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(ns lux.analyser.case
(:require [clojure.core.match :refer [match]]
(lux [base :as & :refer [exec return fail
try-all-m map-m mapcat-m reduce-m
assert!]]
[parser :as &parser]
[type :as &type])
(lux.analyser [base :as &&]
[env :as &env])))
;; [Resources]
(defn locals [member]
(match member
[::&parser/Ident ?name]
(list ?name)
[::&parser/Tuple ?submembers]
(mapcat locals ?submembers)
[::&parser/Form ([[::&parser/Tag _] & ?submembers] :seq)]
(mapcat locals ?submembers)
_
(list)))
(defn analyse-branch [analyse max-registers [bindings body]]
;; (prn 'analyse-branch max-registers bindings body)
(reduce (fn [body* name]
(&env/with-local name &type/+dont-care-type+ body*))
(reduce (fn [body* _]
(&env/with-local "" &type/+dont-care-type+ body*))
(&&/analyse-1 analyse body)
(range (- max-registers (count bindings))))
(reverse bindings)))
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