From: Dmitry Gutov <dgutov@yandex.ru>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 20629@debbugs.gnu.org
Subject: bug#20629: 25.0.50; Regression: TAGS broken, can't find anything in C++ files.
Date: Fri, 29 May 2015 20:12:34 +0300 [thread overview]
Message-ID: <55689E02.5040605@yandex.ru> (raw)
In-Reply-To: <jwvvbfbbab7.fsf-monnier+emacsbugs@gnu.org>
On 05/29/2015 07:51 PM, Stefan Monnier wrote:
> FWIW, doubling the size of the TAGS file will also double the size of
> the obarray and hence increase the completion time similarly regardless
> of whether we keep using an obarray or if we switch to searching the
> TAGS buffers.
Completion using obarray is currently an order of magnitude (or two)
faster than the proposed patch that just uses search. Doubling that
won't be a problem.
And the size of obarray may grow more than twice as big, or only a
little, depending on what we're comparing to. The latter - if we're
dealing with a C++ codebase with a lot of methods with the same name
(and comparing against the same codebase where all names are qualified).
In any case, we can choose which entries to include in the obarray, in
Lisp. If we don't want the unqualified names in completions (or the
qualified ones, for some reason), we won't put them in the obarray, but
we'll still be able to find them if asked by the user.
> Yet another alternative is to build a trie, which would speed up
> prefix (and partial) completion (but not substring completion).
It doesn't seem warranted thus far. Displaying the completions currently
takes considerably longer than finding them in the obarray.
next prev parent reply other threads:[~2015-05-29 17:12 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-22 5:57 bug#20629: 25.0.50; Regression: TAGS broken, can't find anything in C++ files Jan D.
2015-05-23 11:54 ` Jan Djärv
2015-05-23 12:04 ` Dmitry Gutov
2015-05-23 12:15 ` Jan Djärv
2015-05-23 12:18 ` Dmitry Gutov
2015-05-23 12:28 ` Jan Djärv
2015-05-23 12:39 ` Dmitry Gutov
2015-05-23 13:51 ` Eli Zaretskii
2015-05-23 13:50 ` Eli Zaretskii
2015-05-23 14:46 ` Eli Zaretskii
2015-05-23 15:56 ` Eli Zaretskii
2015-05-25 15:15 ` Eli Zaretskii
2015-05-25 21:17 ` Dmitry Gutov
2015-05-26 2:35 ` Eli Zaretskii
2015-05-26 10:16 ` Dmitry Gutov
2015-05-26 15:06 ` Eli Zaretskii
2015-05-26 19:00 ` Dmitry Gutov
2015-05-26 19:23 ` Eli Zaretskii
2015-05-26 21:01 ` Stefan Monnier
2015-05-28 11:54 ` Dmitry Gutov
2015-05-28 12:59 ` Dmitry Gutov
2015-05-26 23:56 ` Dmitry Gutov
2015-05-27 14:28 ` Eli Zaretskii
2015-05-27 15:28 ` Dmitry Gutov
2015-05-27 15:46 ` Eli Zaretskii
2015-05-27 15:54 ` Dmitry Gutov
2015-05-27 16:23 ` Eli Zaretskii
2015-05-27 23:50 ` Dmitry Gutov
2015-05-28 2:50 ` Eli Zaretskii
2015-05-28 10:22 ` Dmitry Gutov
2015-05-28 14:56 ` Eli Zaretskii
2015-05-28 15:32 ` Dmitry Gutov
2015-05-28 16:34 ` Eli Zaretskii
2015-05-29 0:09 ` Dmitry Gutov
2015-05-29 6:48 ` Glenn Morris
2015-05-29 8:09 ` Eli Zaretskii
2015-05-29 12:34 ` Francesco Potortì
2015-05-29 9:27 ` Dmitry Gutov
2015-05-29 8:12 ` Eli Zaretskii
2015-05-29 14:05 ` Dmitry Gutov
2015-05-29 16:51 ` Stefan Monnier
2015-05-29 17:12 ` Dmitry Gutov [this message]
2015-05-29 19:19 ` Stefan Monnier
2015-05-29 20:33 ` Dmitry Gutov
2015-05-29 21:41 ` etags completion table (was: bug#20629: 25.0.50; Regression: TAGS broken, can't find anything in C++ files) Stefan Monnier
2015-05-29 23:58 ` etags completion table Dmitry Gutov
2015-05-30 4:00 ` Stefan Monnier
2015-05-30 11:50 ` Dmitry Gutov
2015-05-31 0:57 ` Stefan Monnier
2015-05-29 18:28 ` bug#20629: 25.0.50; Regression: TAGS broken, can't find anything in C++ files Eli Zaretskii
2015-05-29 20:01 ` Dmitry Gutov
2015-05-29 20:35 ` Eli Zaretskii
2015-05-29 22:36 ` Dmitry Gutov
2015-05-30 6:52 ` Eli Zaretskii
2015-05-30 12:52 ` Dmitry Gutov
2015-05-30 13:03 ` Eli Zaretskii
2015-05-30 14:21 ` Francesco Potortì
2015-05-30 14:44 ` Dmitry Gutov
2015-05-28 11:35 ` Francesco Potortì
2015-05-28 11:46 ` Dmitry Gutov
2015-05-28 12:16 ` Francesco Potortì
2015-05-28 13:00 ` Dmitry Gutov
2015-05-28 13:12 ` Francesco Potortì
2015-05-28 15:04 ` Eli Zaretskii
2015-05-28 15:14 ` Francesco Potortì
2015-05-28 15:29 ` Francesco Potortì
2015-05-29 17:13 ` Dmitry Gutov
2015-05-30 12:06 ` Eli Zaretskii
2015-05-30 12:30 ` Dmitry Gutov
2015-05-30 12:46 ` Eli Zaretskii
2015-05-30 13:42 ` Dmitry Gutov
2015-05-30 14:31 ` Eli Zaretskii
2015-05-30 15:03 ` Dmitry Gutov
2015-05-30 16:37 ` Eli Zaretskii
2015-05-30 17:46 ` Dmitry Gutov
2015-05-30 18:46 ` Eli Zaretskii
2015-05-30 19:42 ` Dmitry Gutov
2015-11-26 3:23 ` Dmitry Gutov
2015-11-26 15:43 ` Eli Zaretskii
2015-11-26 16:12 ` Dmitry Gutov
2015-11-26 16:32 ` Eli Zaretskii
2015-11-27 3:54 ` Dmitry Gutov
2016-03-19 18:45 ` Eli Zaretskii
2015-05-30 17:01 ` Francesco Potortì
2015-05-30 18:13 ` Dmitry Gutov
2015-05-30 18:42 ` Eli Zaretskii
2015-05-30 19:35 ` Francesco Potortì
2015-05-30 20:04 ` Dmitry Gutov
2015-05-30 22:35 ` Francesco Potortì
2015-05-31 0:34 ` Dmitry Gutov
2015-05-31 21:46 ` bug#20629: Fwd: bug#20703: 24.4; Stack overflow in regexp matcher Francesco Potortì
2015-05-31 22:20 ` Dmitry Gutov
2015-05-31 22:40 ` Francesco Potortì
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