System.Linq.Expressions.Expression.FindMethod C# (CSharp) Method

        private static MethodInfo FindMethod(Type type, string methodName, Type[] typeArgs, Expression[] args, BindingFlags flags)
        {
            int count = 0;
            MethodInfo method = null;

            foreach (MethodInfo mi in type.GetMethods(flags))
            {
                if (mi.Name.Equals(methodName, StringComparison.OrdinalIgnoreCase))
                {
                    MethodInfo moo = ApplyTypeArgs(mi, typeArgs);
                    if (moo != null && IsCompatible(moo, args))
                    {
                        // favor public over non-public methods
                        if (method == null || (!method.IsPublic && moo.IsPublic))
                        {
                            method = moo;
                            count = 1;
                        }
                        // only count it as additional method if they both public or both non-public
                        else if (method.IsPublic == moo.IsPublic)
                        {
                            count++;
                        }
                    }
                }
            }

            if (count == 0)
            {
                if (typeArgs != null && typeArgs.Length > 0)
                {
                    throw Error.GenericMethodWithArgsDoesNotExistOnType(methodName, type);
                }
                else
                {
                    throw Error.MethodWithArgsDoesNotExistOnType(methodName, type);
                }
            }

            if (count > 1)
                throw Error.MethodWithMoreThanOneMatch(methodName, type);

            return method;
        }