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... This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
... If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
(.require
[library
[lux (.except static)
[abstract
[monad (.only do)]]
[control
["?" parser]
["[0]" try]
["[0]" exception (.only Exception)]]
[data
["[0]" text (.only)
["%" \\format]]]
[math
[number (.only hex)]
["[0]" random (.only Random)]]
["[0]" meta (.only)
["[0]" code (.only)
["?[1]" \\parser (.only Parser)]]
[macro
[syntax (.only syntax)]]]]])
(exception.def .public (failure test)
(Exception Code)
(exception.report
(list ["Test" (%.code test)])))
(type .public Test
(Random Bit))
(def pcg_32_magic_inc
Nat
(hex "FEDCBA9876543210"))
(def ?static
(Parser [(Maybe Nat)
Code])
(?.either (do ?.monad
[seed ?code.nat
term ?code.any]
(in [{.#Some seed} term]))
(do ?.monad
[term ?code.any]
(in [{.#None} term]))))
(def .public static
(syntax (_ [[seed term] ?static])
(do [! meta.monad]
[test (meta.eval Test term)
seed (when seed
{.#Some seed}
(in seed)
_
meta.seed)
.let [[_ success?] (random.result (random.pcg_32 [..pcg_32_magic_inc seed])
(as Test test))]]
(if success?
(in (list))
(meta.failure (exception.error ..failure [term]))))))
(def .public dynamic
(syntax (_ [test ?code.any])
(do [! meta.monad]
[error_message (meta.try (meta.failure (exception.error ..failure [test])))]
(in (list (` (is Any
(if (is Bit (, test))
[]
(panic! (, (code.text (when error_message
{try.#Failure error}
error
{try.#Success _}
""))))))))))))
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