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(.require
 [library
  [lux (.except Definition)
   [program (.only program:)]
   ["@" target]
   ["[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)]]]
   ["[0]" world
    ["[0]" file]
    ["[1]/[0]" program]]
   [target
    ["[0]" jvm
     [bytecode (.only Bytecode)]
     ["[1]/[0]" type
      ["[1]/[0]" box]]]]
   [tool
    [compiler (.only)
     ["[0]" phase]
     [default
      ["[0]" platform (.only Platform)]]
     [meta
      [archive (.only Archive)]
      ["[0]" context]
      ["[0]" cli]
      ["[0]" packager
       ["[1]" jvm]]]
     [language
      [lux
       [generation (.only Operation)]
       [analysis
        [macro (.only Expander)]]
       [phase
        ["[0]" extension (.only)
         ["[0]" analysis
          ["[1]" jvm]]
         ["[0]" generation
          ["[1]" jvm]]
         ["[0]" declaration
          ["[1]" jvm]]]
        [generation
         ["/" jvm (.only)
          ["[1][0]" runtime (.only Anchor Definition)]
          ["[1][0]" host]
          ["[1][0]" program]]]]]]]]]]
 [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 _apply5_args
  (Array (java/lang/Class java/lang/Object))
  (|> (ffi.array (java/lang/Class java/lang/Object) 5)
      (ffi.write! 0 _object_class)
      (ffi.write! 1 _object_class)
      (ffi.write! 2 _object_class)
      (ffi.write! 3 _object_class)
      (ffi.write! 4 _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 archive)
  (-> Archive (Operation Anchor (Bytecode Any) Definition phase.Wrapper))
  (at phase.monad in (|>>)))

(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 /.generate
          platform.#runtime /runtime.generate

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

(def (extender phase_wrapper)
  (-> phase.Wrapper extension.Extender)
  ... TODO: Stop relying on coercions ASAP.
  (<| (as extension.Extender)
      (function (@self handler))
      (as extension.Handler)
      (function (@self name phase))
      (as extension.Phase)
      (function (@self archive parameters))
      (as extension.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" _apply5_args))]
        (java/lang/reflect/Method::invoke
         (as java/lang/Object handler)
         (|> (ffi.array java/lang/Object 5)
             (ffi.write! 0 (as java/lang/Object name))
             (ffi.write! 1 (as java/lang/Object (phase_wrapper phase)))
             (ffi.write! 2 (as java/lang/Object archive))
             (ffi.write! 3 (as java/lang/Object parameters))
             (ffi.write! 4 (as java/lang/Object state)))
         method))))

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

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

(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)
                generation.bundle
                (|>> ..extender (declaration.bundle loader))
                (/program.program /runtime.class_name)
                [Anchor (type_literal (Bytecode Any)) Definition]
                ..extender
                service
                [(packager.package context)
                 (format (cli.target service) (at file.default separator) "program.jar")])]
            (..declare_success! []))
      (io.io []))))