33 lines
711 B
Rust
33 lines
711 B
Rust
// Test that we don't hit the recursion limit for short cycles involving lifetimes.
|
|
|
|
// Shouldn't hit this, we should realize that we're in a cycle sooner.
|
|
#![recursion_limit="20"]
|
|
|
|
trait NotAuto {}
|
|
trait Y {
|
|
type P;
|
|
}
|
|
|
|
impl<'a> Y for C<'a> {
|
|
type P = Box<X<C<'a>>>;
|
|
}
|
|
|
|
struct C<'a>(&'a ());
|
|
struct X<T: Y>(T::P);
|
|
|
|
impl<T: NotAuto> NotAuto for Box<T> {} //~ NOTE: required
|
|
impl<T: Y> NotAuto for X<T> where T::P: NotAuto {}
|
|
impl<'a> NotAuto for C<'a> {}
|
|
|
|
fn is_send<S: NotAuto>() {}
|
|
//~^ NOTE: required
|
|
//~| NOTE: required
|
|
|
|
fn main() {
|
|
// Should only be a few notes.
|
|
is_send::<X<C<'static>>>();
|
|
//~^ ERROR overflow evaluating
|
|
//~| 3 redundant requirements hidden
|
|
//~| required for
|
|
}
|