Class: CloneTreeNodeVisitor

Inherits:
TreeNodeVisitor show all
Defined in:
lib/tree_visitor/tree_node_visitor.rb

Overview

Esempio Clona un TreeNode

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CloneTreeNodeVisitor

Returns a new instance of CloneTreeNodeVisitor.



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# File 'lib/tree_visitor/tree_node_visitor.rb', line 137

def initialize
  super
  @clonedRoot = nil
  @stack = []
end

Instance Attribute Details

#clonedRoot ⇒ Object (readonly)

Returns the value of attribute clonedRoot.



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# File 'lib/tree_visitor/tree_node_visitor.rb', line 135

def clonedRoot
  @clonedRoot
end

Instance Method Details

#enter_treeNode(treeNode) ⇒ Object 



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# File 'lib/tree_visitor/tree_node_visitor.rb', line 143

def enter_treeNode( treeNode )
  if @stack.empty?
    clonedTreeNode = TreeNode.new( treeNode.name )
    @clonedRoot = clonedTreeNode
  else
    clonedTreeNode = TreeNode.new( treeNode.name, @stack.last )
  end
  @stack.push( clonedTreeNode )
end

#exit_treeNode(treeNode) ⇒ Object 



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# File 'lib/tree_visitor/tree_node_visitor.rb', line 153

def exit_treeNode( treeNode )
  @stack.pop
end

#visit_leafNode(leafNode) ⇒ Object 



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# File 'lib/tree_visitor/tree_node_visitor.rb', line 157

def visit_leafNode( leafNode )
  clonedLeafNode = LeafNode.new( leafNode.name, @stack.last )
end