rhai/examples/simple_fn.rs
2016-03-03 11:08:34 -05:00

17 lines
369 B
Rust

extern crate rhai;
use rhai::{Engine, FnRegister};
fn add(x: i32, y: i32) -> i32 {
x + y
}
fn main() {
let mut engine = Engine::new();
&(add as fn(x: i32, y: i32)->i32).register(&mut engine, "add");
if let Ok(result) = engine.eval("add(40, 2)".to_string()).unwrap().downcast::<i32>() {
println!("Answer: {}", *result); // prints 42
}
}