rhai/benches/iterations.rs

#![feature(test)]

///! Test 1,000 iterations
extern crate test;

use rhai::{Engine, OptimizationLevel, Scope, INT};
use test::Bencher;

#[bench]
fn bench_iterations_1000(bench: &mut Bencher) {
    let script = r#"
            let x = 1_000;
            
            while x > 0 {
                x = x - 1;
            }
        "#;

    let mut engine = Engine::new();
    engine.set_optimization_level(OptimizationLevel::None);

    let ast = engine.compile(script).unwrap();

    bench.iter(|| engine.consume_ast(&ast).unwrap());
}

#[bench]
fn bench_iterations_fibonacci(bench: &mut Bencher) {
    let script = r#"
        fn fibonacci(n) {
            if n < 2 {
                n
            } else {
                fibonacci(n-1) + fibonacci(n-2)
            }
        }
    "#;

    let mut engine = Engine::new();
    engine.set_optimization_level(OptimizationLevel::None);

    let ast = engine.compile(script).unwrap();

    bench.iter(|| {
        engine
            .call_fn::<_, INT>(&mut Scope::new(), &ast, "fibonacci", (20 as INT,))
            .unwrap()
    });
}