(t.body, p);
 218         return M.at(t.pos).ForeachLoop(var, expr, body);
 219     }
 220 
 221     @DefinedBy(Api.COMPILER_TREE)
 222     public JCTree visitForLoop(ForLoopTree node, P p) {
 223         JCForLoop t = (JCForLoop) node;
 224         List<JCStatement> init = copy(t.init, p);
 225         JCExpression cond = copy(t.cond, p);
 226         List<JCExpressionStatement> step = copy(t.step, p);
 227         JCStatement body = copy(t.body, p);
 228         return M.at(t.pos).ForLoop(init, cond, step, body);
 229     }
 230 
 231     @DefinedBy(Api.COMPILER_TREE)
 232     public JCTree visitIdentifier(IdentifierTree node, P p) {
 233         JCIdent t = (JCIdent) node;
 234         return M.at(t.pos).Ident(t.name);
 235     }
 236 
 237     @DefinedBy(Api.COMPILER_TREE)
 238     public JCTree visitIf(IfTree node, P p) {
 239         JCIf t = (JCIf) node;
 240         JCExpression cond = copy(t.cond, p);
 241         JCStatement thenpart = copy(t.thenpart, p);
 242         JCStatement elsepart = copy(t.elsepart, p);
 243         return M.at(t.pos).If(cond, thenpart, elsepart);
 244     }
 245 
 246     @DefinedBy(Api.COMPILER_TREE)
 247     public JCTree visitImport(ImportTree node, P p) {
 248         JCImport t = (JCImport) node;
 249         JCTree qualid = copy(t.qualid, p);
 250         return M.at(t.pos).Import(qualid, t.staticImport);
 251     }
 252 
 253     @DefinedBy(Api.COMPILER_TREE)
 254     public JCTree visitArrayAccess(ArrayAccessTree node, P p) {
 255         JCArrayAccess t = (JCArrayAccess) node;
 256         JCExpression indexed = copy(t.indexed, p);
 257         JCExpression index = copy(t.index, p);
 258         return M.at(t.pos).Indexed(indexed, index);
 259     }
 260 
 261     @DefinedBy(Api.COMPILER_TREE)
 262     public JCTree visitLabeledStatement(LabeledStatementTree node, P p) {
 263         JCLabeledStatement t = (JCLabeledStatement) node;
 264         JCStatement body = copy(t.body, p);
 265         return M.at(t.pos).Labelled(t.label, body);
 266     }
 267 
 268     @DefinedBy(Api.COMPILER_TREE)
 269     public JCTree visitLiteral(LiteralTree node, P p) {
 270         JCLiteral t = (JCLiteral) node;
 271         return M.at(t.pos).Literal(t.typetag, t.value);
 272     }
 273 
 274     @DefinedBy(Api.COMPILER_TREE)
 275     public JCTree visitMethod(MethodTree node, P p) {
 276         JCMethodDecl t  = (JCMethodDecl) node;
 277         JCModifiers mods = copy(t.mods, p);
 278         JCExpression restype = copy(t.restype, p);
 279         List<JCTypeParameter> typarams = copy(t.typarams, p);
 280         List<JCVariableDecl> params = copy(t.params, p);
 281         JCVariableDecl recvparam = copy(t.recvparam, p);
 282         List<JCExpression> thrown = copy(t.thrown, p);
 283         JCBlock body = copy(t.body, p);
 284         JCExpression defaultValue = copy(t.defaultValue, p);
 285         return M.at(t.pos).MethodDef(mods, t.name, restype, typarams, recvparam, params, thrown, body, defaultValue);
 286     }
 287 
 288     @DefinedBy(Api.COMPILER_TREE)
 289     public JCTree visitMethodInvocation(MethodInvocationTree node, P p) {
 290         JCMethodInvocation t = (JCMethodInvocation) node;
 291         List<JCExpression> typeargs = copy(t.typeargs, p);
 292         JCExpression meth = copy(t.meth, p);
 293         List<JCExpression> args = copy(t.args, p);
 294         return M.at(t.pos).Apply(typeargs, meth, args);
 295     }
 296 
 297     @DefinedBy(Api.COMPILER_TREE)
 298     public JCTree visitModifiers(ModifiersTree node, P p) {
 299         JCModifiers t = (JCModifiers) node;
 300         List<JCAnnotation> annotations = copy(t.annotations, p);
 301         return M.at(t.pos).Modifiers(t.flags, annotations);
 302     }
 303 
 304     @DefinedBy(Api.COMPILER_TREE)
 305     public JCTree visitNewArray(NewArrayTree node, P p) {
 306         JCNewArray t = (JCNewArray) node;
