[C#/.NET] c# Clone深拷贝方法

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/// 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.
///
public static class ObjectCopier
{
    ///
    /// Perform a deep Copy of the object.
    ///
    /// The type of object being copied.
    /// The object instance to copy.
    /// The copied object.
    public static T Clone(this T source)
    {
       if (!typeof(T).IsSerializable)
       {
           throw new ArgumentException("The type must be serializable.", "source");
       }

       // Don't serialize a null object, simply return the default for that object
       if (Object.ReferenceEquals(source, null))
       {
           return default(T);
       }

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