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

Tue, 14 May 2013 15:04:06 -0700

author
jjg
date
Tue, 14 May 2013 15:04:06 -0700
changeset 1755
ddb4a2bfcd82
parent 1521
71f35e4b93a5
child 2370
acd64168cf8b
permissions
-rw-r--r--

8013852: update reference impl for type-annotations
Reviewed-by: jjg
Contributed-by: wdietl@gmail.com, steve.sides@oracle.com, joel.franck@oracle.com, alex.buckley@oracle.com

duke@1 1 /*
jjg@1521 2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
ohair@554 7 * published by the Free Software Foundation. Oracle designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
ohair@554 9 * by Oracle in the LICENSE file that accompanied this code.
duke@1 10 *
duke@1 11 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 14 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 15 * accompanied this code).
duke@1 16 *
duke@1 17 * You should have received a copy of the GNU General Public License version
duke@1 18 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 20 *
ohair@554 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 22 * or visit www.oracle.com if you need additional information or have any
ohair@554 23 * questions.
duke@1 24 */
duke@1 25
duke@1 26 package com.sun.tools.javac.tree;
duke@1 27
duke@1 28 import com.sun.tools.javac.util.*;
duke@1 29 import com.sun.tools.javac.tree.JCTree.*;
duke@1 30
duke@1 31 /** A subclass of Tree.Visitor, this class defines
duke@1 32 * a general tree translator pattern. Translation proceeds recursively in
duke@1 33 * left-to-right order down a tree, constructing translated nodes by
duke@1 34 * overwriting existing ones. There is one visitor method in this class
duke@1 35 * for every possible kind of tree node. To obtain a specific
duke@1 36 * translator, it suffices to override those visitor methods which
duke@1 37 * do some interesting work. The translator class itself takes care of all
duke@1 38 * navigational aspects.
duke@1 39 *
jjg@581 40 * <p><b>This is NOT part of any supported API.
jjg@581 41 * If you write code that depends on this, you do so at your own risk.
duke@1 42 * This code and its internal interfaces are subject to change or
duke@1 43 * deletion without notice.</b>
duke@1 44 */
duke@1 45 public class TreeTranslator extends JCTree.Visitor {
duke@1 46
duke@1 47 /** Visitor result field: a tree
duke@1 48 */
duke@1 49 protected JCTree result;
duke@1 50
duke@1 51 /** Visitor method: Translate a single node.
duke@1 52 */
duke@1 53 @SuppressWarnings("unchecked")
duke@1 54 public <T extends JCTree> T translate(T tree) {
duke@1 55 if (tree == null) {
duke@1 56 return null;
duke@1 57 } else {
duke@1 58 tree.accept(this);
duke@1 59 JCTree result = this.result;
duke@1 60 this.result = null;
duke@1 61 return (T)result; // XXX cast
duke@1 62 }
duke@1 63 }
duke@1 64
duke@1 65 /** Visitor method: translate a list of nodes.
duke@1 66 */
duke@1 67 public <T extends JCTree> List<T> translate(List<T> trees) {
duke@1 68 if (trees == null) return null;
duke@1 69 for (List<T> l = trees; l.nonEmpty(); l = l.tail)
duke@1 70 l.head = translate(l.head);
duke@1 71 return trees;
duke@1 72 }
duke@1 73
duke@1 74 /** Visitor method: translate a list of variable definitions.
duke@1 75 */
duke@1 76 public List<JCVariableDecl> translateVarDefs(List<JCVariableDecl> trees) {
duke@1 77 for (List<JCVariableDecl> l = trees; l.nonEmpty(); l = l.tail)
duke@1 78 l.head = translate(l.head);
duke@1 79 return trees;
duke@1 80 }
duke@1 81
duke@1 82 /** Visitor method: translate a list of type parameters.
