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|
(.module:
lux
(lux (control [monad #+ do])
(data [text]
text/format
(coll [list "list/" Functor<List> Monoid<List>]))
[macro])
(luxc ["&" lang]
(lang [".L" host]
(host ["$" jvm]
(jvm ["$t" type]
["$d" def]
["$i" inst]))
["la" analysis]
["ls" synthesis]
[".L" variable #+ Variable]))
(// [".T" common]
[".T" runtime]
[".T" reference]))
(def: arity-field Text "arity")
(def: $Object $.Type ($t.class "java.lang.Object" (list)))
(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 runtimeT.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 $.Inst)
(let [max-args (n/min amount runtimeT.num-apply-variants)
later-applysI (if (n/> runtimeT.num-apply-variants amount)
(applysI (n/+ runtimeT.num-apply-variants start) (n/- runtimeT.num-apply-variants amount))
id)]
(|>> ($i.CHECKCAST hostL.function-class)
(inputsI start max-args)
($i.INVOKEVIRTUAL hostL.function-class runtimeT.apply-method (runtimeT.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 (referenceT.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 (referenceT.partial idx) $Object)))
$d.fuse)
id))
(def: (instance class arity env)
(-> Text ls.Arity (List Variable) (Meta $.Inst))
(do macro.Monad<Meta>
[captureI+ (monad.map @ referenceT.translate-variable env)
#let [argsI (if (poly-arg? arity)
(|> (nullsI (n/dec arity))
(list ($i.int 0))
$i.fuse)
id)]]
(wrap (|>> ($i.NEW class)
$i.DUP
($i.fuse 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 (referenceT.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 (referenceT.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 (referenceT.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 (|>> referenceT.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 (|>> referenceT.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 $.noneM runtimeT.apply-method (runtimeT.apply-signature apply-arity)
(|>> get-amount-of-partialsI
($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 @begin class env arity bodyI)
(-> $.Label Text (List Variable) ls.Arity $.Inst
(Meta [$.Def $.Inst]))
(let [env-size (list.size env)
applyD (: $.Def
(if (poly-arg? arity)
(|> (n/min arity runtimeT.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 $.strictM runtimeT.apply-method (runtimeT.apply-signature +1)
(|>> ($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
))]
(do macro.Monad<Meta>
[instanceI (instance class arity env)]
(wrap [functionD instanceI]))))
(def: #export (translate-function translate env arity bodyS)
(-> (-> ls.Synthesis (Meta $.Inst))
(List Variable) ls.Arity ls.Synthesis
(Meta $.Inst))
(do macro.Monad<Meta>
[@begin $i.make-label
[function-class bodyI] (hostL.with-sub-context
(hostL.with-anchor [@begin +1]
(translate bodyS)))
this-module macro.current-module-name
#let [function-class (format (text.replace-all "/" "." this-module) "." function-class)]
[functionD instanceI] (with-function @begin function-class env arity bodyI)
_ (commonT.store-class function-class
($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 (translate-call translate functionS argsS)
(-> (-> ls.Synthesis (Meta $.Inst))
ls.Synthesis (List ls.Synthesis)
(Meta $.Inst))
(do macro.Monad<Meta>
[functionI (translate functionS)
argsI (monad.map @ translate argsS)
#let [applyI (|> (segment runtimeT.num-apply-variants argsI)
(list/map (function (_ chunkI+)
(|>> ($i.CHECKCAST hostL.function-class)
($i.fuse chunkI+)
($i.INVOKEVIRTUAL hostL.function-class runtimeT.apply-method (runtimeT.apply-signature (list.size chunkI+)) false))))
$i.fuse)]]
(wrap (|>> functionI
applyI))))
|
