Stream: beginners

Topic: ✔ How do I import a library?

view this post on Zulip Jasper Woudenberg (Mar 19 2024 at 18:44):

I'm trying to take a dependency on the roc-lang/unicode library. I've looked at some examples, and now have the following in my main.roc file:

package "rvn"
    exposes [Rvn]
    packages {
        unicode: "https://github.com/roc-lang/unicode/archive/09f22e6aee3adedc2b5cf45f654956b41c157202.tar.br",
    }

In another module I'm doing this:

interface Rvn
    exposes []
    imports [
        unicode.CodePoint,
    ]

When I now try to run roc build or roc test, something is happening because my fans start spinning and I see a single CPU core go to 100%. I cloned the unicode repo and ran roc build in it for comparison, and that completes within a second. Other than that I'm not seeing any output from the command. I've let it run for a couple of minutes, then killed it. Should I just be a bit more patient, or am I making a mistake?

I've also tried the json package, but the same thing happens.

view this post on Zulip Richard Feldman (Mar 19 2024 at 18:48):

ah, there's currently a bug with packages not being able to import other packages :sweat_smile:

view this post on Zulip Richard Feldman (Mar 19 2024 at 18:48):

@Agus Zubiaga is working on changes to the module system which will (among other things) fix this

view this post on Zulip Jasper Woudenberg (Mar 19 2024 at 18:52):

Ah, that explains it. Many thanks!

view this post on Zulip Notification Bot (Mar 19 2024 at 18:52):

Jasper Woudenberg has marked this topic as resolved.

Last updated: Jul 26 2025 at 12:14 UTC