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(.module:
lux
(lux (control [monad #+ do]
["ex" exception #+ exception:]
["p" parser])
(data ["e" error]
text/format)
[macro]
(macro ["s" syntax]))
(luxc ["&" lang]
(lang [".L" variable #+ Variable Register]
[".L" extension]
["ls" synthesis]
(host [python #+ Expression Statement])))
[//]
(// [".T" runtime]
[".T" primitive]
[".T" structure]
[".T" function]
[".T" reference]
[".T" case]
[".T" procedure]))
(do-template [<name>]
[(exception: #export (<name> {message Text})
message)]
[Invalid-Function-Syntax]
[Unrecognized-Synthesis]
)
(def: #export (translate synthesis)
(-> ls.Synthesis (Meta Expression))
(case synthesis
(^code [])
(:: macro.Monad<Meta> wrap runtimeT.unit)
(^code [(~ singleton)])
(translate singleton)
(^template [<tag> <generator>]
[_ (<tag> value)]
(<generator> value))
([#.Bit primitiveT.translate-bit]
[#.Nat primitiveT.translate-nat]
[#.Int primitiveT.translate-int]
[#.Rev primitiveT.translate-rev]
[#.Frac primitiveT.translate-frac]
[#.Text primitiveT.translate-text])
(^code ((~ [_ (#.Nat tag)]) (~ [_ (#.Bit last?)]) (~ valueS)))
(structureT.translate-variant translate tag last? valueS)
(^code [(~+ members)])
(structureT.translate-tuple translate members)
(^ [_ (#.Form (list [_ (#.Int var)]))])
(referenceT.translate-variable var)
[_ (#.Identifier definition)]
(referenceT.translate-definition definition)
(^code ("lux let" (~ [_ (#.Nat register)]) (~ inputS) (~ exprS)))
(caseT.translate-let translate register inputS exprS)
(^code ("lux case" (~ inputS) (~ pathPS)))
(caseT.translate-case translate inputS pathPS)
(^code ("lux function" (~ [_ (#.Nat arity)]) [(~+ environment)] (~ bodyS)))
(case (s.run environment (p.some s.int))
(#e.Success environment)
(functionT.translate-function translate environment arity bodyS)
_
(&.throw Invalid-Function-Syntax (%code synthesis)))
(^code ("lux call" (~ functionS) (~+ argsS)))
(functionT.translate-apply translate functionS argsS)
(^code ((~ [_ (#.Text procedure)]) (~+ argsS)))
(procedureT.translate-procedure translate procedure argsS)
## (do macro.Monad<Meta>
## [translation (extensionL.find-translation procedure)]
## (translation argsS))
_
(&.throw Unrecognized-Synthesis (%code synthesis))))
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