001    /*
002     * Copyright 2004-2005 Sun Microsystems, Inc.  All Rights Reserved.
003     * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004     *
005     * This code is free software; you can redistribute it and/or modify it
006     * under the terms of the GNU General Public License version 2 only, as
007     * published by the Free Software Foundation.  Sun designates this
008     * particular file as subject to the "Classpath" exception as provided
009     * by Sun in the LICENSE file that accompanied this code.
010     *
011     * This code is distributed in the hope that it will be useful, but WITHOUT
012     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013     * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014     * version 2 for more details (a copy is included in the LICENSE file that
015     * accompanied this code).
016     *
017     * You should have received a copy of the GNU General Public License version
018     * 2 along with this work; if not, write to the Free Software Foundation,
019     * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020     *
021     * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022     * CA 95054 USA or visit www.sun.com if you need additional information or
023     * have any questions.
024     */
025    
026    package com.sun.tools.apt.mirror.util;
027    
028    
029    import java.io.File;
030    import javax.tools.JavaFileObject;
031    
032    import com.sun.mirror.util.SourcePosition;
033    import com.sun.tools.javac.util.Position;
034    
035    
036    /**
037     * Implementation of SourcePosition
038     */
039    
040    public class SourcePositionImpl implements SourcePosition {
041    
042        private JavaFileObject sourcefile;
043        private int pos;            // file position, in javac's internal format
044        private Position.LineMap linemap;
045    
046    
047        public SourcePositionImpl(JavaFileObject sourcefile, int pos, Position.LineMap linemap) {
048            this.sourcefile = sourcefile;
049            this.pos = pos;
050            this.linemap = linemap;
051            assert sourcefile != null;
052            assert linemap != null;
053        }
054    
055        public int getJavacPosition() {
056            return pos;
057        }
058    
059        public JavaFileObject getSource() {
060            return sourcefile;
061        }
062    
063        /**
064         * Returns a string representation of this position in the
065         * form "sourcefile:line", or "sourcefile" if no line number is available.
066         */
067        public String toString() {
068            int ln = line();
069            return (ln == Position.NOPOS)
070                    ? sourcefile.toString()
071                    : sourcefile + ":" + ln;
072        }
073    
074        /**
075         * {@inheritDoc}
076         */
077        public File file() {
078            return new File(sourcefile.toString());
079        }
080    
081        /**
082         * {@inheritDoc}
083         */
084        public int line() {
085            return linemap.getLineNumber(pos);
086        }
087    
088        /**
089         * {@inheritDoc}
090         */
091        public int column() {
092            return linemap.getColumnNumber(pos);
093        }
094    }