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ActiveSupport::Memoizable with a few enhancements
Ruby
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README.md
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README.md

Memoizer

Memoizer is an extraction of ActiveSupport::Memoizable.

Since June 2011 ActiveSupport::Memoizable has been deprecated. But I love it, and so I plan to keep it alive.

Usage

Just extend with the Memoizer module

require 'memoizer'
class Person
  extend Memoizer

  def social_security
    decrypt_social_security
  end
  memoize :social_security
end

And person.social_security will only be calculated once.

You can even do it with a method that takes arguments.

class Person
  def taxes_due(income)
    income * 0.40
  end
  memoize :taxes_due
end

This will only be calculated once per value of income.

Authors

Everyone who contributed to it in the rails repository.

  • Joshua Peek
  • Tarmo Tänav
  • Jeremy Kemper
  • Eugene Pimenov
  • Xavier Noria
  • Niels Ganser
  • Carl Lerche & Yehuda Katz
  • jeem
  • Jay Pignata
  • Damien Mathieu
  • José Valim
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