Sha256: 9457ad0a5f0fdb0d4ebb98ed89fefe1befdd5f28f3328d99d43b839b98a00f19
Contents?: true
Size: 986 Bytes
Versions: 10
Compression:
Stored size: 986 Bytes
Contents
# -*- coding: utf-8 -*-
module TreeRb
#
# Clone a tree_node, nodes are duplicated.
# Node content are not duplicated!
#
class CloneTreeNodeVisitor # < BasicTreeNodeVisitor
#
# Contains the cloned tree node after the visit
#
attr_reader :cloned_root
def initialize
super
@cloned_root = nil
@stack = []
end
def enter_node( tree_node )
if @stack.empty?
cloned_tree_node = TreeNode.new( tree_node.content )
@cloned_root = cloned_tree_node
else
cloned_tree_node = TreeNode.new( tree_node.content, @stack.last )
end
@stack.push( cloned_tree_node )
end
def exit_node( tree_node )
@stack.pop
end
#
# called when the tree node is not accessible or an exception is raise when the node is accessed
#
def cannot_enter_node( tree_node, error)
end
def visit_leaf( leaf_node )
LeafNode.new( leaf_node.content, @stack.last )
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems