Ian, just to note that your message is not at all lost. I just need to look at it carefully in front of a computer, which I won't be able to do today.
But if it works, I agree that looks like a nicer, more general API than mine proposal, which is exactly what I was hoping for, so many thanks! Regards, Nuno On Tue 25 Feb 2025, 20:24 Ian Lance Taylor, <i...@golang.org> wrote: > On Tue, Feb 25, 2025 at 11:52 AM 'Brian Candler' via golang-nuts > <golang-nuts@googlegroups.com> wrote: > > > > You can curry a function? > > > > On Tuesday, 25 February 2025 at 18:52:09 UTC Jason E. Aten wrote: > >> > >> Hi Ian, I'm not quite understanding -- is Push meant to take an input > seq too? like > >> > >> func Push[E any](inputSeq iter.Seq[E]) (seq iter.Seq[E], yield func(E), > stop func()) > >> ^^^^^^^^ > >> ? > > I'm suggesting that Push returns, conceptually, two things: an > iter.Seq, and a pair of functions. You hand the iter.Seq off to > something that expects an iter.Seq. You use the two functions to push > values into the iter.Seq. Just as iter.Pull gives you flexibility to > fetch values from the sequence however you like, iter.Push gives you > flexibility to push values into the sequence however you like, without > being tied to the lifespan of a single function. In the original > example, the values to push into the sequence would come from a method > call. > > This can all be done already with channels, of course, as shown by the > earlier examples. > > Ian > > > >> On Tuesday, February 25, 2025 at 6:15:40 PM UTC Ian Lance Taylor wrote: > >>> > >>> On Tue, Feb 25, 2025 at 6:17 AM Nuno Cruces <ncr...@gmail.com> wrote: > >>> > > >>> > I wanted a solution that doesn't necessarily involve goroutines and > channels, for the same reason that iter.Pull was created: because > goroutines and channels add unnecessary parallelism that has the potential > to introduce data races, when what is needed is concurrency without > parallelism. > >>> > >>> I think what you're presenting is an argument for > >>> > >>> package iter > >>> > >>> // Push returns an iterator, a yield function, and a stop function. > >>> // The iterator will return all the values passed to the yield > function. > >>> // The iterator will stop when the stop function is called. > >>> // This provides a way to flexibly convert a sequence of values into a > Seq. > >>> func Push[E any]() (seq iter.Seq[E], yield func(E), stop func()) > >>> > >>> Ian > > > > -- > > You received this message because you are subscribed to the Google > Groups "golang-nuts" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to golang-nuts+unsubscr...@googlegroups.com. > > To view this discussion visit > https://groups.google.com/d/msgid/golang-nuts/b46f0864-9dfd-4c1c-b34a-dff83decae7fn%40googlegroups.com > . > > -- > You received this message because you are subscribed to a topic in the > Google Groups "golang-nuts" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/golang-nuts/-Kmtx-sr3G8/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > golang-nuts+unsubscr...@googlegroups.com. > To view this discussion visit > https://groups.google.com/d/msgid/golang-nuts/CAOyqgcWmTubCfieowziq9BgyqiJddp6sv2g%3Dm4v44FF5P-5aHg%40mail.gmail.com > . > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/golang-nuts/CAM0U__-R-RnAFsyFV_cDRGogonV4Q5%3DHMk36p5oRTNnfXLTY4w%40mail.gmail.com.
