Alguém vai me mandar direto para o Inferno por causa dessa loucura, mas funciona! 🙂
Function::include = (mixin) ->
for name, method of mixin
method['super'] = @prototype[name]
@prototype[name] = method
class Foo
foo: -> 'foo from Foo'
Mixin =
foo: ->
"#{arguments.callee.super()}, foo from Mixin"
class Bar extends Foo
@includee Mixin # yes, intended typo, otherwise coderwall messes it all up (coderwall team, please help me)
new Bar().foo() # => "foo from Foo, foo from Mixin"
EDIT renomeado extend
para include
evitar confusão para Rubistas;)