Ari Bellamy (Feb 10 2022 at 16:52): Ari Bellamy (Feb 10 2022 at 16:52):So, I've been going through the repo since I was invited yesterday and I think I am beginning to understand how platforms and Roc applications connect, but I just want to be clear, so I had a few questions.
roc_fx_myfunc, then write an Effect module that is hosted, not an interface or app, that exposes those functions, and then declare the function's type signature, but not implementation, sans roc_fx_, correct? Does that work the same way for all platform languages or just Rust (I am basing this on the cli example)? Folkert de Vries (Feb 10 2022 at 16:54):from a roc perspective, it does not matter what language the platform is written in
Folkert de Vries (Feb 10 2022 at 16:55):I think hello-world (or hello-zig/hello-rust) in the examples folder are good examples of a minimal platform
Folkert de Vries (Feb 10 2022 at 16:55):it just has roc create a string and then print it out
Folkert de Vries (Feb 10 2022 at 16:56):Then cli and benchmarks do some more stuff with the cli: reading numbers, printing strings from roc. This uses the hosted modules and Effect and Task
Folkert de Vries (Feb 10 2022 at 16:57):Finally, tui is the most interesting platform so far; it actually run an update loop allowing you to create an elm-like TEA or model-view-update application
Ari Bellamy (Feb 10 2022 at 16:59):Okay, so, looking at hello-zig again, each platform has to implement its own allocation strategy and panic behavior? Is there a list of roc_ functions that can/should be implemented in a platform somewhere?
Folkert de Vries (Feb 10 2022 at 17:31):that platform has them all
Last updated: Jul 26 2025 at 12:14 UTC