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coverage: Overhaul validation of the #[coverage(..)] attribute #126682

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coverage: Forbid multiple #[coverage(..)] attributes
It might make sense to allow this in the future, if we add values that aren't
mutually exclusive, but for now having multiple coverage attributes on one item
is useless.
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Zalathar committed Jun 24, 2024
commit b5dfeba0e14c00c5cc91c935bad5633fa2df8461
2 changes: 1 addition & 1 deletion compiler/rustc_feature/src/builtin_attrs.rs
Original file line number Diff line number Diff line change
Expand Up @@ -479,7 +479,7 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
),
gated!(
coverage, Normal, template!(Word, List: "on|off"),
WarnFollowing, EncodeCrossCrate::No,
ErrorPreceding, EncodeCrossCrate::No,
coverage_attribute, experimental!(coverage)
),

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