To finish, you would pass the same context to the execution group to support parallel streams, etc.
It is not a drastic change over Go’s error model but every node needs to handle the context cancellation/error properly. Again not hard - certainly doable. I think in some ways it would be easier than the current iterator discussion because the options are more limited in how you could do it (without additional language changes) > On Aug 11, 2022, at 3:37 PM, Robert Engels <reng...@ix.netcom.com> wrote: > > > I don’t think that is relevant. It is very difficult to do chaining with Go’s > error model. You can pass a shared context to every node and store the error > in the context and protect against concurrent access. It’s doable but not > easy. > > Map/reduce and most functional patterns are easily represented using chains. > > But like I said, I would use panic/recover in the framework to make it > easier. > > > >>> On Aug 11, 2022, at 3:27 PM, Jan Mercl <0xj...@gmail.com> wrote: >>> >> >> >> >>> On Thu, Aug 11, 2022, 21:36 Robert Engels <reng...@ix.netcom.com> wrote: >>> I’d say it certainly highlights a problem with Go’s error model. Exceptions >>> would fit nicely here - instead it seems you needed to ignore all error >>> handling - because chaining is impossible with error returns. >> >> >> It's okay if someone prefers the way Java does things, but the best thing >> about Go is IMHO that it is not Java. And I still hope it stays away from >> becoming Java as long as possible. >> >>> >>> A streams api with panic/recover is needed. >>> >>>> On Aug 11, 2022, at 12:55 PM, K. Alex Mills <k.alex.mi...@gmail.com> wrote: >>>> >>>> >>>> Hello Gophers, >>>> >>>> I recently had an opportunity to try out Go generics on a small pipelines >>>> package, along with some of my coworkers. >>>> >>>> The overall goal of this package is to provide helpers for separating >>>> concurrency from the core logic of the computation. The result was >>>> intended for I/O bound computations, and so it's likely inappropriate for >>>> managing short-lived goroutines. It takes a functional programming >>>> approach, providing helpers with familiar names seen in other APIs like >>>> Map, FlatMap, OptionMap, etc. One feature which I am particularly happy >>>> with is that concurrency concerns like worker pool size and channel >>>> buffers are configurable with minimal disruption to the rest of the code. >>>> >>>> Take a look at the library and its accompanying blog post. I'm open to any >>>> of your thoughts, suggestions, and issue reports. >>>> >>>> Sincerely, >>>> >>>> K. Alex Mills >>>> -- >>>> 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 on the web visit >>>> https://groups.google.com/d/msgid/golang-nuts/CALJzkY_zASs-YOukv6ciSO45b93jz39DmjAWA915kfBuwimkgQ%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 on the web visit >>> https://groups.google.com/d/msgid/golang-nuts/6954C3FB-0E78-4922-8889-90FA58BA3F16%40ix.netcom.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 on the web visit >> https://groups.google.com/d/msgid/golang-nuts/CAA40n-WfWSMbV8p79xXGbS2%2BQ0M8pQfUPupqGnzGAdbo%2BTx0JA%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 on the web visit https://groups.google.com/d/msgid/golang-nuts/E33056E5-0921-4EEB-B46C-9FDBF71B769C%40ix.netcom.com.
