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|
(.module:
[lux (#- Type)
[abstract
[monad (#+ do)]]
[data
[text
["%" format (#+ format)]]
[collection
["." list ("#@." functor)]]]
["." math]
[target
[jvm
["." type (#+ Type)
["." category (#+ Void Value' Value Return' Return Primitive Object Class Array Var Parameter Method)]
["." reflection]]]]
[tool
[compiler
[arity (#+ Arity)]
["." phase]
[language
[lux
["." synthesis]
["." generation]]]]]]
[luxc
[lang
[host
["$" jvm (#+ Label Inst Def Operation)
["$d" def]
["_" inst]]]]]
["." // (#+ ByteCode)])
(def: $Text (type.class "java.lang.String" (list)))
(def: #export $Tag type.int)
(def: #export $Flag (type.class "java.lang.Object" (list)))
(def: #export $Value (type.class "java.lang.Object" (list)))
(def: #export $Index type.int)
(def: #export $Stack (type.array $Value))
(def: $Throwable (type.class "java.lang.Throwable" (list)))
(def: nullary-init-methodT
(type.method [(list) type.void (list)]))
(def: throw-methodT
(type.method [(list) type.void (list)]))
(def: #export logI
Inst
(let [PrintStream (type.class "java.io.PrintStream" (list))
outI (_.GETSTATIC (type.class "java.lang.System" (list)) "out" PrintStream)
printI (function (_ method)
(_.INVOKEVIRTUAL PrintStream method (type.method [(list $Value) type.void (list)])))]
(|>> outI (_.string "LOG: ") (printI "print")
outI _.SWAP (printI "println"))))
(def: variant-method
(type.method [(list $Tag $Flag $Value) //.$Variant (list)]))
(def: #export variantI
Inst
(_.INVOKESTATIC //.$Runtime "variant_make" variant-method))
(def: #export leftI
Inst
(|>> (_.int +0)
_.NULL
_.DUP2_X1
_.POP2
variantI))
(def: #export rightI
Inst
(|>> (_.int +1)
(_.string "")
_.DUP2_X1
_.POP2
variantI))
(def: #export someI Inst rightI)
(def: #export noneI
Inst
(|>> (_.int +0)
_.NULL
(_.string synthesis.unit)
variantI))
(def: (tryI unsafeI)
(-> Inst Inst)
(<| _.with-label (function (_ @from))
_.with-label (function (_ @to))
_.with-label (function (_ @handler))
(|>> (_.try @from @to @handler (type.class "java.lang.Exception" (list)))
(_.label @from)
unsafeI
someI
_.ARETURN
(_.label @to)
(_.label @handler)
noneI
_.ARETURN)))
(def: #export partials-field Text "partials")
(def: #export apply-method Text "apply")
(def: #export num-apply-variants Nat 8)
(def: #export (apply-signature arity)
(-> Arity (Type Method))
(type.method [(list.repeat arity $Value) $Value (list)]))
(def: adt-methods
Def
(let [store-tagI (|>> _.DUP (_.int +0) (_.ILOAD 0) (_.wrap type.int) _.AASTORE)
store-flagI (|>> _.DUP (_.int +1) (_.ALOAD 1) _.AASTORE)
store-valueI (|>> _.DUP (_.int +2) (_.ALOAD 2) _.AASTORE)]
(|>> ($d.method #$.Public $.staticM "variant_make"
(type.method [(list $Tag $Flag $Value) //.$Variant (list)])
(|>> (_.int +3)
(_.ANEWARRAY $Value)
store-tagI
store-flagI
store-valueI
_.ARETURN)))))
(def: frac-methods
Def
(|>> ($d.method #$.Public $.staticM "decode_frac" (type.method [(list $Text) //.$Variant (list)])
(tryI
(|>> (_.ALOAD 0)
(_.INVOKESTATIC (type.class "java.lang.Double" (list)) "parseDouble" (type.method [(list $Text) type.double (list)]))
(_.wrap type.double))))
))
(def: (illegal-state-exception message)
(-> Text Inst)
(let [IllegalStateException (type.class "java.lang.IllegalStateException" (list))]
(|>> (_.NEW IllegalStateException)
_.DUP
(_.string message)
(_.INVOKESPECIAL IllegalStateException "<init>" (type.method [(list $Text) type.void (list)])))))
(def: pm-methods
Def
(let [tuple-sizeI (|>> (_.ALOAD 0) _.ARRAYLENGTH)
last-rightI (|>> tuple-sizeI (_.int +1) _.ISUB)
leftsI (_.ILOAD 1)
left-indexI leftsI
sub-leftsI (|>> leftsI
last-rightI
_.ISUB)
sub-tupleI (|>> (_.ALOAD 0) last-rightI _.AALOAD (_.CHECKCAST //.$Tuple))
recurI (: (-> Label Inst)
(function (_ @loop)
(|>> sub-leftsI (_.ISTORE 1)
sub-tupleI (_.ASTORE 0)
(_.GOTO @loop))))]
(|>> ($d.method #$.Public $.staticM "pm_fail" throw-methodT
(|>> (illegal-state-exception "Invalid expression for pattern-matching.")
