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From: Mansour Moufid <mansourmoufid@gmail.com>
To: Thomas Adam <thomas@xteddy.org>
Cc: Coccinelle <cocci@systeme.lip6.fr>
Subject: Re: [Cocci] Replacing a struct member with a function call
Date: Mon, 15 Mar 2021 22:48:19 -0400	[thread overview]
Message-ID: <CALogXGW1-EbJo4_8HhtWbv02aYWgKpMwJeXuDasrsZ2HPDVJhg@mail.gmail.com> (raw)
In-Reply-To: <CAOhcEPZx4tNocG4TJvQKg_6e6kyJPbWGtj52TaGhJqHD36ZfYw@mail.gmail.com>


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On Sun, Mar 14, 2021, 20:43 Thomas Adam <thomas@xteddy.org> wrote:

> Hello,
>
> I can see I was as clear as mud with my explanation -- apologies for
> that, so let me try again.
>
> In my original example:
>
> struct monitor {
>     struct {
>         int width;
>         int height
>     } virtual;
> };
>
> ... the members width and height aren't required any more, as they're
> actually computable generically, and don't belong in that struct.
> Instead, I have separate functions which can provide those values.
>
> So where I have in code, statements such as:
>
> struct monitor *m = this_monitor();
> int foo = m->virutal.width;
>
> I want to be able to substitute "m->virtual.width" with a function
> call "get_width()" -- which does not involve "struct monitor" at all.
> Indeed, the semantic patch I'm trying to apply now looks like this:
>
> @@
> struct monitor *m;
> @@
>
> - m->virtual.width;
> + get_width();
>
> ... and although spatch doesn't tell me of any errors, when I run it
> over my codebase, no modifications are made.  So clearly I'm still
> doing something wrong.


Remove the semi-colons. ;)

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  parent reply	other threads:[~2021-03-16  2:48 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-14  0:55 [Cocci] Replacing a struct member with a function call Thomas Adam
2021-03-14  6:10 ` Wolfram Sang
2021-03-14  9:16   ` Julia Lawall
2021-03-15  0:43     ` Thomas Adam
2021-03-15  6:38       ` Julia Lawall
2021-03-16  2:48       ` Mansour Moufid [this message]
2021-03-16  7:20         ` Julia Lawall
2021-03-18 18:19           ` Thomas Adam

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