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|
(.using
[library
[lux (.except nat int rev if cond)
["[0]" meta ("[1]#[0]" functor)]
[abstract
[monad (.only do)]]
[control
["<>" parser (.only)
["<[0]>" code]]]
[data
[collection
["[0]" list ("[1]#[0]" functor mix)]]]
[macro
[syntax (.only syntax:)]
["[0]" code]]
[math
[number (.only hex)]
["[0]" random (.only Random)]]]])
(template [<name> <type> <format>]
[(syntax: .public (<name> [expression <code>.any])
(# meta.monad each
(|>> (as <type>) <format> list)
(meta.eval <type> expression)))]
[bit .Bit code.bit]
[nat .Nat code.nat]
[int .Int code.int]
[rev .Rev code.rev]
[frac .Frac code.frac]
[text .Text code.text]
)
(def: pcg_32_magic_inc
Nat
(hex "FEDCBA9876543210"))
(with_expansions [<type> (Ex (_ a)
[(-> a Code)
a])]
(syntax: .public (literal [format <code>.any
expression <code>.any])
(do meta.monad
[pair (meta.eval (.type <type>)
(` [(~ format) (~ expression)]))
.let [[format expression] (as <type> pair)]]
(in (list (format expression))))))
(with_expansions [<type> (Ex (_ a)
[(-> a Code)
(List a)])]
(syntax: .public (literals [format <code>.any
expression <code>.any])
(do meta.monad
[pair (meta.eval (.type <type>)
(` [(~ format) (~ expression)]))
.let [[format expression] (as <type> pair)]]
(in (list#each format expression)))))
(syntax: .public (seed [])
(meta#each (|>> code.nat list) meta.seed))
(template [<name> <random> <format>]
[(syntax: .public (<name> [])
(do meta.monad
[seed meta.seed
.let [[_ result] (random.result (random.pcg_32 [..pcg_32_magic_inc seed])
<random>)]]
(in (list (<format> result)))))]
[random_bit random.bit code.bit]
[random_nat random.nat code.nat]
[random_int random.int code.int]
[random_rev random.rev code.rev]
[random_frac random.frac code.frac]
)
(with_expansions [<type> (Ex (_ a)
[(-> a Code)
(Random a)])]
(syntax: .public (random [format <code>.any
random <code>.any])
(do meta.monad
[pair (meta.eval (type <type>)
(` [(~ format) (~ random)]))
.let [[format random] (as <type> pair)]
seed meta.seed
.let [[_ result] (random.result (random.pcg_32 [..pcg_32_magic_inc seed])
random)]]
(in (list (format result))))))
(with_expansions [<type> (Ex (_ a)
[(-> a Code)
(Random (List a))])]
(syntax: .public (randoms [format <code>.any
random <code>.any])
(do meta.monad
[pair (meta.eval (type <type>)
(` [(~ format) (~ random)]))
.let [[format random] (as <type> pair)]
seed meta.seed
.let [[_ result] (random.result (random.pcg_32 [..pcg_32_magic_inc seed])
random)]]
(in (list#each format result)))))
(syntax: .public (if [test <code>.any
then <code>.any
else <code>.any])
(do meta.monad
[test (meta.eval .Bit test)]
(in (list (.if (as .Bit test)
then
else)))))
(syntax: .public (cond [test,then/* (<>.some (<>.and <code>.any <code>.any))
else <code>.any])
(in (list (list#mix (function (_ [test then] else)
(` (..if (~ test)
(~ then)
(~ else))))
else
(list.reversed test,then/*)))))
(syntax: .public (when [test <code>.any
then <code>.any])
(do meta.monad
[test (meta.eval .Bit test)]
(in (.if (as .Bit test)
(list then)
(list)))))
|
