[cfe-dev] objc method lookup in super class implementation

[Jean-Daniel Dupas]

A second version.

The "Lookup Private Instance Method" code is factored in a Sema method  
that is used in default method lookup,
super method lookup and also to find instance method of the root class  
in class method lookup.

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Le 8 mars 09 à 18:03, fjahanian a écrit :

> This patch is good and matches gcc's behavior (Steve's comment  
> withstanding).
> But a future strategy would be to do this checking as a final pass  
> over all implementations,
> to avoid warning being dependent on order of @implementation  
> declarations.
> Compile time would be a concern in that case, but multiple  
> implementations in
> one TU is generally not that common.
>
> - Fariborz
>
> On Mar 8, 2009, at 4:09 AM, Jean-Daniel Dupas wrote:
>
>> Hello,
>>
>> When clang lookup a method, it searches in the class implementation  
>> if it is in scope,  but it does not try to search in super class  
>> implementation that may be in the scope too.
>>
>> The result is that it emits "may not responds to selector" warning  
>> where it is obvious that the object will, as its superclass  
>> implement it.
>>
>> Here is a patch to lookup in superclasses implementations (if in  
>> scope), and a test case.
>>
>>
>>
>> <lookup-superimpl.patch>
>>
>> _______________________________________________
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>> cfe-dev at cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>
>