422         def visitor(tree, parent, childIndex, labels):  argument
513         def rootvisitor(tree, parent, childIndex, labels):  argument
514             labels = {}
515             if self._parse(tree, tpattern, labels):
516                 visitor(tree, parent, childIndex, labels)
521     def parse(self, t, pattern, labels=None):  argument
537         return self._parse(t, tpattern, labels)
540     def _parse(self, t1, tpattern, labels):  argument
562         if tpattern.label is not None and labels is not None:
564             labels[tpattern.label] = t1
575             if not self._parse(child1, child2, labels):