Re: [VOTE] Allowing use of exceptions in the engine
On 10 December 2013 19:42, Stas Malyshev <smalyshev@sugarcrm.com> wrote:
> Hi!
>
> > If an application fatal'd, then I don't really care if my data structures
> > are invalid: I just want to save what I can save and quit. If I want to
>
> The part that you're missing here is that it's not your data structures
> that may be invalid, it's engine's.
Not missing anything here - I know that stuff may be hugely broken (stack
pointers & co for example).
> And what you call "I can save and
> quit", the engine calls "execute arbitrary amount of code", for which it
> needs valid data structures. Unless your "save and quit" code does not
> call any functions and does nothing useful at all, from the engine POV
> your "save and quit" is no different from "continue working normally" -
> it needs all the data structures to be in a perfect order as if nothing
> bad happened. For some errors, it may be possible. For some, it may be
> possible but hard.
Yes, and it looks like Nikic actually identified a list of what looks like
a big dealw and what not. I know it may be hard to guarantee that code can
be executed after a fatal, but I wouldn't deny it upfront just because it's
a non-trivial problem (or an undefined state of the engine).
Marco Pivetta
http://twitter.com/Ocramius
http://ocramius.github.com/
Thread (12 messages)