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|
(.module:
lux
(lux (control ["p" parser "p/" Monad<Parser>]
[monad #+ do])
(data [bit]
[number (#+ hex) ("int/" Interval<Int>)]
text/format
(coll [list "list/" Monad<List>]))
[macro]
(macro [code]
["s" syntax #+ syntax:])
[io #+ Process])
[//]
(luxc [lang]
(lang (host [r #+ SVar Expression @@]))))
(def: prefix Text "LuxRuntime")
(def: #export unit Expression (r.string //.unit))
(def: full-32 (hex "+FFFFFFFF"))
(def: half-32 (hex "+7FFFFFFF"))
(def: post-32 (hex "+100000000"))
(def: (cap-32 input)
(-> Nat Int)
(cond (n/> full-32 input)
(|> input (bit.and full-32) cap-32)
(n/> half-32 input)
(|> post-32 (n/- input) .int (i/* -1))
## else
(.int input)))
(def: high-32 (bit.logical-right-shift +32))
(def: low-32 (|>> (bit.and (hex "+FFFFFFFF"))))
(def: #export (int value)
(-> Int Expression)
(let [value (.nat value)
high (|> value ..high-32 cap-32)
low (|> value ..low-32 cap-32)]
(r.named-list (list [//.int-high-field (r.int high)]
[//.int-low-field (r.int low)]))))
(def: (flag value)
(-> Bit Expression)
(if value
(r.string "")
r.null))
(def: (variant' tag last? value)
(-> Expression Expression Expression Expression)
(r.named-list (list [//.variant-tag-field tag]
[//.variant-flag-field last?]
[//.variant-value-field value])))
(def: #export (variant tag last? value)
(-> Nat Bit Expression Expression)
(variant' (r.int (.int tag))
(flag last?)
value))
(def: #export none
Expression
(variant +0 #0 unit))
(def: #export some
(-> Expression Expression)
(variant +1 #1))
(def: #export left
(-> Expression Expression)
(variant +0 #0))
(def: #export right
(-> Expression Expression)
(variant +1 #1))
(type: Runtime Expression)
(def: declaration
(s.Syntax [Text (List Text)])
(p.either (p.seq s.local-identifier (p/wrap (list)))
(s.form (p.seq s.local-identifier (p.some s.local-identifier)))))
(syntax: (runtime: {[name args] declaration}
definition)
(let [implementation (code.local-identifier (format "@@" name))
runtime (format prefix "__" (lang.normalize-name name))
$runtime (` (r.var (~ (code.text runtime))))
@runtime (` (@@ (~ $runtime)))
argsC+ (list/map code.local-identifier args)
argsLC+ (list/map (|>> lang.normalize-name (format "LRV__") code.text (~) (r.var) (`))
args)
declaration (` ((~ (code.local-identifier name))
(~+ argsC+)))
type (` (-> (~+ (list.repeat (list.size argsC+) (` r.Expression)))
r.Expression))]
(wrap (list (` (def: (~' #export) (~ declaration)
(~ type)
(~ (case argsC+
#.Nil
@runtime
_
(` (r.apply (list (~+ argsC+)) (~ @runtime)))))))
(` (def: (~ implementation)
r.Expression
(~ (case argsC+
#.Nil
(` (r.set! (~ $runtime) (~ definition)))
_
(` (let [(~+ (|> (list.zip2 argsC+ argsLC+)
(list/map (function (_ [left right])
(list left right)))
list/join))]
(r.set! (~ $runtime)
(r.function (list (~+ argsLC+))
(~ definition)))))))))))))
(syntax: #export (with-vars {vars (s.tuple (p.many s.local-identifier))}
body)
(wrap (list (` (let [(~+ (|> vars
(list/map (function (_ var)
(list (code.local-identifier var)
(` (r.var (~ (code.text (format "LRV__" (lang.normalize-name var)))))))))
list/join))]
(~ body))))))
(def: high-shift (r.bit-shl (r.int 32)))
