Nope I can’t. I can’t even compile this code. Maybe I should wait for better documentation on how to do it :3 Not sure if this was possible in earlier versions?
mickel8
Membrane Core Team
dimitarvp
Dude, I’ve no way of telling you like that out of thin air. 
If your code is not secret, make a GitHub project and I will help.
0
dimitarvp
Ah, I see, I haven’t dealt with this. Have you checked these docs?
Apparently you also have to:
- Use Rust’s
#[derive]directive; - Make an Elixir module that represents your Rust struct.
I’d offer you to not use normal structs though. IMO a regular tuple should be fine.
0
mickel8
Membrane Core Team
Thanks a lot. Indeed I didn’t read the above section in docs. Unfortunately I couldn’t make it works. Tuples are not an option as I want to return reference to struct that is being returned by functions from the third party lib. But I will investigate this 
0
dimitarvp
I can help with a PR but can’t promise anything quick, man, sorry. Way too busy these last several days.
1
mmmrrr
Unfortunately, no I was not able to solve this, yet. But after looking at your code I think we currently really have the same issue. So if I find something out, I’ll make sure to post an update here.
Meanwhile I’ll have to solve this a little differently for the time beeing (meaning: I’ll use a port) because I need a solution fast. But this won’t be ideal either, so I’ll come back to this approach later.
@dimitarvp thank you so much! 
2
mickel8
Membrane Core Team
@mmmrrr @dimitarvp I probably solved my issue. It turned out I should use rustler::init! and rustler::resource! macros. Here is full code. It compiles so that’s something
use rustler::resource::ResourceArc;
use rustler::{Env, Term, NifStruct};
rustler::atoms! {
ok,
error
}
rustler::init!("PineSSL", [add], load=load);
#[derive(NifStruct)]
#[module = "MyStruct"]
pub struct MyStruct {
pub a: i64
}
fn load(env: Env, _info: Term) -> bool {
rustler::resource!(MyStruct, env);
true
}
#[rustler::nif]
fn add(a: i64, b: i64) -> ResourceArc<MyStruct> {
ResourceArc::new(MyStruct{a: a+b})
}
macro rustler::resource! implements ResourceTypeProvider trait for MyStruct and in rustler::init! I can invoke my function load which then invokes rustler::resource!.
3
dimitarvp
Oh. But I thought this is included in the tutorial?
Sorry that I didn’t mention it, it’s kind of the default. But I should have!
0
mickel8
Membrane Core Team