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(.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)
(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))))))
})
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