class RPNCalculator::Result::Input

Public Class Methods

new() click to toggle source
# File lib/rpn-calculator/result/input.rb, line 4
def initialize
  raise 'Can not instantiate abstract class'
end

Public Instance Methods

error() click to toggle source
# File lib/rpn-calculator/result/input.rb, line 12
def error
  raise 'must implement in subclass'
end
result() click to toggle source
# File lib/rpn-calculator/result/input.rb, line 16
def result
  raise 'must implement in subclass'
end
valid?() click to toggle source
# File lib/rpn-calculator/result/input.rb, line 8
def valid?
  raise 'must implement in subclass'
end