[rfc] expose gdb values to python

[Thiago Jung Bauermann]

Daniel Jacobowitz wrote:
> On Thu, Sep 25, 2008 at 01:32:57AM -0300, Thiago Jung Bauermann wrote:
>> Is it useful to provide a casting mechanism, to enable for instance
>> access to elements from a specific type in the inheritance hierarchy?
> 
> I think so.  This reminds me of another reason why length is a
> peculiar concept here: GDB should (though I think does not, at
> present) support "v->D::x" and "v->C::x".  So v['C::x'] would make
> sense, but you can't iterate over things like that.  So maybe length
> should be the number of direct fields?  Or the number of fields + base
> classes?  Either way, I suggest it match what iterators do if you
> support iteration.

There's no iterator support. Not yet at least.

This version has no FIXMEs. It uses current_language for value printing, and
its length operation always fails with NotImplemented. Ok to commit?
-- 
[]'s
Thiago Jung Bauermann
IBM Linux Technology Center
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