Re: [Cocci] Can the current function name be passed to a Python snippet?

From: Julia Lawall <julia.lawall@lip6.fr>
To: Timur Tabi <timur@kernel.org>
Cc: cocci <cocci@systeme.lip6.fr>
Subject: Re: [Cocci] Can the current function name be passed to a Python snippet?
Date: Wed, 5 Dec 2018 07:35:33 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.21.1812050734520.2670@hadrien> (raw)
In-Reply-To: <CAOZdJXUDY=D7mbCGTqyseq6nDsevAr9TFg9_utKnSQWPjH5a5g@mail.gmail.com>

On Tue, 4 Dec 2018, Timur Tabi wrote:

> On Tue, Dec 4, 2018 at 4:02 PM Timur Tabi <timur@kernel.org> wrote:
> > Based on what I've read, I need to add < > in order for spatch to run
> > the rule multiple times within a function.  But if I change r4 to
> > this:
> >
> > @r4 depends on rules@
> > identifier func;
> > expression x;
> > constant char[] c;
> > @@
> > func(...) {
> > <...
> > NV_PRINTF2(x, c, ...)
> > ...>
> > }
> >
> > It doesn't work at all.
>
> Ok, I changed it to
>
> func(...) {
> <+...
> NV_PRINTF2(x, c, ...)
> ...+>
> }
>
> and now it works.  I don't know why I needed the +'s, but at least it
> works now.  Thanks.

This means that the rule only applies when there is at least one
occurrence of the pattern in between the <+... ...+>.

The previous rule matched all functions.

julia
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