(.require [library [lux (.except if loop) ["$" documentation] [data [text (.only \n) ["%" \\format (.only format)]]]]] [\\library ["[0]" /]]) (.def .public documentation (.List $.Module) ($.module /._ "" [($.default /.monoid) ($.default /.functor) ($.default /.apply) ($.default /.monad) ($.default /.equivalence) ($.default /.hash) ($.default /.with) ($.default /.list) ($.documentation /.lifted "Wraps a monadic value with Maybe machinery." [(lifted monad)]) ($.documentation /.else (format "Allows you to provide a default value that will be used" \n "if a (Maybe x) value turns out to be .#None." \n "Note: the expression for the default value will not be computed if the base computation succeeds.") [(else +20 {.#Some +10}) "=>" +10] [(else +20 {.#None}) "=>" +20]) ($.documentation /.trusted (format "Assumes that a Maybe value is a .#Some and yields its value." \n "Raises/throws a runtime error otherwise." \n "WARNING: Use with caution.") [(trusted trusted_computation)]) ($.documentation /.when "Can be used as a guard in (co)monadic be/do expressions." [(do monad [value (do_something 1 2 3) .when (passes_test? value)] (do_something_else 4 5 6))])] []))