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|
(.module:
[lux #*
["_" test (#+ Test)]
[abstract
[monad (#+ do)]
[equivalence (#+ Equivalence)]
[functor
{[0 #spec]
[/
["$." contravariant]]}]]
[control
["." try]]
[data
["." text ("#\." equivalence)]
["." bit]
["." name]
[format
["." xml]
["." json]]
[collection
["." list ("#\." functor)]]]
["." time
["." instant]
["." duration]
["." date]]
[math
["." random (#+ Random) ("#\." monad)]
["." modulus]
["." modular]
[number
["." nat]
["." int]
["." rev]
["." frac]
["." ratio]]]
[macro
["." code]]
[meta
["." location]]
["." type]]
["$." /// #_
[format
["#." xml]
["#." json]]
["#." name]
[//
["#." type]
[macro
["#." code]]]]
{1
["." /]})
(implementation: (equivalence example)
(All [a] (-> a (Equivalence (/.Format a))))
(def: (= reference subject)
(text\= (reference example) (subject example))))
(def: random_contravariant
(Random (Ex [a] [(/.Format a)
(Random a)]))
($_ random.either
(random\wrap [/.bit random.bit])
(random\wrap [/.nat random.nat])
(random\wrap [/.int random.int])
(random\wrap [/.rev random.rev])
(random\wrap [/.frac random.frac])
))
(def: #export test
Test
(<| (_.covering /._)
(_.for [/.Format])
(`` ($_ _.and
(_.for [/.functor]
(do random.monad
[[format random] ..random_contravariant
example random]
($contravariant.spec (..equivalence example)
format
/.functor)))
(do random.monad
[left (random.unicode 5)
mid (random.unicode 5)
right (random.unicode 5)]
(_.cover [/.format]
(text\= (/.format left mid right)
($_ "lux text concat" left mid right))))
(~~ (template [<format> <codec> <random>]
[(do random.monad
[sample <random>]
(_.cover [<format>]
(text\= (\ <codec> encode sample)
(<format> sample))))]
[/.bit bit.codec random.bit]
[/.nat nat.decimal random.nat]
[/.int int.decimal random.int]
[/.rev rev.decimal random.rev]
[/.frac frac.decimal random.frac]
[/.ratio ratio.codec random.ratio]
[/.name name.codec ($///name.random 5 5)]
[/.xml xml.codec $///xml.random]
[/.json json.codec $///json.random]
[/.instant instant.codec random.instant]
[/.duration duration.codec random.duration]
[/.date date.codec random.date]
[/.time time.codec random.time]
[/.nat/2 nat.binary random.nat]
[/.nat/8 nat.octal random.nat]
[/.nat/10 nat.decimal random.nat]
[/.nat/16 nat.hex random.nat]
[/.int/2 int.binary random.int]
[/.int/8 int.octal random.int]
[/.int/10 int.decimal random.int]
[/.int/16 int.hex random.int]
[/.rev/2 rev.binary random.rev]
[/.rev/8 rev.octal random.rev]
[/.rev/10 rev.decimal random.rev]
[/.rev/16 rev.hex random.rev]
[/.frac/2 frac.binary random.frac]
[/.frac/8 frac.octal random.frac]
[/.frac/10 frac.decimal random.frac]
[/.frac/16 frac.hex random.frac]
))
(~~ (template [<format> <alias> <random>]
[(do random.monad
[sample <random>]
(_.cover [<format>]
(text\= (<alias> sample)
(<format> sample))))]
[/.text text.format (random.unicode 5)]
[/.code code.format $///code.random]
[/.type type.format $///type.random]
[/.location location.format
($_ random.and
(random.unicode 5)
random.nat
random.nat)]
))
(do random.monad
[members (random.list 5 random.nat)]
(_.cover [/.list]
(text\= (/.list /.nat members)
(|> members
(list\map /.nat)
(text.join_with " ")
list
(/.list (|>>))))))
(do {! random.monad}
[modulus (random.one (|>> modulus.modulus
try.to_maybe)
random.int)
sample (\ ! map (modular.modular modulus)
random.int)]
(_.cover [/.mod]
(text\= (\ (modular.codec modulus) encode sample)
(/.mod sample))))
))))
|
