#![feature(associated_consts)]

use std::marker::PhantomData;

trait Offset {
    const VALUE: usize;
}

struct Weed<T> {
    _offset: PhantomData<T>
}

impl<T> Weed<T> where T: Offset {
    pub fn speak() {
        println!("{}", T::VALUE);
    }
}

trait OffsetImpl {
    const VALUE: i32 = 32;
}

fn main() {
    Weed::<OffsetImpl>::speak();
}