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From: Junio C Hamano <gitster@pobox.com>
To: Eric Sunshine <sunshine@sunshineco.com>
Cc: "Martin Ågren" <martin.agren@gmail.com>,
	"Git List" <git@vger.kernel.org>
Subject: Re: [PATCH 8/8] worktree: simplify search for unique worktree
Date: Thu, 10 Sep 2020 14:08:08 -0700
Message-ID: <xmqq363ppcg7.fsf@gitster.c.googlers.com> (raw)
In-Reply-To: <CAPig+cQ871p8+oQdBBY=ebDdjDWfa5NvEMroitEmk4Db8DfLvA@mail.gmail.com> (Eric Sunshine's message of "Thu, 10 Sep 2020 16:01:57 -0400")

Eric Sunshine <sunshine@sunshineco.com> writes:

>> Thanks for commenting. I found the original trickier than it had to be.
>> It spreads out the logic in several places and is careful to short-cut
>> the loop. My first thought was "why doesn't this just use the standard
>> form?". But I'm open to the idea that it might be a fairly personal
>> standard form... If there's any risk that someone else comes along and
>> simplifies this to use a `nr_found` variable, then maybe file this under
>> code churning?
>
> Maybe. Dunno. Even with the suggested function comment, I still find
> that the revised code has a higher cognitive load because the reader
> has to remember or figure out mentally what `found` contains by the
> `return found;` at the end of the function.

Judging from the phrase "standard form", I have a feeling that
Martin thinks that the updated code is more intuitive (i.e. "we see
another one while keeping the one we already found, so we know there
is no unique answer").  I do not claim that would be the standard way
and using a counter clamped to 2 is substandard, but I find the code
more readable with the patch than the original.

Even though it helps somewhat that the counter is named "nr_found"
and not "nr_match", I found it a bit awkward that the counter in the
original pretends to count all the answers, yet does not really
count all of them and stops at 2.

I agree with Martin that this would probably be subjective.

Thanks.



  reply	other threads:[~2020-09-10 21:10 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-10 19:03 [PATCH 0/8] various wt-status/worktree cleanups Martin Ågren
2020-09-10 19:03 ` [PATCH 1/8] wt-status: replace sha1 mentions with oid Martin Ågren
2020-09-10 19:03 ` [PATCH 2/8] wt-status: print to s->fp, not stdout Martin Ågren
2020-09-10 19:03 ` [PATCH 3/8] wt-status: introduce wt_status_state_free_buffers() Martin Ågren
2020-09-10 19:03 ` [PATCH 4/8] worktree: drop useless call to strbuf_reset Martin Ågren
2020-09-10 19:15   ` Eric Sunshine
2020-09-10 19:39     ` Martin Ågren
2020-09-10 19:49       ` Eric Sunshine
2020-09-12 14:02         ` Martin Ågren
2020-09-10 19:03 ` [PATCH 5/8] worktree: update renamed variable in comment Martin Ågren
2020-09-10 19:03 ` [PATCH 6/8] worktree: rename copy-pasted variable Martin Ågren
2020-09-10 20:29   ` Junio C Hamano
2020-09-12 14:01     ` Martin Ågren
2020-09-27 13:29       ` Martin Ågren
2020-09-10 19:03 ` [PATCH 7/8] worktree: use skip_prefix to parse target Martin Ågren
2020-09-10 19:03 ` [PATCH 8/8] worktree: simplify search for unique worktree Martin Ågren
2020-09-10 19:28   ` Eric Sunshine
2020-09-10 19:48     ` Martin Ågren
2020-09-10 20:01       ` Eric Sunshine
2020-09-10 21:08         ` Junio C Hamano [this message]
2020-09-12  3:49 ` [PATCH 0/8] various wt-status/worktree cleanups Taylor Blau
2020-09-12 14:03   ` Martin Ågren
2020-09-27 13:15 ` [PATCH v2 0/7] " Martin Ågren
2020-09-27 13:15   ` [PATCH v2 1/7] wt-status: replace sha1 mentions with oid Martin Ågren
2020-09-27 13:15   ` [PATCH v2 2/7] wt-status: print to s->fp, not stdout Martin Ågren
2020-09-27 13:15   ` [PATCH v2 3/7] wt-status: introduce wt_status_state_free_buffers() Martin Ågren
2020-09-27 13:15   ` [PATCH v2 4/7] worktree: inline `worktree_ref()` into its only caller Martin Ågren
2020-09-28  5:30     ` Eric Sunshine
2020-09-28  6:57       ` Martin Ågren
2020-09-28  7:16         ` Eric Sunshine
2020-09-27 13:15   ` [PATCH v2 5/7] worktree: update renamed variable in comment Martin Ågren
2020-09-27 13:15   ` [PATCH v2 6/7] worktree: rename copy-pasted variable Martin Ågren
2020-09-27 13:15   ` [PATCH v2 7/7] worktree: use skip_prefix to parse target Martin Ågren

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