151     def xUpcast(cls, value):  function
197     attr.setdefault('xUpcast', xUpcast)
615         def xUpcast(cls, value):  member in SBValue
678             SBValue.xUpcast(v)
734                 SBValue.xUpcast(v)
743             SBValue.xUpcast(v)
761             SBValue.xUpcast(v)
1065             SBValue.xUpcast(v)
1075             SBValue.xUpcast(v)
1085             SBValue.xUpcast(v)
1212         UPCASTS[base] = cls.xUpcast