1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
|
// Check that we correctly prevent users from making trait objects
// from traits with generic methods, unless `where Self : Sized` is
// present.
trait Bar {
fn bar<T>(&self, t: T);
}
trait Quux {
fn bar<T>(&self, t: T)
where Self : Sized;
}
fn make_bar<T:Bar>(t: &T) -> &dyn Bar {
//~^ ERROR E0038
t
//~^ ERROR E0038
}
fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar {
//~^ ERROR E0038
t as &dyn Bar
//~^ ERROR E0038
//~| ERROR E0038
}
fn make_quux<T:Quux>(t: &T) -> &dyn Quux {
t
}
fn make_quux_explicit<T:Quux>(t: &T) -> &dyn Quux {
t as &dyn Quux
}
fn main() {
}
|