System.Reflection.Binder.Default.SelectMethod C# (CSharp) Method

			MethodBase SelectMethod (BindingFlags bindingAttr, MethodBase[] match, Type[] types, ParameterModifier[] modifiers, bool allowByRefMatch)
			{
				MethodBase m;
				int i, j;

				if (match == null)
					throw new ArgumentNullException ("match");

				/* first look for an exact match... */
				for (i = 0; i < match.Length; ++i) {
					m = match [i];
					ParameterInfo[] args = m.GetParameters ();
					if (args.Length != types.Length)
						continue;
					for (j = 0; j < types.Length; ++j) {
						if (types [j] != args [j].ParameterType)
							break;
					}
					if (j == types.Length)
						return m;
				}

				/* Try methods with ParamArray attribute */
				bool isdefParamArray = false;
				Type elementType = null;
				for (i = 0; i < match.Length; ++i) {
					m = match [i];
					ParameterInfo[] args = m.GetParameters ();
					if (args.Length > types.Length)
						continue;
					else if (args.Length == 0)
						continue;
					isdefParamArray = Attribute.IsDefined (args [args.Length - 1], typeof (ParamArrayAttribute));
					if (!isdefParamArray)
						continue;
					elementType = args [args.Length - 1].ParameterType.GetElementType ();
					for (j = 0; j < types.Length; ++j) {
						if (j < (args.Length - 1) && types [j] != args [j].ParameterType)
							break;
						else if (j >= (args.Length - 1) && types [j] != elementType) 
							break;
					}
					if (j == types.Length)
						return m;
				}

				if ((int)(bindingAttr & BindingFlags.ExactBinding) != 0)
					return null;

				MethodBase result = null;
				for (i = 0; i < match.Length; ++i) {
					m = match [i];
					ParameterInfo[] args = m.GetParameters ();
					if (args.Length != types.Length)
						continue;
					if (!check_arguments (types, args, allowByRefMatch))
						continue;

					if (result != null)
						result = GetBetterMethod (result, m, types);
					else
						result = m;
				}

				return result;
			}