Class: Code::Type::Maybe

Inherits:
Code::Type show all
Defined in:
lib/code/type/maybe.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Code::Type

#max_arguments_of, #maybe, #min_arguments_of, #repeat, #valid_for?, #|

Constructor Details

#initialize(clazz) ⇒ Maybe

Returns a new instance of Maybe.



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# File 'lib/code/type/maybe.rb', line 8

def initialize(clazz)
  @clazz = clazz
end

Instance Attribute Details

#clazz ⇒ Object (readonly)

Returns the value of attribute clazz.



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# File 'lib/code/type/maybe.rb', line 6

def clazz
  @clazz
end

Instance Method Details

#max_arguments ⇒ Object 



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# File 'lib/code/type/maybe.rb', line 21

def max_arguments
  max_arguments_of(clazz)
end

#min_arguments ⇒ Object 



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# File 'lib/code/type/maybe.rb', line 17

def min_arguments
  0
end

#name ⇒ Object 



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# File 'lib/code/type/maybe.rb', line 25

def name
  "#{clazz.name}.maybe"
end

#valid?(argument) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/code/type/maybe.rb', line 12

def valid?(argument)
  !argument || argument.is_a?(Object::Nothing) ||
    valid_for?(expected: clazz, actual: argument)
end