Add a public hasher function for HashSet and HashMap
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@ -642,6 +642,13 @@ impl<K, V, S> HashMap<K, V, S>
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HashMap::with_capacity_and_hasher(capacity, hash_state)
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}
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/// Returns a reference to the map's hasher.
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#[unstable(feature = "hashmap_public_hasher", reason = "don't want to make insta-stable",
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issue = "31262")]
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pub fn hasher(&self) -> &S {
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&self.hash_builder
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}
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/// Returns the number of elements the map can hold without reallocating.
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///
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/// This number is a lower bound; the `HashMap<K, V>` might be able to hold
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@ -193,6 +193,13 @@ impl<T, S> HashSet<T, S>
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}
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}
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/// Returns a reference to the set's hasher.
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#[unstable(feature = "hashmap_public_hasher", reason = "don't want to make insta-stable",
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issue = "31262")]
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pub fn hasher(&self) -> &S {
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self.map.hasher()
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}
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/// Deprecated, renamed to `with_hasher`
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#[inline]
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#[unstable(feature = "hashmap_hasher", reason = "hasher stuff is unclear",
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