/*

 * Copyright 2004-2005 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.apt.mirror.util;

import java.io.File;

import javax.tools.JavaFileObject;

import com.sun.mirror.util.SourcePosition;

import com.sun.tools.javac.util.Position;

/**

 * Implementation of SourcePosition

 */

public class SourcePositionImpl implements SourcePosition {

    private JavaFileObject sourcefile;

    private int pos;            // file position, in javac's internal format

    private Position.LineMap linemap;

    public SourcePositionImpl(JavaFileObject sourcefile, int pos, Position.LineMap linemap) {

        this.sourcefile = sourcefile;

        this.pos = pos;

        this.linemap = linemap;

        assert sourcefile != null;

        assert linemap != null;

    }

    public int getJavacPosition() {

        return pos;

    }

    public JavaFileObject getSource() {

        return sourcefile;

    }

    /**

     * Returns a string representation of this position in the

     * form "sourcefile:line", or "sourcefile" if no line number is available.

     */

    public String toString() {

        int ln = line();

        return (ln == Position.NOPOS)

                ? sourcefile.toString()

                : sourcefile + ":" + ln;

    }

    /**

     * {@inheritDoc}

     */

    public File file() {

        return new File(sourcefile.toString());

    }

    /**

     * {@inheritDoc}

     */

    public int line() {

        return linemap.getLineNumber(pos);

    }

    /**

     * {@inheritDoc}

     */

    public int column() {

        return linemap.getColumnNumber(pos);

    }

}