1 // System.Reflection.ParameterInfo
4 // Sean MacIsaac (macisaac@ximian.com)
5 // Marek Safar (marek.safar@gmail.com)
7 // (C) 2001 Ximian, Inc.
8 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
9 // Copyright 2013 Xamarin, Inc (http://www.xamarin.com)
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 using System.Reflection.Emit;
34 using System.Runtime.CompilerServices;
35 using System.Runtime.InteropServices;
36 using System.Collections.Generic;
39 namespace System.Reflection
42 [ComDefaultInterfaceAttribute (typeof (_ParameterInfo))]
44 [ClassInterfaceAttribute (ClassInterfaceType.None)]
45 [StructLayout (LayoutKind.Sequential)]
47 public partial class ParameterInfo : ICustomAttributeProvider {
49 public partial class ParameterInfo : ICustomAttributeProvider, _ParameterInfo {
52 protected Type ClassImpl;
53 protected object DefaultValueImpl;
54 protected MemberInfo MemberImpl;
55 protected string NameImpl;
56 protected int PositionImpl;
57 protected ParameterAttributes AttrsImpl;
58 internal MarshalAsAttribute marshalAs;
60 protected ParameterInfo () {
63 public override string ToString() {
64 Type elementType = ClassImpl;
65 while (elementType.HasElementType) {
66 elementType = elementType.GetElementType();
68 bool useShort = elementType.IsPrimitive || ClassImpl == typeof(void)
69 || ClassImpl.Namespace == MemberImpl.DeclaringType.Namespace;
70 string result = useShort
73 // MS.NET seems to skip this check and produce an extra space for return types
81 internal static void FormatParameters (StringBuilder sb, ParameterInfo[] p)
83 for (int i = 0; i < p.Length; ++i) {
87 Type pt = p[i].ParameterType;
88 bool byref = pt.IsByRef;
90 pt = pt.GetElementType ();
92 if (Type.ShouldPrintFullName (pt))
93 sb.Append (pt.ToString ());
102 public virtual Type ParameterType {
103 get {return ClassImpl;}
105 public virtual ParameterAttributes Attributes {
106 get {return AttrsImpl;}
111 return (Attributes & ParameterAttributes.In) != 0;
117 return (Attributes & ParameterAttributes.Lcid) != 0;
121 public bool IsOptional {
123 return (Attributes & ParameterAttributes.Optional) != 0;
129 return (Attributes & ParameterAttributes.Out) != 0;
133 public bool IsRetval {
135 return (Attributes & ParameterAttributes.Retval) != 0;
139 public virtual MemberInfo Member {
140 get {return MemberImpl;}
143 public virtual string Name {
144 get {return NameImpl;}
147 public virtual int Position {
148 get {return PositionImpl;}
151 [MethodImplAttribute (MethodImplOptions.InternalCall)]
152 internal extern int GetMetadataToken ();
154 internal object[] GetPseudoCustomAttributes () {
163 if (marshalAs != null)
168 object[] attrs = new object [count];
172 attrs [count ++] = new InAttribute ();
174 attrs [count ++] = new OptionalAttribute ();
176 attrs [count ++] = new OutAttribute ();
178 if (marshalAs != null)
179 attrs [count ++] = marshalAs.Copy ();
184 [MethodImplAttribute (MethodImplOptions.InternalCall)]
185 internal extern Type[] GetTypeModifiers (bool optional);
187 internal object GetDefaultValueImpl ()
189 return DefaultValueImpl;
193 public virtual IEnumerable<CustomAttributeData> CustomAttributes {
194 get { return GetCustomAttributesData (); }
197 public virtual bool HasDefaultValue {
198 get { throw new NotImplementedException (); }
203 void _ParameterInfo.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
205 throw new NotImplementedException ();
208 void _ParameterInfo.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
210 throw new NotImplementedException ();
213 void _ParameterInfo.GetTypeInfoCount (out uint pcTInfo)
215 throw new NotImplementedException ();
218 void _ParameterInfo.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams,
219 IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
221 throw new NotImplementedException ();
226 public virtual object DefaultValue {
227 get { throw new NotImplementedException (); }
230 public virtual object RawDefaultValue {
231 get { throw new NotImplementedException (); }
234 public virtual int MetadataToken {
235 get { return 0x8000000; }
238 public virtual object[] GetCustomAttributes (bool inherit)
240 return new object [0];
243 public virtual object[] GetCustomAttributes (Type attributeType, bool inherit)
245 return new object [0];
248 public virtual bool IsDefined( Type attributeType, bool inherit) {
252 public virtual Type[] GetRequiredCustomModifiers () {
256 public virtual Type[] GetOptionalCustomModifiers () {
260 public virtual IList<CustomAttributeData> GetCustomAttributesData () {
261 throw new NotImplementedException ();
265 #if !FULL_AOT_RUNTIME
266 internal static ParameterInfo New (ParameterBuilder pb, Type type, MemberInfo member, int position)
269 return new MonoParameterInfo (pb, type, member, position);
271 return new ParameterInfo (pb, type, member, position);
276 internal static ParameterInfo New (ParameterInfo pinfo, Type type, MemberInfo member, int position)
279 return new MonoParameterInfo (pinfo, type, member, position);
281 return new ParameterInfo (pinfo, type, member, position);
285 internal static ParameterInfo New (ParameterInfo pinfo, MemberInfo member)
288 return new MonoParameterInfo (pinfo, member);
290 return new ParameterInfo (pinfo, member);
294 internal static ParameterInfo New (Type type, MemberInfo member, MarshalAsAttribute marshalAs)
297 return new MonoParameterInfo (type, member, marshalAs);
299 return new ParameterInfo (type, member, marshalAs);