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