Hotreloading doesn't work with Complex stdlib module

[bsansouci]

Just writing this down so we remember to look into it one day. I have a project that uses the Complex module and the hotreloading is not liking it. When I run IndexHot I get a:

ERROR loading plugin: error while linking lib/bs/bytecode/lib.cma.
Reference to undefined global `Complex'

No idea why because Complex should be a module part of the stdlib... But maybe it has some dirty compiler hardcoded hacks to run faster and so you can't dynlink a module that uses Complex

[outkine]

The same is true for CamlinternalOO.
Complete error:

[1/1] Building lib.cma
bsb running with pid: 11680
Reloading hotloaded module
ERROR loading plugin: error while linking lib/bs/bytecode/lib.cma.
Reference to undefined global `CamlinternalOO'

[jozanza]

I also seem to be getting the Reference to undefined global `CamlinternalOO' error after adding some code that uses objects. 🤔

[bsansouci]

Interesting! I had no idea that OCaml wold forgo the OO runtime stuff if no objects were used. I'd recommend not using objects for now while I look into a fix :)

[jozanza]

@bsansouci yeah I switched it up and found an alternative way to encapsulate things. I'm pretty new to reasonml, and using objects was probably not the best approach anyways 😅

[bsansouci]

I wasn't gonna say it, but yeah, you'll get a lot of benefits from using records, functions and modules without the drawbacks of objects. Since you're new too, I think it'll be interesting for you to try these. They've substantially changed the way I code, leading to generally simpler and more robust code overall!
But I don't necessarily want to disallow objects because they do have benefits.

[outkine]

I think OCaml/Reason is a great learning tool because it gives you those two options. I'm planning on making two versions of my game - one with objects and one with modules - and then seeing which one works better.

[bsansouci]

Amazing effort, I'd love to hear how it's going and can offer help for how to shape your game in the functional way. Ping me on discord.

[jozanza]

Oh what's the Discord server for this sort of convo?