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From: Markus Elfring <Markus.Elfring@web.de>
To: Julia Lawall <julia.lawall@lip6.fr>
Cc: "René Scharfe" <l.s.r@web.de>,
	"Junio C Hamano" <gitster@pobox.com>,
	Coccinelle <cocci@systeme.lip6.fr>,
	git@vger.kernel.org
Subject: Re: [Cocci] git-coccinelle: adjustments for array.cocci?
Date: Sat, 16 Nov 2019 07:57:25 +0100	[thread overview]
Message-ID: <4ee4604e-0eb1-d4a6-24bb-52abe0db3f53@web.de> (raw)
In-Reply-To: <alpine.DEB.2.21.1911152000170.8961@hadrien>

>> https://github.com/git/git/blob/3edfcc65fdfc708c1c8f1d314885eecf9beb9b67/fast-import.c#L640
>>
>> I got the impression that the Coccinelle software is occasionally able
>> to determine from the search specification “sizeof(T)” the corresponding
>> data type for code like “*(t->entries)”.
>
> It can determine the type of t->entries if it has access to the definition
> of the type of t.

Should this type determination always work here because the data structure
“tree_content” for the parameter “t” of the function “grow_tree_content”
is defined in the same source file?
https://github.com/git/git/blob/3edfcc65fdfc708c1c8f1d314885eecf9beb9b67/fast-import.c#L85


>                    This type may be in a header file.  If you want
> Coccinelle to be able to find this information you can use the option
> --all-includes or --recursive-includes.  It will be more efficient with
> the option --include-headers-for-types.

Such information can be more helpful in other situations than the mentioned
test case.


>> But it seems that there are circumstances to consider where the desired
>> data type was not automatically determined.

Would you like to take the presented differences from the discussed
before/after comparison better into account?

Regards,
Markus
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  reply	other threads:[~2019-11-16  6:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <50c77cdc-2b2d-16c8-b413-5eb6a2bae749@web.de>
     [not found] ` <5189f847-1af1-f050-6c72-576a977f6f12@web.de>
     [not found]   ` <xmqqa790cyp1.fsf@gitster-ct.c.googlers.com>
     [not found]     ` <fe9b8c08-6fd4-d378-f3ff-8170381b10e0@web.de>
     [not found]       ` <xmqqr22b9ptk.fsf@gitster-ct.c.googlers.com>
     [not found]         ` <ba5d609a-16ea-d7e9-66e6-19aab94b2acd@web.de>
     [not found]           ` <53346d52-e096-c651-f70a-ce6ca4d82ff9@web.de>
     [not found]             ` <6c4ef61f-5fef-ffc8-82d6-ee42006756b4@web.de>
     [not found]               ` <aed296a6-bae0-6fcc-515e-ef96fed24ca6@web.de>
2019-11-15 11:11                 ` [Cocci] git-coccinelle: adjustments for array.cocci? Markus Elfring
2019-11-15 14:20                   ` Markus Elfring
2019-11-15 18:50                   ` Markus Elfring
2019-11-16  1:00                     ` Julia Lawall
2019-11-16  6:57                       ` Markus Elfring [this message]
2019-11-16  8:29                       ` Markus Elfring
2019-11-16 17:57                   ` Julia Lawall
2019-11-16 18:29                     ` Markus Elfring

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