duke@1 83 */
duke@1 84 public List<JCTypeParameter> translateTypeParams(List<JCTypeParameter> trees) {
duke@1 85 for (List<JCTypeParameter> l = trees; l.nonEmpty(); l = l.tail)
duke@1 86 l.head = translate(l.head);
duke@1 87 return trees;
duke@1 88 }
duke@1 89
duke@1 90 /** Visitor method: translate a list of case parts of switch statements.
duke@1 91 */
duke@1 92 public List<JCCase> translateCases(List<JCCase> trees) {
duke@1 93 for (List<JCCase> l = trees; l.nonEmpty(); l = l.tail)
duke@1 94 l.head = translate(l.head);
duke@1 95 return trees;
duke@1 96 }
duke@1 97
duke@1 98 /** Visitor method: translate a list of catch clauses in try statements.
duke@1 99 */
duke@1 100 public List<JCCatch> translateCatchers(List<JCCatch> trees) {
duke@1 101 for (List<JCCatch> l = trees; l.nonEmpty(); l = l.tail)
duke@1 102 l.head = translate(l.head);
duke@1 103 return trees;
duke@1 104 }
duke@1 105
duke@1 106 /** Visitor method: translate a list of catch clauses in try statements.
duke@1 107 */
duke@1 108 public List<JCAnnotation> translateAnnotations(List<JCAnnotation> trees) {
duke@1 109 for (List<JCAnnotation> l = trees; l.nonEmpty(); l = l.tail)
duke@1 110 l.head = translate(l.head);
duke@1 111 return trees;
duke@1 112 }
duke@1 113
duke@1 114 /* ***************************************************************************
duke@1 115 * Visitor methods
duke@1 116 ****************************************************************************/
duke@1 117
duke@1 118 public void visitTopLevel(JCCompilationUnit tree) {
duke@1 119 tree.pid = translate(tree.pid);
duke@1 120 tree.defs = translate(tree.defs);
duke@1 121 result = tree;
duke@1 122 }
duke@1 123
duke@1 124 public void visitImport(JCImport tree) {
duke@1 125 tree.qualid = translate(tree.qualid);
duke@1 126 result = tree;
duke@1 127 }
duke@1 128
duke@1 129 public void visitClassDef(JCClassDecl tree) {
duke@1 130 tree.mods = translate(tree.mods);
duke@1 131 tree.typarams = translateTypeParams(tree.typarams);
duke@1 132 tree.extending = translate(tree.extending);
duke@1 133 tree.implementing = translate(tree.implementing);
duke@1 134 tree.defs = translate(tree.defs);
duke@1 135 result = tree;
duke@1 136 }
duke@1 137
duke@1 138 public void visitMethodDef(JCMethodDecl tree) {
duke@1 139 tree.mods = translate(tree.mods);
duke@1 140 tree.restype = translate(tree.restype);
duke@1 141 tree.typarams = translateTypeParams(tree.typarams);
jjg@1521 142 tree.recvparam = translate(tree.recvparam);
duke@1 143 tree.params = translateVarDefs(tree.params);
duke@1 144 tree.thrown = translate(tree.thrown);
duke@1 145 tree.body = translate(tree.body);
duke@1 146 result = tree;
duke@1 147 }
duke@1 148
duke@1 149 public void visitVarDef(JCVariableDecl tree) {
duke@1 150 tree.mods = translate(tree.mods);
jjg@1755 151 tree.nameexpr = translate(tree.nameexpr);
duke@1 152 tree.vartype = translate(tree.vartype);
duke@1 153 tree.init = translate(tree.init);
duke@1 154 result = tree;
duke@1 155 }
duke@1 156
duke@1 157 public void visitSkip(JCSkip tree) {
duke@1 158 result = tree;
duke@1 159 }
duke@1 160
duke@1 161 public void visitBlock(JCBlock tree) {
duke@1 162 tree.stats = translate(tree.stats);
duke@1 163 result = tree;
