Re: [RFC] Generators

On Sun, Aug 12, 2012 at 10:08 PM, Brian Moon <brian@moonspot.net> wrote: > Also, not allowing rewinding is unintuitive for something that is an > iterator in PHP. If I can foreach() it and I can call next() on it, I expect > to be able to reset() it as well. IMO, you would need to issue a FATAL PHP > error if that simply is not allowed. Or you have to have a second syntax for > what to do in that case. At that point, you are implementing Iterator. Currently I'm planning to implement the following behavior for rewind(): * If before first yield: Resume to first yield (this priming behavior is common to all the Iterator methods) * At first yield: No-op * After first yield: Recoverable fatal error So this would allow you to call ->rewind() after creating the generator, but will throw an error if you try to do so later. Another thing that I'd like to do is drop the ->close() method. It doesn't really make sense to explicitly close generators. Any objects to those two things? Nikita