[shanemhansen]

I'll offer a counterpoint to the responses. Until go got generics, concurrent data structures were awkward. The stdlib now does include things like sync.Map.

In fact my experience has been that overuse of channels is a code smell that alot of new go developers fall into and later regret. There's a reason the log package uses a mutex for synchronization.

In general I think channels are great for connecting a few large chunks of your program together. Concurrency is great but also not every function call benefits from being turned into a distributed system.

I think that it would be a great idea to develop more concurrent go data structures with generics and I suspect inertia is what's keeping the community from doing it.

My credentials such as the are: been writing go since 1.0. worked at Google and taught go classes as well as owned some of the original go services (the downloads server aka payload server).

[hintymad]

Yeah, even with channels and goroutines, I’d imagine we can encapsulate them as primitives in containers like concurrency literatures often advocate. Case in point, it was fun to go through Pike’s talk Go Concurrency Patterns, yet I’m not sure all the patterns he discussed in the talk would be that simple to implement compared to just declaratively using well-packed containers

[int_19h]

Not just generics, but also a way to generalize iteration (i.e. the equivalent of Java iterators). Which Go has only got even more recently than generics.