Struct ccache::hashmap::user::ZeroMeta

pub struct ZeroMeta {}

The simplest of implementation for metadata: No metadata, don’t take up space and don’t do anything

Trait Implementations

impl Default for ZeroMeta

fn default() -> ZeroMeta

Returns the “default value” for a type.

impl<V> Meta<V> for ZeroMeta

fn new() -> Self

create a new metadata struct with default values used if you don’t want to specify one on insert(…)

fn on_insert(
    &mut self,
    _current_val: &mut V,
    _old_entry: Option<(&Self, &mut V)>
)

run every time the key is added or re-added as extra parameters you have:

fn on_get(&mut self, _val: &mut V)

run every time the key is requested