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|
(.module:
[lux #*
[abstract
["." monad (#+ do)]]
[control
[io (#+ IO)]
["." try]
["." exception (#+ exception:)]
["p" parser
["s" code (#+ Parser)]]]
[data
["." product]
["." maybe]
[text
["%" format (#+ format)]]
[collection
["." dictionary]]]
["." macro
["." code]]
["." type (#+ :share :by-example) ("#@." equivalence)
["." check]]]
["." /// (#+ Extender)
["#." bundle]
["#." analysis]
["#/" //
["#." macro (#+ Expander)]
["#." generation]
[analysis
["." module]
[".A" type]]
["#/" // #_
["#." analysis]
["#." synthesis (#+ Synthesis)]
["#." directive (#+ Import Requirements Phase Operation Handler Bundle)]
[default
["#." evaluation]]]]])
(def: #export (custom [syntax handler])
(All [anchor expression directive s]
(-> [(Parser s)
(-> Text
(Phase anchor expression directive)
s
(Operation anchor expression directive Requirements))]
(Handler anchor expression directive)))
(function (_ extension-name phase inputs)
(case (s.run syntax inputs)
(#try.Success inputs)
(handler extension-name phase inputs)
(#try.Failure error)
(////.throw ///.invalid-syntax [extension-name %.code inputs]))))
## TODO: Inline "evaluate!'" into "evaluate!" ASAP
(def: (evaluate!' generate code//type codeS)
(All [anchor expression directive]
(-> (////generation.Phase anchor expression directive)
Type
Synthesis
(Operation anchor expression directive [Type expression Any])))
(/////directive.lift-generation
(do ////.monad
[codeT (generate codeS)
id ////generation.next
codeV (////generation.evaluate! (format "evaluate" (%.nat id)) codeT)]
(wrap [code//type codeT codeV]))))
(def: #export (evaluate! type codeC)
(All [anchor expression directive]
(-> Type Code (Operation anchor expression directive [Type expression Any])))
(do ////.monad
[state (///.lift ////.get-state)
#let [analyse (get@ [#/////directive.analysis #/////directive.phase] state)
synthesize (get@ [#/////directive.synthesis #/////directive.phase] state)
generate (get@ [#/////directive.generation #/////directive.phase] state)]
[_ codeA] (/////directive.lift-analysis
(/////analysis.with-scope
(typeA.with-fresh-env
(typeA.with-type type
(analyse codeC)))))
codeS (/////directive.lift-synthesis
(synthesize codeA))]
(evaluate!' generate type codeS)))
## TODO: Inline "definition'" into "definition" ASAP
(def: (definition' generate name code//type codeS)
(All [anchor expression directive]
(-> (////generation.Phase anchor expression directive)
Name
Type
Synthesis
(Operation anchor expression directive [Type expression Text Any])))
(/////directive.lift-generation
(do ////.monad
[codeT (generate codeS)
[target-name value directive] (////generation.define! name codeT)
_ (////generation.save! false name directive)]
(wrap [code//type codeT target-name value]))))
(def: (definition name expected codeC)
(All [anchor expression directive]
(-> Name (Maybe Type) Code
(Operation anchor expression directive [Type expression Text Any])))
(do ////.monad
[state (///.lift ////.get-state)
#let [analyse (get@ [#/////directive.analysis #/////directive.phase] state)
synthesize (get@ [#/////directive.synthesis #/////directive.phase] state)
generate (get@ [#/////directive.generation #/////directive.phase] state)]
[_ code//type codeA] (/////directive.lift-analysis
(/////analysis.with-scope
(typeA.with-fresh-env
(case expected
#.None
(do @
[[code//type codeA] (typeA.with-inference (analyse codeC))
code//type (typeA.with-env
(check.clean code//type))]
(wrap [code//type codeA]))
(#.Some expected)
(do @
[codeA (typeA.with-type expected
(analyse codeC))]
(wrap [expected codeA]))))))
codeS (/////directive.lift-synthesis
(synthesize codeA))]
(definition' generate name code//type codeS)))
(def: (refresh expander host-analysis)
(All [anchor expression directive]
(-> Expander /////analysis.Bundle (Operation anchor expression directive Any)))
(do ////.monad
[[bundle state] ////.get-state
#let [eval (/////evaluation.evaluator expander
(get@ [#/////directive.synthesis #/////directive.state] state)
(get@ [#/////directive.generation #/////directive.state] state)
(get@ [#/////directive.generation #/////directive.phase] state))]]
(////.set-state [bundle
(update@ [#/////directive.analysis #/////directive.state]
(: (-> /////analysis.State+ /////analysis.State+)
(|>> product.right
[(///analysis.bundle eval host-analysis)]))
state)])))
(def: (lux::def expander host-analysis)
(-> Expander /////analysis.Bundle Handler)
(function (_ extension-name phase inputsC+)
(case inputsC+
(^ (list [_ (#.Identifier ["" short-name])] valueC annotationsC [_ (#.Bit exported?)]))
