Std.LruCache.peek
1 declaration
fn
peek: &Std.LruCache.LruCache[K, V] -> K -> Option[V]This is a callable function.
What it does
The value stored under a key, without marking it as used.
For looking at a cache rather than using it. A program that reads through
peek alone has a cache that evicts by write order, which is not what it
asked for — so this exists for reports and assertions, not for the hot path.
Read the signature
- The text after the name is the type checked by Pudu.
- Read arrows from left to right: inputs come first, and the final type is returned.
- & borrows a value for this call instead of moving or copying it.
- Names inside [ ] are type arguments, such as the item type held by a collection.
- Option holds Some(value) or None when no value is available.
