1   /*
    2    * Copyright (c) 2005, Oracle and/or its affiliates. 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.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package com.sun.tools.javac.model;
   27   
   28   import javax.tools.JavaFileObject;
   29   import com.sun.tools.javac.util.Position;
   30   
   31   /**
   32    * Implementation of model API SourcePosition based on javac internal state.
   33    *
   34    * <p><b>This is NOT part of any supported API.
   35    * If you write code that depends on this, you do so at your own
   36    * risk.  This code and its internal interfaces are subject to change
   37    * or deletion without notice.</b></p>
   38    */
   39   class JavacSourcePosition {
   40   
   41       final JavaFileObject sourcefile;
   42       final int pos;
   43       final Position.LineMap lineMap;
   44   
   45       JavacSourcePosition(JavaFileObject sourcefile,
   46                           int pos,
   47                           Position.LineMap lineMap) {
   48           this.sourcefile = sourcefile;
   49           this.pos = pos;
   50           this.lineMap = (pos != Position.NOPOS) ? lineMap : null;
   51       }
   52   
   53       public JavaFileObject getFile() {
   54           return sourcefile;
   55       }
   56   
   57       public int getOffset() {
   58           return pos;     // makes use of fact that Position.NOPOS == -1
   59       }
   60   
   61       public int getLine() {
   62           return (lineMap != null) ? lineMap.getLineNumber(pos) : -1;
   63       }
   64   
   65       public int getColumn() {
   66           return (lineMap != null) ? lineMap.getColumnNumber(pos) : -1;
   67       }
   68   
   69       public String toString() {
   70           int line = getLine();
   71           return (line > 0)
   72                 ? sourcefile + ":" + line
   73                 : sourcefile.toString();
   74       }
   75   }