mcs/class/Mono.Debugger.Soft/Mono.Debugger.Soft/MethodMirror.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Text;
   4 using System.Reflection;
   5 using C = Mono.Cecil;
   6 using Mono.Cecil.Metadata;
   7
   8 namespace Mono.Debugger.Soft
   9 {
  10         public class MethodMirror : Mirror
  11         {
  12                 string name;
  13                 MethodInfo info;
  14                 TypeMirror declaring_type;
  15                 DebugInfo debug_info;
  16                 C.MethodDefinition meta;
  17                 ParameterInfoMirror[] param_info;
  18                 ParameterInfoMirror ret_param;
  19                 LocalVariable[] locals;
  20                 IList<Location> locations;
  21                 MethodBodyMirror body;
  22                 MethodMirror gmd;
  23                 TypeMirror[] type_args;
  24
  25                 internal MethodMirror (VirtualMachine vm, long id) : base (vm, id) {
  26                 }
  27
  28                 public string Name {
  29                         get {
  30                                 if (name == null)
  31                                         name = vm.conn.Method_GetName (id);
  32                                 return name;
  33                         }
  34                 }
  35
  36                 public TypeMirror DeclaringType {
  37                         get {
  38                                 if (declaring_type == null)
  39                                         declaring_type = vm.GetType (vm.conn.Method_GetDeclaringType (id));
  40                                 return declaring_type;
  41                         }
  42                 }
  43
  44                 public TypeMirror ReturnType {
  45                         get {
  46                                 return ReturnParameter.ParameterType;
  47                         }
  48                 }
  49
  50                 // FIXME:
  51                 public string FullName {
  52                         get {
  53                                 string type_namespace = DeclaringType.Namespace;
  54                                 string type_name = DeclaringType.Name;
  55                                 StringBuilder sb = new StringBuilder ();
  56                                 sb.Append (ReturnType.Name);
  57                                 sb.Append (' ');
  58                                 if (type_namespace != String.Empty)
  59                                         sb.Append (type_namespace + ".");
  60                                 sb.Append(type_name);
  61                                 sb.Append(":");
  62                                 sb.Append(Name);
  63                                 sb.Append(" ");
  64                                 sb.Append("(");
  65                                 for (var i = 0; i < param_info.Length; i++) {
  66                                         sb.Append(param_info[i].ParameterType.Name);
  67                                         if (i != param_info.Length - 1)
  68                                                 sb.Append(", ");
  69                                 }
  70                                 sb.Append(")");
  71                                 return sb.ToString ();
  72                         }
  73                 }
  74
  75                 MethodInfo GetInfo () {
  76                         if (info == null)
  77                                 info = vm.conn.Method_GetInfo (id);
  78
  79                         return info;
  80                 }
  81
  82                 public int MetadataToken {
  83                         get {
  84                                 return GetInfo ().token;
  85                         }
  86                 }
  87
  88                 public MethodAttributes Attributes {
  89                         get {
  90                                 return (MethodAttributes) GetInfo ().attributes;
  91                         }
  92                 }
  93
  94                 public bool IsPublic {
  95                         get {
  96                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Public;
  97                         }
  98                 }
  99                 public bool IsPrivate {
 100                         get {
 101                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Private;
 102                         }
 103                 }
 104                 public bool IsFamily {
 105                         get {
 106                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Family;
 107                         }
 108                 }
 109                 public bool IsAssembly {
 110                         get {
 111                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Assembly;
 112                         }
 113                 }
 114                 public bool IsFamilyAndAssembly {
 115                         get {
 116                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.FamANDAssem;
 117                         }
 118                 }
 119                 public bool IsFamilyOrAssembly {
 120                         get {
 121                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.FamORAssem;
 122                         }
 123                 }
 124                 public bool IsStatic {
 125                         get {
