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

   1
   2 //
   3 // System.Reflection.Emit/MethodBuilder.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
  17 namespace System.Reflection.Emit {
  18         public sealed class MethodBuilder : MethodInfo {
  19                 private RuntimeMethodHandle mhandle;
  20                 private Type rtype;
  21                 private Type[] parameters;
  22                 private MethodAttributes attrs;
  23                 private string name;
  24                 private int table_idx;
  25                 private byte[] code;
  26                 private ILGenerator ilgen;
  27                 internal TypeBuilder type;
  28                 private ParameterBuilder[] pinfo;
  29
  30                 internal MethodBuilder (TypeBuilder tb, string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
  31                         this.name = name;
  32                         this.attrs = attributes;
  33                         // call conv
  34                         this.rtype = returnType;
  35                         if (parameterTypes != null) {
  36                                 this.parameters = new Type [parameterTypes.Length];
  37                                 System.Array.Copy (parameterTypes, this.parameters, parameterTypes.Length);
  38                         }
  39                         type = tb;
  40                         table_idx = tb.module.assemblyb.get_next_table_index (0x06, true);
  41                 }
  42
  43                 public override Type ReturnType {get {return rtype;}}
  44                 public override Type ReflectedType {get {return null;}}
  45                 public override Type DeclaringType {get {return type;}}
  46                 public override string Name {get {return name;}}
  47                 public override RuntimeMethodHandle MethodHandle {get {return mhandle;}}
  48                 public override MethodAttributes Attributes {get {return attrs;}}
  49                 public override ICustomAttributeProvider ReturnTypeCustomAttributes {
  50                         get {return null;}
  51                 }
  52                 public MethodToken GetToken() {
  53                         return new MethodToken(0x06000000 | table_idx);
  54                 }
  55
  56                 public override MethodInfo GetBaseDefinition() {
  57                         return null;
  58                 }
  59                 public override MethodImplAttributes GetMethodImplementationFlags() {
  60                         return (MethodImplAttributes)0;
  61                 }
  62                 public override ParameterInfo[] GetParameters() {
  63                         return null;
  64                 }
  65
  66                 /*
  67                  * FIXME: this method signature needs to be expanded to handle also
  68                  * a ILGenerator.
  69                  */
  70                 public void CreateMethodBody( byte[] il, int count) {
  71                         code = new byte [count];
  72                         System.Array.Copy(il, code, count);
  73                 }
  74                 public override Object Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) {
  75                         return null;
  76                 }
  77                 public override bool IsDefined (Type attribute_type, bool inherit) {
  78                         return false;
  79                 }
  80                 public override object[] GetCustomAttributes( bool inherit) {
  81                         return null;
  82                 }
  83                 public override object[] GetCustomAttributes( Type attributeType, bool inherit) {
  84                         return null;
  85                 }
  86                 public ILGenerator GetILGenerator () {
  87                         return GetILGenerator (256);
  88                 }
  89                 public ILGenerator GetILGenerator (int size) {
  90                         ilgen = new ILGenerator (this, size);
  91                         return ilgen;
  92                 }
  93
  94                 public ParameterBuilder DefineParameter( int position, ParameterAttributes attributes, string strParamName) {
  95                         ParameterBuilder pb = new ParameterBuilder (this, position, attributes, strParamName);
  96                         /* FIXME: add it to pinfo */
  97                         return pb;
  98                 }
  99
 100                 internal void fixup () {
 101                         if (ilgen != null)
 102                                 ilgen.label_fixup ();
 103                 }
 104         }
 105 }
 106