Module: Nl::StructuredPayload::ClassMethods

Defined in:
nl/lib/nl/structured_payload.rb

Instance Method Summary collapse

Instance Method Details

#decode(decoder, external_selectors: []) ⇒ Object 



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# File 'nl/lib/nl/structured_payload.rb', line 45

def decode(decoder, external_selectors: [])
  fixed_header = self::FIXED_HEADER&.decode(decoder)
  attributes = self::ATTRIBUTE_SET&.decode(decoder, external_selectors:)
  new(fixed_header, attributes)
end

#from_params(params = nil, external_selectors: [], **keywords) ⇒ Object 



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# File 'nl/lib/nl/structured_payload.rb', line 17

def from_params(params = nil, external_selectors: [], **keywords)
  params = (params || {}).merge(keywords).transform_keys(&:to_sym)

  if self::FIXED_HEADER
    header_params = params.slice(*self::FIXED_HEADER.members)
    fixed_header = self::FIXED_HEADER.new(**header_params)
  else
    header_params = {}
  end

  if self::ATTRIBUTE_SET
    attribute_params = params.slice(*attribute_names)
    attributes = self::ATTRIBUTE_SET.build_attributes(
      attribute_params,
      external_selectors:,
    )
  else
    attribute_params = {}
  end

  unknown = params.keys - header_params.keys - attribute_params.keys
  unless unknown.empty?
    raise ArgumentError, "unknown parameters: #{unknown.join(', ')}"
  end

  new(fixed_header, attributes)
end