Class: InferModel::Parsers::Boolean

Inherits:
Object
  • Object
show all
Extended by:
Dry::Initializer, Callable
Defined in:
lib/infer_model/parsers/boolean.rb

Constant Summary collapse

TRUTHY_VALUES_LOWERCASE = 
%w[true t x y j + * 1].freeze
FALSEY_VALUES_LOWERCASE = 
%w[false f n - 0].freeze

Instance Method Summary collapse

Instance Method Details

#call ⇒ Object

Raises:



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# File 'lib/infer_model/parsers/boolean.rb', line 14

def call
  raise Parsers::Error, "value was blank which is not allowed" if value.nil? && !allow_blank
  return if value.nil?
  return false if value.empty?
  return false if FALSEY_VALUES_LOWERCASE.any? { |lie| value.casecmp(lie).zero? }
  return true if TRUTHY_VALUES_LOWERCASE.any? { |truth| value.casecmp(truth).zero? }

  raise Parsers::Error, "'#{value}' is not a Boolean"
end