mcs/ilasm/codegen/DebuggingInfo.cs

   1 //
   2 // Mono.ILASM.DebuggingInfo.cs
   3 //
   4 // Author(s):
   5 //  Martin Baulig (martin@ximian.com)
   6 //
   7 // Copyright (C) 2004 Novell, Inc.
   8 //
   9
  10 using PEAPI;
  11 using System;
  12 using System.IO;
  13 using System.Collections;
  14 using Mono.CompilerServices.SymbolWriter;
  15
  16 namespace Mono.ILASM {
  17
  18         public class SymbolWriter : MonoSymbolWriter
  19         {
  20                 ArrayList sources;
  21                 Mono.ILASM.SourceMethod current_method;
  22                 SourceFile current_source;
  23
  24                 public SymbolWriter (string filename)
  25                         : base (filename)
  26                 {
  27                         sources = new ArrayList ();
  28                 }
  29
  30                 public Mono.ILASM.SourceMethod BeginMethod (MethodDef method, Location location)
  31                 {
  32                         current_method = new Mono.ILASM.SourceMethod (method, location);
  33                         current_source.AddMethod (current_method);
  34                         return current_method;
  35                 }
  36
  37                 public void EndMethod (Location location)
  38                 {
  39                         current_method.EndLine = location.line;
  40                         current_method = null;
  41                 }
  42
  43                 public void BeginSourceFile (string filename)
  44                 {
  45                         current_source = new SourceFile (file, filename);
  46                         sources.Add (current_source);
  47                 }
  48
  49                 public void EndSourceFile ()
  50                 {
  51                         current_source = null;
  52                 }
  53
  54                 public void Write (Guid guid)
  55                 {
  56                         foreach (SourceFile source in sources)
  57                                 source.Write ();
  58
  59                         WriteSymbolFile (guid);
  60                 }
  61         }
  62
  63         public class SourceFile : SourceFileEntry
  64         {
  65                 private ArrayList methods = new ArrayList ();
  66
  67                 public SourceFile (MonoSymbolFile file, string filename)
  68                         : base (file, filename)
  69                 { }
  70
  71                 public void AddMethod (SourceMethod method)
  72                 {
  73                         methods.Add (method);
  74                 }
  75
  76                 public void Write ()
  77                 {
  78                         foreach (SourceMethod method in methods)
  79                                 method.Write (this);
  80                 }
  81         }
  82
  83         public class SourceMethod
  84         {
  85                 MethodDef method;
  86                 ArrayList lines;
  87                 public int StartLine, EndLine;
  88
  89                 public SourceMethod (MethodDef method, Location start)
  90                 {
  91                         this.method = method;
  92                         this.StartLine = start.line;
  93
  94                         lines = new ArrayList ();
  95                         MarkLocation (start.line, 0);
  96                 }
  97
  98                 public void MarkLocation (int line, uint offset)
  99                 {
 100                         lines.Add (new LineNumberEntry (line, (int) offset));
 101                 }
 102
 103                 public void Write (SourceFile file)
 104                 {
 105                         PEAPI.MethodDef pemethod = method.PeapiMethodDef;
 106
 107                         LineNumberEntry[] lne = new LineNumberEntry [lines.Count];
 108                         lines.CopyTo (lne);
 109
 110                         uint token = ((uint) PEAPI.MDTable.Method << 24) | pemethod.Row;
 111
 112                         file.DefineMethod (
 113                                 method.Name, (int) token, null, lne, null,
 114                                 StartLine, EndLine, 0);
 115                 }
 116         }
 117 }