class SubNode

Public Class Methods

new(left, right) click to toggle source
Calls superclass method BinaryNode::new
# File lib/ast.rb, line 31
def initialize(left, right)
  super(left,right)
end

Public Instance Methods

evaluate() click to toggle source
# File lib/ast.rb, line 35
def evaluate() 
  return @left.evaluate() - @right.evaluate()
end