[webkit-dev] Comments in the code (Was Please include function-level comments in change log entries)

Dana Jansens danakj at chromium.org
Fri Jul 13 11:03:41 PDT 2012


On Fri, Jul 13, 2012 at 1:56 PM, Ryosuke Niwa <rniwa at webkit.org> wrote:

> On Fri, Jul 13, 2012 at 5:57 AM, Stephen Chenney <schenney at chromium.org>wrote:
>
>>  I don't doubt there are poor comments, both outdated and useless.
>> That's a reviewing failure. You have simply highlighted the fact that any
>> standard for comments requires reviewer attention. Hence "cost of
>> maintaining comments".
>>
>
> I don't know how to review a patch and make sure all relevant comments are
> updated.
>
> As I have illustrated before, you can be modifying a function X, then a
> completely random function A which calls B that in turn calls C that in
> turns D ... that in turn calls X may have a comment dependent on the
> previous behavior of X without ever mentioning X. How am I supposed to know
> that there is such a comment?
>

How is that different than the same question but replace "comment" with
"behaviour"? In both cases A is no longer doing what it expected. Something
is going to break, and A will have to be fixed/updated, comment included.

- Dana
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