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 using System.Runtime.InteropServices;
  17
  18 namespace System.Reflection.Emit {
  19         public sealed class MethodBuilder : MethodInfo {
  20                 private RuntimeMethodHandle mhandle;
  21                 private Type rtype;
  22                 private Type[] parameters;
  23                 private MethodAttributes attrs;
  24                 private MethodImplAttributes iattrs;
  25                 private string name;
  26                 private int table_idx;
  27                 private byte[] code;
  28                 private ILGenerator ilgen;
  29                 private TypeBuilder type;
  30                 private ParameterBuilder[] pinfo;
  31                 private MethodInfo override_method;
  32                 private string pi_dll;
  33                 private string pi_entry;
  34                 private CharSet ncharset;
  35                 private CallingConvention native_cc;
  36                 private CallingConventions call_conv;
  37
  38                 internal MethodBuilder (TypeBuilder tb, string name, MethodAttributes attributes, CallingConventions callingConvention, Type returnType, Type[] parameterTypes) {
  39                         this.name = name;
  40                         this.attrs = attributes;
  41                         this.call_conv = callingConvention;
  42                         this.rtype = returnType;
  43                         if (parameterTypes != null) {
  44                                 this.parameters = new Type [parameterTypes.Length];
  45                                 System.Array.Copy (parameterTypes, this.parameters, parameterTypes.Length);
  46                         }
  47                         type = tb;
  48                         table_idx = get_next_table_index (0x06, true);
  49                         //Console.WriteLine ("index for "+name+" set to "+table_idx.ToString());
  50                 }
  51
  52                 internal MethodBuilder (TypeBuilder tb, string name, MethodAttributes attributes,
  53                         CallingConventions callingConvention, Type returnType, Type[] parameterTypes,
  54                         String dllName, String entryName, CallingConvention nativeCConv, CharSet nativeCharset)
  55                         : this (tb, name, attributes, callingConvention, returnType, parameterTypes) {
  56                         pi_dll = dllName;
  57                         pi_entry = entryName;
  58                         native_cc = nativeCConv;
  59                         ncharset = nativeCharset;
  60                 }
  61
  62                 internal TypeBuilder TypeBuilder {
  63                         get {return type;}
  64                 }
  65
  66                 public override Type ReturnType {get {return rtype;}}
  67                 public override Type ReflectedType {get {return type;}}
  68                 public override Type DeclaringType {get {return type;}}
  69                 public override string Name {get {return name;}}
  70                 public override RuntimeMethodHandle MethodHandle {get {return mhandle;}}
  71                 public override MethodAttributes Attributes {get {return attrs;}}
  72                 public override ICustomAttributeProvider ReturnTypeCustomAttributes {
  73                         get {return null;}
  74                 }
  75                 public MethodToken GetToken() {
  76                         return new MethodToken(0x06000000 | table_idx);
  77                 }
  78
  79                 public override MethodInfo GetBaseDefinition() {
  80                         return null;
  81                 }
  82                 public override MethodImplAttributes GetMethodImplementationFlags() {
  83                         return iattrs;
  84                 }
  85                 public override ParameterInfo[] GetParameters() {
  86                         return null;
  87                 }
  88
  89                 public void CreateMethodBody( byte[] il, int count) {
  90                         code = new byte [count];
  91                         System.Array.Copy(il, code, count);
  92                 }
  93                 public override Object Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) {
  94                         return null;
  95                 }
  96                 public override bool IsDefined (Type attribute_type, bool inherit) {
  97                         return false;
  98                 }
  99                 public override object[] GetCustomAttributes( bool inherit) {
 100                         return null;
 101                 }
 102                 public override object[] GetCustomAttributes( Type attributeType, bool inherit) {
 103                         return null;
 104                 }
 105                 public ILGenerator GetILGenerator () {
 106                         return GetILGenerator (256);
 107                 }
 108                 public ILGenerator GetILGenerator (int size) {
 109                         ilgen = new ILGenerator (this, size);
 110                         return ilgen;
 111                 }
 112
 113                 [MonoTODO]
 114                 public ParameterBuilder DefineParameter (int position, ParameterAttributes attributes, string strParamName)
 115                 {
 116                         ParameterBuilder pb = new ParameterBuilder (this, position, attributes, strParamName);
 117                         /* FIXME: add it to pinfo */
 118                         return pb;
 119                 }
 120
 121                 internal void fixup () {
 122                         if (ilgen != null)
 123                                 ilgen.label_fixup ();
 124                 }
 125
 126                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 127                 }
 128                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 129                 }
 130                 public void SetImplementationFlags( MethodImplAttributes attributes) {
 131                         iattrs = attributes;
 132                 }
 133                 internal override int get_next_table_index (int table, bool inc) {
 134                         return type.get_next_table_index (table, inc);
 135                 }
 136
 137                 internal void set_override (MethodInfo mdecl) {
 138                         override_method = mdecl;
 139                 }
 140         }
 141 }
 142