duke@1 164 }
duke@1 165
duke@1 166 public void visitDoLoop(JCDoWhileLoop tree) {
duke@1 167 tree.body = translate(tree.body);
duke@1 168 tree.cond = translate(tree.cond);
duke@1 169 result = tree;
duke@1 170 }
duke@1 171
duke@1 172 public void visitWhileLoop(JCWhileLoop tree) {
duke@1 173 tree.cond = translate(tree.cond);
duke@1 174 tree.body = translate(tree.body);
duke@1 175 result = tree;
duke@1 176 }
duke@1 177
duke@1 178 public void visitForLoop(JCForLoop tree) {
duke@1 179 tree.init = translate(tree.init);
duke@1 180 tree.cond = translate(tree.cond);
duke@1 181 tree.step = translate(tree.step);
duke@1 182 tree.body = translate(tree.body);
duke@1 183 result = tree;
duke@1 184 }
duke@1 185
duke@1 186 public void visitForeachLoop(JCEnhancedForLoop tree) {
duke@1 187 tree.var = translate(tree.var);
duke@1 188 tree.expr = translate(tree.expr);
duke@1 189 tree.body = translate(tree.body);
duke@1 190 result = tree;
duke@1 191 }
duke@1 192
duke@1 193 public void visitLabelled(JCLabeledStatement tree) {
duke@1 194 tree.body = translate(tree.body);
duke@1 195 result = tree;
duke@1 196 }
duke@1 197
duke@1 198 public void visitSwitch(JCSwitch tree) {
duke@1 199 tree.selector = translate(tree.selector);
duke@1 200 tree.cases = translateCases(tree.cases);
duke@1 201 result = tree;
duke@1 202 }
duke@1 203
duke@1 204 public void visitCase(JCCase tree) {
duke@1 205 tree.pat = translate(tree.pat);
duke@1 206 tree.stats = translate(tree.stats);
duke@1 207 result = tree;
duke@1 208 }
duke@1 209
duke@1 210 public void visitSynchronized(JCSynchronized tree) {
duke@1 211 tree.lock = translate(tree.lock);
duke@1 212 tree.body = translate(tree.body);
duke@1 213 result = tree;
duke@1 214 }
duke@1 215
duke@1 216 public void visitTry(JCTry tree) {
darcy@609 217 tree.resources = translate(tree.resources);
duke@1 218 tree.body = translate(tree.body);
duke@1 219 tree.catchers = translateCatchers(tree.catchers);
duke@1 220 tree.finalizer = translate(tree.finalizer);
duke@1 221 result = tree;
duke@1 222 }
duke@1 223
duke@1 224 public void visitCatch(JCCatch tree) {
duke@1 225 tree.param = translate(tree.param);
duke@1 226 tree.body = translate(tree.body);
duke@1 227 result = tree;
duke@1 228 }
duke@1 229
duke@1 230 public void visitConditional(JCConditional tree) {
duke@1 231 tree.cond = translate(tree.cond);
duke@1 232 tree.truepart = translate(tree.truepart);
duke@1 233 tree.falsepart = translate(tree.falsepart);
duke@1 234 result = tree;
duke@1 235 }
duke@1 236
duke@1 237 public void visitIf(JCIf tree) {
duke@1 238 tree.cond = translate(tree.cond);
duke@1 239 tree.thenpart = translate(tree.thenpart);
duke@1 240 tree.elsepart = translate(tree.elsepart);
duke@1 241 result = tree;
duke@1 242 }
duke@1 243
duke@1 244 public void visitExec(JCExpressionStatement tree) {
duke@1 245 tree.expr = translate(tree.expr);
duke@1 246 result = tree;
duke@1 247 }
duke@1 248
duke@1 249 public void visitBreak(JCBreak tree) {
duke@1 250 result = tree;
duke@1 251 }
duke@1 252
duke@1 253 public void visitContinue(JCContinue tree) {
duke@1 254 result = tree;
duke@1 255 }
duke@1 256
duke@1 257 public void visitReturn(JCReturn tree) {
duke@1 258 tree.expr = translate(tree.expr);