(runtime: f2^32 (|> (r.int 2) (r.** (r.int 32))))
(runtime: f2^63 (|> (r.int 2) (r.** (r.int 63))))
(def: (as-double value)
(-> Expression Expression)
(r.apply (list value) (r.global "as.double")))
(def: (as-integer value)
(-> Expression Expression)
(r.apply (list value) (r.global "as.integer")))
(runtime: (int//unsigned-low input)
(with-vars [low]
($_ r.then
(r.set! low (|> (@@ input) (r.nth (r.string //.int-low-field))))
(r.if (|> (@@ low) (r.>= (r.int 0)))
(@@ low)
(|> (@@ low) (r.+ f2^32))))))
(runtime: (int//to-float input)
(let [high (|> (@@ input)
(r.nth (r.string //.int-high-field))
high-shift)
low (|> (@@ input)
int//unsigned-low)]
(|> high (r.+ low) as-double)))
(runtime: (int//new high low)
(r.named-list (list [//.int-high-field (as-integer (@@ high))]
[//.int-low-field (as-integer (@@ low))])))
(do-template [<name> <value>]
[(runtime: <name>
(..int <value>))]
[int//zero 0]
[int//one 1]
[int//min int/bottom]
[int//max int/top]
)
(def: #export int64-high (r.nth (r.string //.int-high-field)))
(def: #export int64-low (r.nth (r.string //.int-low-field)))
(runtime: (bit//not input)
(int//new (|> (@@ input) int64-high r.bit-not)
(|> (@@ input) int64-low r.bit-not)))
(runtime: (int//+ param subject)
(with-vars [sH sL pH pL
x00 x16 x32 x48]
($_ r.then
(r.set! sH (|> (@@ subject) int64-high))
(r.set! sL (|> (@@ subject) int64-low))
(r.set! pH (|> (@@ param) int64-high))
(r.set! pL (|> (@@ param) int64-low))
(let [bits16 (r.code "0xFFFF")
move-top-16 (r.bit-shl (r.int 16))
top-16 (r.bit-ushr (r.int 16))
bottom-16 (r.bit-and bits16)
split-16 (function (_ source)
[(|> source top-16)
(|> source bottom-16)])
split-int (function (_ high low)
[(split-16 high)
(split-16 low)])
[[s48 s32] [s16 s00]] (split-int (@@ sH) (@@ sL))
[[p48 p32] [p16 p00]] (split-int (@@ pH) (@@ pL))
new-half (function (_ top bottom)
(|> top bottom-16 move-top-16
(r.bit-or (bottom-16 bottom))))]
($_ r.then
(r.set! x00 (|> s00 (r.+ p00)))
(r.set! x16 (|> (@@ x00) top-16 (r.+ s16) (r.+ p16)))
(r.set! x32 (|> (@@ x16) top-16 (r.+ s32) (r.+ p32)))
(r.set! x48 (|> (@@ x32) top-16 (r.+ s48) (r.+ p48)))
(int//new (new-half (@@ x48) (@@ x32))
(new-half (@@ x16) (@@ x00))))))))
(runtime: (int//= reference sample)
(let [n/a? (function (_ value)
(r.apply (list value) (r.global "is.na")))
isTRUE? (function (_ value)
(r.apply (list value) (r.global "isTRUE")))
comparison (: (-> (-> Expression Expression) Expression)
(function (_ field)
(|> (|> (field (@@ sample)) (r.= (field (@@ reference))))
(r.or (|> (n/a? (field (@@ sample)))
(r.and (n/a? (field (@@ reference)))))))))]
(|> (comparison int64-high)
(r.and (comparison int64-low))
isTRUE?)))
(runtime: (int//negate input)
(r.if (|> (@@ input) (int//= int//min))
int//min
(|> (@@ input) bit//not (int//+ int//one))))
(runtime: int//-one
(int//negate int//one))
(runtime: (int//- param subject)
(int//+ (int//negate (@@ param)) (@@ subject)))
(runtime: (int//< reference sample)
(with-vars [r-? s-?]
($_ r.then
(r.set! s-? (|> (@@ sample) int64-high (r.< (r.int 0))))
(r.set! r-? (|> (@@ reference) int64-high (r.< (r.int 0))))
(|> (|> (@@ s-?) (r.and (r.not (@@ r-?))))
