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refinement_scoping

🔒 Scope Patches with Refinements​

Refinements let you monkey-patch classes in a localized scope without affecting global behavior. This is perfect for libraries that need to override core methods without polluting other code.

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

gem 'some_dependency'

using StringExtensions
puts "hello".shout  # => "HELLO!!!"
# Outside this file or before `using`, String#shout is undefined.