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|
(;module:
lux
(lux (control monad)
(data ["R" result]
text/format)
[macro #+ Monad<Lux> "Lux/" Monad<Lux>]
[host #+ jvm-import do-to])
(luxc ["&" base]
(lang ["la" analysis]
["ls" synthesis])
["&;" analyser]
["&;" synthesizer]
(generator ["&;" common]
(host ["$" jvm]
(jvm ["$t" type]
["$d" def]
["$i" inst])))))
(jvm-import java.lang.Object)
(jvm-import java.lang.String)
(jvm-import java.lang.reflect.Field
(get [Object] #try Object))
(jvm-import (java.lang.Class a)
(getField [String] Field))
(jvm-import org.objectweb.asm.Opcodes
(#static ACC_PUBLIC int)
(#static ACC_SUPER int)
(#static ACC_FINAL int)
(#static ACC_STATIC int)
(#static V1_6 int))
(jvm-import org.objectweb.asm.ClassWriter
(#static COMPUTE_MAXS int)
(new [int])
(visit [int int String String String (Array String)] void)
(visitEnd [] void)
(toByteArray [] Byte-Array))
(def: #export runtime-name Text "LuxRuntime")
(def: #export function-name Text "LuxFunction")
(def: #export unit Text "\u0000")
(def: $Object $;Type ($t;class "java.lang.Object" (list)))
(def: logI
$;Inst
(let [outI ($i;GETSTATIC "java.lang.System" "out" ($t;class "java.io.PrintStream" (list)))
printI (function [method] ($i;INVOKEVIRTUAL "java.io.PrintStream" method ($t;method (list $Object) #;None (list)) false))]
(|>. outI ($i;string "LOG: ") (printI "print")
outI $i;SWAP (printI "println"))))
(def: add-adt-methods
$;Def
(let [store-tag (|>. $i;DUP ($i;int 0) ($i;ILOAD +0) $i;wrap-int $i;AASTORE)
store-flag (|>. $i;DUP ($i;int 1) ($i;ALOAD +1) $i;AASTORE)
store-value (|>. $i;DUP ($i;int 2) ($i;ALOAD +2) $i;AASTORE)]
(|>. ($d;method #$;Public $;staticM "sum_make"
($t;method (list $t;int $Object $Object)
(#;Some ($t;array +1 $Object))
(list))
(|>. ($i;array $Object +3)
store-tag
store-flag
store-value
$i;ARETURN)))))
(def: add-nat-methods
$;Def
(let [compare-nat-method ($t;method (list $t;long $t;long) (#;Some $t;int) (list))
less-thanI (function [@where] (|>. ($i;INVOKESTATIC runtime-name "compare_nat" compare-nat-method false) ($i;IFLT @where)))
$BigInteger ($t;class "java.math.BigInteger" (list))
upcast-method ($t;method (list $t;long) (#;Some $BigInteger) (list))
div-method ($t;method (list $t;long $t;long) (#;Some $t;long) (list))
upcastI ($i;INVOKESTATIC runtime-name "_toUnsignedBigInteger" upcast-method false)
downcastI ($i;INVOKEVIRTUAL "java.math.BigInteger" "longValue" ($t;method (list) (#;Some $t;long) (list)) false)]
## http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/8u40-b25/java/lang/Long.java#215
(|>. ($d;method #$;Public $;staticM "_toUnsignedBigInteger" upcast-method
(let [upcastI ($i;INVOKESTATIC "java.math.BigInteger" "valueOf" upcast-method false)
discernI (function [@where] (|>. ($i;LLOAD +0) ($i;long 0) $i;LCMP ($i;IFGE @where)))
prepare-upperI (|>. ($i;LLOAD +0) ($i;int 32) $i;LUSHR
upcastI
($i;int 32) ($i;INVOKEVIRTUAL "java.math.BigInteger" "shiftLeft" ($t;method (list $t;int) (#;Some $BigInteger) (list)) false))
prepare-lowerI (|>. ($i;LLOAD +0) ($i;int 32) $i;LSHL
($i;int 32) $i;LUSHR
upcastI)]
(<| $i;with-label (function [@simple])
(|>. (discernI @simple)
## else
prepare-upperI
prepare-lowerI
