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|
(;module:
lux
(lux (control [monad #+ do])
(data text/format
(coll [list "list/" Functor<List> Monoid<List>]))
[meta])
(luxc ["&" base]
[";L" host]
(host ["$" jvm]
(jvm ["$t" type]
["$d" def]
["$i" inst]))
(lang ["la" analysis]
["ls" synthesis]
[";L" variable #+ Variable])
["&;" analyser]
["&;" synthesizer]
(generator ["&;" common]
["&;" runtime])))
(def: arity-field Text "arity")
(def: $Object $;Type ($t;class "java.lang.Object" (list)))
(do-template [<name> <prefix>]
[(def: #export (<name> idx)
(-> Nat Text)
(|> idx nat-to-int %i (format <prefix>)))]
[captured "c"]
[partial "p"]
)
(def: (poly-arg? arity)
(-> ls;Arity Bool)
(n.> +1 arity))
(def: (reset-method class)
(-> Text $;Method)
($t;method (list) (#;Some ($t;class class (list))) (list)))
(def: (captured-args env)
(-> (List Variable) (List $;Type))
(list;repeat (list;size env) $Object))
(def: (init-method env arity)
(-> (List Variable) ls;Arity $;Method)
(if (poly-arg? arity)
($t;method (list;concat (list (captured-args env)
(list $t;int)
(list;repeat (n.dec arity) $Object)))
#;None
(list))
($t;method (captured-args env) #;None (list))))
(def: (implementation-method arity)
($t;method (list;repeat arity $Object) (#;Some $Object) (list)))
(def: get-amount-of-partialsI
$;Inst
(|>. ($i;ALOAD +0)
($i;GETFIELD hostL;function-class &runtime;partials-field $t;int)))
(def: (load-fieldI class field)
(-> Text Text $;Inst)
(|>. ($i;ALOAD +0)
($i;GETFIELD class field $Object)))
(def: (inputsI start amount)
(-> $;Register Nat $;Inst)
(|> (list;n.range start (n.+ start (n.dec amount)))
(list/map $i;ALOAD)
$i;fuse))
(def: (applysI start amount)
(-> $;Register Nat $;Inst)
(let [max-args (n.min amount &runtime;num-apply-variants)
later-applysI (if (n.> &runtime;num-apply-variants amount)
(applysI (n.+ &runtime;num-apply-variants start) (n.- &runtime;num-apply-variants amount))
id)]
(|>. ($i;CHECKCAST hostL;function-class)
(inputsI start max-args)
($i;INVOKEVIRTUAL hostL;function-class &runtime;apply-method (&runtime;apply-signature max-args) false)
later-applysI)))
(def: (inc-intI by)
(-> Nat $;Inst)
(|>. ($i;int (nat-to-int by))
$i;IADD))
(def: (nullsI amount)
(-> Nat $;Inst)
(|> $i;NULL
(list;repeat amount)
$i;fuse))
(def: (with-captured env)
(-> (List Variable) $;Def)
(|> (list;enumerate env)
(list/map (function [[env-idx env-source]]
($d;field #$;Private $;finalF (captured env-idx) $Object)))
$d;fuse))
(def: (with-partial arity)
(-> ls;Arity $;Def)
(if (poly-arg? arity)
(|> (list;n.range +0 (n.- +2 arity))
(list/map (function [idx]
($d;field #$;Private $;finalF (partial idx) $Object)))
$d;fuse)
id))
(def: (instance class arity env)
(-> Text ls;Arity (List Variable) $;Inst)
(let [captureI (|> env
(list/map (function [source]
(if (variableL;captured? source)
($i;GETFIELD class (captured (variableL;captured-register source)) $Object)
($i;ALOAD (int-to-nat source)))))
$i;fuse)
argsI (if (poly-arg? arity)
(|> (nullsI (n.dec arity))
(list ($i;int 0))
$i;fuse)
id)]
(|>. ($i;NEW class)
$i;DUP
captureI
argsI
($i;INVOKESPECIAL class "<init>" (init-method env arity) false))))
