19 # Generate a decoding tree from a specification file.
712 class Tree:  class
713     """Class representing a node in a decode tree"""
776 # end Tree
783         # Defer everything to our decomposed Tree node
784         self.tree.output_code(i, extracted, outerbits, outermask)
796                 t = Tree(outermask, innermask)
818         t = Tree(fullmask, innermask)
830         self.tree = self.__build_tree(self.pats, self.fixedbits,
834     def __prop_format(tree):  argument
835         """Propagate Format objects into the decode tree"""
838         for (b, s) in tree.subs:
839             if isinstance(s, Tree):
843         # propagate that into the tree.
845         for (b, s) in tree.subs:
852         tree.base = f
856         self.__prop_format(self.tree)
1343     """Class representing a node in a size decode tree"""
1402     """Class representing a leaf node in a size decode tree"""
1479 def prop_size(tree):  argument
1480     """Propagate minimum widths up the decode size tree"""
1482     if isinstance(tree, SizeTree):
1484         for (b, s) in tree.subs:
1488         assert min >= tree.width
1489         tree.width = min
1491         min = tree.width