Class: RPNCalculator::Result::Validator

Inherits:

Input

• Object
• Input
• RPNCalculator::Result::Validator

Defined in:

lib/rpn-calculator/result/validator.rb

Instance Method Summary

• #error ⇒ Object
• #initialize(invalid_characters = []) ⇒ Validator constructor

  A new instance of Validator.

• #result ⇒ Object
• #valid? ⇒ Boolean

Constructor Details

#initialize(invalid_characters = []) ⇒ Validator

Returns a new instance of Validator.

# File 'lib/rpn-calculator/result/validator.rb', line 6

def initialize(invalid_characters = [])
  @invalid_characters = invalid_characters
end

Instance Method Details

#error ⇒ Object

# File 'lib/rpn-calculator/result/validator.rb', line 14

def error
  "Invalid characters: #{invalid_character_list}" unless valid?
end

#result ⇒ Object

# File 'lib/rpn-calculator/result/validator.rb', line 18

def result
  []
end

#valid? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/rpn-calculator/result/validator.rb', line 10

def valid?
  invalid_characters.empty?
end