mcs/mcs/symbolwriter.cs

   1 //
   2 // symbolwriter.cs: The symbol writer
   3 //
   4 // Author:
   5 //   Martin Baulig (martin@ximian.com)
   6 //
   7 // (C) 2003 Ximian, Inc.
   8 //
   9
  10 using System;
  11 using System.Collections;
  12 using System.Reflection;
  13 using System.Reflection.Emit;
  14
  15 using Mono.CompilerServices.SymbolWriter;
  16
  17 namespace Mono.CSharp {
  18         public static class SymbolWriter
  19         {
  20                 public static bool HasSymbolWriter {
  21                         get { return symwriter != null; }
  22                 }
  23
  24                 private static SymbolWriterImpl symwriter;
  25
  26                 class SymbolWriterImpl : MonoSymbolWriter {
  27                         delegate int GetILOffsetFunc (ILGenerator ig);
  28                         delegate Guid GetGuidFunc (ModuleBuilder mb);
  29
  30                         GetILOffsetFunc get_il_offset_func;
  31                         GetGuidFunc get_guid_func;
  32
  33                         ModuleBuilder module_builder;
  34
  35                         public SymbolWriterImpl (ModuleBuilder module_builder, string filename)
  36                                 : base (filename)
  37                         {
  38                                 this.module_builder = module_builder;
  39                         }
  40
  41                         public int GetILOffset (ILGenerator ig)
  42                         {
  43                                 return get_il_offset_func (ig);
  44                         }
  45
  46                         public void WriteSymbolFile ()
  47                         {
  48                                 Guid guid = get_guid_func (module_builder);
  49                                 WriteSymbolFile (guid);
  50                         }
  51
  52                         public bool Initialize ()
  53                         {
  54                                 MethodInfo mi = typeof (ILGenerator).GetMethod (
  55                                         "Mono_GetCurrentOffset",
  56                                         BindingFlags.Static | BindingFlags.NonPublic);
  57                                 if (mi == null)
  58                                         return false;
  59
  60                                 get_il_offset_func = (GetILOffsetFunc) System.Delegate.CreateDelegate (
  61                                         typeof (GetILOffsetFunc), mi);
  62
  63                                 mi = typeof (ModuleBuilder).GetMethod (
  64                                         "Mono_GetGuid",
  65                                         BindingFlags.Static | BindingFlags.NonPublic);
  66                                 if (mi == null)
  67                                         return false;
  68
  69                                 get_guid_func = (GetGuidFunc) System.Delegate.CreateDelegate (
  70                                         typeof (GetGuidFunc), mi);
  71
  72                                 Location.DefineSymbolDocuments (this);
  73
  74                                 return true;
  75                         }
  76                 }
  77
  78                 public static void DefineLocalVariable (string name, LocalBuilder builder)
  79                 {
  80                         if (symwriter != null) {
  81                                 int index = MonoDebuggerSupport.GetLocalIndex (builder);
  82                                 symwriter.DefineLocalVariable (index, name);
  83                         }
  84                 }
  85
  86                 public static void OpenMethod (ISourceFile file, ISourceMethod method,
  87                                                int start_row, int start_column,
  88                                                int end_row, int end_column)
  89                 {
  90                         if (symwriter != null)
  91                                 symwriter.OpenMethod (file, method, start_row, start_column,
  92                                                       end_row, end_column);
  93                 }
  94
  95                 public static void CloseMethod ()
  96                 {
  97                         if (symwriter != null)
  98                                 symwriter.CloseMethod ();
  99                 }
 100
 101                 public static int OpenScope (ILGenerator ig)
 102                 {
 103                         if (symwriter != null) {
 104                                 int offset = symwriter.GetILOffset (ig);
 105                                 return symwriter.OpenScope (offset);
 106                         } else {
 107                                 return -1;
 108                         }
 109                 }
 110
 111                 public static void CloseScope (ILGenerator ig)
 112                 {
 113                         if (symwriter != null) {
 114                                 int offset = symwriter.GetILOffset (ig);
 115                                 symwriter.CloseScope (offset);
 116                         }
 117                 }
 118
 119                 public static int DefineNamespace (string name, SourceFileEntry source,
 120                                                    string[] using_clauses, int parent)
 121                 {
 122                         if (symwriter != null)
 123                                 return symwriter.DefineNamespace (name, source, using_clauses, parent);
 124                         else
 125                                 return -1;
 126                 }
 127
 128 #region Terrania additions
 129                 public static void DefineAnonymousScope (int id)
 130                 {
