mcs/mcs/genericparser.cs

   1 //
   2 // GenericParser.cs: The Base Parser for the Mono compilers
   3 //
   4 // Author: A Rafael D Teixeira (rafaelteixeirabr@hotmail.com)
   5 //
   6 // Licensed under the terms of the GNU GPL
   7 //
   8 // Copyright (C) 2001 Ximian, Inc.
   9 //
  10 using System;
  11 using System.Text;
  12
  13 namespace Mono.Languages
  14 {
  15         using System.Collections;
  16
  17         /// <summary>
  18         /// Base class to support multiple Jay generated parsers
  19         /// </summary>
  20         public abstract class GenericParser
  21         {
  22                 static protected int global_errors;
  23
  24                 // Name of the file we are parsing
  25                 public string name;
  26
  27                 // Input stream to parse from.
  28                 public System.IO.Stream input;
  29
  30                 public abstract int parse ();
  31
  32                 public virtual string[] extensions()
  33                 {
  34                         string [] list = { ".cs" };
  35                         return list;
  36                 }
  37
  38                 /// <summary>
  39                 /// Emits error messages and increments a global count of them
  40                 /// </summary>
  41                 /// <param name="code"></param>
  42                 /// <param name="desc"></param>
  43                 static public void error (int code, string desc)
  44                 {
  45                         Console.WriteLine ("Error "+code+": "+ desc);
  46                         global_errors++;
  47                 }
  48
  49                 // Emits error messages with location info.
  50                 // FIXME : Ideally, all error reporting should happen
  51                 // with Report.Error but how do you get at that non-static
  52                 // method everywhere you need it ?
  53                 static public void error (int code, Mono.CSharp.Location l, string text)
  54                 {
  55                         Console.WriteLine (l.Name + "(" + l.Row + "," +
  56                                            "): Error CS" + code + ": " + text);
  57                         global_errors++;
  58                 }
  59
  60                 public GenericParser()
  61                 {
  62                         //
  63                         // DO NOTHING: Derived classes should do their iniatilization here duties
  64                         //
  65                 }
  66
  67                 protected bool yacc_verbose_flag = false;
  68
  69                 public bool yacc_verbose
  70                 {
  71                         set
  72                         {
  73                                 yacc_verbose_flag = value;
  74                         }
  75
  76                         get
  77                         {
  78                                 return yacc_verbose_flag;
  79                         }
  80                 }
  81         }
  82 }
  83
  84
  85