| #![feature(const_trait_impl, effects)] |
| |
| // revisions: yy yn ny nn |
| //[yy] check-pass |
| |
| #[cfg_attr(any(yy, yn), const_trait)] |
| trait Foo { |
| fn a(&self); |
| } |
| |
| #[cfg_attr(any(yy, ny), const_trait)] |
| trait Bar: ~const Foo {} |
| //[ny,nn]~^ ERROR: `~const` can only be applied to `#[const_trait]` |
| //[ny,nn]~| ERROR: `~const` can only be applied to `#[const_trait]` |
| //[ny,nn]~| ERROR: `~const` can only be applied to `#[const_trait]` |
| //[yn,nn]~^^^^ ERROR: `~const` is not allowed here |
| |
| const fn foo<T: ~const Bar>(x: &T) { |
| //[yn,nn]~^ ERROR: `~const` can only be applied to `#[const_trait]` |
| x.a(); |
| //[yn]~^ ERROR: mismatched types |
| } |
| |
| fn main() {} |