($i;INVOKEVIRTUAL "java.math.BigInteger" "add" ($t;method (list $BigInteger) (#;Some $BigInteger) (list)) false)
$i;ARETURN
## then
($i;label @simple)
($i;LLOAD +0)
upcastI
$i;ARETURN))))
## http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/8u40-b25/java/lang/Long.java?av=f#1267
($d;method #$;Public $;staticM "compare_nat" compare-nat-method
(let [shiftI (|>. ($i;GETSTATIC "java.lang.Long" "MIN_VALUE" $t;long) $i;LADD)]
(|>. ($i;LLOAD +0) shiftI
($i;LLOAD +2) shiftI
$i;LCMP
$i;IRETURN)))
## http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/8u40-b25/java/lang/Long.java#1290
($d;method #$;Public $;staticM "div_nat" div-method
(let [is-param-largeI (function [@where] (|>. ($i;LLOAD +2) ($i;long 0) $i;LCMP ($i;IFLT @where)))
is-subject-smallI (function [@where] (|>. ($i;LLOAD +0) ($i;long 0) $i;LCMP ($i;IFGT @where)))
small-division (|>. ($i;LLOAD +0) ($i;LLOAD +2) $i;LDIV $i;LRETURN)
big-divisionI ($i;INVOKEVIRTUAL "java.math.BigInteger" "divide" ($t;method (list $BigInteger) (#;Some $BigInteger) (list)) false)]
(<| $i;with-label (function [@is-zero])
$i;with-label (function [@param-is-large])
$i;with-label (function [@subject-is-small])
(|>. (is-param-largeI @param-is-large)
## Param is not too large
(is-subject-smallI @subject-is-small)
## Param is small, but subject is large
($i;LLOAD +0) upcastI
($i;LLOAD +2) upcastI
big-divisionI downcastI $i;LRETURN
## Both param and subject are small,
## and can thus be divided normally.
($i;label @subject-is-small)
small-division
## Param is too large. Cannot simply divide.
## Depending on the result of the
## comparison, a result will be determined.
($i;label @param-is-large)
($i;LLOAD +0) ($i;LLOAD +2) (less-thanI @is-zero)
## Greater-than or equals
($i;long 1) $i;LRETURN
## Less than
($i;label @is-zero)
($i;long 0) $i;LRETURN))))
## http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/8u40-b25/java/lang/Long.java#1323
($d;method #$;Public $;staticM "rem_nat" div-method
(let [is-subject-largeI (function [@where] (|>. ($i;LLOAD +0) ($i;long 0) $i;LCMP ($i;IFLE @where)))
is-param-largeI (function [@where] (|>. ($i;LLOAD +2) ($i;long 0) $i;LCMP ($i;IFLE @where)))
small-remainderI (|>. ($i;LLOAD +0) ($i;LLOAD +2) $i;LREM $i;LRETURN)
big-remainderI ($i;INVOKEVIRTUAL "java.math.BigInteger" "remainder" ($t;method (list $BigInteger) (#;Some $BigInteger) (list)) false)]
(<| $i;with-label (function [@large-number])
$i;with-label (function [@subject-is-smaller-than-param])
(|>. (is-subject-largeI @large-number)
(is-param-largeI @large-number)
small-remainderI
($i;label @large-number)
($i;LLOAD +0) ($i;LLOAD +2) (less-thanI @subject-is-smaller-than-param)
($i;LLOAD +0) upcastI
($i;LLOAD +2) upcastI
big-remainderI downcastI $i;LRETURN
($i;label @subject-is-smaller-than-param)
($i;LLOAD +0)
$i;LRETURN))))
)))
(def: init-method $;Method ($t;method (list) #;None (list)))
(def: #export generate
(Lux &common;Bytecode)
(do Monad<Lux>
[_ (wrap [])
#let [bytecode ($d;class #$;V1.6 #$;Public $;finalC runtime-name (list) ["java.lang.Object" (list)] (list)
(|>. add-adt-methods
add-nat-methods
))]
_ (&common;store-class runtime-name bytecode)]
(wrap bytecode)))
|
