Bottom-up visitor, recursive.
Visiting a node calls its methods (provided by the user via inheritance) according to ``tree.data``
Slightly faster than the non-recursive version.Visits the tree, starting with the leaves and finally the root (bottom-up)
Visits the tree, starting with the leaves and finally the root (bottom-up)
Visit the tree, starting at the root, and ending at the leaves (top-down)
Bottom-up visitor, recursive.
Visiting a node calls its methods (provided by the user via inheritance) according to ``tree.data``
Slightly faster than the non-recursive version.Visits the tree, starting with the leaves and finally the root (bottom-up)
Visits the tree, starting with the leaves and finally the root (bottom-up)
Visit the tree, starting at the root, and ending at the leaves (top-down)