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use core::borrow::Borrow; use core::hash::{Hash, BuildHasher}; #[cfg(feature = "use_std")] use std::collections::hash_map::HashMap; #[cfg(not(feature = "use_std"))] use hashmap_core::HashMap; use super::super::*; impl<K, V, S> Collection for HashMap<K, V, S> where K: Eq + Hash, S: BuildHasher, { #[inline(always)] fn len(&self) -> usize { HashMap::<K, V, S>::len(self) } } impl<K, V, S> CollectionMut for HashMap<K, V, S> where K: Eq + Hash, S: BuildHasher, { #[inline(always)] fn clear(&mut self) { HashMap::<K, V, S>::drain(self); } } impl<K, V, S> Create<(K, V)> for HashMap<K, V, S> where K: Eq + Hash, S: Default + BuildHasher, { #[inline(always)] fn create() -> Self { HashMap::<K, V, S>::default() } #[inline(always)] fn create_with_capacity(_: usize) -> Self { HashMap::<K, V, S>::default() } #[inline(always)] fn add_element(mut self, (key, value): (K, V)) -> Self { HashMap::<K, V, S>::insert(&mut self, key, value); self } } impl<'a, K, V, S> Insert<K, V> for HashMap<K, V, S> where K: Eq + Hash, S: BuildHasher { type Output = Option<V>; #[inline] fn insert(&mut self, k: K, v: V) -> Self::Output { HashMap::<K, V, S>::insert(self, k, v) } } impl<'a, K, Q: ?Sized, V, S> Remove<&'a Q> for HashMap<K, V, S> where K: Eq + Hash + Borrow<Q>, Q: Eq + Hash, S: BuildHasher { type Output = Option<V>; #[inline] fn remove(&mut self, q: &Q) -> Self::Output { HashMap::<K, V, S>::remove(self, q) } } impl<'a, K, Q: ?Sized, V, S> Get<&'a Q> for HashMap<K, V, S> where K: Eq + Hash + Borrow<Q>, Q: Eq + Hash, S: BuildHasher, { type Output = V; #[inline(always)] fn get(&self, q: &Q) -> Option<&Self::Output> { HashMap::<K, V, S>::get(self, q) } } impl<'a, K, Q: ?Sized, V, S> GetMut<&'a Q> for HashMap<K, V, S> where K: Eq + Hash + Borrow<Q>, Q: Eq + Hash, S: BuildHasher, { #[inline(always)] fn get_mut(&mut self, q: &Q) -> Option<&mut Self::Output> { HashMap::<K, V, S>::get_mut(self, q) } }