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(.module:
[lux #*
[control
["." monad (#+ do)]]
[host
["_" js (#+ Expression)]]]
[//
["//." runtime (#+ Operation Phase)]
["//." primitive]
["/." ///
[//
[analysis (#+ Variant Tuple)]
["." synthesis (#+ Synthesis)]]]])
(def: #export (tuple translate elemsS+)
(-> Phase (Tuple Synthesis) (Operation Expression))
(case elemsS+
#.Nil
(:: ////.monad wrap (//primitive.text synthesis.unit))
(#.Cons singletonS #.Nil)
(translate singletonS)
_
(do ////.monad
[elemsT+ (monad.map @ translate elemsS+)]
(wrap (_.array elemsT+)))))
(def: #export (variant translate [lefts right? valueS])
(-> Phase (Variant Synthesis) (Operation Expression))
(:: ////.monad map
(//runtime.variant (_.i32 (.int (if right?
(inc lefts)
lefts)))
(//runtime.flag right?))
(translate valueS)))
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