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(;module:
lux
(lux (control monad
["ex" exception #+ exception:])
(data text/format
[product])
[macro]
(lang [type]
(type ["tc" check])))
(luxc ["&" lang]
(lang analysis)))
(def: #export (with-unknown-type action)
(All [a] (-> (Meta a) (Meta [Type a])))
(do macro;Monad<Meta>
[[_ varT] (&;with-type-env tc;var)
analysis (&;with-type varT
action)
knownT (&;with-type-env (tc;clean varT))]
(wrap [knownT analysis])))
(exception: #export Variant-Tag-Out-Of-Bounds)
(def: #export (variant-out-of-bounds-error type size tag)
(All [a] (-> Type Nat Nat (Meta a)))
(&;throw Variant-Tag-Out-Of-Bounds
(format " Tag: " (%n tag) "\n"
"Variant Size: " (%n size) "\n"
"Variant Type: " (%type type))))
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