Module: Bparity::Recording::Serializer

Defined in:
lib/bparity/recording.rb

Class Method Summary collapse

Class Method Details

.dump(value, projections: {}, seen: nil) ⇒ Object 



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# File 'lib/bparity/recording.rb', line 26

def dump(value, projections: {}, seen: nil)
  seen ||= {}.compare_by_identity
  projection = projections[value.class.name]
  if projection
    return { "$unserializable" => value.class.name, "$reason" => "cyclic projection" } if seen.key?(value)

    return dump(projection.call(value), projections:, seen: with_seen(seen, value))
  end

  if recursive?(value)
    return { "$unserializable" => value.class.name, "$reason" => "cyclic reference" } if seen.key?(value)

    seen = with_seen(seen, value)
  end

  case value
  when nil, true, false, Integer then value
  when String
    if value.valid_encoding?
      value
    else
      { "$string_bytes" => [value.b].pack("m0"), "$encoding" => value.encoding.name }
    end
  when Float then value.finite? ? value : { "$float" => value.to_s }
  when Symbol then { "$symbol" => value.to_s }
  when Time then { "$time" => value.utc.iso8601(9) }
  when Array then value.map { |item| dump(item, projections:, seen:) }
  when Hash
    { "$hash" => value.map do |key, item|
      [dump(key, projections:, seen:), dump(item, projections:, seen:)]
    end }
  else
    dump_object(value, projections, seen)
  end
rescue StandardError
  { "$unserializable" => value.class.name, "$digest" => safe_digest(value) }
end

.load(value) ⇒ Object 



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# File 'lib/bparity/recording.rb', line 64

def load(value)
  return value.map { |item| load(item) } if value.is_a?(Array)
  return value unless value.is_a?(Hash)
  return value["$symbol"].to_sym if value.key?("$symbol")
  if value.key?("$string_bytes")
    return value.fetch("$string_bytes").unpack1("m0").force_encoding(value.fetch("$encoding"))
  end
  return Time.iso8601(value["$time"]) if value.key?("$time")
  return Float(value["$float"]) if value.key?("$float")
  return value["$hash"].to_h { |key, item| [load(key), load(item)] } if value.key?("$hash")
  return load_object(value) if value.key?("$class") && value.key?("$ivars")

  value.transform_values { |item| load(item) }
end