auto-delegate 0.1.3

Auto delegate allows you that automatic impl of traits and delegate their handling to child members.
Documentation 
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use criterion::{criterion_group, criterion_main, Criterion};

use auto_delegate_impl::Delegate;

use crate::utils::{Calc, CalcAdd};

mod utils;

#[derive(Default)]
struct HandWritten {
    child: CalcAdd,
}

impl Calc for HandWritten {
    fn calc(&self, x1: usize, x2: usize) -> usize {
        self.child.calc(x1, x2)
    }
}

#[derive(Delegate, Default)]
struct Generated {
    #[to(Calc)]
    child: CalcAdd,
}

fn generate_vs_handwritten(c: &mut Criterion) {
    let mut g = c.benchmark_group("generate_vs_handwritten");

    g.bench_function("generate", |b| {
        b.iter(|| {
            let calc = Generated::default();
            for _ in 0..10 {
                criterion::black_box(calc.calc(3, 2));
            }
        })
    });

    g.bench_function("handwritten", |b| {
        b.iter(|| {
            let calc = HandWritten::default();
            for _ in 0..10 {
                criterion::black_box(calc.calc(3, 2));
            }
        })
    });
}

criterion_group!(benches_struct, generate_vs_handwritten);
criterion_main!(benches_struct);