/// <summary>
/// Constructor.
/// </summary>
/// <param name="portables">Portables.</param>
/// <param name="parent">Parent builder.</param>
/// <param name="obj">Initial portable object.</param>
/// <param name="desc">Type descriptor.</param>
public PortableBuilderImpl(PortablesImpl portables, PortableBuilderImpl parent,
PortableUserObject obj, IPortableTypeDescriptor desc)
{
_portables = portables;
_parent = parent ?? this;
_obj = obj;
_desc = desc;
_hashCode = obj.GetHashCode();
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="portables">Portables.</param>
/// <param name="obj">Initial portable object.</param>
/// <param name="desc">Type descriptor.</param>
public PortableBuilderImpl(PortablesImpl portables, PortableUserObject obj,
IPortableTypeDescriptor desc) : this(portables, null, obj, desc)
{
// No-op.
}