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Mix compiler and runtime helpers for Rustler.

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rustler priv templates basic src lib.rs
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priv/templates/basic/src/lib.rs 

use rustler::{Encoder, Env, Error, Term};



mod atoms {

    rustler_atoms! {

        atom ok;

        //atom error;

        //atom __true__ = "true";

        //atom __false__ = "false";

    }

}



rustler::rustler_export_nifs! {

    "<%= native_module %>",

    [

        ("add", 2, add)

    ],

    None

}



fn add<'a>(env: Env<'a>, args: &[Term<'a>]) -> Result<Term<'a>, Error> {

    let num1: i64 = args[0].decode()?;

    let num2: i64 = args[1].decode()?;



    Ok((atoms::ok(), num1 + num2).encode(env))

}