Class: RPNCalculator::Result::Input

Inherits:
Object
  • Object
show all
Defined in:
lib/rpn-calculator/result/input.rb

Direct Known Subclasses

Parser, Processor, Validator

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Input

Returns a new instance of Input.



4
5
6
 
# File 'lib/rpn-calculator/result/input.rb', line 4

def initialize
  raise 'Can not instantiate abstract class'
end

Instance Method Details

#error ⇒ Object 



12
13
14
 
# File 'lib/rpn-calculator/result/input.rb', line 12

def error
  raise 'must implement in subclass'
end

#result ⇒ Object 



16
17
18
 
# File 'lib/rpn-calculator/result/input.rb', line 16

def result
  raise 'must implement in subclass'
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


8
9
10
 
# File 'lib/rpn-calculator/result/input.rb', line 8

def valid?
  raise 'must implement in subclass'
end