src/test/ui/where-clauses/where-clauses-method.rs

// run-pass
// Test that a where clause attached to a method allows us to add
// additional constraints to a parameter out of scope.

struct Foo<T> {
    value: T
}

impl<T> Foo<T> {
    fn equals(&self, u: &Foo<T>) -> bool where T : Eq {
        self.value == u.value
    }
}

fn main() {
    let x = Foo { value: 1 };
    let y = Foo { value: 2 };
    println!("{}", x.equals(&x));
    println!("{}", x.equals(&y));
}