 307         JCExpression elemtype = copy(t.elemtype, p);
 308         List<JCExpression> dims = copy(t.dims, p);
 309         List<JCExpression> elems = copy(t.elems, p);
 310         return M.at(t.pos).NewArray(elemtype, dims, elems);
 311     }
 312 
 313     @DefinedBy(Api.COMPILER_TREE)
 314     public JCTree visitNewClass(NewClassTree node, P p) {
 315         JCNewClass t = (JCNewClass) node;
 316         JCExpression encl = copy(t.encl, p);
 317         List<JCExpression> typeargs = copy(t.typeargs, p);
 318         JCExpression clazz = copy(t.clazz, p);
 319         List<JCExpression> args = copy(t.args, p);
 320         JCClassDecl def = copy(t.def, p);
 321         return M.at(t.pos).NewClass(encl, typeargs, clazz, args, def);
 322     }
 323 
 324     @DefinedBy(Api.COMPILER_TREE)
 325     public JCTree visitLambdaExpression(LambdaExpressionTree node, P p) {
 326         JCLambda t = (JCLambda) node;
 327         List<JCVariableDecl> params = copy(t.params, p);
 328         JCTree body = copy(t.body, p);
 329         return M.at(t.pos).Lambda(params, body);
 330     }
 331 
 332     @DefinedBy(Api.COMPILER_TREE)
 333     public JCTree visitParenthesized(ParenthesizedTree node, P p) {
 334         JCParens t = (JCParens) node;
 335         JCExpression expr = copy(t.expr, p);
 336         return M.at(t.pos).Parens(expr);
 337     }
 338 
 339     @DefinedBy(Api.COMPILER_TREE)
 340     public JCTree visitReturn(ReturnTree node, P p) {
 341         JCReturn t = (JCReturn) node;
 342         JCExpression expr = copy(t.expr, p);
 343         return M.at(t.pos).Return(expr);
 344     }
 345 
 346     @DefinedBy(Api.COMPILER_TREE)
 347     public JCTree visitMemberSelect(MemberSelectTree node, P p) {
 348         JCFieldAccess t = (JCFieldAccess) node;
 349         JCExpression selected = copy(t.selected, p);
 350         return M.at(t.pos).Select(selected, t.name);
 351     }
 352 
 353     @DefinedBy(Api.COMPILER_TREE)
 354     public JCTree visitMemberReference(MemberReferenceTree node, P p) {
 355         JCMemberReference t = (JCMemberReference) node;
 356         JCExpression expr = copy(t.expr, p);
 357         List<JCExpression> typeargs = copy(t.typeargs, p);
 358         return M.at(t.pos).Reference(t.mode, t.name, expr, typeargs);
 359     }
 360 
 361     @DefinedBy(Api.COMPILER_TREE)
 362     public JCTree visitEmptyStatement(EmptyStatementTree node, P p) {
 363         JCSkip t = (JCSkip) node;
 364         return M.at(t.pos).Skip();
 365     }
 366 
 367     @DefinedBy(Api.COMPILER_TREE)
 368     public JCTree visitSwitch(SwitchTree node, P p) {
 369         JCSwitch t = (JCSwitch) node;
 370         JCExpression selector = copy(t.selector, p);
 371         List<JCCase> cases = copy(t.cases, p);
 372         return M.at(t.pos).Switch(selector, cases);
 373     }
 374 
 375     @DefinedBy(Api.COMPILER_TREE)
 376     @SuppressWarnings("removal")
 377     public JCTree visitSwitchExpression(SwitchExpressionTree node, P p) {
 378         JCSwitchExpression t = (JCSwitchExpression) node;
 379         JCExpression selector = copy(t.selector, p);
 380         List<JCCase> cases = copy(t.cases, p);
 381         return M.at(t.pos).SwitchExpression(selector, cases);
 382     }
 383 
 384     @DefinedBy(Api.COMPILER_TREE)
 385     public JCTree visitSynchronized(SynchronizedTree node, P p) {
 386         JCSynchronized t = (JCSynchronized) node;
 387         JCExpression lock = copy(t.lock, p);
 388         JCBlock body = copy(t.body, p);
 389         return M.at(t.pos).Synchronized(lock, body);
 390     }
 391 
 392     @DefinedBy(Api.COMPILER_TREE)
 393     public JCTree visitThrow(ThrowTree node, P p) {
 394         JCThrow t = (JCThrow) node;
 395         JCExpression expr = copy(t.expr, p);
 396         return M.at(t.pos).Throw(expr);
 397     }
 398 
 399     @DefinedBy(Api.COMPILER_TREE)
