rhai/examples/arrays_and_structs.rs
2022-02-10 12:54:30 +08:00

66 lines
1.3 KiB
Rust

use rhai::{Engine, EvalAltResult};
#[cfg(not(feature = "no_index"))]
#[cfg(not(feature = "no_object"))]
fn main() -> Result<(), Box<EvalAltResult>> {
#[derive(Debug, Clone)]
struct TestStruct {
x: i64,
}
impl TestStruct {
pub fn new() -> Self {
Self { x: 1 }
}
pub fn update(&mut self) {
self.x += 1000;
}
}
let mut engine = Engine::new();
engine
.register_type_with_name::<TestStruct>("TestStruct")
.register_fn("new_ts", TestStruct::new)
.register_fn("update", TestStruct::update);
#[cfg(feature = "metadata")]
{
println!("Functions registered:");
engine
.gen_fn_signatures(false)
.into_iter()
.for_each(|func| println!("{}", func));
println!();
}
let result = engine.eval::<TestStruct>(
"
let x = new_ts();
x.update();
x
",
)?;
println!("{:?}", result);
let result = engine.eval::<TestStruct>(
"
let x = [ new_ts() ];
x[0].update();
x[0]
",
)?;
println!("{:?}", result);
Ok(())
}
#[cfg(any(feature = "no_index", feature = "no_object"))]
fn main() {
panic!("This example does not run under 'no_index' or 'no_object'.")
}