mcs/class/corlib/System.Reflection/MonoMethod.cs

   1 //
   2 // System.Reflection/MonoMethod.cs
   3 // The class used to represent methods from the mono runtime.
   4 //
   5 // Author:
   6 //   Paolo Molaro (lupus@ximian.com)
   7 //
   8 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   9 //
  10
  11 using System;
  12 using System.Globalization;
  13 using System.Runtime.CompilerServices;
  14 using System.Runtime.InteropServices;
  15 using System.Runtime.Serialization;\r
  16
  17 namespace System.Reflection {
  18
  19         internal struct MonoMethodInfo
  20         {
  21                 internal Type parent;
  22                 internal Type ret;
  23                 internal MethodAttributes attrs;
  24                 internal MethodImplAttributes iattrs;
  25
  26                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  27                 internal static extern void get_method_info (IntPtr handle, out MonoMethodInfo info);
  28
  29                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  30                 internal static extern ParameterInfo[] get_parameter_info (IntPtr handle);
  31         };
  32
  33         /*
  34          * Note: most of this class needs to be duplicated for the contructor, since
  35          * the .NET reflection class hierarchy is so broken.
  36          */
  37         [Serializable()]
  38         internal class MonoMethod : MethodInfo, ISerializable\r
  39         {
  40                 internal IntPtr mhandle;
  41                 string name;
  42                 Type reftype;
  43
  44                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  45                 internal static extern MonoMethod get_base_definition (MonoMethod method);
  46
  47                 public override MethodInfo GetBaseDefinition ()
  48                 {
  49                         return get_base_definition (this);
  50                 }
  51
  52                 public override Type ReturnType {
  53                         get {
  54                                 MonoMethodInfo info;
  55                                 MonoMethodInfo.get_method_info (mhandle, out info);
  56                                 return info.ret;
  57                         }
  58                 }
  59                 public override ICustomAttributeProvider ReturnTypeCustomAttributes {
  60                         get {
  61                                 return new ParameterInfo (ReturnType, this);
  62                         }
  63                 }
  64
  65                 public override MethodImplAttributes GetMethodImplementationFlags() {
  66                         MonoMethodInfo info;
  67                         MonoMethodInfo.get_method_info (mhandle, out info);
  68                         return info.iattrs;
  69                 }
  70
  71                 public override ParameterInfo[] GetParameters() {
  72                         return MonoMethodInfo.get_parameter_info (mhandle);
  73                 }
  74
  75                 /*
  76                  * InternalInvoke() receives the parameters corretcly converted by the binder
  77                  * to match the types of the method signature.
  78                  */
  79                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  80                 internal extern Object InternalInvoke (Object obj, Object[] parameters);
  81
  82                 public override Object Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) {
  83                         if (binder == null)
  84                                 binder = Binder.DefaultBinder;
  85                         ParameterInfo[] pinfo = GetParameters ();
  86                         if (!Binder.ConvertArgs (binder, parameters, pinfo, culture))
  87                                 throw new ArgumentException ("parameters");
  88                         try {
  89                                 return InternalInvoke (obj, parameters);
  90                         } catch (TargetException) {
  91                                 throw;
  92                         } catch (Exception e) {
  93                                 throw new TargetInvocationException (e);
  94                         }
  95                 }
  96
  97                 public override RuntimeMethodHandle MethodHandle {
  98                         get {return new RuntimeMethodHandle (mhandle);}
  99                 }
 100                 public override MethodAttributes Attributes {
 101                         get {
 102                                 MonoMethodInfo info;
 103                                 MonoMethodInfo.get_method_info (mhandle, out info);
 104                                 return info.attrs;
 105                         }
 106                 }
 107
 108                 public override Type ReflectedType {
 109                         get {
 110                                 return reftype;
 111                         }
 112                 }
 113                 public override Type DeclaringType {
 114                         get {
 115                                 MonoMethodInfo info;
 116                                 MonoMethodInfo.get_method_info (mhandle, out info);
 117                                 return info.parent;
 118                         }
 119                 }
 120                 public override string Name {
 121                         get {
 122                                 return name;
 123                         }
 124                 }
 125
 126                 public override bool IsDefined (Type attributeType, bool inherit) {
 127                         return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
 128                 }
 129
 130                 public override object[] GetCustomAttributes( bool inherit) {
 131                         return MonoCustomAttrs.GetCustomAttributes (this, inherit);
 132                 }
 133                 public override object[] GetCustomAttributes( Type attributeType, bool inherit) {
