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(.module:
  [library
   [lux "*"
    ["[0]" debug]
    [control
     ["[0]" try {"+" Try}]
     ["[0]" exception {"+" exception:}]
     [parser
      ["<[0]>" code]]]
    [data
     [text
      ["%" format]]]
    [macro {"+" with_symbols}
     ["[0]" syntax {"+" syntax:}]]
    ["[0]" type
     abstract]]])

(exception: .public (wrong_type [expected Type
                                 actual Type])
  (exception.report
   ["Expected" (%.type expected)]
   ["Actual" (%.type actual)]))

(abstract: .public Dynamic
  [Type Any]

  (def: abstraction
    (-> [Type Any] Dynamic)
    (|>> :abstraction))
  
  (def: representation
    (-> Dynamic [Type Any])
    (|>> :representation))

  (syntax: .public (:dynamic [value <code>.any])
    (with_symbols [g!value]
      (in (list (` (let [(~ g!value) (~ value)]
                     ((~! ..abstraction) [(:of (~ g!value)) (~ g!value)])))))))

  (syntax: .public (:static [type <code>.any
                             value <code>.any])
    (with_symbols [g!type g!value]
      (in (list (` (let [[(~ g!type) (~ g!value)] ((~! ..representation) (~ value))]
                     (: ((~! try.Try) (~ type))
                        (if (# (~! type.equivalence) (~' =)
                               (.type (~ type)) (~ g!type))
                          {try.#Success (:as (~ type) (~ g!value))}
                          ((~! exception.except) ..wrong_type [(.type (~ type)) (~ g!type)])))))))))

  (def: .public (format value)
    (-> Dynamic (Try Text))
    (let [[type value] (:representation value)]
      (debug.representation type value)))
  )