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//
// MemberReference.cs
//
// Author:
// Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
//
// Copyright (c) 2016 jp
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Linq;
using System.Reflection;
namespace Crow
{
/// <summary>
/// link MemberInfo and instance in one class
/// </summary>
public class MemberReference
{
public object Instance;
public MemberInfo Member;
public PropertyInfo Property { get { return Member as PropertyInfo; } }
public FieldInfo Field { get { return Member as FieldInfo; } }
public EventInfo Event { get { return Member as EventInfo; } }
public MethodInfo Method { get { return Member as MethodInfo; } }
#region CTOR
public MemberReference () {}
public MemberReference (object _instance, MemberInfo _member = null)
{
Instance = _instance;
Member = _member;
}
#endregion
/// <summary>
/// Try to find member by name in instance class or, if not found,
/// in extension methods
/// </summary>
/// <returns>True if found, false otherwise</returns>
/// <param name="_memberName">Member name to search for</param>
public bool TryFindMember (string _memberName)
{
if (Instance == null)
return false;
Type t = Instance.GetType ();
Member = t.GetMember (_memberName, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance).FirstOrDefault ();
#region search for extensions methods if member not found in type
if (Member == null && !string.IsNullOrEmpty (_memberName)) {
Assembly a = Assembly.GetExecutingAssembly ();
Member = CompilerServices.GetExtensionMethods (a, t).Where (em => em.Name == _memberName).FirstOrDefault ();
}
#endregion
return Member != null;
}
public override string ToString ()
{
return string.Format ("{0}.{1}", Instance, Member);
}
}
}
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