From: Julia Lawall <julia.lawall@inria.fr>
To: Markus Elfring <Markus.Elfring@web.de>
Cc: Coccinelle <cocci@systeme.lip6.fr>
Subject: Re: [Cocci] More support for SmPL data processing with databases?
Date: Mon, 13 Apr 2020 18:10:48 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.21.2004131809580.3035@hadrien> (raw)
In-Reply-To: <ee0a51ed-e73f-c71e-5548-ddff136a5028@web.de>
On Mon, 13 Apr 2020, Markus Elfring wrote:
> >> I would find it nice to explain the different software behaviour for the mentioned
> >> SmPL code variants
> >
> > Run spatch -parse-cocci and you will easily see. The if stays in the same
> > place. When the isomorphism exchanges the branches, the condition gets
> > negated, so in one case you get the position of the full condition and
> > in the other case you get the position of the part of the condition under
> > the negation.
>
> Do any of these transformations avoid the reporting of duplicate source
> code positions?
Scripts are run for each set of metavariable bindings. But there is no
special treatment of positions.
julia
>
>
> >>> I think that you just want to disable the isomorphism. Put disable neg_if
> >>> in the initial @@ of your rule.
>
> Will a need evolve to switch isomorphisms completely off for safer
> (and efficient) analysis of original source code?
>
> Regards,
> Markus
>
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next prev parent reply other threads:[~2020-04-13 16:11 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-10 15:07 [Cocci] Searching for functions with negative return values as error indication Markus Elfring
2020-04-10 15:12 ` Julia Lawall
2020-04-10 16:01 ` Markus Elfring
2020-04-11 13:43 ` [Cocci] Reporting variations of condition checks according to function calls Markus Elfring
2020-04-11 14:01 ` Julia Lawall
2020-04-11 14:06 ` Markus Elfring
2020-04-11 17:25 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.2004112036270.2369@hadrien>
2020-04-11 18:50 ` Markus Elfring
2020-04-12 8:06 ` [Cocci] More support for SmPL data processing with databases? Markus Elfring
2020-04-12 8:51 ` Julia Lawall
2020-04-12 9:01 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.2004121115210.2419@hadrien>
2020-04-12 9:27 ` [Cocci] Checking the application of the SmPL isomorphism “drop_else” Markus Elfring
2020-05-03 9:08 ` Markus Elfring
2020-04-12 16:52 ` [Cocci] More support for SmPL data processing with databases? Markus Elfring
[not found] ` <alpine.DEB.2.21.2004121904290.2419@hadrien>
2020-04-12 17:14 ` Markus Elfring
2020-04-13 7:10 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.2004130957540.3035@hadrien>
2020-04-13 8:23 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.2004131029330.3035@hadrien>
2020-04-13 8:47 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.2004131056350.3035@hadrien>
2020-04-13 9:03 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.2004131031130.3035@hadrien>
2020-04-13 8:58 ` Markus Elfring
2020-04-13 12:48 ` Markus Elfring
2020-04-13 13:57 ` Julia Lawall
2020-04-13 14:23 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.2004131627470.3035@hadrien>
2020-04-13 14:50 ` Markus Elfring
2020-04-13 14:59 ` Julia Lawall
2020-04-13 15:19 ` Markus Elfring
2020-04-13 16:00 ` Julia Lawall
2020-04-13 16:08 ` Markus Elfring
2020-04-13 16:10 ` Julia Lawall [this message]
2020-04-13 16:14 ` Markus Elfring
2020-04-12 13:01 ` [Cocci] Reporting variations of condition checks according to function calls Markus Elfring
2020-04-12 13:27 ` Julia Lawall
2020-04-12 13:54 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.2004121624180.2419@hadrien>
2020-04-12 14:35 ` Markus Elfring
2020-04-12 14:41 ` Julia Lawall
2020-04-12 14:48 ` Markus Elfring
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