(do ////.monad
[current-module (/////directive.lift-analysis
(///.lift macro.current-module-name))
#let [full-name [current-module short-name]]
[type valueT valueN value] (..definition full-name #.None valueC)
[_ annotationsT annotations] (evaluate! Code annotationsC)
_ (/////directive.lift-analysis
(module.define short-name (#.Right [exported? type (:coerce Code annotations) value])))
#let [_ (log! (format "Definition " (%.name full-name)))]
_ (/////directive.lift-generation
(////generation.learn full-name valueN))
_ (..refresh expander host-analysis)]
(wrap /////directive.no-requirements))
_
(////.throw ///.invalid-syntax [extension-name %.code inputsC+]))))
(def: (def::type-tagged expander host-analysis)
(-> Expander /////analysis.Bundle Handler)
(..custom
[($_ p.and s.local-identifier s.any s.any (s.tuple (p.some s.text)) s.bit)
(function (_ extension-name phase [short-name valueC annotationsC tags exported?])
(do ////.monad
[current-module (/////directive.lift-analysis
(///.lift macro.current-module-name))
#let [full-name [current-module short-name]]
[_ annotationsT annotations] (evaluate! Code annotationsC)
#let [annotations (:coerce Code annotations)]
[type valueT valueN value] (..definition full-name (#.Some .Type) valueC)
_ (/////directive.lift-analysis
(do ////.monad
[_ (module.define short-name (#.Right [exported? type annotations value]))]
(module.declare-tags tags exported? (:coerce Type value))))
#let [_ (log! (format "Definition " (%.name full-name)))]
_ (/////directive.lift-generation
(////generation.learn full-name valueN))
_ (..refresh expander host-analysis)]
(wrap /////directive.no-requirements)))]))
(def: imports
(Parser (List Import))
(|> (s.tuple (p.and s.text s.text))
p.some
s.tuple))
(def: def::module
Handler
(..custom
[($_ p.and s.any ..imports)
(function (_ extension-name phase [annotationsC imports])
(do ////.monad
[[_ annotationsT annotationsV] (evaluate! Code annotationsC)
#let [annotationsV (:coerce Code annotationsV)]
_ (/////directive.lift-analysis
(do @
[_ (monad.map @ (function (_ [module alias])
(do @
[_ (module.import module)]
(case alias
"" (wrap [])
_ (module.alias alias module))))
imports)]
(module.set-annotations annotationsV)))]
(wrap {#/////directive.imports imports
#/////directive.referrals (list)})))]))
(exception: #export (cannot-alias-an-alias {local Alias} {foreign Alias} {target Name})
(exception.report
["Local alias" (%.name local)]
["Foreign alias" (%.name foreign)]
["Target definition" (%.name target)]))
(def: (define-alias alias original)
(-> Text Name (/////analysis.Operation Any))
(do ////.monad
[current-module (///.lift macro.current-module-name)
constant (///.lift (macro.find-def original))]
(case constant
(#.Left de-aliased)
(////.throw ..cannot-alias-an-alias [[current-module alias] original de-aliased])
(#.Right [exported? original-type original-annotations original-value])
(module.define alias (#.Left original)))))
(def: def::alias
Handler
(..custom
[($_ p.and s.local-identifier s.identifier)
(function (_ extension-name phase [alias def-name])
(do ////.monad
[_ (///.lift
(////.sub [(get@ [#/////directive.analysis #/////directive.state])
(set@ [#/////directive.analysis #/////directive.state])]
(define-alias alias def-name)))]
(wrap /////directive.no-requirements)))]))
(template [<description> <mame> <type> <scope>]
[(def: (<mame> extender)
(All [anchor expression directive]
(-> Extender
(Handler anchor expression directive)))
(function (handler extension-name phase inputsC+)
(case inputsC+
(^ (list nameC valueC))
(do ////.monad
[[_ _ name] (evaluate! Text nameC)
