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(.require
 [library
  [lux (.except Definition)
   [program (.only program)]
   ["[0]" ffi (.only import)]
   [abstract
    [monad (.only do)]]
   [control
    ["[0]" io (.only IO)]
    ["[0]" try (.only Try)]
    [concurrency
     ["[0]" async (.only Async)]]]
   [data
    ["[0]" product]
    [text
     ["%" \\format (.only format)]]
    [collection
     [array (.only Array)]]]
   [meta
    ["@" target (.only)
     ["[0]" jvm
      [bytecode (.only Bytecode)]
      ["[1]/[0]" type
       ["[1]/[0]" box]]]]
    [compiler (.only)
     ["[0]" phase]
     [default
      ["[0]" platform (.only Platform)]]
     [meta
      [archive (.only Archive)]
      ["[0]" context]
      ["[0]" cli]
      ["[0]" packager
       ["[1]" jvm]]]
     [language
      [lux
       [translation (.only Operation)]
       [analysis
        [macro (.only Expander)]]
       [phase
        ["[0]" extension (.only)
         ["[0]" analysis
          ["[1]" jvm]]
         ["[0]" translation
          ["[1]" jvm]]
         ["[0]" declaration
          ["[1]" jvm]]]
        [translation
         ["/" jvm (.only)
          ["[1][0]" runtime (.only Anchor Definition)]
          ["[1][0]" host]
          ["[1][0]" program]
          ["[1][0]" reference]]]]]]]]
   ["[0]" world
    ["[0]" file]
    ["[1]/[0]" environment]]]]
 [program
  ["[0]" compositor]])

(import java/lang/reflect/Method
  "[1]::[0]"
  (invoke [java/lang/Object [java/lang/Object]] "try" java/lang/Object))

(import java/lang/ClassLoader
  "[1]::[0]")

(import (java/lang/Class c)
  "[1]::[0]"
  (getMethod [java/lang/String [(java/lang/Class java/lang/Object)]] "try" java/lang/reflect/Method))

(import java/lang/Object
  "[1]::[0]"
  (getClass [] (java/lang/Class java/lang/Object)))

(def _object_class
  (java/lang/Class java/lang/Object)
  (ffi.class_for java/lang/Object))

(def _apply2_args
  (Array (java/lang/Class java/lang/Object))
  (|> (ffi.array (java/lang/Class java/lang/Object) 2)
      (ffi.write! 0 _object_class)
      (ffi.write! 1 _object_class)))

(def _apply4_args
  (Array (java/lang/Class java/lang/Object))
  (|> (ffi.array (java/lang/Class java/lang/Object) 4)
      (ffi.write! 0 _object_class)
      (ffi.write! 1 _object_class)
      (ffi.write! 2 _object_class)
      (ffi.write! 3 _object_class)))

(def .public (expander macro inputs lux)
  Expander
  (do try.monad
    [apply_method (|> macro
                      (as java/lang/Object)
                      (java/lang/Object::getClass)
                      (java/lang/Class::getMethod "apply" _apply2_args))]
    (as (Try (Try [Lux (List Code)]))
        (java/lang/reflect/Method::invoke
         (as java/lang/Object macro)
         (|> (ffi.array java/lang/Object 2)
             (ffi.write! 0 (as java/lang/Object inputs))
             (ffi.write! 1 (as java/lang/Object lux)))
         apply_method))))

(def phase_wrapper
  phase.Wrapper
  (|>>))

(def .public platform
  (IO [java/lang/ClassLoader
       /runtime.Host
       (Platform Anchor (Bytecode Any) Definition)])
  (do io.monad
    [[loader host] /host.host]
    (in [loader
         host
         [platform.#file_system (file.async file.default)
          platform.#host host

          platform.#phase /.translate
          platform.#runtime /runtime.translate

          platform.#phase_wrapper ..phase_wrapper
          platform.#write product.right]])))

(def extender
  extension.Extender
  ... TODO: Stop relying on coercions ASAP.
  (<| (as extension.Extender)
      (function (@self handler))
      (as extension.Handler)
      (function (@self phase))
      (as phase.Phase)
      (function (@self archive parameters))
      (as phase.Operation)
      (function (@self state))
      (as Try)
      try.trusted
      (as Try)
      (do try.monad
        [method (|> handler
                    (as java/lang/Object)
                    (java/lang/Object::getClass)
                    (java/lang/Class::getMethod "apply" _apply4_args))]
        (java/lang/reflect/Method::invoke
         (as java/lang/Object handler)
         (|> (ffi.array java/lang/Object 4)
             (ffi.write! 0 (as java/lang/Object (phase_wrapper phase)))
             (ffi.write! 1 (as java/lang/Object archive))
             (ffi.write! 2 (as java/lang/Object parameters))
             (ffi.write! 3 (as java/lang/Object state)))
         method))))

(def (declare_success! _)
  (-> Any (Async Any))
  (async.future (of world/environment.default exit +0)))

(def lux_compiler
  (-> Any platform.Custom)
  (|>> as_expected))

(def _
  (program [service cli.service]
    (let [context (context.jvm (cli.target service))]
      (exec (do async.monad
              [[loader host platform] (async.future ..platform)
               _ (compositor.compiler ..lux_compiler
                                      context
                                      ..expander
                                      (analysis.bundle loader host)
                                      (io.io platform)
                                      translation.bundle
                                      (declaration.bundle loader ..extender)
                                      (/program.program /runtime.class_name)
                                      /reference.constant
                                      ..extender
                                      service
                                      [(packager.package context)
                                       (format (cli.target service) (of file.default separator) "program.jar")])]
              (..declare_success! []))
        (io.io [])))))