A pending map operation.
Replace the set of entries for this key with this value.
Add this value to the set of entries for this key.
Remove this value from the set of entries for this key.
Remove the value set for this key.
Remove all values in the value set for this key.
Remove all values for all keys.
Note that this will iterate once over all the keys internally.
Retains all values matching the given predicate.
Values to their minimum necessary size, freeing memory
and potentially improving cache locality.
If no key is given, all
Values will shrink to fit.
Reserves capacity for some number of additional elements in
for the given key. If the given key does not exist, allocate an empty
Values with the given capacity.
This can improve performance by pre-allocating space for large bags of values.
impl<K, V> StructuralEq for Operation<K, V>[src]
impl<K, V> StructuralPartialEq for Operation<K, V>[src]
impl<K, V> !RefUnwindSafe for Operation<K, V>
impl<K, V> !UnwindSafe for Operation<K, V>
type Error = Infallible
The type returned in the event of a conversion error.