Function writeRelativePosition

src/utils/RelativePosition.js:195–213

(encoder, rpos)

 * @function
 */
export const writeRelativePosition = (encoder, rpos) => {
  const { type, tname, item, assoc } = rpos
  if (item !== null) {
    encoding.writeVarUint(encoder, 0)
    writeID(encoder, item)
  } else if (tname !== null) {
    // case 2: found position at the end of the list and type is stored in y.share
    encoding.writeUint8(encoder, 1)
    encoding.writeVarString(encoder, tname)
  } else if (type !== null) {
    // case 3: found position at the end of the list and type is attached to an item
    encoding.writeUint8(encoder, 2)
    writeID(encoder, type)
  } else {
    throw error.unexpectedCase()
  }
  encoding.writeVarInt(encoder, assoc)
  return encoder
}

/**
 * @param {RelativePosition} rpos