module.coffee

class Module
  @moduleKeywords = ['instance', 'extended', 'included']

  @extend: (obj, mixin) ->
    for key, value of mixin when key not in @moduleKeywords
      obj[key] = value

    if typeof mixin.instance is 'object'
      @include obj, mixin.instance

    return obj

  @include: (obj, mixin) ->
    for key, value of mixin when key not in @moduleKeywords
      # Assign properties to the prototype
      obj::[key] = value

    return obj

this.Module = Module