jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javadoc/SourcePositionImpl.java@829dea15ff99

     1 /*

     2  * Copyright 2001-2005 Sun Microsystems, Inc.  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.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    26 package com.sun.tools.javadoc;

    28 import com.sun.javadoc.SourcePosition;

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

    31 import java.io.File;

    33 /**

    34  * A source position: filename, line number, and column number.

    35  *

    36  * @since J2SE1.4

    37  * @author Neal M Gafter

    38  * @author Michael Van De Vanter (position representation changed to char offsets)

    39  */

    40 class SourcePositionImpl implements SourcePosition {

    41     String filename;

    42     int position;

    43     Position.LineMap lineMap;

    45     /** The source file. Returns null if no file information is

    46      *  available. */

    47     public File file() {

    48         return (filename == null) ? null : new File(filename);

    49     }

    51     /** The line in the source file. The first line is numbered 1;

    52      *  0 means no line number information is available. */

    53     public int line() {

    54         if (lineMap == null) {

    55             return 0;

    56         } else {

    57             return lineMap.getLineNumber(position);

    58         }

    59     }

    61     /** The column in the source file. The first column is

    62      *  numbered 1; 0 means no column information is available.

    63      *  Columns count characters in the input stream; a tab

    64      *  advances the column number to the next 8-column tab stop.

    65      */

    66     public int column() {

    67         if (lineMap == null) {

    68             return 0;

    69         }else {

    70             return lineMap.getColumnNumber(position);

    71         }

    72     }

    74     private SourcePositionImpl(String file, int position,

    75                                Position.LineMap lineMap) {

    76         super();

    77         this.filename = file;

    78         this.position = position;

    79         this.lineMap = lineMap;

    80     }

    82     public static SourcePosition make(String file, int pos,

    83                                       Position.LineMap lineMap) {

    84         if (file == null) return null;

    85         return new SourcePositionImpl(file, pos, lineMap);

    86     }

    88     public String toString() {

    89         if (position == Position.NOPOS)

    90             return filename;

    91         else

    92             return filename + ":" + line();

    93     }

    94 }

Mercurial > jdk8-mips64-public > langtools / file revision