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(;module:
lux
(lux (control monad)
[meta #+ Monad<Meta>]
(meta (type ["TC" check])))
(luxc ["&" base]
(lang ["la" analysis #+ Analysis])))
## These 2 analysers are somewhat special, since they require the
## means of evaluating Lux expressions at compile-time for the sake of
## computing Lux type values.
(def: #export (analyse-check analyse eval type value)
(-> &;Analyser &;Eval Code Code (Meta Analysis))
(do Monad<Meta>
[actual (eval Type type)
#let [actual (:! Type actual)]
expected meta;expected-type
_ (&;with-type-env
(TC;check expected actual))]
(&;with-expected-type actual
(analyse value))))
(def: #export (analyse-coerce analyse eval type value)
(-> &;Analyser &;Eval Code Code (Meta Analysis))
(do Monad<Meta>
[actual (eval Type type)
expected meta;expected-type
_ (&;with-type-env
(TC;check expected (:! Type actual)))]
(&;with-expected-type Top
(analyse value))))
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