| // This tests the interaction of feature staging and supertrait item shadowing. |
| // When a feature is *off*, then we should not consider unstable methods for probing. |
| // When a feature is *on*, then we follow the normal supertrait item shadowing rules: |
| // - When supertrait item shadowing is disabled, this is a clash. |
| // - When supertrait item shadowing is enabled, we pick subtraits. |
| |
| //@ aux-build: shadowed_stability.rs |
| //@ revisions: off_normal on_normal off_shadowing on_shadowing |
| //@[off_normal] run-pass |
| //@[on_normal] check-fail |
| //@[off_shadowing] run-pass |
| //@[on_shadowing] run-pass |
| //@ check-run-results |
| |
| #![allow(dead_code, unused_features, unused_imports)] |
| #![cfg_attr(on_shadowing, feature(downstream))] |
| #![cfg_attr(on_normal, feature(downstream))] |
| #![cfg_attr(off_shadowing, feature(supertrait_item_shadowing))] |
| #![cfg_attr(on_shadowing, feature(supertrait_item_shadowing))] |
| |
| extern crate shadowed_stability; |
| use shadowed_stability::*; |
| |
| fn main() { |
| #[cfg(any(off_normal, off_shadowing))] |
| assert_eq!(().hello(), "A"); |
| //[off_normal,off_shadowing]~^ WARN a method with this name may be added |
| //[off_normal,off_shadowing]~| WARN once this associated item is added |
| #[cfg(any(on_normal, on_shadowing))] |
| assert_eq!(().hello(), "B"); |
| //[on_normal]~^ ERROR multiple applicable items in scope |
| } |
