def handle_node_description(self, child_node):
"""Replaces an anonymous node description with a reference to a fresh node variable.
The node description is stored for later reference.
"""
variable = NodeVariable(self.get_anon_nodevar(), False)
self.node_defs[variable] = child_node
self.node_vars[variable.name] = variable
return self.REPLACE(create_varref(variable.name))
def _pad_nodesets(self):
if all(var.is_set for var in self._node_vars):
self._node_cursors.append(
(NodeVariable("", False),
self._query_compiler.get_padding_cursor(), self._node_tips))
