(;module:
  lux
  (lux (control [monad #+ do])
       (data ["e" error])
       [macro]
       [host])
  (luxc (lang [";L" host]
              (translation [";T" common]))))

(for {"JVM" (as-is (host;import java.lang.reflect.Method
                     (invoke [Object (Array Object)] #try Object))
                   (host;import (java.lang.Class c)
                     (getMethod [String (Array (Class Object))] #try Method))
                   (host;import java.lang.Object
                     (getClass [] (Class Object))
                     (toString [] String))
                   (def: _object-class (Class Object) (host;class-for Object))
                   (def: _apply-args
                     (Array (Class Object))
                     (|> (host;array (Class Object) +2)
                         (host;array-write +0 _object-class)
                         (host;array-write +1 _object-class)))
                   (def: #export (expand macro inputs)
                     (-> Macro (List Code) (Meta (List Code)))
                     (do macro;Monad<Meta>
                       [class (commonT;load-class hostL;function-class)]
                       (function [compiler]
                         (do e;Monad<Error>
                           [apply-method (Class.getMethod ["apply" _apply-args] class)
                            output (Method.invoke [(:! Object macro)
                                                   (|> (host;array Object +2)
                                                       (host;array-write +0 (:! Object inputs))
                                                       (host;array-write +1 (:! Object compiler)))]
                                                  apply-method)]
                           (:! (e;Error [Compiler (List Code)])
                               output))))))
      })