From: Eli Zaretskii <eliz@gnu.org>
To: "Basil L. Contovounesios" <contovob@tcd.ie>
Cc: monnier@IRO.UMontreal.CA, emacs-devel@gnu.org
Subject: Re: Byte-compilation of custom themes
Date: Sat, 12 May 2018 10:04:10 +0300 [thread overview]
Message-ID: <831sehnymt.fsf@gnu.org> (raw)
In-Reply-To: <877eo9kjnl.fsf@tcd.ie> (contovob@tcd.ie)
> From: "Basil L. Contovounesios" <contovob@tcd.ie>
> Cc: <monnier@IRO.UMontreal.CA>, <emacs-devel@gnu.org>
> Date: Fri, 11 May 2018 21:43:42 +0100
>
> > We should at least have a comment there that we are relying on
> > custom-theme--load-path to do the test, and perhaps also an assertion.
>
> Do you mean a cl-assertion, or an emulation thereof?
I meant cl-assert.
> Either way, what is the benefit of barfing before directory-files does?
That you can control the text of the error message, and make it more
user-friendly. Also, an assertion clearly means we intended this not
to happen, rather than that the code failed to handle some valid
situation.
Once again, the minimum I requested was a comment; it's up to you
whether to use cl-assert. But see below.
> Wouldn't a docstring for custom-theme--load-path and a comment in
> custom-available-themes suffice for the reader (they do for me)?
We've seen many situations where code guidelines are violated, for
whatever reasons, so just documenting stuff is not enough. Moreover,
custom-theme--load-path might some day change and invalidate our
assumption. The way to prevent that from happening could be either
having the assertion in the caller, or by adding a test to the test
suite that makes sure the list returned by custom-theme--load-path
never includes anything but existing directories.
> (dolist (dir (custom-theme--load-path))
> + ;; `custom-theme--load-path' promises DIR exists.
"promises DIR exists and is a directory", I think.
> (defun custom-theme--load-path ()
> + "Expand `custom-theme-load-path' into list of directories.
> +Only existing directories are included in the path returned."
I'd find this text a bit of a riddle. How about this instead:
"Expand `custom-theme-load-path' into list of directories.
Members of `custom-theme-load-path' that either don't exist or are not
directories are omitted from the expansion."
Thanks.
next prev parent reply other threads:[~2018-05-12 7:04 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-20 21:01 Byte-compilation of custom themes Basil L. Contovounesios
2018-01-24 16:16 ` Stefan Monnier
2018-01-30 22:16 ` Basil L. Contovounesios
2018-01-31 2:26 ` Stefan Monnier
2018-02-01 0:45 ` Basil L. Contovounesios
2018-02-02 14:25 ` Stefan Monnier
2018-05-10 2:49 ` Basil L. Contovounesios
2018-05-10 2:54 ` Basil L. Contovounesios
2018-05-11 14:07 ` Eli Zaretskii
2018-05-11 14:02 ` Eli Zaretskii
2018-05-11 15:16 ` Basil L. Contovounesios
2018-05-11 16:03 ` Stefan Monnier
2018-05-11 20:03 ` Basil L. Contovounesios
2018-05-11 17:32 ` Eli Zaretskii
2018-05-11 20:43 ` Basil L. Contovounesios
2018-05-12 7:04 ` Eli Zaretskii [this message]
2018-06-01 20:48 ` Basil L. Contovounesios
2018-06-01 21:07 ` Basil L. Contovounesios
2018-06-02 11:24 ` Eli Zaretskii
2018-06-02 18:53 ` Basil L. Contovounesios
2018-06-02 19:32 ` Eli Zaretskii
2018-06-02 20:02 ` Basil L. Contovounesios
2018-06-03 3:52 ` Stefan Monnier
2018-06-03 11:21 ` Basil L. Contovounesios
2018-06-03 15:11 ` Eli Zaretskii
2018-06-03 16:08 ` Basil L. Contovounesios
2018-06-03 16:16 ` Eli Zaretskii
2018-06-03 17:48 ` Basil L. Contovounesios
2018-06-03 20:22 ` Stefan Monnier
2018-06-04 1:33 ` Basil L. Contovounesios
2018-07-03 7:57 ` Basil L. Contovounesios
2018-07-11 1:40 ` Stefan Monnier
2018-07-11 6:05 ` Basil L. Contovounesios
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