duke@1 259 result = tree;
duke@1 260 }
duke@1 261
duke@1 262 public void visitThrow(JCThrow tree) {
duke@1 263 tree.expr = translate(tree.expr);
duke@1 264 result = tree;
duke@1 265 }
duke@1 266
duke@1 267 public void visitAssert(JCAssert tree) {
duke@1 268 tree.cond = translate(tree.cond);
duke@1 269 tree.detail = translate(tree.detail);
duke@1 270 result = tree;
duke@1 271 }
duke@1 272
duke@1 273 public void visitApply(JCMethodInvocation tree) {
duke@1 274 tree.meth = translate(tree.meth);
duke@1 275 tree.args = translate(tree.args);
duke@1 276 result = tree;
duke@1 277 }
duke@1 278
duke@1 279 public void visitNewClass(JCNewClass tree) {
duke@1 280 tree.encl = translate(tree.encl);
duke@1 281 tree.clazz = translate(tree.clazz);
duke@1 282 tree.args = translate(tree.args);
duke@1 283 tree.def = translate(tree.def);
duke@1 284 result = tree;
duke@1 285 }
duke@1 286
mcimadamore@1142 287 public void visitLambda(JCLambda tree) {
mcimadamore@1142 288 tree.params = translate(tree.params);
mcimadamore@1142 289 tree.body = translate(tree.body);
mcimadamore@1142 290 result = tree;
mcimadamore@1142 291 }
mcimadamore@1142 292
duke@1 293 public void visitNewArray(JCNewArray tree) {
jjg@1521 294 tree.annotations = translate(tree.annotations);
jjg@1521 295 List<List<JCAnnotation>> dimAnnos = List.nil();
jjg@1521 296 for (List<JCAnnotation> origDimAnnos : tree.dimAnnotations)
jjg@1521 297 dimAnnos = dimAnnos.append(translate(origDimAnnos));
jjg@1521 298 tree.dimAnnotations = dimAnnos;
duke@1 299 tree.elemtype = translate(tree.elemtype);
duke@1 300 tree.dims = translate(tree.dims);
duke@1 301 tree.elems = translate(tree.elems);
duke@1 302 result = tree;
duke@1 303 }
duke@1 304
duke@1 305 public void visitParens(JCParens tree) {
duke@1 306 tree.expr = translate(tree.expr);
duke@1 307 result = tree;
duke@1 308 }
duke@1 309
duke@1 310 public void visitAssign(JCAssign tree) {
duke@1 311 tree.lhs = translate(tree.lhs);
duke@1 312 tree.rhs = translate(tree.rhs);
duke@1 313 result = tree;
duke@1 314 }
duke@1 315
duke@1 316 public void visitAssignop(JCAssignOp tree) {
duke@1 317 tree.lhs = translate(tree.lhs);
duke@1 318 tree.rhs = translate(tree.rhs);
duke@1 319 result = tree;
duke@1 320 }
duke@1 321
duke@1 322 public void visitUnary(JCUnary tree) {
duke@1 323 tree.arg = translate(tree.arg);
duke@1 324 result = tree;
duke@1 325 }
duke@1 326
duke@1 327 public void visitBinary(JCBinary tree) {
duke@1 328 tree.lhs = translate(tree.lhs);
duke@1 329 tree.rhs = translate(tree.rhs);
duke@1 330 result = tree;
duke@1 331 }
duke@1 332
duke@1 333 public void visitTypeCast(JCTypeCast tree) {
duke@1 334 tree.clazz = translate(tree.clazz);
duke@1 335 tree.expr = translate(tree.expr);
duke@1 336 result = tree;
duke@1 337 }
duke@1 338
duke@1 339 public void visitTypeTest(JCInstanceOf tree) {
duke@1 340 tree.expr = translate(tree.expr);
duke@1 341 tree.clazz = translate(tree.clazz);
duke@1 342 result = tree;
duke@1 343 }
duke@1 344
duke@1 345 public void visitIndexed(JCArrayAccess tree) {
duke@1 346 tree.indexed = translate(tree.indexed);
duke@1 347 tree.index = translate(tree.index);
duke@1 348 result = tree;
duke@1 349 }
duke@1 350