(r.or (|> (r.not (@@ s-?)) (r.and (@@ r-?)) r.not))
(r.or (|> (@@ sample)
(int//- (@@ reference))
int64-high
(r.< (r.int 0))))))))
(runtime: (int//from-float input)
(r.cond (list [(r.apply (list (@@ input)) (r.global "is.nan"))
int//zero]
[(|> (@@ input) (r.<= (r.negate f2^63)))
int//min]
[(|> (@@ input) (r.+ (r.float 1.0)) (r.>= f2^63))
int//max]
[(|> (@@ input) (r.< (r.float 0.0)))
(|> (@@ input) r.negate int//from-float int//negate)])
(int//new (|> (@@ input) (r./ f2^32))
(|> (@@ input) (r.%% f2^32)))))
(runtime: (int//* param subject)
(with-vars [sH sL pH pL
x00 x16 x32 x48]
($_ r.then
(r.set! sH (|> (@@ subject) int64-high))
(r.set! pH (|> (@@ param) int64-high))
(let [negative-subject? (|> (@@ sH) (r.< (r.int 0)))
negative-param? (|> (@@ pH) (r.< (r.int 0)))]
(r.cond (list [negative-subject?
(r.if negative-param?
(int//* (int//negate (@@ param))
(int//negate (@@ subject)))
(int//negate (int//* (@@ param)
(int//negate (@@ subject)))))]
[negative-param?
(int//negate (int//* (int//negate (@@ param))
(@@ subject)))])
($_ r.then
(r.set! sL (|> (@@ subject) int64-low))
(r.set! pL (|> (@@ param) int64-low))
(let [bits16 (r.code "0xFFFF")
move-top-16 (r.bit-shl (r.int 16))
top-16 (r.bit-ushr (r.int 16))
bottom-16 (r.bit-and bits16)
split-16 (function (_ source)
[(|> source top-16)
(|> source bottom-16)])
split-int (function (_ high low)
[(split-16 high)
(split-16 low)])
new-half (function (_ top bottom)
(|> top bottom-16 move-top-16
(r.bit-or (bottom-16 bottom))))
x16-top (|> (@@ x16) top-16)
x32-top (|> (@@ x32) top-16)]
(with-vars [s48 s32 s16 s00
p48 p32 p16 p00]
(let [[[_s48 _s32] [_s16 _s00]] (split-int (@@ sH) (@@ sL))
[[_p48 _p32] [_p16 _p00]] (split-int (@@ pH) (@@ pL))
set-subject-chunks! ($_ r.then (r.set! s48 _s48) (r.set! s32 _s32) (r.set! s16 _s16) (r.set! s00 _s00))
set-param-chunks! ($_ r.then (r.set! p48 _p48) (r.set! p32 _p32) (r.set! p16 _p16) (r.set! p00 _p00))]
($_ r.then
set-subject-chunks!
set-param-chunks!
(r.set! x00 (|> (@@ s00) (r.* (@@ p00))))
(r.set! x16 (|> (@@ x00) top-16 (r.+ (|> (@@ s16) (r.* (@@ p00))))))
(r.set! x32 x16-top)
(r.set! x16 (|> (@@ x16) bottom-16 (r.+ (|> (@@ s00) (r.* (@@ p16))))))
(r.set! x32 (|> (@@ x32) (r.+ x16-top) (r.+ (|> (@@ s32) (r.* (@@ p00))))))
(r.set! x48 x32-top)
(r.set! x32 (|> (@@ x32) bottom-16 (r.+ (|> (@@ s16) (r.* (@@ p16))))))
(r.set! x48 (|> (@@ x48) (r.+ x32-top)))
(r.set! x32 (|> (@@ x32) bottom-16 (r.+ (|> (@@ s00) (r.* (@@ p32))))))
(r.set! x48 (|> (@@ x48) (r.+ x32-top)
(r.+ (|> (@@ s48) (r.* (@@ p00))))
(r.+ (|> (@@ s32) (r.* (@@ p16))))
(r.+ (|> (@@ s16) (r.* (@@ p32))))
(r.+ (|> (@@ s00) (r.* (@@ p48))))))
(int//new (new-half (@@ x48) (@@ x32))
(new-half (@@ x16) (@@ x00))))))
)))))))
(def: (limit-shift! shift)
(-> SVar Expression)
(r.set! shift (|> (@@ shift) (r.bit-and (r.int 63)))))
(def: (no-shift-clause shift input)
(-> SVar SVar [Expression Expression])
[(|> (@@ shift) (r.= (r.int 0)))
(@@ input)])
(runtime: (bit//left-shift shift input)
($_ r.then
(limit-shift! shift)
(r.cond (list (no-shift-clause shift input)
[(|> (@@ shift) (r.< (r.int 32)))
(let [mid (|> (int64-low (@@ input)) (r.bit-ushr (|> (r.int 32) (r.- (@@ shift)))))
high (|> (int64-high (@@ input))
(r.bit-shl (@@ shift))
(r.bit-or mid))
low (|> (int64-low (@@ input))
(r.bit-shl (@@ shift)))]
