[email protected] writes:
> For example, given that "minimal-container" is an operating system, I
> can do the following:
>
> (set-fields minimal-container ((operating-system-host-name) "toto"))
>
> But not:
>
> (set-fields minimal-container ((operating-system-label) "toto"))
In Guile we usually try to avoid mutation like that. The records API
allows you to use inheritance instead:
(operating-system
(inherit minimal-container)
(label "toto"))
Thunking just means that the field is a procedure that returns a value
when called with no arguments. The records in (guix records) are not
plain SRFI9 records, so I would not expect set-fields to work at all.
--
Ricardo
