use std::ffi::{CString, CStr};
use std::os::raw::{c_char};
pub type JsString = *mut c_char;
pub fn js_string_output<T: Into<Vec<u8>>>(t: T) -> JsString {
let c_string = CString::new(t).unwrap();
c_string.into_raw()
}
pub fn js_string_input(ptr: JsString) -> String {
let s: String;
unsafe {
let cstr = CStr::from_ptr(ptr);
let tmp: &str = cstr.to_str().unwrap();
s = tmp.to_owned();
};
s
}