Tracking issue for lifetime_underscore compatibility lint
#36892
Labels
A-lint
Area: Lints (warnings about flaws in source code) such as unused_mut.
B-unstable
Blocker: Implemented in the nightly compiler and unstable.
Comments
This was referenced Oct 5, 2016
steveklabnik
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A-lint
brson
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B-unstable
bors
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Jun 1, 2017
Turn sufficiently old compatibility lints into hard errors It's been almost 7 months since #36894 was merged, so it's time to take the next step. [breaking-change], needs crater run. PRs/issues submitted to affected crates: https://github.com/alexcrichton/ctest/pull/17 Sean1708/rusty-cheddar#55 m-r-r/helianto#3 azdle/virgil#1 rust-locale/rust-locale#24 mneumann/acyclic-network-rs#1 reem/rust-typemap#38 cc https://internals.rust-lang.org/t/moving-forward-on-forward-compatibility-lints/4204 cc #34537 #36887 Closes #36886 Closes #36888 Closes #36890 Closes #36891 Closes #36892 r? @nikomatsakis
frewsxcv
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Jun 1, 2017
Turn sufficiently old compatibility lints into hard errors It's been almost 7 months since rust-lang#36894 was merged, so it's time to take the next step. [breaking-change], needs crater run. PRs/issues submitted to affected crates: https://github.com/alexcrichton/ctest/pull/17 Sean1708/rusty-cheddar#55 m-r-r/helianto#3 azdle/virgil#1 rust-locale/rust-locale#24 mneumann/acyclic-network-rs#1 reem/rust-typemap#38 cc https://internals.rust-lang.org/t/moving-forward-on-forward-compatibility-lints/4204 cc rust-lang#34537 rust-lang#36887 Closes rust-lang#36886 Closes rust-lang#36888 Closes rust-lang#36890 Closes rust-lang#36891 Closes rust-lang#36892 r? @nikomatsakis
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What is this lint about
Lifetime name
'_is reserved for possible future use as a lifetime placeholder, similarly to how_is used as a placeholder in types or patterns (see, for example, rust-lang/rfcs#1177).Earlier versions of the compiler accepted
'_as a normal lifetime or label name, #33794 fixed this oversight.How to fix this warning/error
Rename the lifetime or label named
'_into something else, like'aor'z.Current status
lifetime_underscorelint as warn-by-defaultlifetime_underscorelint deny-by-defaultlifetime_underscorelint a hard errorThe text was updated successfully, but these errors were encountered: