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jackh726
33 lines
1.3 KiB
Rust
33 lines
1.3 KiB
Rust
// This tests the interaction of feature staging and supertrait item shadowing.
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// When a feature is *off*, then we should not consider unstable methods for probing.
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// When a feature is *on*, then we follow the normal supertrait item shadowing rules:
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// - When supertrait item shadowing is disabled, this is a clash.
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// - When supertrait item shadowing is enabled, we pick subtraits.
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//@ aux-build: shadowed_stability.rs
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//@ revisions: off_normal on_normal off_shadowing on_shadowing
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//@[off_normal] run-pass
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//@[on_normal] check-fail
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//@[off_shadowing] run-pass
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//@[on_shadowing] run-pass
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//@ check-run-results
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#![allow(dead_code, unused_features, unused_imports)]
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#![cfg_attr(on_shadowing, feature(downstream))]
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#![cfg_attr(on_normal, feature(downstream))]
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#![cfg_attr(off_shadowing, feature(supertrait_item_shadowing))]
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#![cfg_attr(on_shadowing, feature(supertrait_item_shadowing))]
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extern crate shadowed_stability;
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use shadowed_stability::*;
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fn main() {
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#[cfg(any(off_normal, off_shadowing))]
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assert_eq!(().hello(), "A");
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//[off_normal,off_shadowing]~^ WARN a method with this name may be added
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//[off_normal,off_shadowing]~| WARN once this associated item is added
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#[cfg(any(on_normal, on_shadowing))]
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assert_eq!(().hello(), "B");
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//[on_normal]~^ ERROR multiple applicable items in scope
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}
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