class Monads::Optional
Attributes
value[R]
Public Class Methods
from_value(value)
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# File lib/monads/optional.rb, line 27 def self.from_value(value) Optional.new(value) end
new(value)
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# File lib/monads/optional.rb, line 9 def initialize(value) @value = value end
Public Instance Methods
and_then(&block)
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# File lib/monads/optional.rb, line 13 def and_then(&block) block = ensure_monadic_result(&block) if value.nil? self else block.call(value) end end
respond_to_missing?(method_name, include_private = false)
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Calls superclass method
# File lib/monads/optional.rb, line 23 def respond_to_missing?(method_name, include_private = false) super || value.nil? || value.respond_to?(method_name, include_private) end