 400     public JCTree visitCompilationUnit(CompilationUnitTree node, P p) {
 401         JCCompilationUnit t = (JCCompilationUnit) node;
 402         List<JCTree> defs = copy(t.defs, p);
 403         return M.at(t.pos).TopLevel(defs);
 404     }
 405 
 406     @DefinedBy(Api.COMPILER_TREE)
 407     public JCTree visitPackage(PackageTree node, P p) {
 408         JCPackageDecl t = (JCPackageDecl) node;
 409         List<JCAnnotation> annotations = copy(t.annotations, p);
 410         JCExpression pid = copy(t.pid, p);
 411         return M.at(t.pos).PackageDecl(annotations, pid);
 412     }
 413 
 414     @DefinedBy(Api.COMPILER_TREE)
 415     public JCTree visitTry(TryTree node, P p) {
 416         JCTry t = (JCTry) node;
 417         List<JCTree> resources = copy(t.resources, p);
 418         JCBlock body = copy(t.body, p);
 419         List<JCCatch> catchers = copy(t.catchers, p);
 420         JCBlock finalizer = copy(t.finalizer, p);
 421         return M.at(t.pos).Try(resources, body, catchers, finalizer);
 422     }
 423 
 424     @DefinedBy(Api.COMPILER_TREE)
 425     public JCTree visitParameterizedType(ParameterizedTypeTree node, P p) {
 426         JCTypeApply t = (JCTypeApply) node;
 427         JCExpression clazz = copy(t.clazz, p);
 428         List<JCExpression> arguments = copy(t.arguments, p);
 429         return M.at(t.pos).TypeApply(clazz, arguments);
 430     }
 431 
 432     @DefinedBy(Api.COMPILER_TREE)
 433     public JCTree visitUnionType(UnionTypeTree node, P p) {
 434         JCTypeUnion t = (JCTypeUnion) node;
 435         List<JCExpression> components = copy(t.alternatives, p);
 436         return M.at(t.pos).TypeUnion(components);
 437     }
 438 
 439     @DefinedBy(Api.COMPILER_TREE)
 440     public JCTree visitIntersectionType(IntersectionTypeTree node, P p) {
 441         JCTypeIntersection t = (JCTypeIntersection) node;
 442         List<JCExpression> bounds = copy(t.bounds, p);
 443         return M.at(t.pos).TypeIntersection(bounds);
 444     }
 445 
 446     @DefinedBy(Api.COMPILER_TREE)
 447     public JCTree visitArrayType(ArrayTypeTree node, P p) {
 448         JCArrayTypeTree t = (JCArrayTypeTree) node;
 449         JCExpression elemtype = copy(t.elemtype, p);
 450         return M.at(t.pos).TypeArray(elemtype);
 451     }
 452 
 453     @DefinedBy(Api.COMPILER_TREE)
 454     public JCTree visitTypeCast(TypeCastTree node, P p) {
 455         JCTypeCast t = (JCTypeCast) node;
 456         JCTree clazz = copy(t.clazz, p);
 457         JCExpression expr = copy(t.expr, p);
 458         return M.at(t.pos).TypeCast(clazz, expr);
 459     }
 460 
 461     @DefinedBy(Api.COMPILER_TREE)
 462     public JCTree visitPrimitiveType(PrimitiveTypeTree node, P p) {
 463         JCPrimitiveTypeTree t = (JCPrimitiveTypeTree) node;
 464         return M.at(t.pos).TypeIdent(t.typetag);
 465     }
 466 
 467     @DefinedBy(Api.COMPILER_TREE)
 468     public JCTree visitTypeParameter(TypeParameterTree node, P p) {
 469         JCTypeParameter t = (JCTypeParameter) node;
 470         List<JCAnnotation> annos = copy(t.annotations, p);
 471         List<JCExpression> bounds = copy(t.bounds, p);
 472         return M.at(t.pos).TypeParameter(t.name, bounds, annos);
 473     }
 474 
 475     @DefinedBy(Api.COMPILER_TREE)
 476     public JCTree visitInstanceOf(InstanceOfTree node, P p) {
 477         JCInstanceOf t = (JCInstanceOf) node;
 478         JCExpression expr = copy(t.expr, p);
 479         JCTree clazz = copy(t.clazz, p);
 480         return M.at(t.pos).TypeTest(expr, clazz);
 481     }
 482 
 483     @DefinedBy(Api.COMPILER_TREE)
 484     public JCTree visitUnary(UnaryTree node, P p) {
 485         JCUnary t = (JCUnary) node;
 486         JCExpression arg = copy(t.arg, p);
 487         return M.at(t.pos).Unary(t.getTag(), arg);
 488     }
 489 
 490     @DefinedBy(Api.COMPILER_TREE)
 491     public JCTree visitVariable(VariableTree node, P p) {
