38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
// Issue 22443: Reject code using non-regular types that would
|
|
// otherwise cause dropck to loop infinitely.
|
|
|
|
use std::marker::PhantomData;
|
|
|
|
struct Digit<T> {
|
|
elem: T
|
|
}
|
|
|
|
struct Node<T:'static> { m: PhantomData<&'static T> }
|
|
|
|
|
|
enum FingerTree<T:'static> {
|
|
Single(T),
|
|
// Bug report said Digit after Box would stack overflow (versus
|
|
// Digit before Box; see dropck_no_diverge_on_nonregular_2).
|
|
Deep(
|
|
Box<FingerTree<Node<T>>>,
|
|
Digit<T>,
|
|
)
|
|
}
|
|
|
|
fn main() {
|
|
let ft = //~ ERROR overflow while adding drop-check rules for FingerTree
|
|
FingerTree::Single(1);
|
|
//~^ ERROR overflow while adding drop-check rules for FingerTree
|
|
}
|