memoist2

Simple Memoization for Ruby 2.0

Differences between Memoist & Memoist2

Unlike Memoist, this is not a drop-in replacement for old ActiveSupport::Memoizable. Memoist will still work just fine for that if you're using Ruby 2.0. This project, on the other hand, is just me playing using Module#prepend which makes this stuff very simple.

• Memoist works on all Rubies

• Memoist is quite complicated

• Memoist has the exact same api as ActiveSupport::Memoizable

• Memoist2 only works on Ruby >= 2.0.0

• Memoist2 is deliberately much simpler

• Memoist2 has a slightly different API that could totally change

Example

Memoize an instance method

class Foo
  include Memoist2

  def bar
    sleep 1 && 2**10
  end
  memoize :bar
end

Memoize a class method

class Foo
  include Memoist2

  def self.bar
    # something expensive
  end
  memoize_class_method :bar
end

Licence

Licensed under the MIT licence.

See the file LICENCE.