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|
pub trait X {
type Y<'a> where Self: 'a;
fn m(&self) -> Self::Y<'_>;
}
impl X for () {
type Y<'a> = &'a ();
fn m(&self) -> Self::Y<'_> {
self
}
}
fn f(x: &impl for<'a> X<Y<'a> = &'a ()>) -> &'static () {
x.m()
//~^ ERROR lifetime may not live long enough
}
fn g<T: for<'a> X<Y<'a> = &'a ()>>(x: &T) -> &'static () {
x.m()
//~^ ERROR lifetime may not live long enough
}
fn h(x: &()) -> &'static () {
x.m()
//~^ ERROR lifetime may not live long enough
}
fn main() {
f(&());
g(&());
h(&());
}
|
