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

   1
   2 //
   3 // System.Reflection.Emit/SignatureHelper.cs
   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.Reflection;
  13 using System.Reflection.Emit;
  14 using System.Globalization;
  15 using System.Runtime.CompilerServices;
  16 using System.Runtime.InteropServices;
  17
  18 namespace System.Reflection.Emit {
  19         public sealed class SignatureHelper {
  20                 internal enum SignatureHelperType {
  21                         HELPER_FIELD,
  22                         HELPER_LOCAL,
  23                         HELPER_METHOD,
  24                         HELPER_PROPERTY
  25                 }
  26
  27                 private ModuleBuilder module;
  28                 private Type[] arguments;
  29                 private SignatureHelperType type;
  30
  31                 internal SignatureHelper (ModuleBuilder module, SignatureHelperType type)
  32                 {
  33                         this.type = type;
  34                         this.module = module;
  35                 }
  36
  37                 public static SignatureHelper GetFieldSigHelper (Module mod)
  38                 {
  39                         if (!(mod is ModuleBuilder))
  40                                 throw new NotImplementedException ();
  41
  42                         return new SignatureHelper ((ModuleBuilder) mod, SignatureHelperType.HELPER_FIELD);
  43                 }
  44                 public static SignatureHelper GetLocalVarSigHelper (Module mod)
  45                 {
  46                         if (!(mod is ModuleBuilder))
  47                                 throw new NotImplementedException ();
  48
  49                         return new SignatureHelper ((ModuleBuilder) mod, SignatureHelperType.HELPER_LOCAL);
  50                 }
  51                 [MonoTODO]
  52                 public static SignatureHelper GetMethodSigHelper( Module mod, CallingConventions callingConvention, Type returnType)
  53                 {
  54                         throw new NotImplementedException ();
  55                 }
  56                 [MonoTODO]
  57                 public static SignatureHelper GetMethodSigHelper( Module mod, Type returnType, Type[] parameterTypes)
  58                 {
  59                         throw new NotImplementedException ();
  60                 }
  61                 [MonoTODO]
  62                 public static SignatureHelper GetPropertySigHelper( Module mod, Type returnType, Type[] parameterTypes)
  63                 {
  64                         throw new NotImplementedException ();
  65                 }
  66                 public void AddArgument (Type clsArgument)
  67                 {
  68                         if (arguments != null) {
  69                                 Type[] new_a = new Type [arguments.Length + 1];
  70                                 System.Array.Copy (arguments, new_a, arguments.Length);
  71                                 new_a [arguments.Length] = clsArgument;
  72                                 arguments = new_a;
  73                         } else {
  74                                 arguments = new Type [1];
  75                                 arguments [0] = clsArgument;
  76                         }
  77                 }
  78                 [MonoTODO]
  79                 public void AddSentinel ()
  80                 {
  81                         throw new NotImplementedException ();
  82                 }
  83                 [MonoTODO]
  84                 public override bool Equals (object obj)
  85                 {
  86                         throw new NotImplementedException ();
  87                 }
  88                 [MonoTODO]
  89                 public override int GetHashCode ()
  90                 {
  91                         throw new NotImplementedException ();
  92                 }
  93
  94                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  95                 internal extern byte[] get_signature_local ();
  96
  97                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  98                 internal extern byte[] get_signature_field ();
  99
 100                 public byte[] GetSignature ()
 101                 {
 102                         switch (type) {
 103                         case SignatureHelperType.HELPER_LOCAL:
 104                                 return get_signature_local ();
 105                         case SignatureHelperType.HELPER_FIELD:
 106                                 return get_signature_field ();
 107                         default:
 108                                 throw new NotImplementedException ();
 109                         }
 110                 }
 111
 112                 public override string ToString() {
 113                         return "SignatureHelper";
 114                 }
 115
 116
 117
 118         }
 119 }
 120