3 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
5 // Permission is hereby granted, free of charge, to any person obtaining
6 // a copy of this software and associated documentation files (the
7 // "Software"), to deal in the Software without restriction, including
8 // without limitation the rights to use, copy, modify, merge, publish,
9 // distribute, sublicense, and/or sell copies of the Software, and to
10 // permit persons to whom the Software is furnished to do so, subject to
11 // the following conditions:
13 // The above copyright notice and this permission notice shall be
14 // included in all copies or substantial portions of the Software.
16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 // System.Reflection.Emit/ParameterBuilder.cs
30 // Paolo Molaro (lupus@ximian.com)
32 // (C) 2001 Ximian, Inc. http://www.ximian.com
37 using System.Reflection;
38 using System.Reflection.Emit;
39 using System.Globalization;
40 using System.Runtime.CompilerServices;
41 using System.Runtime.InteropServices;
43 namespace System.Reflection.Emit {
45 [ComDefaultInterface (typeof (_ParameterBuilder))]
46 [ClassInterface (ClassInterfaceType.None)]
47 [StructLayout (LayoutKind.Sequential)]
48 public class ParameterBuilder : _ParameterBuilder {
50 #pragma warning disable 169, 414
51 private MethodBase methodb; /* MethodBuilder, ConstructorBuilder or DynamicMethod */
53 private CustomAttributeBuilder[] cattrs;
54 private UnmanagedMarshal marshal_info;
55 private ParameterAttributes attrs;
57 private int table_idx;
59 #pragma warning restore 169, 414
61 internal ParameterBuilder (MethodBase mb, int pos, ParameterAttributes attributes, string strParamName) {
66 if (mb is DynamicMethod)
69 table_idx = mb.get_next_table_index (this, 0x08, true);
72 public virtual int Attributes {
73 get {return (int)attrs;}
76 get {return ((int)attrs & (int)ParameterAttributes.In) != 0;}
79 get {return ((int)attrs & (int)ParameterAttributes.Out) != 0;}
81 public bool IsOptional {
82 get {return ((int)attrs & (int)ParameterAttributes.Optional) != 0;}
84 public virtual string Name {
87 public virtual int Position {
88 get {return position;}
91 public virtual ParameterToken GetToken() {
92 return new ParameterToken (0x08 | table_idx);
95 public virtual void SetConstant (object defaultValue)
98 Type t = methodb.GetParameterType (position - 1);
99 if (defaultValue != null && t != defaultValue.GetType ()) {
100 if(!t.IsEnum || t.UnderlyingSystemType != defaultValue.GetType ())
101 throw new ArgumentException ("Constant does not match the defined type.");
103 if (t.IsValueType && !t.IsPrimitive && !t.IsEnum && t != typeof (DateTime))
104 throw new ArgumentException ("" + t + " is not a supported constant type.");
107 def_value = defaultValue;
108 attrs |= ParameterAttributes.HasDefault;
111 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
112 string attrname = customBuilder.Ctor.ReflectedType.FullName;
113 if (attrname == "System.Runtime.InteropServices.InAttribute") {
114 attrs |= ParameterAttributes.In;
116 } else if (attrname == "System.Runtime.InteropServices.OutAttribute") {
117 attrs |= ParameterAttributes.Out;
119 } else if (attrname == "System.Runtime.InteropServices.OptionalAttribute") {
120 attrs |= ParameterAttributes.Optional;
122 } else if (attrname == "System.Runtime.InteropServices.MarshalAsAttribute") {
123 attrs |= ParameterAttributes.HasFieldMarshal;
124 marshal_info = CustomAttributeBuilder.get_umarshal (customBuilder, false);
125 /* FIXME: check for errors */
127 } else if (attrname == "System.Runtime.InteropServices.DefaultParameterValueAttribute") {
128 /* MS.NET doesn't handle this attribute but we handle it for consistency */
129 CustomAttributeBuilder.CustomAttributeInfo cinfo = CustomAttributeBuilder.decode_cattr (customBuilder);
130 /* FIXME: check for type compatibility */
131 SetConstant (cinfo.ctorArgs [0]);
135 if (cattrs != null) {
136 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
137 cattrs.CopyTo (new_array, 0);
138 new_array [cattrs.Length] = customBuilder;
141 cattrs = new CustomAttributeBuilder [1];
142 cattrs [0] = customBuilder;
147 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
148 SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
151 [Obsolete ("An alternate API is available: Emit the MarshalAs custom attribute instead.")]
152 public virtual void SetMarshal( UnmanagedMarshal unmanagedMarshal) {
153 marshal_info = unmanagedMarshal;
154 attrs |= ParameterAttributes.HasFieldMarshal;
157 void _ParameterBuilder.GetIDsOfNames([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
159 throw new NotImplementedException ();
162 void _ParameterBuilder.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
164 throw new NotImplementedException ();
167 void _ParameterBuilder.GetTypeInfoCount (out uint pcTInfo)
169 throw new NotImplementedException ();
172 void _ParameterBuilder.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams, IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
174 throw new NotImplementedException ();