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(.module:
lux
(lux (control [monad #+ do]
pipe)
(data [product]
[text]
text/format
(coll [list "list/" Functor<List> Fold<List>]))
[macro])
(luxc ["&" lang]
(lang ["ls" synthesis]
[".L" variable #+ Variable]
(host [r #+ Expression @@])))
[//]
(// [".T" reference]))
(def: #export (translate-apply translate functionS argsS+)
(-> (-> ls.Synthesis (Meta Expression)) ls.Synthesis (List ls.Synthesis) (Meta Expression))
(do {@ macro.Monad<Meta>}
[functionO (translate functionS)
argsO+ (monad.map @ translate argsS+)]
(wrap (r.apply argsO+ functionO))))
(def: $curried (r.var "curried"))
(def: (input-declaration register)
(r.set! (referenceT.variable (inc register))
(|> (@@ $curried) (r.nth (|> register inc .int r.int)))))
(def: (with-closure function-name inits function-definition)
(-> Text (List Expression) Expression (Meta Expression))
(let [$closure (r.var (format function-name "___CLOSURE"))]
(case inits
#.Nil
(do macro.Monad<Meta>
[_ (//.save function-definition)]
(wrap (r.global function-name)))
_
(do macro.Monad<Meta>
[_ (//.save (r.set! $closure
(r.function (|> (list.enumerate inits)
(list/map (|>> product.left referenceT.closure)))
($_ r.then
function-definition
(r.global function-name)))))]
(wrap (r.apply inits (@@ $closure)))))))
(def: #export (translate-function translate env arity bodyS)
(-> (-> ls.Synthesis (Meta Expression))
(List Variable) ls.Arity ls.Synthesis
(Meta Expression))
(do {@ macro.Monad<Meta>}
[[function-name bodyO] (//.with-sub-context
(do @
[function-name //.context]
(//.with-anchor [function-name +1]
(translate bodyS))))
closureO+ (monad.map @ referenceT.translate-variable env)
#let [arityO (|> arity .int r.int)
$num_args (r.var "num_args")
$function (r.var function-name)
var-args (r.code (format "list" (r.expression (@@ r.var-args))))
apply-poly (function (_ args func)
(r.apply (list func args) (r.global "do.call")))]]
(with-closure function-name closureO+
(r.set! $function
(r.function (list r.var-args)
($_ r.then
(r.set! $curried var-args)
(r.set! $num_args (r.length (@@ $curried)))
(r.cond (list [(|> (@@ $num_args) (r.= arityO))
($_ r.then
(r.set! (referenceT.variable +0) (@@ $function))
(|> (list.n/range +0 (dec arity))
(list/map input-declaration)
(list/fold r.then bodyO)))]
[(|> (@@ $num_args) (r.> arityO))
(let [arity-args (r.slice (r.int 1) arityO (@@ $curried))
output-func-args (r.slice (|> arityO (r.+ (r.int 1)))
(@@ $num_args)
(@@ $curried))]
(|> (@@ $function)
(apply-poly arity-args)
(apply-poly output-func-args)))])
## (|> (@@ $num_args) (r.< arityO))
(let [$missing (r.var "missing")]
(r.function (list r.var-args)
($_ r.then
(r.set! $missing var-args)
(|> (@@ $function)
(apply-poly (r.apply (list (@@ $curried) (@@ $missing))
(r.global "append"))))))))))))
))
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