Module: Tarantool::UnpackTuples

Includes:
Tarantool::Util::Packer, Tarantool::Util::TailGetter
Included in:
Response
Defined in:
lib/tarantool/response.rb,
ext/tarantool/response_c.c

Constant Summary collapse

UTF8 = 
'utf-8'.freeze

Constants included from Tarantool::Util::Packer

Tarantool::Util::Packer::INT16, Tarantool::Util::Packer::INT32, Tarantool::Util::Packer::INT64, Tarantool::Util::Packer::INT8, Tarantool::Util::Packer::MAX_INT16, Tarantool::Util::Packer::MAX_INT32, Tarantool::Util::Packer::MAX_INT64, Tarantool::Util::Packer::MAX_INT8, Tarantool::Util::Packer::MAX_SINT16, Tarantool::Util::Packer::MAX_SINT32, Tarantool::Util::Packer::MAX_SINT64, Tarantool::Util::Packer::MAX_SINT8, Tarantool::Util::Packer::MIN_INT, Tarantool::Util::Packer::MIN_SINT16, Tarantool::Util::Packer::MIN_SINT32, Tarantool::Util::Packer::MIN_SINT64, Tarantool::Util::Packer::MIN_SINT8, Tarantool::Util::Packer::SINT16, Tarantool::Util::Packer::SINT32, Tarantool::Util::Packer::SINT64, Tarantool::Util::Packer::SINT8

Instance Method Summary collapse

Instance Method Details

#_unpack_field(data, field, i_o, realfield_o, serializers) ⇒ Object 



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# File 'ext/tarantool/response_c.c', line 102

def _unpack_field(tuple_str, field, i, realfield, serializers)
  field_size = ::BinUtils.slice_ber!(tuple_str)
  return nil if field_size == 0

  case field
  when :int, :integer
    if field_size != 4
      raise ValueError, "Bad field size #{field_size} for integer field ##{i}"
    end
    ::BinUtils.slice_int32_le!(tuple_str)
  when :string, :str
    str = tuple_str.slice!(0, field_size)
    str[0,1] = EMPTY  if str < ONE
    str.force_encoding(UTF8)
  when :int64
    if field_size != 8
      raise ValueError, "Bad field size #{field_size} for 64bit integer field ##{i}"
    end
    ::BinUtils.slice_int64_le!(tuple_str)
  when :bytes
    tuple_str.slice!(0, field_size)
  when :int16
    if field_size != 2
      raise ValueError, "Bad field size #{field_size} for 16bit integer field ##{i}"
    end
    ::BinUtils.slice_int16_le!(tuple_str)
  when :int8
    if field_size != 1
      raise ValueError, "Bad field size #{field_size} for 8bit integer field ##{i}"
    end
    ::BinUtils.slice_int8!(tuple_str)
  when :sint
    if field_size != 4
      raise ValueError, "Bad field size #{field_size} for integer field ##{i}"
    end
    ::BinUtils.slice_sint32_le!(tuple_str)
  when :sint64
    if field_size != 8
      raise ValueError, "Bad field size #{field_size} for 64bit integer field ##{i}"
    end
    ::BinUtils.slice_sint64_le!(tuple_str)
  when :sint16
    if field_size != 2
      raise ValueError, "Bad field size #{field_size} for 16bit integer field ##{i}"
    end
    ::BinUtils.slice_sint16_le!(tuple_str)
  when :sint8
    if field_size != 1
      raise ValueError, "Bad field size #{field_size} for 8bit integer field ##{i}"
    end
    ::BinUtils.slice_sint8!(tuple_str)
  when :varint
    case field_size
    when 8
      ::BinUtils.slice_int64_le!(tuple_str)
    when 4
      ::BinUtils.slice_int32_le!(tuple_str)
    when 2
      ::BinUtils.slice_int16_le!(tuple_str)
    else
      raise ValueError, "Bad field size #{field_size} for integer field ##{i}"
    end
  when :auto
    str = tuple_str.slice!(0, field_size).force_encoding('utf-8')
    case field_size
    when 8, 4, 2
      Util::AutoType.new(str)
    else
      str
    end
  else
    (serializers[realfield] ||= get_serializer(field)).decode(tuple_str.slice!(0, field_size))
  end
end