Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/parser/EndPosParser.java
src/share/classes/com/sun/tools/javac/parser/EndPosParser.java
- changeset 1138
- 7375d4979bd3
- parent 1113
- d346ab55031b
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| 1137:c1238fcc9515 | 1138:7375d4979bd3 |
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| 1 /* | |
| 2 * Copyright (c) 2005, 2008, 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.parser; | |
| 27 | |
| 28 import java.util.Map; | |
| 29 import java.util.HashMap; | |
| 30 import com.sun.tools.javac.tree.JCTree; | |
| 31 import com.sun.tools.javac.tree.TreeInfo; | |
| 32 | |
| 33 import static com.sun.tools.javac.tree.JCTree.*; | |
| 34 | |
| 35 /** | |
| 36 * This class is similar to Parser except that it stores ending | |
| 37 * positions for the tree nodes. | |
| 38 * | |
| 39 * <p><b>This is NOT part of any supported API. | |
| 40 * If you write code that depends on this, you do so at your own risk. | |
| 41 * This code and its internal interfaces are subject to change or | |
| 42 * deletion without notice.</b></p> | |
| 43 */ | |
| 44 public class EndPosParser extends JavacParser { | |
| 45 | |
| 46 public EndPosParser(ParserFactory fac, Lexer S, boolean keepDocComments, boolean keepLineMap) { | |
| 47 super(fac, S, keepDocComments, keepLineMap); | |
| 48 this.S = S; | |
| 49 endPositions = new HashMap<JCTree,Integer>(); | |
| 50 } | |
| 51 | |
| 52 private Lexer S; | |
| 53 | |
| 54 /** A hashtable to store ending positions | |
| 55 * of source ranges indexed by the tree nodes. | |
| 56 * Defined only if option flag genEndPos is set. | |
| 57 */ | |
| 58 Map<JCTree, Integer> endPositions; | |
| 59 | |
| 60 /** {@inheritDoc} */ | |
| 61 @Override | |
| 62 protected void storeEnd(JCTree tree, int endpos) { | |
| 63 int errorEndPos = getErrorEndPos(); | |
| 64 endPositions.put(tree, errorEndPos > endpos ? errorEndPos : endpos); | |
| 65 } | |
| 66 | |
| 67 /** {@inheritDoc} */ | |
| 68 @Override | |
| 69 protected <T extends JCTree> T to(T t) { | |
| 70 storeEnd(t, token.endPos); | |
| 71 return t; | |
| 72 } | |
| 73 | |
| 74 /** {@inheritDoc} */ | |
| 75 @Override | |
| 76 protected <T extends JCTree> T toP(T t) { | |
| 77 storeEnd(t, S.prevToken().endPos); | |
| 78 return t; | |
| 79 } | |
| 80 | |
| 81 @Override | |
| 82 public JCCompilationUnit parseCompilationUnit() { | |
| 83 JCCompilationUnit t = super.parseCompilationUnit(); | |
| 84 t.endPositions = endPositions; | |
| 85 return t; | |
| 86 } | |
| 87 | |
| 88 /** {@inheritDoc} */ | |
| 89 @Override | |
| 90 JCExpression parExpression() { | |
| 91 int pos = token.pos; | |
| 92 JCExpression t = super.parExpression(); | |
| 93 return toP(F.at(pos).Parens(t)); | |
| 94 } | |
| 95 | |
| 96 /** {@inheritDoc} */ | |
| 97 @Override | |
| 98 public int getEndPos(JCTree tree) { | |
| 99 return TreeInfo.getEndPos(tree, endPositions); | |
| 100 } | |
| 101 | |
| 102 } |
