On Fri, Mar 25, 2011 at 02:34:30PM +0100, Sebastian Redl wrote:
> namespace ns1 {
> extern "C++" {
> using namespace ns2;
> }
> }
>
> What you have to do is call DeclContext::getEnclosingNamespaceContext() on
> the context that contains the using directive, and check whether that is a
> TranslationUnitDecl or a NamespaceDecl.
I don't think that's right either, as now you would warn on this:
void foo() {
using namespace ns2;
}
I believe the correct thing to do is to iterate through
declaration context parents until you reach something that is not a
LinkageSpecDecl, and warn if it is a TranslationUnitDecl.
Thanks,
--
Peter
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