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(.module:
[library
[lux #*
[abstract
["." monad (#+ do)]]
[data
[collection
["." list]]]
[target
["_" php (#+ Expression)]]]]
["." // #_
["#." runtime (#+ Operation Phase Generator)]
["#." primitive]
["///#" //// #_
[analysis (#+ Variant Tuple)]
["#." synthesis (#+ Synthesis)]
["//#" /// #_
["#." phase ("#\." monad)]]]])
(def: #export (tuple expression archive elemsS+)
(Generator (Tuple Synthesis))
(case elemsS+
#.Nil
(///////phase\wrap (//primitive.text /////synthesis.unit))
(#.Cons singletonS #.Nil)
(expression archive singletonS)
_
(let [size (_.int (.int (list.size elemsS+)))]
(|> elemsS+
(monad.map ///////phase.monad (expression archive))
(///////phase\map (|>> _.array/*
(//runtime.tuple//make size)))))))
(def: #export (variant expression archive [lefts right? valueS])
(Generator (Variant Synthesis))
(let [tag (if right?
(inc lefts)
lefts)]
(///////phase\map (//runtime.variant tag right?)
(expression archive valueS))))
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