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concurrent_ractor_mixins

⚛️ Concurrency-safe Mixins with Ractors and Clone​

Design mixins that can work across Ractors without sharing mutable state. Use #clone to deep-copy module state and freeze constants to avoid cross-Ractor violations.

module Counter
  def increment
    @count ||= 0
    @count += 1
  end

  def value
    @count
  end
end

ractor1 = Ractor.new do
  c = Counter.clone
  c.extend(Counter)
  3.times { c.increment }
  c.value
end

ractor2 = Ractor.new do
  c = Counter.clone
  c.extend(Counter)
  2.times { c.increment }
  c.value
end

puts ractor1.take  # => 3
puts ractor2.take  # => 2