File: multiple-def-uses-in-one-fn-infer.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (15 lines) | stat: -rw-r--r-- 435 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
// https://github.com/rust-lang/rust/issues/73481
// This test used to cause unsoundness, since one of the two possible
// resolutions was chosen at random instead of erroring due to conflicts.

#![feature(type_alias_impl_trait)]

type Y<A, B> = impl std::fmt::Debug;

#[define_opaque(Y)]
fn g<A, B>() -> (Y<A, B>, Y<B, A>) {
    //~^ ERROR concrete type differs from previous defining opaque type use
    (42_i64, 60)
}

fn main() {}