(int//new high low))])
(let [high (|> (int64-high (@@ input))
(r.bit-shl (|> (@@ shift) (r.- (r.int 32)))))]
(int//new high (r.int 0))))))
(runtime: (bit//arithmetic-right-shift-32 shift input)
(let [top-bit (|> (@@ input) (r.bit-and (r.int (hex "80000000"))))]
(|> (@@ input)
(r.bit-ushr (@@ shift))
(r.bit-or top-bit))))
(runtime: (bit//arithmetic-right-shift shift input)
($_ r.then
(limit-shift! shift)
(r.cond (list (no-shift-clause shift input)
[(|> (@@ shift) (r.< (r.int 32)))
(let [mid (|> (int64-high (@@ input)) (r.bit-shl (|> (r.int 32) (r.- (@@ shift)))))
high (|> (int64-high (@@ input))
(bit//arithmetic-right-shift-32 (@@ shift)))
low (|> (int64-low (@@ input))
(r.bit-ushr (@@ shift))
(r.bit-or mid))]
(int//new high low))])
(let [low (|> (int64-high (@@ input))
(bit//arithmetic-right-shift-32 (|> (@@ shift) (r.- (r.int 32)))))
high (r.if (|> (int64-high (@@ input)) (r.>= (r.int 0)))
(r.int 0)
(r.int -1))]
(int//new high low)))))
(runtime: (int/// param subject)
(let [negative? (|>> (int//< int//zero))
valid-division-check [(|> (@@ param) (int//= int//zero))
(r.stop (r.string "Cannot divide by zero!"))]
short-circuit-check [(|> (@@ subject) (int//= int//zero))
int//zero]]
(r.cond (list valid-division-check
short-circuit-check
[(|> (@@ subject) (int//= int//min))
(r.cond (list [(|> (|> (@@ param) (int//= int//one))
(r.or (|> (@@ param) (int//= int//-one))))
int//min]
[(|> (@@ param) (int//= int//min))
int//one])
(with-vars [approximation]
($_ r.then
(r.set! approximation
(|> (@@ subject)
(bit//arithmetic-right-shift (r.int 1))
(int/// (@@ param))
(bit//left-shift (r.int 1))))
(r.if (|> (@@ approximation) (int//= int//zero))
(r.if (negative? (@@ param))
int//one
int//-one)
(let [remainder (int//- (int//* (@@ param) (@@ approximation))
(@@ subject))]
(|> remainder
(int/// (@@ param))
(int//+ (@@ approximation))))))))]
[(|> (@@ param) (int//= int//min))
int//zero]
[(negative? (@@ subject))
(r.if (negative? (@@ param))
(|> (int//negate (@@ subject))
(int/// (int//negate (@@ param))))
(|> (int//negate (@@ subject))
(int/// (@@ param))
int//negate))]
[(negative? (@@ param))
(|> (@@ param)
int//negate
(int/// (@@ subject))
int//negate)])
(with-vars [result remainder approximate approximate-result log2 approximate-remainder]
($_ r.then
(r.set! result int//zero)
(r.set! remainder (@@ subject))
(r.while (|> (|> (@@ remainder) (int//< (@@ param)))
(r.or (|> (@@ remainder) (int//= (@@ param)))))
(let [calc-rough-estimate (r.apply (list (|> (int//to-float (@@ remainder)) (r./ (int//to-float (@@ param)))))
(r.global "floor"))
calc-approximate-result (int//from-float (@@ approximate))
calc-approximate-remainder (|> (@@ approximate-result) (int//* (@@ param)))
delta (r.if (|> (r.float 48.0) (r.<= (@@ log2)))
(r.float 1.0)
(r.** (|> (@@ log2) (r.- (r.float 48.0)))
(r.float 2.0)))]
($_ r.then
(r.set! approximate (r.apply (list (r.float 1.0) calc-rough-estimate)
(r.global "max")))
(r.set! log2 (let [log (function (_ input)
(r.apply (list input) (r.global "log")))]
(r.apply (list (|> (log (r.int 2))
(r./ (log (@@ approximate)))))
(r.global "ceil"))))
(r.set! approximate-result calc-approximate-result)
(r.set! approximate-remainder calc-approximate-remainder)
(r.while (|> (negative? (@@ approximate-remainder))
(r.or (|> (@@ approximate-remainder) (int//< (@@ remainder)))))
