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(;module:
lux
(lux (control monad
pipe)
(data text/format
[product])
[macro #+ Monad<Lux>]
[type]
(type ["TC" check]))
(luxc ["&" base]
(lang analysis)))
(def: #export (with-unknown-type action)
(All [a] (-> (Lux Analysis) (Lux [Type Analysis])))
(do Monad<Lux>
[[var-id var-type] (&;within-type-env
TC;create-var)
analysis (&;with-expected-type var-type
action)
analysis-type (&;within-type-env
(TC;clean var-id var-type))
_ (&;within-type-env
(TC;delete-var var-id))]
(wrap [analysis-type analysis])))
(def: #export (with-var body)
(All [a] (-> (-> [Nat Type] (Lux a)) (Lux a)))
(do Monad<Lux>
[[id var] (&;within-type-env TC;create-var)
output (body [id var])
_ (&;within-type-env (TC;delete-var id))]
(wrap output)))
(def: #export (variant-out-of-bounds-error type size tag)
(All [a] (-> Type Nat Nat (Lux a)))
(&;fail (format "Trying to create variant with tag beyond type's limitations." "\n"
" Tag: " (%i (nat-to-int tag)) "\n"
"Size: " (%i (nat-to-int size)) "\n"
"Type: " (%type type))))
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