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(ns lux.analyser.def
(:require (clojure [template :refer [do-template]])
[clojure.core.match :as M :refer [matchv]]
clojure.core.match.array
(lux [base :as & :refer [exec return return* fail]])
[lux.analyser.base :as &&]))
;; [Exports]
(def init-module
(&/R "defs" (&/|table)
"macros" (&/|table)))
(do-template [<name> <category>]
(defn <name> [module name]
(fn [state]
(return* state
(->> state (&/get$ "modules") (&/|get module) (&/get$ <category>) (&/|get name) boolean))))
defined? "defs"
macro? "macros"
)
(defn declare-macro [module name]
(fn [state]
(return* (&/update$ "modules" (fn [ms] (&/|update module (fn [m] (&/update$ "macros" #(&/|put name true %) m)) ms)) state)
nil)))
(defn define [module name type]
(fn [state]
(let [full-name (str module &/+name-separator+ name)
bound (&/V "Expression" (&/T (&/V "global" (&/T module name)) type))]
(return* (->> state
(&/update$ "modules" (fn [ms] (&/|update module (fn [m] (&/update$ "defs" #(&/|put name type %) m)) ms)))
(&/update$ "global-env" #(&/|merge (&/|table full-name bound, name bound) %)))
nil))))
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