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

Mon, 22 Aug 2016 11:06:41 -0700

author
asaha
date
Mon, 22 Aug 2016 11:06:41 -0700
changeset 3277
458d4cd8d984
parent 1755
ddb4a2bfcd82
child 2525
2eb010b6cb22
permissions
-rw-r--r--

8164453: 8u112 L10n resource file update - msgdrop 20
Summary: 8u112 L10n resource file update - msgdrop 20
Reviewed-by: coffeys
Contributed-by: li.jiang@oracle.com

duke@1 1 /*
jjg@1521 2 * Copyright (c) 2001, 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 scanner pattern. Translation proceeds recursively in
duke@1 33 * left-to-right order down a tree. There is one visitor method in this class
duke@1 34 * for every possible kind of tree node. To obtain a specific
duke@1 35 * scanner, it suffices to override those visitor methods which
duke@1 36 * do some interesting work. The scanner class itself takes care of all
duke@1 37 * navigational aspects.
duke@1 38 *
jjg@581 39 * <p><b>This is NOT part of any supported API.
jjg@581 40 * If you write code that depends on this, you do so at your own risk.
duke@1 41 * This code and its internal interfaces are subject to change or
duke@1 42 * deletion without notice.</b>
duke@1 43 */
duke@1 44 public class TreeScanner extends Visitor {
duke@1 45
duke@1 46 /** Visitor method: Scan a single node.
duke@1 47 */
duke@1 48 public void scan(JCTree tree) {
duke@1 49 if(tree!=null) tree.accept(this);
duke@1 50 }
duke@1 51
duke@1 52 /** Visitor method: scan a list of nodes.
duke@1 53 */
duke@1 54 public void scan(List<? extends JCTree> trees) {
duke@1 55 if (trees != null)
duke@1 56 for (List<? extends JCTree> l = trees; l.nonEmpty(); l = l.tail)
duke@1 57 scan(l.head);
duke@1 58 }
duke@1 59
duke@1 60
duke@1 61 /* ***************************************************************************
duke@1 62 * Visitor methods
duke@1 63 ****************************************************************************/
duke@1 64
duke@1 65 public void visitTopLevel(JCCompilationUnit tree) {
duke@1 66 scan(tree.packageAnnotations);
duke@1 67 scan(tree.pid);
duke@1 68 scan(tree.defs);
duke@1 69 }
duke@1 70
duke@1 71 public void visitImport(JCImport tree) {
duke@1 72 scan(tree.qualid);
duke@1 73 }
duke@1 74
duke@1 75 public void visitClassDef(JCClassDecl tree) {
duke@1 76 scan(tree.mods);
duke@1 77 scan(tree.typarams);
duke@1 78 scan(tree.extending);
duke@1 79 scan(tree.implementing);
duke@1 80 scan(tree.defs);
duke@1 81 }
duke@1 82
duke@1 83 public void visitMethodDef(JCMethodDecl tree) {
duke@1 84 scan(tree.mods);
duke@1 85 scan(tree.restype);
duke@1 86 scan(tree.typarams);
jjg@1521 87 scan(tree.recvparam);
duke@1 88 scan(tree.params);
duke@1 89 scan(tree.thrown);
jjg@181 90 scan(tree.defaultValue);
duke@1 91 scan(tree.body);
duke@1 92 }
duke@1 93
duke@1 94 public void visitVarDef(JCVariableDecl tree) {
duke@1 95 scan(tree.mods);
duke@1 96 scan(tree.vartype);
jjg@1755 97 scan(tree.nameexpr);
duke@1 98 scan(tree.init);
duke@1 99 }
duke@1 100
duke@1 101 public void visitSkip(JCSkip tree) {
duke@1 102 }
duke@1 103
duke@1 104 public void visitBlock(JCBlock tree) {
duke@1 105 scan(tree.stats);
duke@1 106 }
duke@1 107
duke@1 108 public void visitDoLoop(JCDoWhileLoop tree) {
duke@1 109 scan(tree.body);
duke@1 110 scan(tree.cond);
duke@1 111 }
duke@1 112
