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Deny impls for BikeshedGuaranteedNoDrop #138477

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Merged
merged 1 commit into from
Mar 14, 2025
Merged

Deny impls for BikeshedGuaranteedNoDrop #138477

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6 changes: 5 additions & 1 deletion library/core/src/marker.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -465,9 +465,13 @@ impl<T: ?Sized> Copy for &T {}
/// Notably, this doesn't include all trivially-destructible types for semver
/// reasons.
///
/// Bikeshed name for now.
/// Bikeshed name for now. This trait does not do anything other than reflect the
/// set of types that are allowed within unions for field validity.
#[unstable(feature = "bikeshed_guaranteed_no_drop", issue = "none")]
#[lang = "bikeshed_guaranteed_no_drop"]
#[rustc_deny_explicit_impl]
#[rustc_do_not_implement_via_object]
#[doc(hidden)]
pub trait BikeshedGuaranteedNoDrop {}

/// Types for which it is safe to share references between threads.
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