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fuchsia / third_party / rust / b21b74b5e673b9102502e8f69f378313d901746c
commitb21b74b5e673b9102502e8f69f378313d901746c[log] [tgz]
authorbors <bors@rust-lang.org>Wed May 15 14:52:49 2024 +0000
committerbors <bors@rust-lang.org>Wed May 15 14:52:49 2024 +0000
tree777b3ce01d69091a6bf23092ddcdc23995019e1f
parentade234d5743795423db6cc7cd52541390a088eab [diff]
parent8994840f7e61c1e90db35e7d966d0271880d905c [diff]
Auto merge of #125134 - compiler-errors:negative-traits-are-not-notable, r=fmease

rustdoc: Negative impls are not notable

In #124097, we add `impl !Iterator for [T]` for coherence reasons, and since `Iterator` is a [notable trait](https://github.com/rust-lang/rust/blob/8387315ab3c26a57a1f53a90f188f0bc88514bca/library/core/src/iter/traits/iterator.rs#L40), this means that all `-> &[_]` now are tagged with a `!Iterator` impl as a notable trait.

I "fixed" the failing tests in that PR with 6cbbb8b709a43482847243484ed67131e372ba71, where I just blessed the tests, since I didn't want to mix these changes with that PR; however, don't believe negative impls are notable, and this PR aims to prevent these impls from being mentioned.

In the standard library, we use negative impls purely to guide coherence. They're not really a signal of anything useful to the end-user. If there ever is a case that we want negative impls to be mentioned as notable, this really should be an opt-in feature.
tree: 777b3ce01d69091a6bf23092ddcdc23995019e1f
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README.md

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