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// Issue 22443: Reject code using non-regular types that would
// otherwise cause dropck to loop infinitely.
//
// This version is just checking that we still sanely handle a trivial
// wrapper around the non-regular type. (It also demonstrates how the
// error messages will report different types depending on which type
// dropck is analyzing.)
use std::marker::PhantomData;
struct Digit<T> {
elem: T
}
struct Node<T:'static> { m: PhantomData<&'static T> }
enum FingerTree<T:'static> {
Single(T),
// According to the bug report, Digit before Box would infinite loop.
Deep(
Digit<T>,
Box<FingerTree<Node<T>>>,
)
}
enum Wrapper<T:'static> {
Simple,
Other(FingerTree<T>),
}
fn main() {
let w = //~ ERROR overflow while adding drop-check rules for `Option
Some(Wrapper::Simple::<u32>);
//~^ ERROR overflow while adding drop-check rules for `Wrapper
}
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