2cff3e90bc
This commit moves the `#[do_not_recommend]` attribute to the `#[diagnostic]` namespace. It still requires `#![feature(do_not_recommend)]` to work.
22 lines
460 B
Rust
22 lines
460 B
Rust
//@ revisions: current next
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@[next] compile-flags: -Znext-solver
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#![feature(do_not_recommend)]
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trait Root {}
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trait DontRecommend {}
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trait Other {}
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#[diagnostic::do_not_recommend]
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impl<T> Root for T where T: DontRecommend {}
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impl<T> DontRecommend for T where T: Other {}
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fn needs_root<T: Root>() {}
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fn main() {
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needs_root::<()>();
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//~^ ERROR the trait bound `(): Root` is not satisfied
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}
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