duke@1 351 public void visitSelect(JCFieldAccess tree) {
duke@1 352 tree.selected = translate(tree.selected);
duke@1 353 result = tree;
duke@1 354 }
duke@1 355
mcimadamore@1143 356 public void visitReference(JCMemberReference tree) {
mcimadamore@1143 357 tree.expr = translate(tree.expr);
mcimadamore@1143 358 result = tree;
mcimadamore@1143 359 }
mcimadamore@1143 360
duke@1 361 public void visitIdent(JCIdent tree) {
duke@1 362 result = tree;
duke@1 363 }
duke@1 364
duke@1 365 public void visitLiteral(JCLiteral tree) {
duke@1 366 result = tree;
duke@1 367 }
duke@1 368
duke@1 369 public void visitTypeIdent(JCPrimitiveTypeTree tree) {
duke@1 370 result = tree;
duke@1 371 }
duke@1 372
duke@1 373 public void visitTypeArray(JCArrayTypeTree tree) {
duke@1 374 tree.elemtype = translate(tree.elemtype);
duke@1 375 result = tree;
duke@1 376 }
duke@1 377
duke@1 378 public void visitTypeApply(JCTypeApply tree) {
duke@1 379 tree.clazz = translate(tree.clazz);
duke@1 380 tree.arguments = translate(tree.arguments);
duke@1 381 result = tree;
duke@1 382 }
duke@1 383
darcy@969 384 public void visitTypeUnion(JCTypeUnion tree) {
jjg@724 385 tree.alternatives = translate(tree.alternatives);
mcimadamore@550 386 result = tree;
mcimadamore@550 387 }
mcimadamore@550 388
mcimadamore@1436 389 public void visitTypeIntersection(JCTypeIntersection tree) {
mcimadamore@1436 390 tree.bounds = translate(tree.bounds);
mcimadamore@1436 391 result = tree;
mcimadamore@1436 392 }
mcimadamore@1436 393
duke@1 394 public void visitTypeParameter(JCTypeParameter tree) {
jjg@1521 395 tree.annotations = translate(tree.annotations);
duke@1 396 tree.bounds = translate(tree.bounds);
duke@1 397 result = tree;
duke@1 398 }
duke@1 399
duke@1 400 @Override
duke@1 401 public void visitWildcard(JCWildcard tree) {
duke@1 402 tree.kind = translate(tree.kind);
duke@1 403 tree.inner = translate(tree.inner);
duke@1 404 result = tree;
duke@1 405 }
duke@1 406
duke@1 407 @Override
duke@1 408 public void visitTypeBoundKind(TypeBoundKind tree) {
duke@1 409 result = tree;
duke@1 410 }
duke@1 411
duke@1 412 public void visitErroneous(JCErroneous tree) {
duke@1 413 result = tree;
duke@1 414 }
duke@1 415
duke@1 416 public void visitLetExpr(LetExpr tree) {
duke@1 417 tree.defs = translateVarDefs(tree.defs);
duke@1 418 tree.expr = translate(tree.expr);
duke@1 419 result = tree;
duke@1 420 }
duke@1 421
duke@1 422 public void visitModifiers(JCModifiers tree) {
duke@1 423 tree.annotations = translateAnnotations(tree.annotations);
duke@1 424 result = tree;
duke@1 425 }
duke@1 426
duke@1 427 public void visitAnnotation(JCAnnotation tree) {
duke@1 428 tree.annotationType = translate(tree.annotationType);
duke@1 429 tree.args = translate(tree.args);
duke@1 430 result = tree;
duke@1 431 }
duke@1 432
jjg@1521 433 public void visitAnnotatedType(JCAnnotatedType tree) {
jjg@1521 434 tree.annotations = translate(tree.annotations);
jjg@1521 435 tree.underlyingType = translate(tree.underlyingType);
jjg@1521 436 result = tree;
jjg@1521 437 }
jjg@1521 438
duke@1 439 public void visitTree(JCTree tree) {
duke@1 440 throw new AssertionError(tree);
duke@1 441 }
duke@1 442 }

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