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vdebergue/mixins.coffee

Created April 18, 2013 18:25
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Example of how to do Mixins in Coffeescript similar to the Scala ones
Raw
mixins.coffee
class Mixable
@with: (classes...) ->
for clazz in classes
# add the class properties
for key, value of clazz
@[key] = value
# add the instance (prototype) properties
for key, value of clazz::
@::[key] = value
class A
@id = "aze"
@find : -> "A.find"
a : -> "a"
ba : -> "a"
class B
b : -> "b"
ba : -> "b"
class BA extends Mixable
@with A, B
ba = new BA()
console.log ba.a() # "a"
console.log BA.find() # "A.find"
console.log BA.id # "aze"
console.log ba.b() # "b"
console.log ba.ba() # "b" B is the last class to the right so its definition is selected for the BA class
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