Derive Clone for FxHasher
#16
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Noratrieb
approved these changes
Jan 13, 2024
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Other common
Hasherimplementations, includingDefaultHasherandSipHasher, implementClone—butFxHasherdoes not.This is useful when a partially constructed hash can continue to be constructed in different ways. For example, when the hash of a leaf in a tree structure is determined by its path from the root: it can be unnecessarily expensive to independently hash the whole path for each leaf, as one can instead traverse the tree extending the hash of the parent node as one descends.
closes #23