def as_cfacet ( self, original_facet ):
""" Returns the low-level C-based facet for this FacetValue.
"""
notifiers = original_facet._notifiers( 0 )
if self._cfacet is not None:
if (notifiers is None) or (len( notifiers ) == 0):
return self._cfacet
facet = CFacet( 0 )
facet.clone( self._cfacet )
else:
facet = self._as_cfacet( original_facet )
if ((facet is not None) and
(notifiers is not None) and
(len( notifiers ) > 0)):
facet._notifiers( 1 ).extend( notifiers )
return facet
