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|
// Check that we correctly prevent users from making trait objects
// from traits with generic methods, unless `where Self : Sized` is
// present.
//@ revisions: curr dyn_compatible_for_dispatch
#![cfg_attr(dyn_compatible_for_dispatch, feature(dyn_compatible_for_dispatch))]
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 {
//[curr]~^ ERROR E0038
t
//[dyn_compatible_for_dispatch]~^ ERROR E0038
//[curr]~^^ ERROR E0038
}
fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar {
//[curr]~^ ERROR E0038
t as &dyn Bar
//[dyn_compatible_for_dispatch]~^ ERROR E0038
//[curr]~^^ ERROR E0038
//[curr]~| 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() {
}
|
