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... This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
... If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
(.require
[library
[lux (.except Scope Synthesis)
[abstract
["[0]" monad (.only do)]]
[data
["[0]" product]
["[0]" text (.only)
["%" \\format (.only format)]]
[collection
["[0]" list (.use "[1]#[0]" functor mix)]]]
[math
[number
["n" nat]]]
[meta
[compiler
[target
["_" js (.only Computation Var Expression Statement)]]]]]]
["[0]" //
[runtime (.only Operation Phase Phase! Translator Translator!)]
["[1][0]" when]
["///[1]" ////
[synthesis (.only Scope Synthesis)]
["[0]" phase]
["[1][0]" translation]
[///
[reference
[variable (.only Register)]]]]])
(def @scope
(-> Nat Text)
(|>> %.nat (format "scope")))
(def $iteration
(-> Nat Var)
(|>> %.nat (format "iteration") _.var))
(def (setup $iteration initial? offset bindings body)
(-> Var Bit Register (List Expression) Statement Statement)
(when bindings
(list)
body
(list binding)
(let [$binding (//when.register offset)]
(all _.then
(if initial?
(_.define $binding binding)
(_.statement (_.set $binding binding)))
body
))
_
(|> bindings
list.enumeration
(list#each (function (_ [register _])
(let [variable (//when.register (n.+ offset register))]
(if initial?
(_.define variable (_.at (_.i32 (.int register)) $iteration))
(_.statement (_.set variable (_.at (_.i32 (.int register)) $iteration)))))))
list.reversed
(list#mix _.then body)
(_.then (_.define $iteration (_.array bindings))))))
(def .public (scope! statement expression archive [start initsS+ bodyS])
(Translator! (Scope Synthesis))
(when initsS+
... function/false/non-independent loop
{.#End}
(statement expression archive bodyS)
... true loop
_
(do [! phase.monad]
[@scope (of ! each ..@scope /////translation.next)
initsO+ (monad.each ! (expression archive) initsS+)
body! (/////translation.with_anchor [start @scope]
(statement expression archive bodyS))
$iteration (of ! each ..$iteration /////translation.next)]
(in (..setup $iteration
true start
initsO+
(_.with_label (_.label @scope)
(_.do_while (_.boolean true)
body!)))))))
(def .public (scope statement expression archive [start initsS+ bodyS])
(-> Phase! (Translator (Scope Synthesis)))
(when initsS+
... function/false/non-independent loop
{.#End}
(expression archive bodyS)
... true loop
_
(do [! phase.monad]
[loop! (scope! statement expression archive [start initsS+ bodyS])]
(in (_.apply (_.closure (list) loop!) (list))))))
(def @temp
(_.var "lux_again_values"))
(def .public (again! statement expression archive argsS+)
(Translator! (List Synthesis))
(do [! phase.monad]
[[offset @scope] /////translation.anchor
argsO+ (monad.each ! (expression archive) argsS+)
$iteration (of ! each ..$iteration /////translation.next)]
(in (all _.then
(_.define @temp (_.array argsO+))
(..setup $iteration
false offset
(|> argsO+
list.enumeration
(list#each (function (_ [idx _])
(_.at (_.i32 (.int idx)) @temp))))
(_.continue_at (_.label @scope)))))))
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