rust/tests/ui/regions/regions-infer-paramd-indirect.rs
2023-01-11 09:32:08 +00:00

28 lines
555 B
Rust

// Check that we correctly infer that b and c must be region
// parameterized because they reference a which requires a region.
type A<'a> = &'a isize;
type B<'a> = Box<A<'a>>;
struct C<'a> {
f: Box<B<'a>>
}
trait SetF<'a> {
fn set_f_ok(&mut self, b: Box<B<'a>>);
fn set_f_bad(&mut self, b: Box<B>);
}
impl<'a> SetF<'a> for C<'a> {
fn set_f_ok(&mut self, b: Box<B<'a>>) {
self.f = b;
}
fn set_f_bad(&mut self, b: Box<B>) {
self.f = b;
//~^ ERROR lifetime may not live long enough
}
}
fn main() {}