Struct `CacheError`

struct CacheError(_)

An error that occurs when cache usage has become inefficient.

One of the weaknesses of a lazy DFA is that it may need to clear its cache repeatedly if it's not big enough. If this happens too much, then it can slow searching down significantly. A mitigation to this is to use heuristics to detect whether the cache is being used efficiently or not. If not, then a lazy DFA can return a CacheError.

The default configuration of a lazy DFA in this crate is set such that a CacheError will never occur. Instead, callers must opt into this behavior with settings like dfa::Config::minimum_cache_clear_count and dfa::Config::minimum_bytes_per_state.

When the std feature is enabled, this implements the std::error::Error trait.

Implementations

`impl Clone for CacheError`

fn clone(self: &Self) -> CacheError

`impl Debug for CacheError`

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

`impl Display for CacheError`

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

`impl Error for CacheError`

`impl Freeze for CacheError`

`impl RefUnwindSafe for CacheError`

`impl Send for CacheError`

`impl Sync for CacheError`

`impl Unpin for CacheError`

`impl UnsafeUnpin for CacheError`

`impl UnwindSafe for CacheError`

`impl<T> Any for CacheError`

fn type_id(self: &Self) -> TypeId

`impl<T> Borrow for CacheError`

fn borrow(self: &Self) -> &T

`impl<T> BorrowMut for CacheError`

fn borrow_mut(self: &mut Self) -> &mut T

`impl<T> CloneToUninit for CacheError`

unsafe fn clone_to_uninit(self: &Self, dest: *mut u8)

`impl<T> From for CacheError`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> ToOwned for CacheError`

fn to_owned(self: &Self) -> T
fn clone_into(self: &Self, target: &mut T)

`impl<T> ToString for CacheError`

fn to_string(self: &Self) -> String

`impl<T, U> Into for CacheError`

fn into(self: Self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

`impl<T, U> TryFrom for CacheError`

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

`impl<T, U> TryInto for CacheError`

fn try_into(self: Self) -> Result<U, <U as TryFrom<T>>::Error>