On Thursday, 6 February 2014 at 21:38:03 UTC, Dicebot wrote:
On Thursday, 6 February 2014 at 19:08:40 UTC, Adam D. Ruppe
wrote:
On Thursday, 6 February 2014 at 18:52:21 UTC, fra wrote:
Hey, wait a second. How do you throw without allocating?
I think exceptions should be ok. You optimize the typical
path, and exceptions are (by definition) an exceptional path.
If they are also unacceptable, you could restrict yourself to
nothrow functions. (Which can still throw Errors... but meh
they are even *more* exceptional)
Hardly so. Any exception allocation can trigger GC collection
cycle and Phobos does not provide any other way to handle data
errors. Any application that operates on some external user
input will be subject to DoS attack vector if it uses Phobos
directly.
It was huge performance killer for vibe.d last time I have
checked, for example.
Personally I don't think bad user input qualifies as an
exceptional case because it's expected to happen and the program
is expected to handle it (and let the user know) when it does.
That's just a matter of taste though.