_.ATHROW))
($d.method #$.Public $.staticM "apply_fail" throw-methodT
(|>> (illegal-state-exception "Error while applying function.")
_.ATHROW))
($d.method #$.Public $.staticM "pm_push" (type.method [(list $Stack $Value) $Stack (list)])
(|>> (_.int +2)
(_.ANEWARRAY $Value)
_.DUP
(_.int +1)
(_.ALOAD 0)
_.AASTORE
_.DUP
(_.int +0)
(_.ALOAD 1)
_.AASTORE
_.ARETURN))
($d.method #$.Public $.staticM "pm_variant" (type.method [(list //.$Variant $Tag $Flag) $Value (list)])
(<| _.with-label (function (_ @loop))
_.with-label (function (_ @perfect-match!))
_.with-label (function (_ @tags-match!))
_.with-label (function (_ @maybe-nested))
_.with-label (function (_ @mismatch!))
(let [$variant (_.ALOAD 0)
$tag (_.ILOAD 1)
$last? (_.ALOAD 2)
variant-partI (: (-> Nat Inst)
(function (_ idx)
(|>> (_.int (.int idx)) _.AALOAD)))
::tag (: Inst
(|>> (variant-partI 0) (_.unwrap type.int)))
::last? (variant-partI 1)
::value (variant-partI 2)
super-nested-tag (|>> _.SWAP ## variant::tag, tag
_.ISUB)
super-nested (|>> super-nested-tag ## super-tag
$variant ::last? ## super-tag, super-last
$variant ::value ## super-tag, super-last, super-value
..variantI)
update-$tag _.ISUB
update-$variant (|>> $variant ::value
(_.CHECKCAST //.$Variant)
(_.ASTORE 0))
iterate! (: (-> Label Inst)
(function (_ @loop)
(|>> update-$variant
update-$tag
(_.GOTO @loop))))
not-found _.NULL])
(|>> $tag ## tag
(_.label @loop)
$variant ::tag ## tag, variant::tag
_.DUP2 (_.IF_ICMPEQ @tags-match!) ## tag, variant::tag
_.DUP2 (_.IF_ICMPGT @maybe-nested) ## tag, variant::tag
$last? (_.IFNULL @mismatch!) ## tag, variant::tag
super-nested ## super-variant
_.ARETURN
(_.label @tags-match!) ## tag, variant::tag
$last? ## tag, variant::tag, last?
$variant ::last? ## tag, variant::tag, last?, variant::last?
(_.IF_ACMPEQ @perfect-match!) ## tag, variant::tag
(_.label @maybe-nested) ## tag, variant::tag
$variant ::last? ## tag, variant::tag, variant::last?
