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//
// GuidAttribute.cs
//
// Author:
// Jb Evain (jbevain@gmail.com)
//
// (C) 2006 Jb Evain
//
// 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.
//
namespace Mono.Cecil.Cil {
using System;
using System.Reflection;
[AttributeUsage (AttributeTargets.Field)]
public class GuidAttribute : Attribute {
private Guid m_guid;
public Guid Guid {
get { return m_guid; }
}
GuidAttribute ()
{
m_guid = new Guid ();
}
public GuidAttribute (
uint a,
ushort b,
ushort c,
byte d,
byte e,
byte f,
byte g,
byte h,
byte i,
byte j,
byte k)
{
m_guid = new Guid ((int) a, (short) b, (short) c, d, e, f, g, h, i, j, k);
}
public static int GetValueFromGuid (Guid id, Type enumeration)
{
foreach (FieldInfo fi in enumeration.GetFields (BindingFlags.Static | BindingFlags.Public))
if (id == GetGuidAttribute (fi).Guid)
return (int) fi.GetValue (null);
return -1;
}
public static Guid GetGuidFromValue (int value, Type enumeration)
{
foreach (FieldInfo fi in enumeration.GetFields (BindingFlags.Static | BindingFlags.Public))
if (value == (int) fi.GetValue (null))
return GetGuidAttribute (fi).Guid;
return new Guid ();
}
static GuidAttribute GetGuidAttribute (FieldInfo fi)
{
GuidAttribute [] attributes = fi.GetCustomAttributes (typeof (GuidAttribute), false) as GuidAttribute [];
if (attributes == null || attributes.Length != 1)
return new GuidAttribute ();
return attributes [0];
}
}
}
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