* [Cocci] Checking parsing difficulties around SmPL when constraints
@ 2019-09-11 7:42 Markus Elfring
2019-09-11 8:19 ` Julia Lawall
0 siblings, 1 reply; 3+ messages in thread
From: Markus Elfring @ 2019-09-11 7:42 UTC (permalink / raw)
To: Coccinelle
Hello,
A specific test case is available for the semantic patch language.
https://github.com/coccinelle/coccinelle/blob/560c3d02e2085e83e9bcd40842eec7e774140131/tests/nest3.cocci
Can the following code variant work also under other circumstances?
@extra@
expression x;
position p;
@@
(sizeof(*(x@p))
|__alignof__(*(x@p))
)
@display@
expression action, x, y, z;
position p != extra.p;
statement es;
@@
*if (!x)
{
(<+... when != (x) = y
(
* *(x@p)
| action(z,
* x@p
, ...)
)
...+>);
}
else
es
elfring@Sonne:~/Projekte/Coccinelle/janitor> spatch --parse-cocci show_null_pointer_usage13.cocci
…
minus: parse error:
File "show_null_pointer_usage13.cocci", line 16, column 11, charpos = 178
around = 'when',
whole content = (<+... when != (x) = y
Regards,
Markus
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [Cocci] Checking parsing difficulties around SmPL when constraints
2019-09-11 7:42 [Cocci] Checking parsing difficulties around SmPL when constraints Markus Elfring
@ 2019-09-11 8:19 ` Julia Lawall
2019-09-11 9:09 ` Markus Elfring
0 siblings, 1 reply; 3+ messages in thread
From: Julia Lawall @ 2019-09-11 8:19 UTC (permalink / raw)
To: Markus Elfring; +Cc: Coccinelle
[-- Attachment #1: Type: text/plain, Size: 1174 bytes --]
On Wed, 11 Sep 2019, Markus Elfring wrote:
> Hello,
>
> A specific test case is available for the semantic patch language.
> https://github.com/coccinelle/coccinelle/blob/560c3d02e2085e83e9bcd40842eec7e774140131/tests/nest3.cocci
>
> Can the following code variant work also under other circumstances?
No, I don't think so. I don't think that when is supported on
expressions.
julia
>
> @extra@
> expression x;
> position p;
> @@
> (sizeof(*(x@p))
> |__alignof__(*(x@p))
> )
>
> @display@
> expression action, x, y, z;
> position p != extra.p;
> statement es;
> @@
> *if (!x)
> {
> (<+... when != (x) = y
> (
> * *(x@p)
> | action(z,
> * x@p
> , ...)
> )
> ...+>);
> }
> else
> es
>
>
> elfring@Sonne:~/Projekte/Coccinelle/janitor> spatch --parse-cocci show_null_pointer_usage13.cocci
> …
> minus: parse error:
> File "show_null_pointer_usage13.cocci", line 16, column 11, charpos = 178
> around = 'when',
> whole content = (<+... when != (x) = y
>
>
> Regards,
> Markus
> _______________________________________________
> Cocci mailing list
> Cocci@systeme.lip6.fr
> https://systeme.lip6.fr/mailman/listinfo/cocci
>
[-- Attachment #2: Type: text/plain, Size: 136 bytes --]
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https://systeme.lip6.fr/mailman/listinfo/cocci
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-09-11 7:42 [Cocci] Checking parsing difficulties around SmPL when constraints Markus Elfring
2019-09-11 8:19 ` Julia Lawall
2019-09-11 9:09 ` Markus Elfring
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