33 lines
504 B
Rust
33 lines
504 B
Rust
// build-fail
|
|
// compile-flags: -Copt-level=0
|
|
// normalize-stderr-test: ".nll/" -> "/"
|
|
|
|
fn main() {
|
|
rec(Empty);
|
|
}
|
|
|
|
struct Empty;
|
|
|
|
impl Iterator for Empty {
|
|
type Item = ();
|
|
fn next<'a>(&'a mut self) -> core::option::Option<()> {
|
|
None
|
|
}
|
|
}
|
|
|
|
fn identity<T>(x: T) -> T {
|
|
x
|
|
}
|
|
|
|
fn rec<T>(mut it: T)
|
|
where
|
|
T: Iterator,
|
|
{
|
|
if () == () {
|
|
T::count(it);
|
|
} else {
|
|
rec(identity(&mut it))
|
|
//~^ ERROR reached the recursion limit while instantiating
|
|
}
|
|
}
|