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(.module:
[library
[lux (#- nat int rev)
["." meta]
[abstract
[monad (#+ do)]]
[control
["<>" parser
["<.>" code]]]
[macro
[syntax (#+ syntax:)]
["." code]]
[math
[number (#+ hex)]
["." random (#+ Random)]]]])
(template [<name> <type> <format>]
[(syntax: .public (<name> [expression <code>.any])
(\ meta.monad each
(|>> (:as <type>) <format> list)
(meta.eval <type> expression)))]
[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))))))
(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_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))))))
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