($_ r.then
(r.set! approximate (|> delta (r.- (@@ approximate))))
(r.set! approximate-result calc-approximate-result)
(r.set! approximate-remainder calc-approximate-remainder)))
(r.set! result (|> (r.if (|> (@@ approximate-result) (int//= int//zero))
int//one
(@@ approximate-result))
(int//+ (@@ result))))
(r.set! remainder (|> (@@ remainder) (int//- (@@ approximate-remainder)))))))
(@@ result)))
)))
(runtime: (int//% param subject)
(let [flat (|> (@@ subject) (int/// (@@ param)) (int//* (@@ param)))]
(|> (@@ subject) (int//- flat))))
(def: runtime//int
Runtime
($_ r.then
@@int//zero
@@int//one
@@int//min
@@int//max
@@int//=
@@int//<
@@int//+
@@int//-
@@int//negate
@@int//-one
@@int//unsigned-low
@@int//to-float
@@int//*
@@int///
@@int//%))
(runtime: (lux//try op)
(with-vars [error value]
(r.try ($_ r.then
(r.set! value (r.apply (list ..unit) (@@ op)))
(..right (@@ value)))
#.None
(#.Some (r.function (list error)
(..left (r.nth (r.string "message")
(@@ error)))))
#.None)))
(runtime: (lux//program-args program-args)
(with-vars [inputs value]
($_ r.then
(r.set! inputs ..none)
(<| (r.for-in value (@@ program-args))
(r.set! inputs (..some (r.list (list (@@ value) (@@ inputs))))))
(@@ inputs))))
(def: runtime//lux
Runtime
($_ r.then
@@lux//try
@@lux//program-args))
(def: current-time-float
Expression
(let [raw-time (r.apply (list) (r.global "Sys.time"))]
(r.apply (list raw-time) (r.global "as.numeric"))))
(runtime: (io//current-time! _)
(|> current-time-float
(r.* (r.float 1_000.0))
int//from-float))
(def: runtime//io
Runtime
($_ r.then
@@io//current-time!))
(def: minimum-index-length
(-> SVar Expression)
(|>> @@ (r.+ (r.int 1))))
(def: (product-element product index)
(-> Expression Expression Expression)
(|> product (r.nth (|> index (r.+ (r.int 1))))))
(def: (product-tail product)
(-> SVar Expression)
(|> (@@ product) (r.nth (r.length (@@ product)))))
(def: (updated-index min-length product)
(-> Expression Expression Expression)
(|> min-length (r.- (r.length product))))
(runtime: (product//left product index)
(let [$index_min_length (r.var "index_min_length")]
($_ r.then
(r.set! $index_min_length (minimum-index-length index))
(r.if (|> (r.length (@@ product)) (r.> (@@ $index_min_length)))
## No need for recursion
(product-element (@@ product) (@@ index))
## Needs recursion
(product//left (product-tail product)
(updated-index (@@ $index_min_length) (@@ product)))))))
(runtime: (product//right product index)
(let [$index_min_length (r.var "index_min_length")]
($_ r.then
(r.set! $index_min_length (minimum-index-length index))
(r.cond (list [## Last element.
(|> (r.length (@@ product)) (r.= (@@ $index_min_length)))
(product-element (@@ product) (@@ index))]
[## Needs recursion
(|> (r.length (@@ product)) (r.< (@@ $index_min_length)))
(product//right (product-tail product)
(updated-index (@@ $index_min_length) (@@ product)))])
## Must slice
(|> (@@ product) (r.slice-from (@@ index)))))))
(runtime: (sum//get sum wanted_tag wants_last)
(let [no-match r.null
sum-tag (|> (@@ sum) (r.nth (r.string //.variant-tag-field)))
sum-flag (|> (@@ sum) (r.nth (r.string //.variant-flag-field)))
sum-value (|> (@@ sum) (r.nth (r.string //.variant-value-field)))
is-last? (|> sum-flag (r.= (r.string "")))
test-recursion (r.if is-last?
