using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using PascalABCCompiler.SyntaxTree;

namespace SyntaxVisitors
{
    using System;
    using System.IO;
    using System.Runtime.Serialization;
    using System.Runtime.Serialization.Formatters.Binary;

    /// <summary>
    /// Reference Article http://www.codeproject.com/KB/tips/SerializedObjectCloner.aspx
    /// Provides a method for performing a deep copy of an object.
    /// Binary Serialization is used to perform the copy.
    /// </summary>
    public static class ObjectCopier
    {
        /// <summary>
        /// Perform a deep Copy of the object.
        /// </summary>
        /// <typeparam className="T">The type of object being copied.</typeparam>
        /// <param className="source">The object instance to copy.</param>
        /// <returns>The copied object.</returns>
        public static T Clone<T>(T source)
            where T: syntax_tree_node
        {
            if (Object.ReferenceEquals(source, null))
            {
                return default(T);
            }

            /*if (!typeof(T).IsSerializable)
            {
                throw new ArgumentException("The type must be serializable.", "source");
            }

            IFormatter formatter = new BinaryFormatter();
            Stream stream = new MemoryStream();
            using (stream)
            {
                formatter.Serialize(stream, source);
                stream.Seek(0, SeekOrigin.Begin);
                return (T)formatter.Deserialize(stream);
            }*/
            return (T)source.Clone();
        }
    }
}