 492         JCVariableDecl t = (JCVariableDecl) node;
 493         JCModifiers mods = copy(t.mods, p);
 494         JCExpression vartype = copy(t.vartype, p);
 495         if (t.nameexpr == null) {
 496             JCExpression init = copy(t.init, p);
 497             return M.at(t.pos).VarDef(mods, t.name, vartype, init);
 498         } else {
 499             JCExpression nameexpr = copy(t.nameexpr, p);
 500             return M.at(t.pos).ReceiverVarDef(mods, nameexpr, vartype);
 501         }
 502     }
 503 
 504     @DefinedBy(Api.COMPILER_TREE)
 505     public JCTree visitWhileLoop(WhileLoopTree node, P p) {
 506         JCWhileLoop t = (JCWhileLoop) node;
 507         JCStatement body = copy(t.body, p);
 508         JCExpression cond = copy(t.cond, p);
 509         return M.at(t.pos).WhileLoop(cond, body);
 510     }
 511 
 512     @DefinedBy(Api.COMPILER_TREE)
 513     public JCTree visitWildcard(WildcardTree node, P p) {
 514         JCWildcard t = (JCWildcard) node;
 515         TypeBoundKind kind = M.at(t.kind.pos).TypeBoundKind(t.kind.kind);
 516         JCTree inner = copy(t.inner, p);
 517         return M.at(t.pos).Wildcard(kind, inner);
 518     }
 519 
 520     @Override @DefinedBy(Api.COMPILER_TREE)
 521     public JCTree visitModule(ModuleTree node, P p) {
 522         JCModuleDecl t = (JCModuleDecl) node;
 523         JCModifiers mods = copy(t.mods, p);
 524         JCExpression qualId = copy(t.qualId);
 525         List<JCDirective> directives = copy(t.directives);
 526         return M.at(t.pos).ModuleDef(mods, t.getModuleType(), qualId, directives);
 527     }
 528 
 529     @Override @DefinedBy(Api.COMPILER_TREE)
 530     public JCExports visitExports(ExportsTree node, P p) {
 531         JCExports t = (JCExports) node;
 532         JCExpression qualId = copy(t.qualid, p);
 533         List<JCExpression> moduleNames = copy(t.moduleNames, p);
 534         return M.at(t.pos).Exports(qualId, moduleNames);
 535     }
 536 
 537     @Override @DefinedBy(Api.COMPILER_TREE)
 538     public JCOpens visitOpens(OpensTree node, P p) {
 539         JCOpens t = (JCOpens) node;
 540         JCExpression qualId = copy(t.qualid, p);
 541         List<JCExpression> moduleNames = copy(t.moduleNames, p);
 542         return M.at(t.pos).Opens(qualId, moduleNames);
 543     }
 544 
 545     @Override @DefinedBy(Api.COMPILER_TREE)
 546     public JCProvides visitProvides(ProvidesTree node, P p) {
 547         JCProvides t = (JCProvides) node;
 548         JCExpression serviceName = copy(t.serviceName, p);
 549         List<JCExpression> implNames = copy(t.implNames, p);
 550         return M.at(t.pos).Provides(serviceName, implNames);
 551     }
 552 
 553     @Override @DefinedBy(Api.COMPILER_TREE)
 554     public JCRequires visitRequires(RequiresTree node, P p) {
 555         JCRequires t = (JCRequires) node;
 556         JCExpression moduleName = copy(t.moduleName, p);
 557         return M.at(t.pos).Requires(t.isTransitive, t.isStaticPhase, moduleName);
 558     }
 559 
 560     @Override @DefinedBy(Api.COMPILER_TREE)
 561     public JCUses visitUses(UsesTree node, P p) {
 562         JCUses t = (JCUses) node;
 563         JCExpression serviceName = copy(t.qualid, p);
 564         return M.at(t.pos).Uses(serviceName);
 565     }
 566 
 567     @DefinedBy(Api.COMPILER_TREE)
 568     public JCTree visitOther(Tree node, P p) {
 569         JCTree tree = (JCTree) node;
 570         switch (tree.getTag()) {
 571             case LETEXPR: {
 572                 LetExpr t = (LetExpr) node;
 573                 List<JCStatement> defs = copy(t.defs, p);
 574                 JCExpression expr = copy(t.expr, p);
 575                 return M.at(t.pos).LetExpr(defs, expr);
 576             }
 577             default:
 578                 throw new AssertionError("unknown tree tag: " + tree.getTag());
 579         }
 580     }
 581 
 582 }