Enum CacheError 

#[non_exhaustive]
pub enum CacheError {
    CapacityExceeded,
    DuplicateSequenceNumber,
    ZeroDepth,
}

Error variants for cache operations.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

CapacityExceeded

The KeepAll cache has reached its capacity.

DuplicateSequenceNumber

The same SN was already inserted.

ZeroDepth

KeepLast with depth == 0 — every insert would be an immediate drop. This case is rejected at insert instead of silently accepted.

Trait Implementations

impl Clone for CacheError

fn clone(&self) -> CacheError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for CacheError

impl Debug for CacheError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for CacheError

impl PartialEq for CacheError

fn eq(&self, other: &CacheError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CacheError