Gem::Version#_segments

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/version.rb, line 460
def _segments
  # segments is lazy so it can pick up version values that come from
  # old marshaled versions, which don't go through marshal_load.
  # since this version object is cached in @@all, its @segments should be frozen
  @segments ||= partition_segments(@version)
end