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// 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() {}
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