[cfe-dev] Patch & feedback request

[steve naroff]

On Jul 27, 2009, at 12:47 PM, Erik Verbruggen wrote:
>
>> How does objc treat CV qualifiers on catch types?  I don't think that
>> this makes sense, does it?
>>
>> @catch (NSString *const X) ..
>> @catch (NSString *volatile X) ..
>>
>> Also, what about CV qualifiers on the interface, like this:
>>
>> @catch (const NSString *X) ..
>> @catch (volatile NSString *X) ..
>
> Does ObjC use ActOnCXXTryBlock?

No...it uses ActOnObjCAtTryStmt(). CXX usually implies C++-specific.

> And as we're talking about more cases anyway, shouldn't clang warn on:
>
> try {
> } catch (Exception e) {}
>
> ... saying that an exception should be catched by reference?
>

The code excerpt doesn't give me enough info to respond. Is  
'Exception' above an ObjC interface/object? If so, Sema will complain,  
saying "interface type cannot be statically allocated".

snaroff

> Cheers,
> Erik.
>
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