(def: (with-reset class arity env)
(-> Text ls;Arity (List Variable) $;Def)
($d;method #$;Public $;noneM "reset" (reset-method class)
(if (poly-arg? arity)
(let [env-size (list;size env)
captureI (|> (case env-size
+0 (list)
_ (list;n.range +0 (n.dec env-size)))
(list/map (function [source]
(|>. ($i;ALOAD +0)
($i;GETFIELD class (captured source) $Object))))
$i;fuse)
argsI (|> (nullsI (n.dec arity))
(list ($i;int 0))
$i;fuse)]
(|>. ($i;NEW class)
$i;DUP
captureI
argsI
($i;INVOKESPECIAL class "<init>" (init-method env arity) false)
$i;ARETURN))
(|>. ($i;ALOAD +0)
$i;ARETURN))))
(def: (with-implementation arity @begin bodyI)
(-> Nat $;Label $;Inst $;Def)
($d;method #$;Public $;strictM "impl" (implementation-method arity)
(|>. ($i;label @begin)
bodyI
$i;ARETURN)))
(def: function-init-method
$;Method
($t;method (list $t;int) #;None (list)))
(def: (function-init arity env-size)
(-> ls;Arity Nat $;Inst)
(if (n.= +1 arity)
(|>. ($i;int 0)
($i;INVOKESPECIAL hostL;function-class "<init>" function-init-method false))
(|>. ($i;ILOAD (n.inc env-size))
($i;INVOKESPECIAL hostL;function-class "<init>" function-init-method false))))
(def: (with-init class env arity)
(-> Text (List Variable) ls;Arity $;Def)
(let [env-size (list;size env)
offset-partial (: (-> Nat Nat)
(|>. n.inc (n.+ env-size)))
store-capturedI (|> (case env-size
+0 (list)
_ (list;n.range +0 (n.dec env-size)))
(list/map (function [register]
(|>. ($i;ALOAD +0)
($i;ALOAD (n.inc register))
($i;PUTFIELD class (captured register) $Object))))
$i;fuse)
store-partialI (if (poly-arg? arity)
(|> (list;n.range +0 (n.- +2 arity))
(list/map (function [idx]
(let [register (offset-partial idx)]
(|>. ($i;ALOAD +0)
($i;ALOAD (n.inc register))
($i;PUTFIELD class (partial idx) $Object)))))
$i;fuse)
id)]
($d;method #$;Public $;noneM "<init>" (init-method env arity)
(|>. ($i;ALOAD +0)
(function-init arity env-size)
store-capturedI
store-partialI
$i;RETURN))))
(def: (with-apply class env function-arity @begin bodyI apply-arity)
(-> Text (List Variable) ls;Arity $;Label $;Inst ls;Arity
$;Def)
(let [num-partials (n.dec function-arity)
@default ($;new-label [])
@labels (list/map $;new-label (list;repeat num-partials []))
arity-over-extent (|> (nat-to-int function-arity) (i.- (nat-to-int apply-arity)))
casesI (|> (list/compose @labels (list @default))
(list;zip2 (list;n.range +0 num-partials))
(list/map (function [[stage @label]]
(let [load-partialsI (if (n.> +0 stage)
(|> (list;n.range +0 (n.dec stage))
(list/map (|>. partial (load-fieldI class)))
$i;fuse)
id)]
(cond (i.= arity-over-extent (nat-to-int stage))
(|>. ($i;label @label)
($i;ALOAD +0)
(when (n.> +0 stage)
($i;INVOKEVIRTUAL class "reset" (reset-method class) false))
load-partialsI
(inputsI +1 apply-arity)
($i;INVOKEVIRTUAL class "impl" (implementation-method function-arity) false)
$i;ARETURN)
(i.> arity-over-extent (nat-to-int stage))
(let [args-to-completion (|> function-arity (n.- stage))
args-left (|> apply-arity (n.- args-to-completion))]
(|>. ($i;label @label)
($i;ALOAD +0)
($i;INVOKEVIRTUAL class "reset" (reset-method class) false)
load-partialsI