 134                         return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
 135                 }
 136
 137                 public override string ToString () {
 138                         string parms = "";
 139                         ParameterInfo[] p = GetParameters ();
 140                         for (int i = 0; i < p.Length; ++i) {
 141                                 if (i > 0)
 142                                         parms = parms + ", ";
 143                                 parms = parms + p [i].ParameterType.Name;
 144                         }
 145                         return ReturnType.Name+" "+Name+"("+parms+")";
 146                 }
 147
 148         \r
 149                 // ISerializable\r
 150                 public void GetObjectData(SerializationInfo info, StreamingContext context) \r
 151                 {\r
 152                         ReflectionSerializationHolder.Serialize ( info, Name, ReflectedType, ToString(), MemberTypes.Method);\r
 153                 }\r
 154         }
 155
 156         internal class MonoCMethod : ConstructorInfo, ISerializable\r
 157         {
 158                 internal IntPtr mhandle;
 159                 string name;
 160                 Type reftype;
 161
 162                 public override MethodImplAttributes GetMethodImplementationFlags() {
 163                         MonoMethodInfo info;
 164                         MonoMethodInfo.get_method_info (mhandle, out info);
 165                         return info.iattrs;
 166                 }
 167
 168                 public override ParameterInfo[] GetParameters() {
 169                         return MonoMethodInfo.get_parameter_info (mhandle);
 170                 }
 171
 172                 /*
 173                  * InternalInvoke() receives the parameters corretcly converted by the binder
 174                  * to match the types of the method signature.
 175                  */
 176                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 177                 internal extern Object InternalInvoke (Object obj, Object[] parameters);
 178
 179                 public override Object Invoke (Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) {
 180                         if (binder == null)
 181                                 binder = Binder.DefaultBinder;
 182                         ParameterInfo[] pinfo = GetParameters ();
 183                         if (!Binder.ConvertArgs (binder, parameters, pinfo, culture))
 184                                 throw new ArgumentException ("parameters");
 185                         try {
 186                                 return InternalInvoke (obj, parameters);
 187                         } catch (TargetException) {
 188                                 throw;
 189                         } catch (Exception e) {
 190                                 throw new TargetInvocationException (e);
 191                         }
 192                 }
 193
 194                 public override Object Invoke (BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) {
 195                         return Invoke (null, invokeAttr, binder, parameters, culture);
 196                 }
 197
 198                 public override RuntimeMethodHandle MethodHandle {
 199                         get {return new RuntimeMethodHandle (mhandle);}
 200                 }
 201                 public override MethodAttributes Attributes {
 202                         get {
 203                                 MonoMethodInfo info;
 204                                 MonoMethodInfo.get_method_info (mhandle, out info);
 205                                 return info.attrs;
 206                         }
 207                 }
 208
 209                 public override Type ReflectedType {
 210                         get {
 211                                 return reftype;
 212                         }
 213                 }
 214                 public override Type DeclaringType {
 215                         get {
 216                                 MonoMethodInfo info;
 217                                 MonoMethodInfo.get_method_info (mhandle, out info);
 218                                 return info.parent;
 219                         }
 220                 }
 221                 public override string Name {
 222                         get {
 223                                 return name;
 224                         }
 225                 }
 226
 227                 public override bool IsDefined (Type attributeType, bool inherit) {
 228                         return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
 229                 }
 230
 231                 public override object[] GetCustomAttributes( bool inherit) {
 232                         return MonoCustomAttrs.GetCustomAttributes (this, inherit);
 233                 }
 234
 235                 public override object[] GetCustomAttributes( Type attributeType, bool inherit) {
 236                         return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
 237                 }
 238
 239                 public override string ToString () {
 240                         string parms = "";
 241                         ParameterInfo[] p = GetParameters ();
 242                         for (int i = 0; i < p.Length; ++i) {
 243                                 if (i > 0)
 244                                         parms = parms + ", ";
 245                                 parms = parms + p [i].ParameterType.Name;
 246                         }
 247                         return "Void "+Name+"("+parms+")";
 248                 }
 249 \r
 250                 // ISerializable\r
 251                 public void GetObjectData(SerializationInfo info, StreamingContext context) \r
 252                 {\r
 253                         ReflectionSerializationHolder.Serialize ( info, Name, ReflectedType, ToString(), MemberTypes.Constructor);\r
 254                 }\r
 255         }
 256 }