[Python-Dev] about line numbers

[Vladimir Marangozov]

Guido van Rossum wrote:
> 
> 
> I'm a little anxious about modifying the code, and was thinking myself
> of a way to specify a bitvector of addresses where to break.  But that
> would still cause some overhead for code without breakpoints, so I
> guess you're right (and it's certainly a long-standing tradition in
> breakpoint-setting!)
> 

Hm. You're probably right, especially if someone wants to inspect
a code object from the debugger or something. But I belive, that
we can manage to redirect the instruction pointer in the beginning
of eval_code2 to the *copy* of co_code, and modify the copy with
CALL_TRACE, preserving the original intact.

-- 
       Vladimir MARANGOZOV          | Vladimir.Marangozov@inrialpes.fr
http://sirac.inrialpes.fr/~marangoz | tel:(+33-4)76615277 fax:76615252