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macro_rules! impl_hash_set { ($HashSet:ident) => { use core::borrow::Borrow; use core::hash::{BuildHasher, Hash}; use super::super::super::*; impl<V, S> Collection for $HashSet<V, S> where V: Eq + Hash, S: BuildHasher, { #[inline(always)] fn len(&self) -> usize { $HashSet::<V, S>::len(self) } } impl<V, S> CollectionMut for $HashSet<V, S> where V: Eq + Hash, S: BuildHasher, { #[inline(always)] fn clear(&mut self) { $HashSet::<V, S>::drain(self); } } impl<V, S> Create<V> for $HashSet<V, S> where V: Eq + Hash, S: Default + BuildHasher, { #[inline(always)] fn create() -> Self { $HashSet::<V, S>::default() } #[inline(always)] fn create_with_capacity(_: usize) -> Self { $HashSet::<V, S>::default() } #[inline(always)] fn add_element(mut self, value: V) -> Self { $HashSet::<V, S>::insert(&mut self, value); self } } impl<'a, Q, V, S> Get<&'a Q> for $HashSet<V, S> where Q: Eq + Hash + ?Sized, V: Eq + Hash + Borrow<Q>, S: BuildHasher, { type Output = V; #[inline(always)] fn get(&self, q: &Q) -> Option<&Self::Output> { $HashSet::get(self, q) } } impl<V, S> Add<V> for $HashSet<V, S> where V: Eq + Hash, S: BuildHasher, { type Output = bool; #[inline(always)] fn add(&mut self, v: V) -> Self::Output { $HashSet::<V, S>::insert(self, v) } } }; } #[cfg(feature = "hashmap_core")] mod __impl_hash_set { use hashmap_core::HashSet; impl_hash_set!(HashSet); } #[cfg(feature = "std")] mod __impl_hash_set { use std::collections::hash_set::HashSet; impl_hash_set!(HashSet); }