duke@1 113 public void visitWhileLoop(JCWhileLoop tree) {
duke@1 114 scan(tree.cond);
duke@1 115 scan(tree.body);
duke@1 116 }
duke@1 117
duke@1 118 public void visitForLoop(JCForLoop tree) {
duke@1 119 scan(tree.init);
duke@1 120 scan(tree.cond);
duke@1 121 scan(tree.step);
duke@1 122 scan(tree.body);
duke@1 123 }
duke@1 124
duke@1 125 public void visitForeachLoop(JCEnhancedForLoop tree) {
duke@1 126 scan(tree.var);
duke@1 127 scan(tree.expr);
duke@1 128 scan(tree.body);
duke@1 129 }
duke@1 130
duke@1 131 public void visitLabelled(JCLabeledStatement tree) {
duke@1 132 scan(tree.body);
duke@1 133 }
duke@1 134
duke@1 135 public void visitSwitch(JCSwitch tree) {
duke@1 136 scan(tree.selector);
duke@1 137 scan(tree.cases);
duke@1 138 }
duke@1 139
duke@1 140 public void visitCase(JCCase tree) {
duke@1 141 scan(tree.pat);
duke@1 142 scan(tree.stats);
duke@1 143 }
duke@1 144
duke@1 145 public void visitSynchronized(JCSynchronized tree) {
duke@1 146 scan(tree.lock);
duke@1 147 scan(tree.body);
duke@1 148 }
duke@1 149
duke@1 150 public void visitTry(JCTry tree) {
darcy@609 151 scan(tree.resources);
duke@1 152 scan(tree.body);
duke@1 153 scan(tree.catchers);
duke@1 154 scan(tree.finalizer);
duke@1 155 }
duke@1 156
duke@1 157 public void visitCatch(JCCatch tree) {
duke@1 158 scan(tree.param);
duke@1 159 scan(tree.body);
duke@1 160 }
duke@1 161
duke@1 162 public void visitConditional(JCConditional tree) {
duke@1 163 scan(tree.cond);
duke@1 164 scan(tree.truepart);
duke@1 165 scan(tree.falsepart);
duke@1 166 }
duke@1 167
duke@1 168 public void visitIf(JCIf tree) {
duke@1 169 scan(tree.cond);
duke@1 170 scan(tree.thenpart);
duke@1 171 scan(tree.elsepart);
duke@1 172 }
duke@1 173
duke@1 174 public void visitExec(JCExpressionStatement tree) {
duke@1 175 scan(tree.expr);
duke@1 176 }
duke@1 177
duke@1 178 public void visitBreak(JCBreak tree) {
duke@1 179 }
duke@1 180
duke@1 181 public void visitContinue(JCContinue tree) {
duke@1 182 }
duke@1 183
duke@1 184 public void visitReturn(JCReturn tree) {
duke@1 185 scan(tree.expr);
duke@1 186 }
duke@1 187
duke@1 188 public void visitThrow(JCThrow tree) {
duke@1 189 scan(tree.expr);
duke@1 190 }
duke@1 191
duke@1 192 public void visitAssert(JCAssert tree) {
duke@1 193 scan(tree.cond);
duke@1 194 scan(tree.detail);
duke@1 195 }
duke@1 196
duke@1 197 public void visitApply(JCMethodInvocation tree) {
jjg@489 198 scan(tree.typeargs);
duke@1 199 scan(tree.meth);
duke@1 200 scan(tree.args);
duke@1 201 }
duke@1 202
duke@1 203 public void visitNewClass(JCNewClass tree) {
duke@1 204 scan(tree.encl);
jjg@1521 205 scan(tree.typeargs);
duke@1 206 scan(tree.clazz);
duke@1 207 scan(tree.args);
duke@1 208 scan(tree.def);
duke@1 209 }
duke@1 210
duke@1 211 public void visitNewArray(JCNewArray tree) {
jjg@1521 212 scan(tree.annotations);
duke@1 213 scan(tree.elemtype);
duke@1 214 scan(tree.dims);
jjg@1521 215 for (List<JCAnnotation> annos : tree.dimAnnotations)
jjg@1521 216 scan(annos);
duke@1 217 scan(tree.elems);
duke@1 218 }
duke@1 219
mcimadamore@1142 220 public void visitLambda(JCLambda tree) {
mcimadamore@1142 221 scan(tree.body);
mcimadamore@1142 222 scan(tree.params);
mcimadamore@1142 223 }
mcimadamore@1142 224
duke@1 225 public void visitParens(JCParens tree) {
duke@1 226 scan(tree.expr);
duke@1 227 }
duke@1 228
