From: Magali Lemes <magalilemes00@gmail.com>
To: "Gábor Boskovits" <boskovits@gmail.com>,
zimoun <zimon.toutoune@gmail.com>,
guix-devel@gnu.org
Subject: [Outreachy] Use of impure functional programming and use of vlists
Date: Sat, 27 Feb 2021 00:10:05 -0300 [thread overview]
Message-ID: <b20f3d5b-f4bb-a204-f430-7bcdfb5c5f1c@gmail.com> (raw)
Hello, Guix.
As my Outreachy internship approaches an end, I'd like to know which of
the following options is better for walking and displaying the Git
commit history:
1) having a list and then using for-each it to display the commit
information;
2) display the list while building it.
When it comes to option number 2, the main advantage is that it's faster
to perform operations such as 'guix git log --oneline | head -n5'. The
downside is that it's not a pure functional programming approach.
Another question is, could vlists be used? Since it would be fast to
have the commits in a hash table implemented with vlists, we could use
'vlist-for-each' to display the commits. I haven't seen vlist-for-each
being used anywhere in Guix, so I wondered if there's a special reason
for it not being used, or if it hasn't really been necessary at all thus
far.
Regards,
Magali
next reply other threads:[~2021-02-27 3:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-27 3:10 Magali Lemes [this message]
2021-02-27 12:36 ` [Outreachy] Use of impure functional programming and use of vlists Arun Isaac
2021-03-03 14:00 ` Ludovic Courtès
2021-03-05 0:06 ` zimoun
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