mcs/class/corlib/System.Reflection.Emit/SignatureHelper.cs

   1
   2 //
   3 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
   4 //
   5 // Permission is hereby granted, free of charge, to any person obtaining
   6 // a copy of this software and associated documentation files (the
   7 // "Software"), to deal in the Software without restriction, including
   8 // without limitation the rights to use, copy, modify, merge, publish,
   9 // distribute, sublicense, and/or sell copies of the Software, and to
  10 // permit persons to whom the Software is furnished to do so, subject to
  11 // the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be
  14 // included in all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 //
  24
  25 //
  26 // System.Reflection.Emit/SignatureHelper.cs
  27 //
  28 // Author:
  29 //   Paolo Molaro (lupus@ximian.com)
  30 //
  31 // (C) 2001 Ximian, Inc.  http://www.ximian.com
  32 //
  33
  34 using System;
  35 using System.Reflection;
  36 using System.Reflection.Emit;
  37 using System.Globalization;
  38 using System.Runtime.CompilerServices;
  39 using System.Runtime.InteropServices;
  40
  41 namespace System.Reflection.Emit {
  42 #if NET_2_0
  43         [ComVisible (true)]
  44         [ComDefaultInterface (typeof (_SignatureHelper))]
  45 #endif
  46         [ClassInterface (ClassInterfaceType.None)]
  47         public sealed class SignatureHelper : _SignatureHelper {
  48                 internal enum SignatureHelperType {
  49                         HELPER_FIELD,
  50                         HELPER_LOCAL,
  51                         HELPER_METHOD,
  52                         HELPER_PROPERTY
  53                 }
  54
  55                 private ModuleBuilder module; // can be null in 2.0
  56                 private Type[] arguments;
  57                 private SignatureHelperType type;
  58                 private Type returnType;
  59                 private CallingConventions callConv;
  60                 private CallingConvention unmanagedCallConv;
  61
  62                 internal SignatureHelper (ModuleBuilder module, SignatureHelperType type)
  63                 {
  64                         this.type = type;
  65                         this.module = module;
  66                 }
  67
  68                 public static SignatureHelper GetFieldSigHelper (Module mod)
  69                 {
  70                         if (mod != null && !(mod is ModuleBuilder))
  71                                 throw new ArgumentException ("ModuleBuilder is expected");
  72
  73                         return new SignatureHelper ((ModuleBuilder) mod, SignatureHelperType.HELPER_FIELD);
  74                 }
  75
  76                 public static SignatureHelper GetLocalVarSigHelper (Module mod)
  77                 {
  78                         if (mod != null && !(mod is ModuleBuilder))
  79                                 throw new ArgumentException ("ModuleBuilder is expected");
  80
  81                         return new SignatureHelper ((ModuleBuilder) mod, SignatureHelperType.HELPER_LOCAL);
  82                 }
  83
  84 #if NET_2_0
  85                 public static SignatureHelper GetLocalVarSigHelper ()
  86                 {
  87                         return new SignatureHelper (null, SignatureHelperType.HELPER_LOCAL);
  88                 }
  89
  90                 public static SignatureHelper GetMethodSigHelper(CallingConventions callingConvention, Type returnType)
  91                 {
  92                         return GetMethodSigHelper (null, callingConvention, (CallingConvention)0, returnType, null);
  93                 }
  94
  95                 public static SignatureHelper GetMethodSigHelper (CallingConvention unmanagedCallingConvention,
  96                                                                   Type returnType)
  97                 {
  98                         return GetMethodSigHelper (null, CallingConventions.Standard, unmanagedCallingConvention, returnType, null);
  99                 }
 100 #endif
 101
 102                 public static SignatureHelper GetMethodSigHelper( Module mod, CallingConventions callingConvention, Type returnType)
 103                 {
 104                         return GetMethodSigHelper (mod, callingConvention, (CallingConvention)0, returnType, null);
 105                 }
 106
 107                 public static SignatureHelper GetMethodSigHelper( Module mod, CallingConvention unmanagedCallingConvention, Type returnType)
 108                 {
 109                         return GetMethodSigHelper (mod, CallingConventions.Standard, unmanagedCallingConvention, returnType, null);
 110                 }
 111
 112                 public static SignatureHelper GetMethodSigHelper( Module mod, Type returnType, Type[] parameterTypes)
 113                 {
 114                         return GetMethodSigHelper (mod, CallingConventions.Standard,
 115                                                                            (CallingConvention)0, returnType,
 116                                                                            parameterTypes);
 117                 }
 118                 [MonoTODO("Not implemented")]
 119                 public static SignatureHelper GetPropertySigHelper( Module mod, Type returnType, Type[] parameterTypes)
 120                 {
 121                         throw new NotImplementedException ();
 122                 }
 123
 124 #if NET_2_0
 125                 [MonoTODO("Not implemented")]
 126                 public static SignatureHelper GetPropertySigHelper (Module mod, Type returnType,
