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 //
   9
  10 //
  11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.Diagnostics;
  35 using System.Globalization;
  36 using System.Reflection.Emit;
  37 using System.Runtime.CompilerServices;
  38 using System.Runtime.InteropServices;
  39
  40 namespace System.Reflection {
  41
  42         [Serializable]
  43         [ClassInterface(ClassInterfaceType.AutoDual)]
  44         public abstract class MethodBase: MemberInfo {
  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                 [DebuggerHidden]
  74                 [DebuggerStepThrough]
  75 #if NET_2_0 || BOOTSTRAP_NET_2_0
  76                 virtual
  77 #endif
  78                 public Object Invoke(Object obj, Object[] parameters) {
  79                         return Invoke (obj, 0, null, parameters, null);
  80                 }
  81
  82                 public abstract Object Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture);
  83
  84                 protected MethodBase()
  85                 {
  86                 }
  87
  88                 public abstract RuntimeMethodHandle MethodHandle { get; }
  89                 public abstract MethodAttributes Attributes { get; }
  90                 public virtual CallingConventions CallingConvention { get {return CallingConventions.Standard;} }
  91                 public Boolean IsPublic {
  92                         get {
  93                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Public;
  94                         }
  95                 }
  96                 public Boolean IsPrivate {
  97                         get {
  98                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Private;
  99                         }
 100                 }
 101                 public Boolean IsFamily {
 102                         get {
 103                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Family;
 104                         }
 105                 }
 106                 public Boolean IsAssembly {
 107                         get {
 108                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Assembly;
 109                         }
 110                 }
 111                 public Boolean IsFamilyAndAssembly {
 112                         get {
 113                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.FamANDAssem;
 114                         }
 115                 }
 116                 public Boolean IsFamilyOrAssembly {
 117                         get {
 118                                 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.FamORAssem;
 119                         }
 120                 }
 121                 public Boolean IsStatic {
 122                         get {
 123                                 return (Attributes & MethodAttributes.Static) != 0;
 124                         }
 125                 }
 126                 public Boolean IsFinal {
 127                         get {
 128                                 return (Attributes & MethodAttributes.Final) != 0;
 129                         }
 130                 }
 131                 public Boolean IsVirtual {
 132                         get {
 133                                 return (Attributes & MethodAttributes.Virtual) != 0;
 134                         }
 135                 }
 136                 public Boolean IsHideBySig {
 137                         get {
 138                                 return (Attributes & MethodAttributes.HideBySig) != 0;
 139                         }
 140                 }
 141                 public Boolean IsAbstract {
 142                         get {
 143                                 return (Attributes & MethodAttributes.Abstract) != 0;
 144                         }
 145                 }
 146                 public Boolean IsSpecialName {
 147                         get {
 148                                 int attr = (int)Attributes;
 149                                 return (attr & (int)MethodAttributes.SpecialName) != 0;
 150                         }
 151                 }
 152                 public Boolean IsConstructor {
 153                         get {
 154                                 int attr = (int)Attributes;
 155                                 return ((attr & (int)MethodAttributes.RTSpecialName) != 0
 156                                         && (Name == ".ctor"));
 157                         }
 158                 }
 159
 160                 internal virtual int get_next_table_index (object obj, int table, bool inc) {
 161                         if (this is MethodBuilder) {
 162                                 MethodBuilder mb = (MethodBuilder)this;
 163                                 return mb.get_next_table_index (obj, table, inc);
 164                         }
 165                         if (this is ConstructorBuilder) {
 166                                 ConstructorBuilder mb = (ConstructorBuilder)this;
 167                                 return mb.get_next_table_index (obj, table, inc);
 168                         }
 169                         throw new Exception ("Method is not a builder method");
 170                 }
 171
 172 #if NET_2_0 || BOOTSTRAP_NET_2_0
 173                 public virtual MethodInfo BindGenericParameters (Type [] types)
 174                 {
 175                         throw new NotSupportedException ();
 176                 }
 177
 178                 public virtual Type [] GetGenericArguments ()
 179                 {
 180                         throw new NotSupportedException ();
 181                 }
 182
 183                 public virtual MethodInfo GetGenericMethodDefinition ()
 184                 {
 185                         throw new NotSupportedException ();
 186                 }
 187
 188                 public virtual bool Mono_IsInflatedMethod {
 189                         get {
 190                                 throw new NotSupportedException ();
 191                         }
 192                 }
 193
 194                 public virtual bool HasGenericParameters {
 195                         get {
 196                                 throw new NotSupportedException ();
 197                         }
 198                 }
 199
 200                 public virtual bool IsGenericMethodDefinition {
 201                         get {
 202                                 throw new NotSupportedException ();
 203                         }
 204                 }
 205 #endif
 206         }
 207 }