Class: AffirmIt::Preference::IsA

Inherits:
Preference show all
Defined in:
lib/affirmit/preference/isa.rb

Instance Method Summary collapse

Methods inherited from Preference

#&, #|, #~

Constructor Details

#initialize(expected) ⇒ IsA

Returns a new instance of IsA.



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# File 'lib/affirmit/preference/isa.rb', line 6

def initialize expected
  @expected = expected
end

Instance Method Details

#description ⇒ Object 



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# File 'lib/affirmit/preference/isa.rb', line 14

def description
  class_name = @expected.inspect
  article = if class_name =~ /^[AEIOUaeiou]/ then 'an' else 'a' end
  return "object that is #{article} <#{class_name}>"
end

#is_preferred?(actual) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/affirmit/preference/isa.rb', line 10

def is_preferred? actual
  actual.is_a? @expected
end