mcs/class/corlib/System.Reflection/MethodBase.cs

   1 //
   2 // System.Reflection/MethodBase.cs
   3 //
   4 // Author:
   5 //   Paolo Molaro (lupus@ximian.com)
   6 //
   7 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   8 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System.Diagnostics;
  31 using System.Globalization;
  32 using System.Reflection.Emit;
  33 using System.Runtime.CompilerServices;
  34 using System.Runtime.InteropServices;
  35
  36 namespace System.Reflection {
  37
  38 #if NET_2_0
  39         [ComVisible (true)]
  40         [ComDefaultInterfaceAttribute (typeof (_MethodBase))]
  41 #endif
  42         [Serializable]
  43         [ClassInterface(ClassInterfaceType.None)]
  44         public abstract class MethodBase: MemberInfo, _MethodBase {
  45
  46                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
  47                 public extern static MethodBase GetCurrentMethod ();
  48
  49                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
  50                 private extern static MethodBase GetMethodFromHandleInternal(IntPtr handle);
  51
  52                 public static MethodBase GetMethodFromHandle(RuntimeMethodHandle handle) {
  53                         return GetMethodFromHandleInternal (handle.Value);
  54                 }
  55
  56                 public abstract MethodImplAttributes GetMethodImplementationFlags();
  57
  58                 public abstract ParameterInfo[] GetParameters();
  59
  60                 //
  61                 // This is a quick version for our own use. We should override
  62                 // it where possible so that it does not allocate an array.
  63                 //
  64                 internal virtual int GetParameterCount ()
  65                 {
  66                         ParameterInfo [] pi = GetParameters ();
  67                         if (pi == null)
  68                                 return 0;
  69
  70                         return pi.Length;
  71                 }
  72
  73 #if ONLY_1_1
  74                 public new Type GetType ()
  75                 {
  76                         return base.GetType ();
  77                 }
  78 #endif
  79
  80                 [DebuggerHidden]
  81                 [DebuggerStepThrough]
  82 #if NET_2_0 || BOOTSTRAP_NET_2_0
  83                 virtual
  84 #endif
  85                 public Object Invoke(Object obj, Object[] parameters) {
  86                         return Invoke (obj, 0, null, parameters, null);
  87                 }
  88
  89                 public abstract Object Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture);
  90
  91                 protected MethodBase()
  92                 {
  93                 }
  94
  95                 public abstract RuntimeMethodHandle MethodHandle { get; }
  96                 public abstract MethodAttributes Attributes { get; }
  97                 public virtual CallingConventions CallingConvention { get {return CallingConventions.Standard;} }
  98                 public Boolean IsPublic {
  99                         get {
 100                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Public;
 101                         }
 102                 }
 103                 public Boolean IsPrivate {
 104                         get {
 105                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Private;
 106                         }
 107                 }
 108                 public Boolean IsFamily {
 109                         get {
 110                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Family;
 111                         }
 112                 }
 113                 public Boolean IsAssembly {
 114                         get {
 115                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Assembly;
 116                         }
 117                 }
 118                 public Boolean IsFamilyAndAssembly {
 119                         get {
 120                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.FamANDAssem;
 121                         }
 122                 }
 123                 public Boolean IsFamilyOrAssembly {
 124                         get {
 125                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.FamORAssem;
 126                         }
 127                 }
 128                 public Boolean IsStatic {
 129                         get {
 130                                 return (Attributes & MethodAttributes.Static) != 0;
 131                         }
 132                 }
 133                 public Boolean IsFinal {
 134                         get {
 135                                 return (Attributes & MethodAttributes.Final) != 0;
 136                         }
 137                 }
 138                 public Boolean IsVirtual {
 139                         get {
 140                                 return (Attributes & MethodAttributes.Virtual) != 0;
 141                         }
 142                 }
 143                 public Boolean IsHideBySig {
 144                         get {
 145                                 return (Attributes & MethodAttributes.HideBySig) != 0;
 146                         }
 147                 }
 148                 public Boolean IsAbstract {
 149                         get {
 150                                 return (Attributes & MethodAttributes.Abstract) != 0;
 151                         }
 152                 }
 153                 public Boolean IsSpecialName {
 154                         get {
 155                                 int attr = (int)Attributes;
 156                                 return (attr & (int)MethodAttributes.SpecialName) != 0;
 157                         }
 158                 }
 159                 public Boolean IsConstructor {
 160                         get {
 161                                 int attr = (int)Attributes;
 162                                 return ((attr & (int)MethodAttributes.RTSpecialName) != 0
 163                                         && (Name == ".ctor"));
 164                         }
 165                 }
 166
 167                 internal virtual int get_next_table_index (object obj, int table, bool inc) {
 168                         if (this is MethodBuilder) {
 169                                 MethodBuilder mb = (MethodBuilder)this;
 170                                 return mb.get_next_table_index (obj, table, inc);
 171                         }
 172                         if (this is ConstructorBuilder) {
 173                                 ConstructorBuilder mb = (ConstructorBuilder)this;
 174                                 return mb.get_next_table_index (obj, table, inc);
 175                         }
 176                         throw new Exception ("Method is not a builder method");
 177                 }
 178
 179 #if NET_2_0 || BOOTSTRAP_NET_2_0
 180                 public virtual Type [] GetGenericArguments ()
 181                 {
 182                         throw new NotSupportedException ();
 183                 }
 184
 185                 public virtual bool ContainsGenericParameters {
 186                         get {
 187                                 return false;
 188                         }
 189                 }
 190
 191                 public virtual bool IsGenericMethodDefinition {
 192                         get {
 193                                 throw new NotSupportedException ();
 194                         }
 195                 }
 196
 197                 public virtual bool IsGenericMethod {
 198                         get {
 199                                 throw new NotSupportedException ();
 200                         }
 201                 }
 202 #endif
 203
 204 #if NET_2_0
 205                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 206                 internal extern static MethodBody GetMethodBodyInternal (IntPtr handle);
 207
 208                 internal static MethodBody GetMethodBody (IntPtr handle) {
 209                         return GetMethodBodyInternal (handle);
 210                 }
 211
 212                 public virtual MethodBody GetMethodBody () {
 213                         throw new NotSupportedException ();
 214                 }
 215 #endif
 216
 217                 void _MethodBase.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
 218                 {
 219                         throw new NotImplementedException ();
 220                 }
 221
 222                 void _MethodBase.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
 223                 {
 224                         throw new NotImplementedException ();
 225                 }
 226
 227                 void _MethodBase.GetTypeInfoCount (out uint pcTInfo)
 228                 {
 229                         throw new NotImplementedException ();
 230                 }
 231
 232                 void _MethodBase.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
 233                 {
 234                         throw new NotImplementedException ();
 235                 }
 236         }
 237 }