author | jjg |
Mon, 27 Sep 2010 14:20:39 -0700 | |
changeset 6716 | 71df48777dd1 |
parent 5847 | 1908176fd6e3 |
child 10815 | a719aa5f1631 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005, 2008, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.tools.javac.parser; |
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import java.util.Map; |
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import java.util.HashMap; |
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import com.sun.tools.javac.tree.JCTree; |
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import com.sun.tools.javac.tree.TreeInfo; |
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import static com.sun.tools.javac.tree.JCTree.*; |
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/** |
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* This class is similar to Parser except that it stores ending |
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* positions for the tree nodes. |
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* |
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* <p><b>This is NOT part of any supported API. |
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* If you write code that depends on this, you do so at your own risk. |
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* This code and its internal interfaces are subject to change or |
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* deletion without notice.</b></p> |
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*/ |
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public class EndPosParser extends JavacParser { |
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public EndPosParser(ParserFactory fac, Lexer S, boolean keepDocComments, boolean keepLineMap) { |
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super(fac, S, keepDocComments, keepLineMap); |
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this.S = S; |
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endPositions = new HashMap<JCTree,Integer>(); |
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} |
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private Lexer S; |
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/** A hashtable to store ending positions |
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* of source ranges indexed by the tree nodes. |
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* Defined only if option flag genEndPos is set. |
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*/ |
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Map<JCTree, Integer> endPositions; |
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/** {@inheritDoc} */ |
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@Override |
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protected void storeEnd(JCTree tree, int endpos) { |
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int errorEndPos = getErrorEndPos(); |
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endPositions.put(tree, errorEndPos > endpos ? errorEndPos : endpos); |
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} |
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/** {@inheritDoc} */ |
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@Override |
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protected <T extends JCTree> T to(T t) { |
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storeEnd(t, S.endPos()); |
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return t; |
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} |
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/** {@inheritDoc} */ |
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@Override |
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protected <T extends JCTree> T toP(T t) { |
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storeEnd(t, S.prevEndPos()); |
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return t; |
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} |
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@Override |
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public JCCompilationUnit parseCompilationUnit() { |
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JCCompilationUnit t = super.parseCompilationUnit(); |
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t.endPositions = endPositions; |
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return t; |
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} |
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/** {@inheritDoc} */ |
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@Override |
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JCExpression parExpression() { |
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int pos = S.pos(); |
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JCExpression t = super.parExpression(); |
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return toP(F.at(pos).Parens(t)); |
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} |
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/** {@inheritDoc} */ |
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@Override |
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public int getEndPos(JCTree tree) { |
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return TreeInfo.getEndPos(tree, endPositions); |
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} |
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} |