Constructors created by define-configuration evaluate the fields twice

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Tomas Volf

Owner: unassigned

Submitted by: Tomas Volf

Severity: normal

Tomas Volf wrote 3 months ago

Recipients:(address . bug-guix@gnu.org)

Message-ID:87y10o7tlm.fsf@wolfsden.cz

Hello,

I discovered that every field in configuration created by

define-configuration is evaluated twice:

Toggle snippet (10 lines)

scheme@(guix-user)> ,use (gnu services configuration)

scheme@(guix-user)> (define serialize-string #f)

scheme@(guix-user)> (define-configuration test (s string ""))

scheme@(guix-user)> (test (s (pk "x")))

;;; ("x")

;;; ("x")

That probably is not intentional.

Have a nice day,

Tomas volf

--

There are only two hard things in Computer Science:

cache invalidation, naming things and off-by-one errors.

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