mcs/ilasm/scanner/Location.cs

   1 // Location.cs
   2 // Author: Sergey Chaban (serge@wildwestsoftware.com)
   3
   4 using System;
   5
   6 namespace Mono.ILASM {
   7
   8
   9         /// <summary>
  10         /// </summary>
  11         public class Location : ICloneable {
  12                 internal int line;
  13                 internal int column;
  14
  15
  16                 /// <summary>
  17                 /// </summary>
  18                 public static readonly Location Unknown = new Location (-1, -1);
  19
  20                 /// <summary>
  21                 /// </summary>
  22                 public Location () {
  23                         line = 1;
  24                         column = 1;
  25                 }
  26
  27                 /// <summary>
  28                 /// </summary>
  29                 /// <param name="line"></param>
  30                 /// <param name="column"></param>
  31                 public Location (int line, int column)
  32                 {
  33                         this.line = line;
  34                         this.column = column;
  35                 }
  36
  37
  38                 /// <summary>
  39                 /// </summary>
  40                 /// <param name="that"></param>
  41                 public Location (Location that)
  42                 {
  43                         this.line = that.line;
  44                         this.column = that.column;
  45                 }
  46
  47
  48
  49
  50                 /// <summary>
  51                 /// </summary>
  52                 public void NewLine ()
  53                 {
  54                         ++line;
  55                         column = 1;
  56                 }
  57
  58
  59                 /// <summary>
  60                 /// </summary>
  61                 public void PreviousLine ()
  62                 {
  63                         --line;
  64                         column = 1;
  65                 }
  66
  67                 /// <summary>
  68                 /// </summary>
  69                 public void NextColumn ()
  70                 {
  71                         ++column;
  72                 }
  73
  74                 /// <summary>
  75                 /// </summary>
  76                 public void PreviousColumn ()
  77                 {
  78                         --column;
  79                 }
  80
  81                 /// <summary>
  82                 /// </summary>
  83                 /// <param name="other"></param>
  84                 public void CopyFrom (Location other)
  85                 {
  86                         this.line = other.line;
  87                         this.column = other.column;
  88                 }
  89
  90
  91                 /// <summary>
  92                 /// </summary>
  93                 /// <returns></returns>
  94                 public virtual object Clone () {
  95                         return new Location (this);
  96                 }
  97
  98                 public override string ToString ()
  99                 {
 100                         return "line (" + line + ") column (" + column + ")";
 101                 }
 102         }
 103 }