 126                                 return (Attributes & MethodAttributes.Static) != 0;
 127                         }
 128                 }
 129                 public bool IsFinal {
 130                         get {
 131                                 return (Attributes & MethodAttributes.Final) != 0;
 132                         }
 133                 }
 134                 public bool IsVirtual {
 135                         get {
 136                                 return (Attributes & MethodAttributes.Virtual) != 0;
 137                         }
 138                 }
 139                 public bool IsHideBySig {
 140                         get {
 141                                 return (Attributes & MethodAttributes.HideBySig) != 0;
 142                         }
 143                 }
 144                 public bool IsAbstract {
 145                         get {
 146                                 return (Attributes & MethodAttributes.Abstract) != 0;
 147                         }
 148                 }
 149                 public bool IsSpecialName {
 150                         get {
 151                                 return (Attributes & MethodAttributes.SpecialName) != 0;
 152                         }
 153                 }
 154
 155                 public bool IsConstructor {
 156                         get {
 157                                 int attr = (int)Attributes;
 158                                 return ((attr & (int)MethodAttributes.RTSpecialName) != 0
 159                                         && (Name == ".ctor"));
 160                         }
 161                 }
 162
 163                 // Since protocol version 2.12
 164                 public bool IsGenericMethodDefinition {
 165                         get {
 166                                 vm.CheckProtocolVersion (2, 12);
 167                                 return GetInfo ().is_gmd;
 168                         }
 169                 }
 170
 171                 public bool IsGenericMethod {
 172                         get {
 173                                 if (vm.Version.AtLeast (2, 12)) {
 174                                         return GetInfo ().is_generic_method;
 175                                 } else {
 176                                         return Name.IndexOf ('`') != -1;
 177                                 }
 178                         }
 179                 }
 180
 181                 public ParameterInfoMirror[] GetParameters () {
 182                         if (param_info == null) {
 183                                 var pi = vm.conn.Method_GetParamInfo (id);
 184                                 param_info = new ParameterInfoMirror [pi.param_count];
 185                                 // Return
 186                                 ret_param = new ParameterInfoMirror (this, -1, vm.GetType (pi.ret_type), null, ParameterAttributes.Retval);
 187                                 // FIXME: this
 188                                 // FIXME: Attributes
 189                                 for (int i = 0; i < pi.param_count; ++i) {
 190                                         param_info [i] = new ParameterInfoMirror (this, i, vm.GetType (pi.param_types [i]), pi.param_names [i], 0);
 191                                 }
 192                         }
 193
 194                         return param_info;
 195                 }
 196
 197                 public ParameterInfoMirror ReturnParameter {
 198                         get {
 199                                 if (ret_param == null)
 200                                         GetParameters ();
 201                                 return ret_param;
 202                         }
 203                 }
 204
 205                 public LocalVariable[] GetLocals () {
 206                         if (locals == null) {
 207                                 var li = vm.conn.Method_GetLocalsInfo (id);
 208                                 // Add the arguments as well
 209                                 var pi = vm.conn.Method_GetParamInfo (id);
 210
 211                                 locals = new LocalVariable [pi.param_count + li.names.Length];
 212
 213                                 for (int i = 0; i < pi.param_count; ++i)
 214                                         locals [i] = new LocalVariable (vm, this, i, pi.param_types [i], pi.param_names [i], -1, -1, true);
 215
 216                                 for (int i = 0; i < li.names.Length; ++i)
 217                                         locals [i + pi.param_count] = new LocalVariable (vm, this, i, li.types [i], li.names [i], li.live_range_start [i], li.live_range_end [i], false);
 218                         }
 219                         return locals;
 220                 }
 221
 222                 public LocalVariable GetLocal (string name) {
 223                         if (name == null)
 224                                 throw new ArgumentNullException ("name");
 225
 226                         GetLocals ();
 227
 228                         LocalVariable res = null;
 229                         for (int i = 0; i < locals.Length; ++i) {
 230                                 if (locals [i].Name == name) {
 231                                         if (res != null)
 232                                                 throw new AmbiguousMatchException ("More that one local has the name '" + name + "'.");
 233                                         res = locals [i];