[_ _ handlerV] (evaluate! (:by-example [anchor expression directive]
{(Handler anchor expression directive)
handler}
<type>)
valueC)
_ (<| <scope>
(///.install extender (:coerce Text name))
(:share [anchor expression directive]
{(Handler anchor expression directive)
handler}
{<type>
(:assume handlerV)}))
#let [_ (log! (format <description> " " (%.text (:coerce Text name))))]]
(wrap /////directive.no-requirements))
_
(////.throw ///.invalid-syntax [extension-name %.code inputsC+]))))]
["Analysis" def::analysis /////analysis.Handler /////directive.lift-analysis]
["Synthesis" def::synthesis /////synthesis.Handler /////directive.lift-synthesis]
["Generation" def::generation (////generation.Handler anchor expression directive) /////directive.lift-generation]
["Directive" def::directive (/////directive.Handler anchor expression directive) (<|)]
)
## TODO; Both "prepare-program" and "define-program" exist only
## because the old compiler couldn"t handle a fully-inlined definition
## for "def::program". Inline them ASAP.
(def: (prepare-program analyse synthesize programC)
(All [anchor expression directive output]
(-> /////analysis.Phase
/////synthesis.Phase
Code
(Operation anchor expression directive Synthesis)))
(do ////.monad
[[_ programA] (/////directive.lift-analysis
(/////analysis.with-scope
(typeA.with-fresh-env
(typeA.with-type (type (-> (List Text) (IO Any)))
(analyse programC)))))]
(/////directive.lift-synthesis
(synthesize programA))))
(def: (define-program generate program programS)
(All [anchor expression directive output]
(-> (////generation.Phase anchor expression directive)
(-> expression directive)
Synthesis
(////generation.Operation anchor expression directive Any)))
(do ////.monad
[programG (generate programS)]
(////generation.save! false ["" ""] (program programG))))
(def: (def::program program)
(All [anchor expression directive]
(-> (-> expression directive) (Handler anchor expression directive)))
(function (handler extension-name phase inputsC+)
(case inputsC+
(^ (list programC))
(do ////.monad
[state (///.lift ////.get-state)
#let [analyse (get@ [#/////directive.analysis #/////directive.phase] state)
synthesize (get@ [#/////directive.synthesis #/////directive.phase] state)
generate (get@ [#/////directive.generation #/////directive.phase] state)]
programS (prepare-program analyse synthesize programC)
_ (/////directive.lift-generation
(define-program generate program programS))]
(wrap /////directive.no-requirements))
_
(////.throw ///.invalid-syntax [extension-name %.code inputsC+]))))
(def: (bundle::def expander host-analysis program extender)
(All [anchor expression directive]
(-> Expander
/////analysis.Bundle
(-> expression directive)
Extender
(Bundle anchor expression directive)))
(<| (///bundle.prefix "def")
(|> ///bundle.empty
(dictionary.put "module" def::module)
(dictionary.put "alias" def::alias)
(dictionary.put "type tagged" (def::type-tagged expander host-analysis))
(dictionary.put "analysis" (def::analysis extender))
(dictionary.put "synthesis" (def::synthesis extender))
(dictionary.put "generation" (def::generation extender))
(dictionary.put "directive" (def::directive extender))
(dictionary.put "program" (def::program program))
)))
(def: #export (bundle expander host-analysis program extender)
(All [anchor expression directive]
(-> Expander
/////analysis.Bundle
(-> expression directive)
Extender
(Bundle anchor expression directive)))
(<| (///bundle.prefix "lux")
(|> ///bundle.empty
(dictionary.put "def" (lux::def expander host-analysis))
(dictionary.merge (..bundle::def expander host-analysis program extender)))))
|