Module: ReeEnum::Enumerable::ClassMethods

Includes:
Contractable
Defined in:
lib/ree_lib/packages/ree_enum/package/ree_enum/enumerable.rb

Constant Summary collapse

RESTRICTED_METHODS = 
[
  :setup_enum, :get_values, :get_enum_name, :val,
  :__ENCODING__, :__LINE__, :__FILE__, :BEGIN, :END,
  :alias, :and, :begin, :break, :case, :class, :def, :defined?,
  :do, :else, :elsif, :end, :ensure, :false, :for, :if, :in,
  :module, :next, :nil, :not, :or, :redo, :rescue, :retry, :return,
  :self, :super, :then, :true, :undef, :unless, :until, :when, :while, :yield
].freeze
ALLOWED_VALUE_TO_METHOD_REGEXP = 
/^[a-z_]\w*[?!]?$/

Instance Method Summary collapse

Methods included from Contractable

#message, #valid?

Instance Method Details

#get_enum_name ⇒ Object 



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# File 'lib/ree_lib/packages/ree_enum/package/ree_enum/enumerable.rb', line 34

def get_enum_name
  @values&.enum_name
end

#get_values ⇒ Object 



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# File 'lib/ree_lib/packages/ree_enum/package/ree_enum/enumerable.rb', line 30

def get_values
  @values
end

#setup_enum(enum_name) ⇒ Object 



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# File 'lib/ree_lib/packages/ree_enum/package/ree_enum/enumerable.rb', line 26

def setup_enum(enum_name)
  @values ||= ReeEnum::Values.new(self, enum_name)
end

#val(value, mapped_value = nil, method: nil) ⇒ Object 



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# File 'lib/ree_lib/packages/ree_enum/package/ree_enum/enumerable.rb', line 38

def val(value, mapped_value = nil, method: nil)
  value = value.to_s if value.is_a?(Symbol)
  mapped_value ||= value

  if method.nil? && value.is_a?(String) && value.match?(ALLOWED_VALUE_TO_METHOD_REGEXP)
    method = value.to_sym
  end

  if RESTRICTED_METHODS.include?(method)
    raise ArgumentError.new("#{method.inspect} is not allowed as enum method")
  end

  enum_value = @values.add(value, mapped_value, method)

  if !method.nil?
    class_eval(<<~RUBY, __FILE__, __LINE__ + 1)
      def #{method}
        get_values.by_value(#{value.inspect}.freeze)
      end

      def self.#{method}
        get_values.by_value(#{value.inspect}.freeze)
      end
    RUBY
  end

  enum_value
end