Module hash_map

Expand description

A hash map without Drop that stores data in arena allocator.

By default uses FxHasher to hash keys. The hasher can be customized via the S type parameter (e.g. IdentBuildHasher for Ident keys).

See HashMap for more details.

Structs§

Drain: A draining iterator over the entries of a HashMap in arbitrary order. The iterator element type is (K, V).
ExtractIf: A draining iterator over entries of a HashMap which don’t satisfy the predicate f(&k, &mut v) in arbitrary order. The iterator element type is (K, V).
HashMap: A hash map without Drop that stores data in arena allocator.
IntoIter: An owning iterator over the entries of a HashMap in arbitrary order. The iterator element type is (K, V).
IntoKeys: An owning iterator over the keys of a HashMap in arbitrary order. The iterator element type is K.
IntoValues: An owning iterator over the values of a HashMap in arbitrary order. The iterator element type is V.
Iter: An iterator over the entries of a HashMap in arbitrary order. The iterator element type is (&'a K, &'a V).
IterMut: A mutable iterator over the entries of a HashMap in arbitrary order. The iterator element type is (&'a K, &'a mut V).
Keys: An iterator over the keys of a HashMap in arbitrary order. The iterator element type is &'a K.
OccupiedError: The error returned by try_insert when the key already exists.
Values: An iterator over the values of a HashMap in arbitrary order. The iterator element type is &'a V.
ValuesMut: A mutable iterator over the values of a HashMap in arbitrary order. The iterator element type is &'a mut V.

Entry: A view into a single entry in a map, which may either be vacant or occupied.
EntryRef: A view into a single entry in a map, which may either be vacant or occupied, with any borrowed form of the map’s key type.
TryReserveError: The error type for try_reserve methods.