rust/tests/ui/recursion/issue-38591-non-regular-dropck-recursion.rs

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2022-06-28 15:56:32 -05:00
// `S` is infinitely recursing so it's not possible to generate a finite
// drop impl (ignoring polymorphization).
//
// Dropck should therefore detect that this is the case and eagerly error.
struct S<T> {
t: T,
s: Box<S<fn(u: T)>>,
}
2022-06-28 15:56:32 -05:00
fn f(x: S<u32>) {} //~ ERROR overflow while adding drop-check rules for S<u32>
fn main() {
// Force instantiation.
f as fn(_);
}