On 18 August 2017 at 02:32, bitwise via Digitalmars-d < digitalmars-d@puremagic.com> wrote:
> This came to mind while working on a set of containers. > > @safety often comes with a performance cost. For example, any container > that wants to give out a range or iterator has to have a ref-counted or GC > allocted payload to ensure safety. In a high-performance context though, > the performance hit may be unacceptable. > This sounds like a job for `scope`. Eg, given a container, the function that returns the range/iterator should return a `scope` attributed range/iterator. This should insist that the lifetime of the range that is returned be no longer than the container that issued it. We've needed scope to address these issues for a very long time, and it finally arrived! I'm not sure how far it extends yet though, it's not well documented yet, and I haven't seen it get a lot of action. I'm not sure where the boundaries are.
