216 lines
6.1 KiB
C#
Raw Normal View History

//
// System.Reflection/CustomAttributeData.cs
//
// Author:
// Zoltan Varga (vargaz@gmail.com)
// Carlos Alberto Cortez (calberto.cortez@gmail.com)
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
namespace System.Reflection {
[ComVisible (true)]
[Serializable]
public
class CustomAttributeData {
class LazyCAttrData {
internal Assembly assembly;
internal IntPtr data;
internal uint data_length;
}
ConstructorInfo ctorInfo;
IList<CustomAttributeTypedArgument> ctorArgs;
IList<CustomAttributeNamedArgument> namedArgs;
LazyCAttrData lazyData;
protected CustomAttributeData ()
{
}
internal CustomAttributeData (ConstructorInfo ctorInfo, Assembly assembly, IntPtr data, uint data_length)
{
this.ctorInfo = ctorInfo;
this.lazyData = new LazyCAttrData ();
this.lazyData.assembly = assembly;
this.lazyData.data = data;
this.lazyData.data_length = data_length;
}
[MethodImplAttribute (MethodImplOptions.InternalCall)]
static extern void ResolveArgumentsInternal (ConstructorInfo ctor, Assembly assembly, IntPtr data, uint data_length, out object[] ctorArgs, out object[] namedArgs);
void ResolveArguments ()
{
object[] ctor_args, named_args;
if (lazyData == null)
return;
ResolveArgumentsInternal (ctorInfo, lazyData.assembly, lazyData.data, lazyData.data_length, out ctor_args, out named_args);
this.ctorArgs = Array.AsReadOnly<CustomAttributeTypedArgument>
(ctor_args != null ? UnboxValues<CustomAttributeTypedArgument> (ctor_args) : EmptyArray<CustomAttributeTypedArgument>.Value);
this.namedArgs = Array.AsReadOnly<CustomAttributeNamedArgument>
(named_args != null ? UnboxValues<CustomAttributeNamedArgument> (named_args) : EmptyArray<CustomAttributeNamedArgument>.Value);
lazyData = null;
}
[ComVisible (true)]
public
virtual
ConstructorInfo Constructor {
get {
return ctorInfo;
}
}
[ComVisible (true)]
public
virtual
IList<CustomAttributeTypedArgument> ConstructorArguments {
get {
ResolveArguments ();
return ctorArgs;
}
}
public
virtual
IList<CustomAttributeNamedArgument> NamedArguments {
get {
ResolveArguments ();
return namedArgs;
}
}
public static IList<CustomAttributeData> GetCustomAttributes (Assembly target) {
return MonoCustomAttrs.GetCustomAttributesData (target);
}
public static IList<CustomAttributeData> GetCustomAttributes (MemberInfo target) {
return MonoCustomAttrs.GetCustomAttributesData (target);
}
internal static IList<CustomAttributeData> GetCustomAttributesInternal (RuntimeType target) {
return MonoCustomAttrs.GetCustomAttributesData (target);
}
public static IList<CustomAttributeData> GetCustomAttributes (Module target) {
return MonoCustomAttrs.GetCustomAttributesData (target);
}
public static IList<CustomAttributeData> GetCustomAttributes (ParameterInfo target) {
return MonoCustomAttrs.GetCustomAttributesData (target);
}
public Type AttributeType {
get { return ctorInfo.DeclaringType; }
}
public override string ToString ()
{
ResolveArguments ();
StringBuilder sb = new StringBuilder ();
sb.Append ("[" + ctorInfo.DeclaringType.FullName + "(");
for (int i = 0; i < ctorArgs.Count; i++) {
sb.Append (ctorArgs [i].ToString ());
if (i + 1 < ctorArgs.Count)
sb.Append (", ");
}
if (namedArgs.Count > 0)
sb.Append (", ");
for (int j = 0; j < namedArgs.Count; j++) {
sb.Append (namedArgs [j].ToString ());
if (j + 1 < namedArgs.Count)
sb.Append (", ");
}
sb.AppendFormat (")]");
return sb.ToString ();
}
static T [] UnboxValues<T> (object [] values)
{
T [] retval = new T [values.Length];
for (int i = 0; i < values.Length; i++)
retval [i] = (T) values [i];
return retval;
}
public override bool Equals (object obj)
{
CustomAttributeData other = obj as CustomAttributeData;
if (other == null || other.ctorInfo != ctorInfo ||
other.ctorArgs.Count != ctorArgs.Count ||
other.namedArgs.Count != namedArgs.Count)
return false;
for (int i = 0; i < ctorArgs.Count; i++)
if (ctorArgs [i].Equals (other.ctorArgs [i]))
return false;
for (int i = 0; i < namedArgs.Count; i++) {
bool matched = false;
for (int j = 0; j < other.namedArgs.Count; j++)
if (namedArgs [i].Equals (other.namedArgs [j])) {
matched = true;
break;
}
if (!matched)
return false;
}
return true;
}
public override int GetHashCode ()
{
int ret = ctorInfo == null ? 13 : (ctorInfo.GetHashCode () << 16);
// argument order-dependent
if (ctorArgs != null) {
for (int i = 0; i < ctorArgs.Count; i++) {
ret += ret ^ 7 + ctorArgs [i].GetHashCode () << (i * 4);
}
}
// argument order-independent
if (namedArgs != null) {
for (int i = 0; i < namedArgs.Count; i++)
ret += (namedArgs [i].GetHashCode () << 5);
}
return ret;
}
}
}