src/test/ui/nll/ty-outlives/ty-param-fn.rs


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#![allow(warnings)]

use std::fmt::Debug;

fn no_region<'a, T>(x: Box<T>) -> Box<Debug + 'a>
where
    T: Debug,
{
    x
    //~^ ERROR the parameter type `T` may not live long enough
}

fn correct_region<'a, T>(x: Box<T>) -> Box<Debug + 'a>
where
    T: 'a + Debug,
{
    x
}

fn wrong_region<'a, 'b, T>(x: Box<T>) -> Box<Debug + 'a>
where
    T: 'b + Debug,
{
    x
    //~^ ERROR the parameter type `T` may not live long enough
}

fn outlives_region<'a, 'b, T>(x: Box<T>) -> Box<Debug + 'a>
where
    T: 'b + Debug,
    'b: 'a,
{
    x
}

fn main() {}