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(.module:
[library
[lux #*
[abstract
[monad (#+ do)]]
[control
[pipe (#+ case>)]
["." exception (#+ exception:)]
["<>" parser
["<b>" binary (#+ Parser)]]]
[data
["." product]
["." text
["%" format (#+ format)]]
[collection
["." list]
["." row (#+ Row) ("#\." functor fold)]
["." dictionary (#+ Dictionary)]]
[format
["." binary (#+ Writer)]]]
[type
abstract]]])
(type: #export ID
Nat)
(type: #export Category
#Anonymous
(#Definition Text)
(#Analyser Text)
(#Synthesizer Text)
(#Generator Text)
(#Directive Text))
(type: #export Artifact
{#id ID
#category Category})
(abstract: #export Registry
{#artifacts (Row Artifact)
#resolver (Dictionary Text ID)}
(def: #export empty
Registry
(:abstraction {#artifacts row.empty
#resolver (dictionary.new text.hash)}))
(def: #export artifacts
(-> Registry (Row Artifact))
(|>> :representation (get@ #artifacts)))
(def: next
(-> Registry ID)
(|>> ..artifacts row.size))
(def: #export (resource registry)
(-> Registry [ID Registry])
(let [id (..next registry)]
[id
(|> registry
:representation
(update@ #artifacts (row.add {#id id
#category #Anonymous}))
:abstraction)]))
(template [<tag> <create> <fetch>]
[(def: #export (<create> name registry)
(-> Text Registry [ID Registry])
(let [id (..next registry)]
[id
(|> registry
:representation
(update@ #artifacts (row.add {#id id
#category (<tag> name)}))
(update@ #resolver (dictionary.put name id))
:abstraction)]))
(def: #export (<fetch> registry)
(-> Registry (List Text))
(|> registry
:representation
(get@ #artifacts)
row.to_list
(list.all (|>> (get@ #category)
(case> (<tag> name) (#.Some name)
_ #.None)))))]
[#Definition definition definitions]
[#Analyser analyser analysers]
[#Synthesizer synthesizer synthesizers]
[#Generator generator generators]
[#Directive directive directives]
)
(def: #export (remember name registry)
(-> Text Registry (Maybe ID))
(|> (:representation registry)
(get@ #resolver)
(dictionary.get name)))
(def: #export writer
(Writer Registry)
(let [category (: (Writer Category)
(function (_ value)
(case value
(^template [<nat> <tag> <writer>]
[(<tag> value) ((binary.and binary.nat <writer>) [<nat> value])])
([0 #Anonymous binary.any]
[1 #Definition binary.text]
[2 #Analyser binary.text]
[3 #Synthesizer binary.text]
[4 #Generator binary.text]
[5 #Directive binary.text]))))
artifacts (: (Writer (Row Category))
(binary.row/64 category))]
(|>> :representation
(get@ #artifacts)
(row\map (get@ #category))
artifacts)))
(exception: #export (invalid_category {tag Nat})
(exception.report
["Tag" (%.nat tag)]))
(def: #export parser
(Parser Registry)
(let [category (: (Parser Category)
(do {! <>.monad}
[tag <b>.nat]
(case tag
0 (\ ! map (|>> #Anonymous) <b>.any)
1 (\ ! map (|>> #Definition) <b>.text)
2 (\ ! map (|>> #Analyser) <b>.text)
3 (\ ! map (|>> #Synthesizer) <b>.text)
4 (\ ! map (|>> #Generator) <b>.text)
5 (\ ! map (|>> #Directive) <b>.text)
_ (<>.fail (exception.construct ..invalid_category [tag])))))]
(|> (<b>.row/64 category)
(\ <>.monad map (row\fold (function (_ artifact registry)
(product.right
(case artifact
#Anonymous
(..resource registry)
(^template [<tag> <create>]
[(<tag> name)
(<create> name registry)])
([#Definition ..definition]
[#Analyser ..analyser]
[#Synthesizer ..synthesizer]
[#Generator ..generator]
[#Directive ..directive])
)))
..empty)))))
)
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