alt.coffee

property = (instance, name) ->
  instance[name] =
    get: -> instance["_#{name}"]
    set: (value) -> instance["_#{name}"] = value

get = (instance, route, block) ->
  instance.routes[route] = type: 'get', block: block

put = (instance, route, block) ->
  instance.routes[route] = type: 'put', block: block


class TaxModel extends Model
  property @, 'rate'    # the VAT, [0..1]
  relation @, TaxClass

mixin: (instance, object) ->
  (instance[key] = value) for key, value of object


class Router
  get @, '/index', ->
    # blah
  put @, '/post/:id', ->
    # blah


class Top
  prop1: null
  prop2: null

class Nested
   mixin @, Top