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|
(.module:
[library
[lux "*"
[abstract
[functor {"+" [Functor]}]
[apply {"+" [Apply]}]
[monad {"+" [Monad do]}]]
[control
[parser
["<[0]>" code]]]
[type
abstract]
[macro {"+" [with_identifiers]}
[syntax {"+" [syntax:]}]
["[0]" template]]]])
(abstract: .public (IO a)
(-> Any a)
[(def: label
(All (_ _ a) (-> (-> Any a) (IO a)))
(|>> :abstraction))
(template: (!io computation)
[(:abstraction (template.with_locals [g!func g!arg]
(function (g!func g!arg)
computation)))])
(template: (run!' io)
... creatio ex nihilo
[((:representation io) [])])
(syntax: .public (io [computation <code>.any])
(with_identifiers [g!func g!arg]
(in (list (` ((~! ..label) (function ((~ g!func) (~ g!arg))
(~ computation))))))))
(def: .public run!
(All (_ _ a) (-> (IO a) a))
(|>> ..run!'))
(implementation: .public functor
(Functor IO)
(def: (each f)
(|>> ..run!' f !io)))
(implementation: .public apply
(Apply IO)
(def: &functor ..functor)
(def: (on fa ff)
(!io ((..run!' ff) (..run!' fa)))))
(implementation: .public monad
(Monad IO)
(def: &functor ..functor)
(def: in
(|>> !io))
(def: conjoint
(|>> ..run!' ..run!' !io)))]
)
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