module BSON::Integer

def as_extended_json(**options)
  # The behavior of native integers' serialization to extended json is
  # not specified. Following our bson serialization logic in this file,
  # produce explicit $numberInt or $numberLong, choosing $numberInt if
  # the integer fits in 32 bits. In Ruby integers can be arbitrarily
  # big; integers that do not fit into 64 bits raise an error as we do not
  # want to silently perform an effective type conversion of integer ->
  # decimal.
  unless bson_int64?
    raise RangeError, "Integer #{self} is too big to be represented as a MongoDB integer"
  end
  if options[:mode] == :relaxed || options[:mode] == :legacy
    self
  elsif bson_int32?
    {'$numberInt' => to_s}
  else
    {'$numberLong' => to_s}
  end
end