File: static.rs

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//@ run-pass

pub trait MyNum {
    fn from_int(_: isize) -> Self;
}

pub trait NumExt: MyNum { }

struct S { v: isize }

impl MyNum for S {
    fn from_int(i: isize) -> S {
        S {
            v: i
        }
    }
}

impl NumExt for S { }

fn greater_than_one<T:NumExt>() -> T { MyNum::from_int(1) }

pub fn main() {
    let v: S = greater_than_one();
    assert_eq!(v.v, 1);
}