 131                         if (symwriter != null)
 132                                 symwriter.DefineAnonymousScope (id);
 133                 }
 134
 135                 public static void DefineScopeVariable (int scope, LocalBuilder builder)
 136                 {
 137                         if (symwriter != null) {
 138                                 int index = MonoDebuggerSupport.GetLocalIndex (builder);
 139                                 symwriter.DefineScopeVariable (scope, index);
 140                         }
 141                 }
 142
 143                 public static void DefineScopeVariable (int scope)
 144                 {
 145                         if (symwriter != null)
 146                                 symwriter.DefineScopeVariable (scope, -1);
 147                 }
 148
 149                 public static void DefineCapturedLocal (int scope_id, string name,
 150                                                         string captured_name)
 151                 {
 152                         if (symwriter != null)
 153                                 symwriter.DefineCapturedLocal (scope_id, name, captured_name);
 154                 }
 155
 156                 public static void DefineCapturedParameter (int scope_id, string name,
 157                                                             string captured_name)
 158                 {
 159                         if (symwriter != null)
 160                                 symwriter.DefineCapturedParameter (scope_id, name, captured_name);
 161                 }
 162
 163                 public static void DefineCapturedThis (int scope_id, string captured_name)
 164                 {
 165                         if (symwriter != null)
 166                                 symwriter.DefineCapturedThis (scope_id, captured_name);
 167                 }
 168
 169                 public static void DefineCapturedScope (int scope_id, int id, string captured_name)
 170                 {
 171                         if (symwriter != null)
 172                                 symwriter.DefineCapturedScope (scope_id, id, captured_name);
 173                 }
 174
 175                 public static void SetRealMethodName (string name)
 176                 {
 177                         if (symwriter != null)
 178                                 symwriter.SetRealMethodName (name);
 179                 }
 180
 181                 public static void OpenCompilerGeneratedBlock (ILGenerator ig)
 182                 {
 183                         if (symwriter != null) {
 184                                 int offset = symwriter.GetILOffset (ig);
 185                                 symwriter.OpenCompilerGeneratedBlock (offset);
 186                         }
 187                 }
 188
 189                 public static void CloseCompilerGeneratedBlock (ILGenerator ig)
 190                 {
 191                         if (symwriter != null) {
 192                                 int offset = symwriter.GetILOffset (ig);
 193                                 symwriter.CloseCompilerGeneratedBlock (offset);
 194                         }
 195                 }
 196
 197                 public static void StartIteratorBody (ILGenerator ig)
 198                 {
 199                         if (symwriter != null) {
 200                                 int offset = symwriter.GetILOffset (ig);
 201                                 symwriter.StartIteratorBody (offset);
 202                         }
 203                 }
 204
 205                 public static void EndIteratorBody (ILGenerator ig)
 206                 {
 207                         if (symwriter != null) {
 208                                 int offset = symwriter.GetILOffset (ig);
 209                                 symwriter.EndIteratorBody (offset);
 210                         }
 211                 }
 212
 213                 public static void StartIteratorDispatcher (ILGenerator ig)
 214                 {
 215                         if (symwriter != null) {
 216                                 int offset = symwriter.GetILOffset (ig);
 217                                 symwriter.StartIteratorDispatcher (offset);
 218                         }
 219                 }
 220
 221                 public static void EndIteratorDispatcher (ILGenerator ig)
 222                 {
 223                         if (symwriter != null) {
 224                                 int offset = symwriter.GetILOffset (ig);
 225                                 symwriter.EndIteratorDispatcher (offset);
 226                         }
 227                 }
 228 #endregion
 229
 230                 public static void MarkSequencePoint (ILGenerator ig, int row, int column)
 231                 {
 232                         if (symwriter != null) {
 233                                 int offset = symwriter.GetILOffset (ig);
 234                                 symwriter.MarkSequencePoint (offset, row, column);
 235                         }
 236                 }
 237
 238                 public static void WriteSymbolFile ()
 239                 {
 240                         if (symwriter != null)
 241                                 symwriter.WriteSymbolFile ();
 242                 }
 243
 244                 public static bool Initialize (ModuleBuilder module, string filename)
 245                 {
 246                         symwriter = new SymbolWriterImpl (module, filename);
 247                         if (!symwriter.Initialize ()) {
 248                                 symwriter = null;
 249                                 return false;
 250                         }
 251
 252                         return true;
 253                 }
 254         }
 255 }