use ffi::*;

//#[cxx::bridge(namespace = "org::environment")]

use cxx::CxxVector;

#[cxx::bridge]

mod ffi {

extern "Rust" {

type Environment;

fn new_environment() -> Box<Environment>;

fn print_secret_weight(&self)->f64;

fn weighted_sum_vector(&self, vec: &CxxVector<f64>)->f64;

}

}

fn new_environment () -> Box<Environment> {

Box::new(Environment{ weight: 2.0})

}

struct Environment {

weight : f64

}

impl Environment {

fn print_secret_weight(&self) -> f64 {

self.weight

}

fn weighted_sum_vector(&self, my_vec: &CxxVector<f64>)-> f64 {

let my_sum : f64 =my_vec.iter().sum() ;

my_sum*self.weight

}

}