(_.IFNULL @mismatch!) ## tag, variant::tag
(iterate! @loop)
(_.label @perfect-match!) ## tag, variant::tag
## _.POP2
$variant ::value
_.ARETURN
(_.label @mismatch!) ## tag, variant::tag
## _.POP2
not-found
_.ARETURN)))
($d.method #$.Public $.staticM "tuple_left" (type.method [(list //.$Tuple $Index) $Value (list)])
(<| _.with-label (function (_ @loop))
_.with-label (function (_ @recursive))
(let [left-accessI (|>> (_.ALOAD 0) left-indexI _.AALOAD)])
(|>> (_.label @loop)
leftsI last-rightI (_.IF_ICMPGE @recursive)
left-accessI
_.ARETURN
(_.label @recursive)
## Recursive
(recurI @loop))))
($d.method #$.Public $.staticM "tuple_right" (type.method [(list //.$Tuple $Index) $Value (list)])
(<| _.with-label (function (_ @loop))
_.with-label (function (_ @not-tail))
_.with-label (function (_ @slice))
(let [right-indexI (|>> leftsI
(_.int +1)
_.IADD)
right-accessI (|>> (_.ALOAD 0)
_.SWAP
_.AALOAD)
sub-rightI (|>> (_.ALOAD 0)
right-indexI
tuple-sizeI
(_.INVOKESTATIC (type.class "java.util.Arrays" (list)) "copyOfRange"
(type.method [(list //.$Tuple $Index $Index)
//.$Tuple
(list)])))])
(|>> (_.label @loop)
last-rightI right-indexI
_.DUP2 (_.IF_ICMPNE @not-tail)
## _.POP
right-accessI
_.ARETURN
(_.label @not-tail)
(_.IF_ICMPGT @slice)
## Must recurse
(recurI @loop)
(_.label @slice)
sub-rightI
_.ARETURN
)))
)))
(def: #export try (type.method [(list //.$Function) //.$Variant (list)]))
(def: io-methods
Def
(let [StringWriter (type.class "java.io.StringWriter" (list))
PrintWriter (type.class "java.io.PrintWriter" (list))
string-writerI (|>> (_.NEW StringWriter)
_.DUP
(_.INVOKESPECIAL StringWriter "<init>" nullary-init-methodT))
print-writerI (|>> (_.NEW PrintWriter)
_.SWAP
_.DUP2
_.POP
_.SWAP
(_.boolean true)
(_.INVOKESPECIAL PrintWriter "<init>" (type.method [(list (type.class "java.io.Writer" (list)) type.boolean) type.void (list)]))
)]
(|>> ($d.method #$.Public $.staticM "try" ..try
(<| _.with-label (function (_ @from))
_.with-label (function (_ @to))
_.with-label (function (_ @handler))
(|>> (_.try @from @to @handler $Throwable)
(_.label @from)
(_.ALOAD 0)
_.NULL
(_.INVOKEVIRTUAL //.$Function apply-method (apply-signature 1))
rightI
_.ARETURN
(_.label @to)
(_.label @handler)
string-writerI ## TW
_.DUP2 ## TWTW
print-writerI ## TWTP
(_.INVOKEVIRTUAL $Throwable "printStackTrace" (type.method [(list (type.class "java.io.PrintWriter" (list))) type.void (list)])) ## TW
(_.INVOKEVIRTUAL StringWriter "toString" (type.method [(list) $Text (list)])) ## TS
_.SWAP _.POP leftI
_.ARETURN)))
)))
(def: reflection
(All [category]
(-> (Type (<| Return' Value' category)) Text))
(|>> type.reflection reflection.reflection))
(def: translate-runtime
(Operation Any)
(let [runtime-class (..reflection //.$Runtime)
bytecode ($d.class #$.V1_6 #$.Public $.finalC runtime-class (list) (type.class "java.lang.Object" (list)) (list)
(|>> adt-methods
frac-methods
pm-methods
io-methods))]
(do phase.monad
[_ (generation.execute! runtime-class [runtime-class bytecode])]
(generation.save! false ["" runtime-class] [runtime-class bytecode]))))
(def: translate-function
(Operation Any)
(let [applyI (|> (list.n/range 2 num-apply-variants)
(list@map (function (_ arity)
($d.method #$.Public $.noneM apply-method (apply-signature arity)
(let [preI (|> (list.n/range 0 (dec arity))
(list@map _.ALOAD)
_.fuse)]
(|>> preI
(_.INVOKEVIRTUAL //.$Function apply-method (apply-signature (dec arity)))
(_.CHECKCAST //.$Function)
(_.ALOAD arity)
(_.INVOKEVIRTUAL //.$Function apply-method (apply-signature 1))
_.ARETURN)))))
(list& ($d.abstract-method #$.Public $.noneM apply-method (apply-signature 1)))
$d.fuse)
$Object (type.class "java.lang.Object" (list))
function-class (..reflection //.$Function)
bytecode ($d.abstract #$.V1_6 #$.Public $.noneC function-class (list) $Object (list)
(|>> ($d.field #$.Public $.finalF partials-field type.int)
($d.method #$.Public $.noneM "<init>" (type.method [(list type.int) type.void (list)])
(|>> (_.ALOAD 0)
(_.INVOKESPECIAL $Object "<init>" nullary-init-methodT)
(_.ALOAD 0)
(_.ILOAD 1)
(_.PUTFIELD //.$Function partials-field type.int)
_.RETURN))
applyI))]
(do phase.monad
[_ (generation.execute! function-class [function-class bytecode])]
(generation.save! false ["" function-class] [function-class bytecode]))))
(def: #export translate
(Operation Any)
(do phase.monad
[_ translate-runtime]
translate-function))
|
