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;
  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 is ModuleBuilder))
  71                                 throw new NotImplementedException ();
  72
  73                         return new SignatureHelper ((ModuleBuilder) mod, SignatureHelperType.HELPER_FIELD);
  74                 }
  75
  76                 public static SignatureHelper GetLocalVarSigHelper (Module mod)
  77                 {
  78                         if (!(mod is ModuleBuilder))
  79                                 throw new NotImplementedException ();
  80
  81                         return new SignatureHelper ((ModuleBuilder) mod, SignatureHelperType.HELPER_LOCAL);
  82                 }
  83
  84                 public static SignatureHelper GetMethodSigHelper( Module mod, CallingConventions callingConvention, Type returnType)
  85                 {
  86                         return GetMethodSigHelper (mod, callingConvention, (CallingConvention)0, returnType, null);
  87                 }
  88
  89                 public static SignatureHelper GetMethodSigHelper( Module mod, CallingConvention unmanagedCallingConvention, Type returnType)
  90                 {
  91                         return GetMethodSigHelper (mod, CallingConventions.Standard, unmanagedCallingConvention, returnType, null);
  92                 }
  93
  94                 public static SignatureHelper GetMethodSigHelper( Module mod, Type returnType, Type[] parameterTypes)
  95                 {
  96                         return GetMethodSigHelper (mod, CallingConventions.Standard,
  97                                                                            (CallingConvention)0, returnType,
  98                                                                            parameterTypes);
  99                 }
 100                 [MonoTODO("Not implemented")]
 101                 public static SignatureHelper GetPropertySigHelper( Module mod, Type returnType, Type[] parameterTypes)
 102                 {
 103                         throw new NotImplementedException ();
 104                 }
 105
 106                 public void AddArgument (Type clsArgument)
 107                 {
 108                         if (arguments != null) {
 109                                 Type[] new_a = new Type [arguments.Length + 1];
 110                                 System.Array.Copy (arguments, new_a, arguments.Length);
 111                                 new_a [arguments.Length] = clsArgument;
 112                                 arguments = new_a;
 113                         } else {
 114                                 arguments = new Type [1];
 115                                 arguments [0] = clsArgument;
 116                         }
 117                 }
 118
 119                 [MonoTODO("Not implemented")]
 120                 public void AddSentinel ()
 121                 {
 122                         throw new NotImplementedException ();
 123                 }
 124
 125                 [MonoTODO("Not implemented")]
 126                 public override bool Equals (object obj)
 127                 {
 128                         throw new NotImplementedException ();
 129                 }
 130
 131                 [MonoTODO("Not implemented")]
 132                 public override int GetHashCode ()
 133                 {
 134                         throw new NotImplementedException ();
 135                 }
 136
 137                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 138                 internal extern byte[] get_signature_local ();
 139
 140                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 141                 internal extern byte[] get_signature_field ();
 142
 143                 public byte[] GetSignature ()
 144                 {
 145                         switch (type) {
 146                         case SignatureHelperType.HELPER_LOCAL:
 147                                 return get_signature_local ();
 148                         case SignatureHelperType.HELPER_FIELD:
 149                                 return get_signature_field ();
 150                         default:
 151                                 throw new NotImplementedException ();
 152                         }
 153                 }
 154
 155                 public override string ToString() {
 156                         return "SignatureHelper";
 157                 }
 158
 159                 internal static SignatureHelper GetMethodSigHelper( Module mod, CallingConventions callConv, CallingConvention unmanagedCallConv, Type returnType,
 160                                                                                                                    Type [] parameters)
 161                 {
 162                         if (!(mod is ModuleBuilder))
 163                                 throw new NotImplementedException ();
 164
 165                         SignatureHelper helper =
 166                                 new SignatureHelper ((ModuleBuilder)mod, SignatureHelperType.HELPER_METHOD);
 167                         helper.returnType = returnType;
 168                         helper.callConv = callConv;
 169                         helper.unmanagedCallConv = unmanagedCallConv;
 170
 171                         if (parameters != null) {
 172                                 helper.arguments = new Type [parameters.Length];
 173                                 for (int i = 0; i < parameters.Length; ++i)
 174                                         helper.arguments [i] = parameters [i];
 175                         }
 176
 177                         return helper;
 178                 }
 179
 180                 void _SignatureHelper.GetIDsOfNames([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 181                 {
 182                         throw new NotImplementedException ();
 183                 }
 184
 185                 void _SignatureHelper.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 186                 {
 187                         throw new NotImplementedException ();
 188                 }
 189
 190                 void _SignatureHelper.GetTypeInfoCount (out uint pcTInfo)
 191                 {
 192                         throw new NotImplementedException ();
 193                 }
 194
 195                 void _SignatureHelper.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 196                 {
 197                         throw new NotImplementedException ();
 198                 }
 199         }
 200 }
 201