 234                                 }
 235                         }
 236
 237                         return res;
 238                 }
 239
 240                 public MethodBodyMirror GetMethodBody () {
 241                         if (body == null) {
 242                                 MethodBodyInfo info = vm.conn.Method_GetBody (id);
 243
 244                                 body = new MethodBodyMirror (vm, this, info.il);
 245                         }
 246                         return body;
 247                 }
 248
 249                 public MethodMirror GetGenericMethodDefinition () {
 250                         vm.CheckProtocolVersion (2, 12);
 251                         if (gmd == null) {
 252                                 if (info.gmd == 0)
 253                                         throw new InvalidOperationException ();
 254                                 gmd = vm.GetMethod (info.gmd);
 255                         }
 256                         return gmd;
 257                 }
 258
 259                 // Since protocol version 2.15
 260                 public TypeMirror[] GetGenericArguments () {
 261                         vm.CheckProtocolVersion (2, 15);
 262                         if (type_args == null)
 263                                 type_args = vm.GetTypes (GetInfo ().type_args);
 264                         return type_args;
 265                 }
 266
 267                 public IList<int> ILOffsets {
 268                         get {
 269                                 if (debug_info == null)
 270                                         debug_info = vm.conn.Method_GetDebugInfo (id);
 271                                 return Array.AsReadOnly (debug_info.il_offsets);
 272                         }
 273                 }
 274
 275                 public IList<int> LineNumbers {
 276                         get {
 277                                 if (debug_info == null)
 278                                         debug_info = vm.conn.Method_GetDebugInfo (id);
 279                                 return Array.AsReadOnly (debug_info.line_numbers);
 280                         }
 281                 }
 282
 283                 public string SourceFile {
 284                         get {
 285                                 if (debug_info == null)
 286                                         debug_info = vm.conn.Method_GetDebugInfo (id);
 287                                 return debug_info.source_files.Length > 0 ? debug_info.source_files [0].source_file : null;
 288                         }
 289                 }
 290
 291                 public IList<Location> Locations {
 292                         get {
 293                                 if (locations == null) {
 294                                         var il_offsets = ILOffsets;
 295                                         var line_numbers = LineNumbers;
 296                                         IList<Location> res = new Location [ILOffsets.Count];
 297                                         for (int i = 0; i < il_offsets.Count; ++i)
 298                                                 res [i] = new Location (vm, this, -1, il_offsets [i], debug_info.source_files [i].source_file, line_numbers [i], 0, debug_info.source_files [i].hash);
 299                                         locations = res;
 300                                 }
 301                                 return locations;
 302                         }
 303                 }
 304
 305                 internal int il_offset_to_line_number (int il_offset, out string src_file, out byte[] src_hash) {
 306                         if (debug_info == null)
 307                                 debug_info = vm.conn.Method_GetDebugInfo (id);
 308
 309                         // FIXME: Optimize this
 310                         src_file = null;
 311                         src_hash = null;
 312                         for (int i = debug_info.il_offsets.Length - 1; i >= 0; --i) {
 313                                 if (debug_info.il_offsets [i] <= il_offset) {
 314                                         src_file = debug_info.source_files [i].source_file;
 315                                         src_hash = debug_info.source_files [i].hash;
 316                                         return debug_info.line_numbers [i];
 317                                 }
 318                         }
 319                         return -1;
 320                 }
 321
 322                 public Location LocationAtILOffset (int il_offset) {
 323                         IList<Location> locs = Locations;
 324
 325                         // FIXME: Optimize this
 326                         for (int i = locs.Count - 1; i >= 0; --i) {
 327                                 if (locs [i].ILOffset <= il_offset)
 328                                         return locs [i];
 329                         }
 330
 331                         return null;
 332                 }
 333
 334                 public C.MethodDefinition Metadata {
 335                         get {
 336                                 if (meta == null)
 337                                         meta = (C.MethodDefinition)DeclaringType.Assembly.Metadata.MainModule.LookupToken (MetadataToken);
 338                                 return meta;
 339                         }
 340                 }
 341         }
 342 }