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(;module:
lux
(lux (control monad
pipe)
[io #- run]
(concurrency ["A" atom])
(data ["E" error]
[text "T/" Eq<Text>]
text/format
(coll [list "L/" Fold<List> Monoid<List> Monad<List>]
["D" dict])
[number]
[product])
[macro #+ Monad<Lux>]
[type]
(type ["TC" check]))
(luxc ["&" base]
[lang #*]
["&;" module]
["&;" env])
(. ["&&;" lux]))
(def: #export (analyse eval ast)
Analyser
(case ast
(^template [<tag> <analyser>]
[cursor (<tag> value)]
(<analyser> cursor value))
([#;BoolS &&lux;analyse-bool]
[#;NatS &&lux;analyse-nat]
[#;IntS &&lux;analyse-int]
[#;DegS &&lux;analyse-deg]
[#;RealS &&lux;analyse-real]
[#;CharS &&lux;analyse-char]
[#;TextS &&lux;analyse-text])
(^ [cursor (#;TupleS (list))])
(&&lux;analyse-unit cursor)
(^ [cursor (#;TupleS (list singleton))])
(analyse eval singleton)
(^ [cursor (#;TupleS elems)])
(&&lux;analyse-tuple (analyse eval) cursor elems)
[cursor (#;SymbolS reference)]
(&&lux;analyse-reference cursor reference)
(^ [cursor (#;FormS (list [_ (#;SymbolS ["" "_lux_check"])]
type
value))])
(&&lux;analyse-check analyse eval cursor type value)
(^ [cursor (#;FormS (list [_ (#;SymbolS ["" "_lux_coerce"])]
type
value))])
(&&lux;analyse-coerce analyse eval cursor type value)
(^ [cursor (#;FormS (list [_ (#;NatS tag)]
value))])
(&&lux;analyse-variant (analyse eval) cursor tag value)
_
(&;fail (format "Unrecognized syntax: " (%ast ast)))
))
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