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[Bug translator/13009] Allow @defined($foo) in probe predicates
- From: "jistone at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Wed, 20 Jul 2011 23:14:25 +0000
- Subject: [Bug translator/13009] Allow @defined($foo) in probe predicates
- Auto-submitted: auto-generated
- References: <bug-13009-6586@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=13009
--- Comment #2 from Josh Stone <jistone at redhat dot com> 2011-07-20 23:13:42 UTC ---
(In reply to comment #1)
> "But this gives "semantic error: unexpected @defined". "
>
> That's odd - the code should accept pretty general expressions.
That's coming from typeresolution_info::visit_defined_op, as it's not expecting
@defined expressions to survive this far. We may just need to tweak all the
var_expanding_visitor invocations to visit the predicate too.
> "and probes with empty bodies are discarded entirely."
>
> That's bug #11353.
Ah, yes, thanks for jogging my memory.
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