Class: DepthTreeNodeVisitor

Inherits:
TreeNodeVisitor show all
Defined in:
lib/treevisitor/visitors/depth_tree_node_visitor.rb

Overview

Simple visitor: show how calculate the depth of a tree

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DepthTreeNodeVisitor

Returns a new instance of DepthTreeNodeVisitor.



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# File 'lib/treevisitor/visitors/depth_tree_node_visitor.rb', line 8

def initialize
  super
  @depth = 0
end

Instance Attribute Details

#depth ⇒ Object (readonly)

Returns the value of attribute depth.



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# File 'lib/treevisitor/visitors/depth_tree_node_visitor.rb', line 6

def depth
  @depth
end

Instance Method Details

#enter_tree_node(tree_node) ⇒ Object 



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# File 'lib/treevisitor/visitors/depth_tree_node_visitor.rb', line 13

def enter_tree_node( tree_node )
  @depth += 1
end

#exit_tree_node(tree_node) ⇒ Object 



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# File 'lib/treevisitor/visitors/depth_tree_node_visitor.rb', line 17

def exit_tree_node( tree_node )
  @depth -= 1
end

#visit_leaf_node(leaf_node) ⇒ Object 



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# File 'lib/treevisitor/visitors/depth_tree_node_visitor.rb', line 21

def visit_leaf_node( leaf_node )
end