2 // System.Reflection/MethodBase.cs
5 // Paolo Molaro (lupus@ximian.com)
7 // (C) 2001 Ximian, Inc. http://www.ximian.com
8 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
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:
18 // The above copyright notice and this permission notice shall be
19 // included in all copies or substantial portions of the Software.
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.
30 using System.Diagnostics;
31 using System.Globalization;
32 using System.Reflection.Emit;
33 using System.Runtime.CompilerServices;
34 using System.Runtime.InteropServices;
36 namespace System.Reflection {
40 [ComDefaultInterfaceAttribute (typeof (_MethodBase))]
43 [ClassInterface(ClassInterfaceType.None)]
44 public abstract class MethodBase: MemberInfo, _MethodBase {
46 [MethodImplAttribute (MethodImplOptions.InternalCall)]
47 public extern static MethodBase GetCurrentMethod ();
49 internal static MethodBase GetMethodFromHandleNoGenericCheck (RuntimeMethodHandle handle) {
50 if (handle.Value == IntPtr.Zero)
51 throw new ArgumentException ("The handle is invalid.");
52 MethodBase res = GetMethodFromHandleInternalType (handle.Value, IntPtr.Zero);
54 throw new ArgumentException ("The handle is invalid.");
58 public static MethodBase GetMethodFromHandle(RuntimeMethodHandle handle) {
59 MethodBase res = GetMethodFromHandleNoGenericCheck (handle);
61 Type t = res.DeclaringType;
62 if (t.IsGenericType || t.IsGenericTypeDefinition)
63 throw new ArgumentException ("Cannot resolve method because it's declared in a generic class.");
68 [MethodImplAttribute (MethodImplOptions.InternalCall)]
69 private extern static MethodBase GetMethodFromHandleInternalType (IntPtr method_handle, IntPtr type_handle);
71 #if NET_2_0 || BOOTSTRAP_NET_2_0
73 public static MethodBase GetMethodFromHandle(RuntimeMethodHandle handle, RuntimeTypeHandle declaringType)
75 if (handle.Value == IntPtr.Zero)
76 throw new ArgumentException ("The handle is invalid.");
77 MethodBase res = GetMethodFromHandleInternalType (handle.Value, declaringType.Value);
79 throw new ArgumentException ("The handle is invalid.");
84 public abstract MethodImplAttributes GetMethodImplementationFlags();
86 public abstract ParameterInfo[] GetParameters();
89 // This is a quick version for our own use. We should override
90 // it where possible so that it does not allocate an array.
92 internal virtual int GetParameterCount ()
94 ParameterInfo [] pi = GetParameters ();
102 public new Type GetType ()
104 return base.GetType ();
109 [DebuggerStepThrough]
110 public Object Invoke(Object obj, Object[] parameters) {
111 return Invoke (obj, 0, null, parameters, null);
114 public abstract Object Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture);
116 protected MethodBase()
120 public abstract RuntimeMethodHandle MethodHandle { get; }
121 public abstract MethodAttributes Attributes { get; }
122 public virtual CallingConventions CallingConvention { get {return CallingConventions.Standard;} }
123 public Boolean IsPublic {
125 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Public;
128 public Boolean IsPrivate {
130 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Private;
133 public Boolean IsFamily {
135 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Family;
138 public Boolean IsAssembly {
140 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.Assembly;
143 public Boolean IsFamilyAndAssembly {
145 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.FamANDAssem;
148 public Boolean IsFamilyOrAssembly {
150 return (Attributes & MethodAttributes.MemberAccessMask) == MethodAttributes.FamORAssem;
153 public Boolean IsStatic {
155 return (Attributes & MethodAttributes.Static) != 0;
158 public Boolean IsFinal {
160 return (Attributes & MethodAttributes.Final) != 0;
163 public Boolean IsVirtual {
165 return (Attributes & MethodAttributes.Virtual) != 0;
168 public Boolean IsHideBySig {
170 return (Attributes & MethodAttributes.HideBySig) != 0;
173 public Boolean IsAbstract {
175 return (Attributes & MethodAttributes.Abstract) != 0;
178 public Boolean IsSpecialName {
180 int attr = (int)Attributes;
181 return (attr & (int)MethodAttributes.SpecialName) != 0;
184 [ComVisibleAttribute (true)]
185 public Boolean IsConstructor {
187 int attr = (int)Attributes;
188 return ((attr & (int)MethodAttributes.RTSpecialName) != 0
189 && (Name == ".ctor"));
193 internal virtual int get_next_table_index (object obj, int table, bool inc) {
194 if (this is MethodBuilder) {
195 MethodBuilder mb = (MethodBuilder)this;
196 return mb.get_next_table_index (obj, table, inc);
198 if (this is ConstructorBuilder) {
199 ConstructorBuilder mb = (ConstructorBuilder)this;
200 return mb.get_next_table_index (obj, table, inc);
202 throw new Exception ("Method is not a builder method");
205 #if NET_2_0 || BOOTSTRAP_NET_2_0
207 public virtual Type [] GetGenericArguments ()
209 throw new NotSupportedException ();
212 public virtual bool ContainsGenericParameters {
218 public virtual bool IsGenericMethodDefinition {
224 public virtual bool IsGenericMethod {
232 [MethodImplAttribute (MethodImplOptions.InternalCall)]
233 internal extern static MethodBody GetMethodBodyInternal (IntPtr handle);
235 internal static MethodBody GetMethodBody (IntPtr handle) {
236 return GetMethodBodyInternal (handle);
239 public virtual MethodBody GetMethodBody () {
240 throw new NotSupportedException ();
244 void _MethodBase.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
246 throw new NotImplementedException ();
249 void _MethodBase.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
251 throw new NotImplementedException ();
254 void _MethodBase.GetTypeInfoCount (out uint pcTInfo)
256 throw new NotImplementedException ();
259 void _MethodBase.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
261 throw new NotImplementedException ();