| #![crate_type = "lib"] |
| #![feature(staged_api)] |
| #![stable(feature = "stability_attribute_implies", since = "1.0.0")] |
| #![rustc_const_stable(feature = "stability_attribute_implies", since = "1.0.0")] |
| |
| // Tests that `implied_by = "const_bar"` results in an error being emitted if `const_bar` does not |
| // exist. |
| |
| #[stable(feature = "stability_attribute_implies", since = "1.0.0")] |
| #[rustc_const_unstable(feature = "const_foobar", issue = "1", implied_by = "const_bar")] |
| //~^ ERROR feature `const_bar` implying `const_foobar` does not exist |
| pub const fn foobar() -> u32 { |
| 0 |
| } |
| |
| const VAR: u32 = foobar(); |
| //~^ ERROR: `foobar` is not yet stable as a const fn |