(inputsI +1 args-to-completion)
($i;INVOKEVIRTUAL class "impl" (implementation-method function-arity) false)
(applysI (n.inc args-to-completion) args-left)
$i;ARETURN))
## (i.< arity-over-extent (nat-to-int stage))
(let [env-size (list;size env)
load-capturedI (|> (case env-size
+0 (list)
_ (list;n.range +0 (n.dec env-size)))
(list/map (|>. captured (load-fieldI class)))
$i;fuse)]
(|>. ($i;label @label)
($i;NEW class)
$i;DUP
load-capturedI
get-amount-of-partialsI
(inc-intI apply-arity)
load-partialsI
(inputsI +1 apply-arity)
(nullsI (|> num-partials (n.- apply-arity) (n.- stage)))
($i;INVOKESPECIAL class "<init>" (init-method env function-arity) false)
$i;ARETURN))
))))
$i;fuse)]
($d;method #$;Public $;noneM &runtime;apply-method (&runtime;apply-signature apply-arity)
(|>. get-amount-of-partialsI
($i;TABLESWITCH 0 (|> num-partials n.dec nat-to-int)
@default @labels)
casesI
($i;INVOKESTATIC hostL;runtime-class "apply_fail" ($t;method (list) #;None (list)) false)
$i;NULL
$i;ARETURN
))))
(def: #export (with-function generate class env arity body)
(-> (-> ls;Synthesis (Meta $;Inst))
Text (List Variable) ls;Arity ls;Synthesis
(Meta [$;Def $;Inst]))
(do meta;Monad<Meta>
[@begin $i;make-label
bodyI (&common;with-function class (generate body))
#let [env-size (list;size env)
applyD (: $;Def
(if (poly-arg? arity)
(|> (n.min arity &runtime;num-apply-variants)
(list;n.range +1)
(list/map (with-apply class env arity @begin bodyI))
(list& (with-implementation arity @begin bodyI))
$d;fuse)
($d;method #$;Public $;strictM &runtime;apply-method (&runtime;apply-signature +1)
(|>. ($i;label @begin)
bodyI
$i;ARETURN))))
functionD (: $;Def
(|>. ($d;int-field #$;Public ($_ $;++F $;staticF $;finalF) arity-field (nat-to-int arity))
(with-captured env)
(with-partial arity)
(with-init class env arity)
(with-reset class arity env)
applyD))
instanceI (instance class arity env)]]
(wrap [functionD instanceI])))
(def: #export (generate-function generate env arity body)
(-> (-> ls;Synthesis (Meta $;Inst))
(List Variable) ls;Arity ls;Synthesis
(Meta $;Inst))
(do meta;Monad<Meta>
[function-class (:: @ map %code (meta;gensym "function"))
[functionD instanceI] (with-function generate function-class env arity body)
_ (&common;store-class function-class
($d;class #$;V1.6 #$;Public $;finalC
function-class (list)
($;simple-class hostL;function-class) (list)
functionD))]
(wrap instanceI)))
(def: (segment size elems)
(All [a] (-> Nat (List a) (List (List a))))
(let [[pre post] (list;split size elems)]
(if (list;empty? post)
(list pre)
(list& pre (segment size post)))))
(def: #export (generate-call generate functionS argsS)
(-> (-> ls;Synthesis (Meta $;Inst))
ls;Synthesis (List ls;Synthesis)
(Meta $;Inst))
(do meta;Monad<Meta>
[functionI (generate functionS)
argsI (monad;map @ generate argsS)
#let [applyI (|> (segment &runtime;num-apply-variants argsI)
(list/map (function [chunkI+]
(|>. ($i;CHECKCAST hostL;function-class)
($i;fuse chunkI+)
($i;INVOKEVIRTUAL hostL;function-class &runtime;apply-method (&runtime;apply-signature (list;size chunkI+)) false))))
$i;fuse)]]
(wrap (|>. functionI
applyI))))
|
