File: stack-overflow-trait-infer-98842.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (17 lines) | stat: -rw-r--r-- 624 bytes parent folder | download | duplicates (10)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
// #98842 stack overflow in trait inference
// issue: rust-lang/rust#98842
//@ check-fail
//@ edition:2021
//@ stderr-per-bitwidth
//~^^^^^ ERROR cycle detected when computing layout of `Foo`

// If the inner `Foo` is named through an associated type,
// the "infinite size" error does not occur.
struct Foo(<&'static Foo as ::core::ops::Deref>::Target);
// But Rust will be unable to know whether `Foo` is sized or not,
// and it will infinitely recurse somewhere trying to figure out the
// size of this pointer (is my guess):
const _: *const Foo = 0 as _;
//~^ ERROR evaluation of constant value failed

pub fn main() {}