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Elixir wrapper for Yjs

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y_ex native yex src subscription.rs
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native/yex/src/subscription.rs 

use rustler::{Env, ResourceArc};

use std::sync::Mutex;

use yrs::*;



use crate::{error::NifError, wrap::NifWrap, ENV};



pub type SubscriptionResource = NifWrap<Mutex<Option<Subscription>>>;

#[rustler::resource_impl]

impl rustler::Resource for SubscriptionResource {}



#[rustler::nif]

fn sub_unsubscribe(env: Env<'_>, sub: ResourceArc<SubscriptionResource>) -> Result<(), NifError> {

    ENV.set(&mut env.clone(), || {

        if let Ok(mut sub) = sub.0.lock() {

            *sub = None;

            Ok(())

        } else {

            Err(NifError::Message("Failed to unsubscribe".to_string()))

        }

    })

}