Crate weak_table [−] [src]

This library offers a variety of weak hash tables:

For a hash map where the keys are held by weak pointers and compared by key value, see WeakKeyHashMap.
For a hash map where the keys are held by weak pointers and compared by pointer, see PtrWeakKeyHashMap.
For a hash map where the values are held by weak pointers, see WeakValueHashMap.
For a hash map where the keys and values are both held by weak pointers and the keys are compared by value, see WeakWeakHashMap.
For a hash map where the keys and values are both held by weak pointers and the keys are compared by pointer, see PtrWeakWeakHashMap.
For a hash set where the elements are held by weak pointers and compared by element value, see WeakHashSet.
For a hash set where the elements are held by weak pointers and compared by pointer, see PtrWeakHashSet.

Examples

use weak_table::WeakHashSet;
use std::sync::{Arc, Weak};

type Table = WeakHashSet<Weak<String>>;

let mut set = Table::new();
let a = Arc::new("a".to_string());
let b = Arc::new("b".to_string());

set.insert(a.clone());

assert!(   set.contains("a") );
assert!( ! set.contains("b") );

set.insert(b.clone());

assert!(   set.contains("a") );
assert!(   set.contains("b") );

drop(a);

assert!( ! set.contains("a") );
assert!(   set.contains("b") );

Modules

ptr_weak_hash_set	A hash set where the elements are held by weak pointers and compared by pointer.
ptr_weak_key_hash_map	A hash map where the keys are held by weak pointers and compared by pointer.
ptr_weak_weak_hash_map	A hash map where the keys and values are both held by weak pointers, and keys are compared by pointer.
traits	Traits for describing weak and shared pointers and their use as elements and keys.
weak_hash_set	A hash set where the elements are held by weak pointers and compared by value.
weak_key_hash_map	A hash map where the keys are held by weak pointers and compared by key value.
weak_value_hash_map	A hash map where the values are held by weak pointers.
weak_weak_hash_map	A hash map where the keys and values are both held by weak pointers, and keys are compared by value.

Structs

PtrWeakHashSet	A hash set with weak elements, hashed on element pointer.
PtrWeakKeyHashMap	A hash map with weak keys, hashed on key pointer.
PtrWeakWeakHashMap	A hash map with weak keys and weak values, hashed on key pointer.
WeakHashSet	A hash set with weak elements, hashed on element value.
WeakKeyHashMap	A hash map with weak keys, hashed on key value.
WeakValueHashMap	A hash map with weak values.
WeakWeakHashMap	A hash map with weak keys and weak values, hashed on key value.