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scoped_refinements

🛡 Scoped Monkey Patching with Refinements​

Refinements let you apply monkey patches in a limited scope. This avoids global side effects while still leveraging core extensions when needed.

module StringExtensions
  refine String do
    def shout
      upcase + "!"
    end
  end
end

class Greeter
  using StringExtensions

  def greet(name)
    name.shout
  end
end

puts Greeter.new.greet('hello')  # => "HELLO!"
# Outside Greeter, "hello".shout is undefined