From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- third_party/rust/precomputed-hash/src/lib.rs | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 third_party/rust/precomputed-hash/src/lib.rs (limited to 'third_party/rust/precomputed-hash/src') diff --git a/third_party/rust/precomputed-hash/src/lib.rs b/third_party/rust/precomputed-hash/src/lib.rs new file mode 100644 index 0000000000..9cdb45d5b2 --- /dev/null +++ b/third_party/rust/precomputed-hash/src/lib.rs @@ -0,0 +1,22 @@ +//! A base trait to expose a precomputed hash for a type. + +/// A trait to expose a precomputed hash for a type. +pub trait PrecomputedHash { + // TODO(emilio): Perhaps an associated type would be on point here. + + /// Return the precomputed hash for this item. + fn precomputed_hash(&self) -> u32; +} + +// These are equivalent to the `std::Hash` impls. +impl<'a, T: PrecomputedHash> PrecomputedHash for &'a T { + fn precomputed_hash(&self) -> u32 { + (**self).precomputed_hash() + } +} + +impl<'a, T: PrecomputedHash> PrecomputedHash for &'a mut T { + fn precomputed_hash(&self) -> u32 { + (**self).precomputed_hash() + } +} -- cgit v1.2.3