## Must recurse.
(sum//get sum-value
(|> (@@ wanted_tag) (r.- sum-tag))
(@@ wants_last))
no-match)]
(r.cond (list [(r.= sum-tag (@@ wanted_tag))
(r.if (r.= (@@ wants_last) sum-flag)
sum-value
test-recursion)]
[(|> (@@ wanted_tag) (r.> sum-tag))
test-recursion]
[(|> (|> (@@ wants_last) (r.= (r.string "")))
(r.and (|> (@@ wanted_tag) (r.< sum-tag))))
(variant' (|> sum-tag (r.- (@@ wanted_tag))) sum-flag sum-value)])
no-match)))
(def: runtime//adt
Runtime
($_ r.then
@@product//left
@@product//right
@@sum//get
))
(do-template [<name> <op>]
[(runtime: (<name> mask input)
(int//new (<op> (int64-high (@@ mask))
(int64-high (@@ input)))
(<op> (int64-low (@@ mask))
(int64-low (@@ input)))))]
[bit//and r.bit-and]
[bit//or r.bit-or]
[bit//xor r.bit-xor]
)
(runtime: (bit//logical-right-shift shift input)
($_ r.then
(limit-shift! shift)
(r.cond (list (no-shift-clause shift input)
[(|> (@@ shift) (r.< (r.int 32)))
(with-vars [$mid]
(let [mid (|> (int64-high (@@ input)) (r.bit-shl (|> (r.int 32) (r.- (@@ shift)))))
high (|> (int64-high (@@ input)) (r.bit-ushr (@@ shift)))
low (|> (int64-low (@@ input))
(r.bit-ushr (@@ shift))
(r.bit-or (r.if (r.apply (list (@@ $mid)) (r.global "is.na"))
(r.int 0)
(@@ $mid))))]
($_ r.then
(r.set! $mid mid)
(int//new high low))))]
[(|> (@@ shift) (r.= (r.int 32)))
(let [high (int64-high (@@ input))]
(int//new (r.int 0) high))])
(let [low (|> (int64-high (@@ input)) (r.bit-ushr (|> (@@ shift) (r.- (r.int 32)))))]
(int//new (r.int 0) low)))))
(def: runtime//bit
Runtime
($_ r.then
@@bit//and
@@bit//or
@@bit//xor
@@bit//not
@@bit//left-shift
@@bit//arithmetic-right-shift-32
@@bit//arithmetic-right-shift
@@bit//logical-right-shift
))
(runtime: (frac//decode input)
(with-vars [output]
($_ r.then
(r.set! output (r.apply (list (@@ input)) (r.global "as.numeric")))
(r.if (|> (@@ output) (r.= r.n/a))
..none
(..some (@@ output))))))
(def: runtime//frac
Runtime
($_ r.then
@@frac//decode))
(def: inc (-> Expression Expression) (|>> (r.+ (r.int 1))))
(do-template [<name> <top-cmp>]
[(def: (<name> top value)
(-> Expression Expression Expression)
(|> (|> value (r.>= (r.int 0)))
(r.and (|> value (<top-cmp> top)))))]
[within? r.<]
[up-to? r.<=]
)
(def: (text-clip start end text)
(-> Expression Expression Expression Expression)
(r.apply (list text start end)
(r.global "substr")))
(def: (text-length text)
(-> Expression Expression)
(r.apply (list text) (r.global "nchar")))
(runtime: (text//index subject param start)
(with-vars [idx startF subjectL]
($_ r.then
(r.set! startF (int//to-float (@@ start)))
(r.set! subjectL (text-length (@@ subject)))
(r.if (|> (@@ startF) (within? (@@ subjectL)))
($_ r.then
(r.set! idx (|> (r.apply-kw (list (@@ param) (r.if (|> (@@ startF) (r.= (r.int 0)))
(@@ subject)
(text-clip (inc (@@ startF))
(inc (@@ subjectL))
(@@ subject))))
(list ["fixed" (r.bool #1)])
(r.global "regexpr"))
(r.nth (r.int 1))))
(r.if (|> (@@ idx) (r.= (r.int -1)))
..none
(..some (int//from-float (|> (@@ idx) (r.+ (@@ startF)))))))
..none))))
(runtime: (text//clip text from to)
(with-vars [length]
($_ r.then
(r.set! length (r.length (@@ text)))
(r.if ($_ r.and
(|> (@@ to) (within? (@@ length)))
(|> (@@ from) (up-to? (@@ to))))
(..some (text-clip (inc (@@ from)) (inc (@@ to)) (@@ text)))
..none))))
(def: (char-at idx text)
(-> Expression Expression Expression)
(r.apply (list (text-clip idx idx text))
(r.global "utf8ToInt")))
(runtime: (text//char text idx)
(r.if (|> (@@ idx) (within? (r.length (@@ text))))
($_ r.then
(r.set! idx (inc (@@ idx)))
(..some (int//from-float (char-at (@@ idx) (@@ text)))))
..none))
(def: runtime//text
Runtime
($_ r.then
@@text//index
@@text//clip
@@text//char))
(def: (check-index-out-of-bounds array idx body)
(-> Expression Expression Expression Expression)
(r.if (|> idx (r.<= (r.length array)))
body
(r.stop (r.string "Array index out of bounds!"))))
