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Re: Canonical list of reserved words ?
- From: "Daniel P. Berrange" <berrange at redhat dot com>
- To: Josh Stone <jistone at redhat dot com>
- Cc: systemtap at sourceware dot org
- Date: Thu, 1 Nov 2012 15:53:14 +0000
- Subject: Re: Canonical list of reserved words ?
- References: <20121101144940.GE7059@redhat.com> <509299F6.30805@redhat.com>
- Reply-to: "Daniel P. Berrange" <berrange at redhat dot com>
On Thu, Nov 01, 2012 at 08:49:10AM -0700, Josh Stone wrote:
> On 11/01/2012 07:49 AM, Daniel P. Berrange wrote:
> > We've had fairly frequent bugs in QEMU where generated tapsets contain
> > variables clashing with systemd reserved words. eg
> >
> > https://bugzilla.redhat.com/show_bug.cgi?id=871286
> >
> > Currently QEMU's generator does this
> >
> > for name in e.args.names():
> > # Append underscore to reserved keywords
> > if name in ('limit', 'in', 'next', 'self', 'function'):
> > name += '_'
> > out(' %s = $arg%d;' % (name, i))
> > i += 1
> >
> >
> > To avoid this proper in future I'm looking for a full list of all
> > systemtap reserved words. I've looked at the docs but not found a
> > clear list yet, so can someone point me int he right direction
>
> If it's not in the docs, we should probably add it.
>
> In the source, the list of keywords is populated here:
> http://sourceware.org/git/gitweb.cgi?p=systemtap.git;a=blob;f=parse.cxx#l1329
>
> probe global function if else for foreach in limit return delete
> while break continue next string long try catch
>
> Your list includes "self", which isn't actually significant in stap, but
> that's typical enough that maybe you should just leave it in, and we'll
> feel free to add that one later. :)
Thanks Josh / Frank, I'll update QEMU to match this list.
Regards,
Daniel
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