| /* |
| * Copyright 2005-2008 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package com.sun.tools.javac.parser; |
| |
| import java.util.Map; |
| import java.util.HashMap; |
| import com.sun.tools.javac.tree.JCTree; |
| import com.sun.tools.javac.tree.TreeInfo; |
| |
| import static com.sun.tools.javac.tree.JCTree.*; |
| |
| /** |
| * This class is similar to Parser except that it stores ending |
| * positions for the tree nodes. |
| * |
| * <p><b>This is NOT part of any API supported by Sun Microsystems. |
| * If you write code that depends on this, you do so at your own risk. |
| * This code and its internal interfaces are subject to change or |
| * deletion without notice.</b></p> |
| */ |
| public class EndPosParser extends JavacParser { |
| |
| public EndPosParser(ParserFactory fac, Lexer S, boolean keepDocComments, boolean keepLineMap) { |
| super(fac, S, keepDocComments, keepLineMap); |
| this.S = S; |
| endPositions = new HashMap<JCTree,Integer>(); |
| } |
| |
| private Lexer S; |
| |
| /** A hashtable to store ending positions |
| * of source ranges indexed by the tree nodes. |
| * Defined only if option flag genEndPos is set. |
| */ |
| Map<JCTree, Integer> endPositions; |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected void storeEnd(JCTree tree, int endpos) { |
| int errorEndPos = getErrorEndPos(); |
| endPositions.put(tree, errorEndPos > endpos ? errorEndPos : endpos); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected <T extends JCTree> T to(T t) { |
| storeEnd(t, S.endPos()); |
| return t; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected <T extends JCTree> T toP(T t) { |
| storeEnd(t, S.prevEndPos()); |
| return t; |
| } |
| |
| @Override |
| public JCCompilationUnit parseCompilationUnit() { |
| JCCompilationUnit t = super.parseCompilationUnit(); |
| t.endPositions = endPositions; |
| return t; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| JCExpression parExpression() { |
| int pos = S.pos(); |
| JCExpression t = super.parExpression(); |
| return toP(F.at(pos).Parens(t)); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public int getEndPos(JCTree tree) { |
| return TreeInfo.getEndPos(tree, endPositions); |
| } |
| |
| } |