rhai/examples/simple_fn.rs
2021-03-15 11:36:30 +08:00

18 lines
322 B
Rust

use rhai::{Engine, EvalAltResult, INT};
fn add(x: INT, y: INT) -> INT {
x + y
}
fn main() -> Result<(), Box<EvalAltResult>> {
let mut engine = Engine::new();
engine.register_fn("add", add);
let result = engine.eval::<INT>("add(40, 2)")?;
println!("Answer: {}", result); // prints 42
Ok(())
}