Last-Modified: 2023-04-01T15:19:01+01:00


>>>> Unanswered questions <<<<<

Q: What are “stat storms” and what's their connection with “thunking”?

Q: When should a record field be thunked?

Q: What's (innate) in define-record-type*?

Q: package/inherit vs inherit?

Q: (guix build …) vs (guix build-system …) ?

=================================



Guile
======================


Q: What is the difference between '#:autoload' and '#:use-module + #:select'
without renaming or prefixing:

""""""""""""""""""
(define-module (foo)
  #:autoload (my module) (my-procedure))

;; vs.

(define-module (foo)
  #:use-module ((my module) #:select (my-procedure)))
""""""""""""""""""

A:
<jpoiret> autoload means that the module is not loaded on (define-module ...), but rather when the first autoloaded symbol is used
<jpoiret> use-module would just outright load it
<jpoiret> this lets you avoid import cycles if all the autoloaded variables are used inside functions, since they'll be loaded later when the function runs for the first time



Guix
=====================


Q: Which 'raise' is used throughout guix, since guile 'raise' raises process signals?
A: <jpoiret> since raise is a built-in, when you use-module srfi-34 it just overwrites the definition.

Q: What are the “XXX: …” comments within the codebase?
A: XXX is for ugly hacks that should be eventually replaced with something more elegant, when someone
finds a way to do so.  (apteryx)

Q: What is “define-compile-time-procedure” and when is it used for?
A: (see url)  \\\\ TODO: rewrite this
URLs: <https://logs.guix.gnu.org/guix/2023-03-20.log#131047>, <https://logs.guix.gnu.org/guix/2023-03-20.log#132827>


ETC
==========


<vivien>How do I apply a patch for guix? It's for https://issues.guix.gnu.org/60108 I downloaded the original message by clicking the download button next to it, https://issues.guix.gnu.org/issue/60108/raw/0 but then when I do git am <file> I just get: Patch format detection failed.
<omlet[m]>Only i not speak good english without translate
<vivien>I tried to run git apply but it does not create the commit, so the commit will have wrong author and date information I guess
<vivien>Oh I needed --patch-format=mbox