Author nascheme
Recipients Demur Rumed, Mark.Shannon, benjamin.peterson, christian.heimes, mark.dickinson, nascheme, ncoghlan, pitrou, rhettinger, serhiy.storchaka, trent
Date 2018-01-03.17:54:21
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <20180103175418.n3zk3ggqpgtdquyk@python.ca>
In-reply-to <1514565955.87.0.213398074469.issue17611@psf.upfronthosting.co.za>
Content
On 2017-12-29, Mark Shannon wrote:
> One point I didn't cover is jumping to a new line in the debugger.
> Implementing that reliably for finally blocks with code
> duplication is tricky and would mean adding a number of marker
> bytecodes.  Which is a big point in favour of the JSR style.

Could we virtually execute the code, forwards or backwards,
starting from f_lasti?  For conditional jumps, we would follow both
branches.  Stop when we find the line number we want.  If we hit an
opcode that causes a fblock push or pop, abort.

I started implementing this as a proof of concept but didn't finish.
It seems to fit most naturally as an exported function of
Python/peephole.c.  That file already does a lot of similar stuff.
History
Date User Action Args
2018-01-03 17:54:22naschemesetrecipients: + nascheme, rhettinger, mark.dickinson, ncoghlan, pitrou, christian.heimes, benjamin.peterson, trent, Mark.Shannon, serhiy.storchaka, Demur Rumed
2018-01-03 17:54:21naschemelinkissue17611 messages
2018-01-03 17:54:21naschemecreate