(runtime: (array//new size)
(with-vars [output]
($_ r.then
(r.set! output (r.list (list)))
(r.set-nth! (|> (@@ size) (r.+ (r.int 1)))
r.null
output)
(@@ output))))
(runtime: (array//get array idx)
(with-vars [temp]
(<| (check-index-out-of-bounds (@@ array) (@@ idx))
($_ r.then
(r.set! temp (|> (@@ array) (r.nth (@@ idx))))
(r.if (|> (@@ temp) (r.= r.null))
..none
(..some (@@ temp)))))))
(runtime: (array//put array idx value)
(<| (check-index-out-of-bounds (@@ array) (@@ idx))
($_ r.then
(r.set-nth! (@@ idx) (@@ value) array)
(@@ array))))
(def: runtime//array
Runtime
($_ r.then
@@array//new
@@array//get
@@array//put))
(runtime: (box//write value box)
($_ r.then
(r.set-nth! (r.int 1) (@@ value) box)
..unit))
(def: runtime//box
Runtime
($_ r.then
@@box//write))
(def: process//incoming
SVar
(r.var (lang.normalize-name "process//incoming")))
(def: (list-append! value rlist)
(-> Expression SVar Expression)
(r.set-nth! (|> (@@ rlist) r.length (r.+ (r.int 1)))
value
rlist))
(runtime: (process//loop _)
(let [empty (r.list (list))]
(with-vars [queue process]
(let [migrate-incoming! ($_ r.then
(r.set! queue empty)
(<| (r.for-in process (@@ process//incoming))
(list-append! (@@ process) queue))
(r.set! process//incoming empty))
consume-queue! (<| (r.for-in process (@@ queue))
(r.apply (list ..unit) (@@ process)))]
($_ r.then
migrate-incoming!
consume-queue!
(r.when (|> (r.length (@@ queue)) (r.> (r.int 0)))
(process//loop ..unit)))))))
(runtime: (process//schedule milli-seconds procedure)
(r.if (r.= (r.int 0) (@@ milli-seconds))
($_ r.then
(list-append! (@@ procedure) process//incoming)
..unit)
(let [to-seconds (|>> (r./ (r.float 1_000.0)))
to-millis (|>> (r.* (r.float 1_000.0)))]
(with-vars [start now seconds _arg elapsed-time]
($_ r.then
(r.set! start current-time-float)
(r.set! seconds (to-seconds (int//to-float (@@ milli-seconds))))
(list-append! (r.function (list _arg)
($_ r.then
(r.set! now current-time-float)
(r.set! elapsed-time (|> (@@ now) (r.- (@@ start))))
(r.if (|> (@@ elapsed-time) (r.>= (@@ seconds)))
(@@ procedure)
(process//schedule (to-millis (@@ elapsed-time))
(@@ procedure)))))
process//incoming)
..unit)))))
(def: runtime//process
Runtime
($_ r.then
(r.set! process//incoming (r.list (list)))
@@process//loop
@@process//schedule
))
(def: runtime
Runtime
($_ r.then
runtime//lux
@@f2^32
@@f2^63
@@int//new
@@int//from-float
runtime//bit
runtime//int
runtime//adt
runtime//frac
runtime//text
runtime//array
runtime//box
runtime//io
runtime//process
))
(def: #export artifact Text (format prefix ".r"))
(def: #export translate
(Meta (Process Any))
(do macro.Monad<Meta>
[_ //.init-module-buffer
_ (//.save runtime)]
(//.save-module! artifact)))
|