[python][rfc] Attempt to print the base class if a there is no Python pretty-printer for a derived class.

[Phil Muldoon]

Paul Pluzhnikov wrote:
> On Fri, Mar 27, 2009 at 10:34 AM, Tom Tromey <tromey@redhat.com> wrote:
>   
>>>>>>> "Phil" == Phil Muldoon <pmuldoon@redhat.com> writes:
>>>>>>>               
>> Looking pretty good :)
>>
>> Phil> +  /* Attempt to run the Python pretty-printers on the base class of
>> Phil> +  the derived class. */
>>     
>
> I can't tell whether the patch would work for 'class X: public Y ...'
>   

It will. I really should have appended my working examples, but decided 
not too. I know better next time ;)

> Also, here is an earlier thread on the same subject:
> http://sourceware.org/ml/archer/2008-q4/msg00503.html
>
>   

I've nothing really to add to what Tom already mentioned. But as  
printer selection criteria for a value is now pretty much deferred to 
the printers themselves, the circumstances discussed in that thread 
changed. In this case it was just easier to add a last-chance effort in 
the c++ class GDB printer itself.  You can always write a base-class 
test which is more specialized in the Python printer  by mining the 
fields for base classes.

Regards

Phil