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(.module:
  [lux #*
   [abstract
    [monad (#+ do)]]
   [control
    ["." io (#+ IO)]]
   [data
    ["." error (#+ Error)]]
   [tool
    [compiler
     ["." synthesis (#+ Synthesis)]
     ["." statement]
     ["." phase
      ["." macro (#+ Expander)]
      ["." generation (#+ Operation Bundle)]
      [extension
       ["." bundle]]]
     [default
      ["." platform (#+ Platform)]]]]])

(type: #export Runner (-> Text Synthesis (Error Any)))
(type: #export Definer (-> Name Synthesis (Error Any)))

(def: #export (runner platform bundle expander program)
  (All [anchor expression statement]
    (-> (Platform IO anchor expression statement)
        (Bundle anchor expression statement)
        Expander
        (-> expression statement)
        Runner))
  (function (_ evaluation-name expressionS)
    (io.run
     (do io.monad
       [?state (platform.initialize expander platform bundle program)]
       (wrap (do error.monad
               [[bundle' state] ?state
                expressionG (<| (phase.run (get@ [#statement.generation
                                                  #statement.state]
                                                 state))
                                (do phase.monad
                                  [_ (get@ #platform.runtime platform)]
                                  ((get@ #platform.phase platform) expressionS)))]
               (:: (get@ #platform.host platform) evaluate! evaluation-name
                   expressionG)))))
    ))

## (def: #export (runner generate-runtime translate bundle state)
##   (-> (Operation Any) Phase Bundle (IO State)
##       Runner)
##   (function (_ valueS)
##     (|> (do phase.Monad<Operation>
##           [_ generate-runtime
##            program (translate valueS)]
##           (translation.evaluate! "runner" program))
##         translation.with-buffer
##         (phase.run [bundle (io.run state)]))))

## (def: #export (definer generate-runtime translate bundle state)
##   (-> (Operation Any) Phase Bundle (IO State) Definer)
##   (function (_ lux-name valueS)
##     (|> (do phase.Monad<Operation>
##           [_ generate-runtime
##            valueH (translate valueS)
##            [host-name host-value] (translation.define! lux-name valueH)
##            _ (translation.learn lux-name host-name)
##            program (translate (synthesis.constant lux-name))]
##           (translation.evaluate! "definer" program))
##         translation.with-buffer
##         (phase.run [bundle (io.run state)]))))