From: Dmitry Gutov <dgutov@yandex.ru>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] emacs-25 504696d: Etags: yet another improvement in Ruby tags
Date: Fri, 5 Feb 2016 15:15:06 +0300 [thread overview]
Message-ID: <56B4924A.2020207@yandex.ru> (raw)
In-Reply-To: <83d1sbv25a.fsf@gnu.org>
On 02/05/2016 02:15 PM, Eli Zaretskii wrote:
>> alias_method :qux, :tee, attr_accessor(:bogus)
>>
>> or
>>
>> alias_method :qux, :tee, alias_method(:bogus, :bogus2)
>>
>> are the main options, I suppose.
>
> These should work for my purposes.
Great!
>> But they might also look misleading, and indicate that we don't
>> support the paren-using syntax intentionally.
>>
>> (It's another omission, but AFAICS nobody uses attr_XXX without parens
>> in the context we're interested in.)
>
> If it's important to support that, it should be hard to add.
I don't know how important it is, and I didn't want to bother you, but
it would be nice to have, for completeness. (See debbugs.gnu.org/22563)
We, the Emacs community, have our share of eccentrics who won't hesitate
to write code in an unusual way, and then be surprised anyway if some
things don't work.
>> I believe the file-name rules should be tested in a language-agnostic
>> way, or just with one language.
>
> I don't see how: the file names that trigger recognition as a specific
> language are part of the language-specific rules.
I'd think we could mostly rely on the fact that the general facility
works, and you haven't made a typo in Ruby_filenames or Ruby_suffixes.
Creating a bunch of files, and complicating etags's output just for
that, seems like an overkill.
> IOW, when etags
> sees a file whose basename is "Rakefile", it should process it as a
> Ruby file, and how can you test it does that without actually looking
> at the tags it produces for that file?
If you could write unit tests for etags code, you could have some for
the "detect language" function. Full-on integration tests, again, seem
like an overkill to me.
> E.g., the bug I fixed in
> f6213ce caused Makefile's to be processed as Fortran sources...
That one could be handled by a language-agnostic regression test, I
think. Or just test that for Makefile, but not worry about other languages.
Of course, I'm just speaking from my own experience, and could be
discounting how error-prone and/or inconsistent C is.
>> We're probably better in some things, and worse in others, than "Ripper
>> Tags" [3]. I haven't tried them yet myself.
>
> Maybe etags should acquire a feature whereby it could run external
> programs to help it find the tags. Something to think of for future
> projects, perhaps.
Not sure how ripper-tags would benefit from it (they can output in etags
format already), but you can look at
https://github.com/universal-ctags/ctags/blob/master/docs/xcmd.rst for
inspiration.
next prev parent reply other threads:[~2016-02-05 12:15 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20160203162536.2954.45438@vcs.savannah.gnu.org>
[not found] ` <E1aR0FM-0000mG-Up@vcs.savannah.gnu.org>
2016-02-03 23:46 ` [Emacs-diffs] emacs-25 504696d: Etags: yet another improvement in Ruby tags Dmitry Gutov
2016-02-04 3:48 ` Eli Zaretskii
2016-02-04 9:36 ` Dmitry Gutov
2016-02-04 17:28 ` Eli Zaretskii
2016-02-05 5:26 ` Dmitry Gutov
2016-02-05 5:29 ` Dmitry Gutov
2016-02-05 9:14 ` Eli Zaretskii
2016-02-05 10:11 ` Dmitry Gutov
2016-02-05 11:15 ` Eli Zaretskii
2016-02-05 11:26 ` Eli Zaretskii
2016-02-05 12:15 ` Dmitry Gutov [this message]
2016-02-05 14:34 ` Eli Zaretskii
2016-02-06 9:09 ` Eli Zaretskii
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