On Fri, Apr 18, 2008 at 1:28 PM, David MacIver <
david.maciver@...> wrote:
> > Non-local returns are implemented via exceptions, so they are not
> > really efficient. I think any move away from iterators is likely to
> > imply a performance loss.
>
> I disagree. Exceptions are extremely fast on the JVM and have been for
> years. They basically compile to gotos. It's just stack trace
> generation which is slow, which you can surpress in your
> implementation of Throwable (which I assume Scala's non-local returns
> do. If not, I'd consider that a bug. I'll check later).
Looks like it doesn't. I've filed a bug:
https://lampsvn.epfl.ch/trac/scala/ticket/775
