using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace HandBrake.ApplicationServices.Utilities
{
    using System.Linq.Expressions;
    using System.Reflection;

    public static class ExtensionMethods
    {
        /// <summary>
        /// Converts an expression into a <see cref="MemberInfo"/>.
        /// </summary>
        /// <param name="expression">The expression to convert.</param>
        /// <returns>The member info.</returns>
        public static MemberInfo GetMemberInfo(this Expression expression)
        {
            var lambda = (LambdaExpression)expression;

            MemberExpression memberExpression;
            if (lambda.Body is UnaryExpression)
            {
                var unaryExpression = (UnaryExpression)lambda.Body;
                memberExpression = (MemberExpression)unaryExpression.Operand;
            }
            else
                memberExpression = (MemberExpression)lambda.Body;

            return memberExpression.Member;
        }

    }
}