 127                                                                     Type [] requiredReturnTypeCustomModifiers,
 128                                                                     Type [] optionalReturnTypeCustomModifiers,
 129                                                                     Type [] parameterTypes,
 130                                                                     Type [] [] requiredParameterTypeCustomModifiers,
 131                                                                     Type [] [] optionalParameterTypeCustomModifiers)
 132                 {
 133                         throw new NotImplementedException ();
 134                 }
 135 #endif
 136
 137                 public void AddArgument (Type clsArgument)
 138                 {
 139                         if (arguments != null) {
 140                                 Type[] new_a = new Type [arguments.Length + 1];
 141                                 System.Array.Copy (arguments, new_a, arguments.Length);
 142                                 new_a [arguments.Length] = clsArgument;
 143                                 arguments = new_a;
 144                         } else {
 145                                 arguments = new Type [1];
 146                                 arguments [0] = clsArgument;
 147                         }
 148                 }
 149
 150 #if NET_2_0
 151                 [MonoTODO ("pinned is ignored")]
 152                 public void AddArgument (Type argument, bool pinned)
 153                 {
 154                         AddArgument (argument);
 155                 }
 156
 157                 [MonoTODO ("not implemented")]
 158                 public void AddArgument (Type argument, Type [] requiredCustomModifiers, Type [] optionalCustomModifiers)
 159                 {
 160                         throw new NotImplementedException ();
 161                 }
 162 #endif
 163
 164                 [MonoTODO("Not implemented")]
 165                 public void AddSentinel ()
 166                 {
 167                         throw new NotImplementedException ();
 168                 }
 169
 170                 [MonoTODO("Not implemented")]
 171                 public override bool Equals (object obj)
 172                 {
 173                         throw new NotImplementedException ();
 174                 }
 175
 176                 [MonoTODO("Not implemented")]
 177                 public override int GetHashCode ()
 178                 {
 179                         throw new NotImplementedException ();
 180                 }
 181
 182                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 183                 internal extern byte[] get_signature_local ();
 184
 185                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 186                 internal extern byte[] get_signature_field ();
 187
 188                 public byte[] GetSignature ()
 189                 {
 190                         switch (type) {
 191                         case SignatureHelperType.HELPER_LOCAL:
 192                                 return get_signature_local ();
 193                         case SignatureHelperType.HELPER_FIELD:
 194                                 return get_signature_field ();
 195                         default:
 196                                 throw new NotImplementedException ();
 197                         }
 198                 }
 199
 200                 public override string ToString() {
 201                         return "SignatureHelper";
 202                 }
 203
 204                 internal static SignatureHelper GetMethodSigHelper( Module mod, CallingConventions callConv, CallingConvention unmanagedCallConv, Type returnType,
 205                                                                                                                    Type [] parameters)
 206                 {
 207                         if (mod != null && !(mod is ModuleBuilder))
 208                                 throw new ArgumentException ("ModuleBuilder is expected");
 209
 210                         SignatureHelper helper =
 211                                 new SignatureHelper ((ModuleBuilder)mod, SignatureHelperType.HELPER_METHOD);
 212                         helper.returnType = returnType;
 213                         helper.callConv = callConv;
 214                         helper.unmanagedCallConv = unmanagedCallConv;
 215
 216                         if (parameters != null) {
 217                                 helper.arguments = new Type [parameters.Length];
 218                                 for (int i = 0; i < parameters.Length; ++i)
 219                                         helper.arguments [i] = parameters [i];
 220                         }
 221
 222                         return helper;
 223                 }
 224
 225                 void _SignatureHelper.GetIDsOfNames([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 226                 {
 227                         throw new NotImplementedException ();
 228                 }
 229
 230                 void _SignatureHelper.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 231                 {
 232                         throw new NotImplementedException ();
 233                 }
 234
 235                 void _SignatureHelper.GetTypeInfoCount (out uint pcTInfo)
 236                 {
 237                         throw new NotImplementedException ();
 238                 }
 239
 240                 void _SignatureHelper.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 241                 {
 242                         throw new NotImplementedException ();
 243                 }
 244         }
 245 }
 246