duke@1 229 public void visitAssign(JCAssign tree) {
duke@1 230 scan(tree.lhs);
duke@1 231 scan(tree.rhs);
duke@1 232 }
duke@1 233
duke@1 234 public void visitAssignop(JCAssignOp tree) {
duke@1 235 scan(tree.lhs);
duke@1 236 scan(tree.rhs);
duke@1 237 }
duke@1 238
duke@1 239 public void visitUnary(JCUnary tree) {
duke@1 240 scan(tree.arg);
duke@1 241 }
duke@1 242
duke@1 243 public void visitBinary(JCBinary tree) {
duke@1 244 scan(tree.lhs);
duke@1 245 scan(tree.rhs);
duke@1 246 }
duke@1 247
duke@1 248 public void visitTypeCast(JCTypeCast tree) {
duke@1 249 scan(tree.clazz);
duke@1 250 scan(tree.expr);
duke@1 251 }
duke@1 252
duke@1 253 public void visitTypeTest(JCInstanceOf tree) {
duke@1 254 scan(tree.expr);
duke@1 255 scan(tree.clazz);
duke@1 256 }
duke@1 257
duke@1 258 public void visitIndexed(JCArrayAccess tree) {
duke@1 259 scan(tree.indexed);
duke@1 260 scan(tree.index);
duke@1 261 }
duke@1 262
duke@1 263 public void visitSelect(JCFieldAccess tree) {
duke@1 264 scan(tree.selected);
duke@1 265 }
duke@1 266
mcimadamore@1143 267 public void visitReference(JCMemberReference tree) {
mcimadamore@1143 268 scan(tree.expr);
mcimadamore@1143 269 scan(tree.typeargs);
mcimadamore@1143 270 }
mcimadamore@1143 271
duke@1 272 public void visitIdent(JCIdent tree) {
duke@1 273 }
duke@1 274
duke@1 275 public void visitLiteral(JCLiteral tree) {
duke@1 276 }
duke@1 277
duke@1 278 public void visitTypeIdent(JCPrimitiveTypeTree tree) {
duke@1 279 }
duke@1 280
duke@1 281 public void visitTypeArray(JCArrayTypeTree tree) {
duke@1 282 scan(tree.elemtype);
duke@1 283 }
duke@1 284
duke@1 285 public void visitTypeApply(JCTypeApply tree) {
duke@1 286 scan(tree.clazz);
duke@1 287 scan(tree.arguments);
duke@1 288 }
duke@1 289
darcy@969 290 public void visitTypeUnion(JCTypeUnion tree) {
jjg@724 291 scan(tree.alternatives);
mcimadamore@550 292 }
mcimadamore@550 293
mcimadamore@1436 294 public void visitTypeIntersection(JCTypeIntersection tree) {
mcimadamore@1436 295 scan(tree.bounds);
mcimadamore@1436 296 }
mcimadamore@1436 297
duke@1 298 public void visitTypeParameter(JCTypeParameter tree) {
jjg@1521 299 scan(tree.annotations);
duke@1 300 scan(tree.bounds);
duke@1 301 }
duke@1 302
duke@1 303 @Override
duke@1 304 public void visitWildcard(JCWildcard tree) {
duke@1 305 scan(tree.kind);
duke@1 306 if (tree.inner != null)
duke@1 307 scan(tree.inner);
duke@1 308 }
duke@1 309
duke@1 310 @Override
duke@1 311 public void visitTypeBoundKind(TypeBoundKind that) {
duke@1 312 }
duke@1 313
duke@1 314 public void visitModifiers(JCModifiers tree) {
duke@1 315 scan(tree.annotations);
duke@1 316 }
duke@1 317
duke@1 318 public void visitAnnotation(JCAnnotation tree) {
duke@1 319 scan(tree.annotationType);
duke@1 320 scan(tree.args);
duke@1 321 }
duke@1 322
jjg@1521 323 public void visitAnnotatedType(JCAnnotatedType tree) {
jjg@1521 324 scan(tree.annotations);
jjg@1521 325 scan(tree.underlyingType);
jjg@1521 326 }
jjg@1521 327
duke@1 328 public void visitErroneous(JCErroneous tree) {
duke@1 329 }
duke@1 330
duke@1 331 public void visitLetExpr(LetExpr tree) {
duke@1 332 scan(tree.defs);
duke@1 333 scan(tree.expr);
duke@1 334 }
duke@1 335
duke@1 336 public void visitTree(JCTree tree) {
jjg@816 337 Assert.error();
duke@1 338 }
duke@1 339 }

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