File: feature-gate.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg2-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, trixie
  • size: 893,176 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (22 lines) | stat: -rw-r--r-- 741 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
//@ revisions: stock gated
// gate-test-const_trait_impl

#![cfg_attr(gated, feature(const_trait_impl))]
#![feature(rustc_attrs)]

struct S;
#[const_trait] //[stock]~ ERROR `const_trait` is a temporary placeholder
trait T {}
impl const T for S {}
//[stock]~^ ERROR const trait impls are experimental

const fn f<A: ~const T>() {} //[stock]~ ERROR const trait impls are experimental
fn g<A: const T>() {} //[stock]~ ERROR const trait impls are experimental

macro_rules! discard { ($ty:ty) => {} }

discard! { impl ~const T } //[stock]~ ERROR const trait impls are experimental
discard! { impl const T } //[stock]~ ERROR const trait impls are experimental

#[rustc_error]
fn main() {} //[gated]~ ERROR fatal error triggered by #[rustc_error]