Stream: beginners

Topic: does roc have a way to create Ranges like in Rust

Jonas (Dec 06 2024 at 14:01):

does roc have a way to create Ranges like in Rust? I mean something 1..10 and pattern match on it then

Anthony Bullard (Dec 06 2024 at 14:11):

Check out the docs :wink:

Jonas (Dec 06 2024 at 14:30):

thanks

Brendan Hansknecht (Dec 06 2024 at 17:48):

Warning: ranges create a list

Brendan Hansknecht (Dec 06 2024 at 17:48):

So perf can be really bad depending on the use.

Jafar Husain (Jan 19 2025 at 10:43):

@Brendan Hansknecht

Am I mistaken, or is the plan to improve perf w/ fusion eventually? It seems like with all of the (appreciated) syntax changes, fusion has probably been bumped down in priority correct? I don't think I saw this in the list of features planned for 0.1.

Sam Mohr (Jan 19 2025 at 11:00):

Yes, that's definitely a post-0.1.0 thing. We're trying to focus on having a stable core that looks like Roc will look like in the future, and one that has a stable, friendly experience for newcomers

Sam Mohr (Jan 19 2025 at 11:00):

We don't need perf-oriented features to make that happen, so they're lower priority

Richard Feldman (Jan 19 2025 at 12:27):

also a new paper came out about a new approach to it, and we need to revisit the planned approach for how to do it accordingly (might stick with the previous plan, but also might want to change it)

Sam Mohr (Jan 19 2025 at 12:51):

Got a link to that paper? :eyes:

Richard Feldman (Jan 19 2025 at 13:23):

we talked about it on here somewhere briefly a few months ago, but I don't remember where exactly :sweat_smile:

Sam Mohr (Jan 19 2025 at 13:24):

Oh, I know that one. I thought there was an even newer one!

Last updated: Jul 26 2025 at 12:14 UTC