Struct regex_automata::meta::error::RetryFailError

pub(crate) struct RetryFailError {
    offset: usize,
}

An error that occurs when a regex engine “gives up” for some reason before finishing a search. Usually this occurs because of heuristic Unicode word boundary support or because of ineffective cache usage in the lazy DFA.

When this error occurs, callers should retry the regex search with a different regex engine.

Note that this has convenient From impls that will automatically convert a MatchError into this error. This works because the meta regex engine internals guarantee that errors like HaystackTooLong and UnsupportedAnchored will never occur. The only errors left are Quit and GaveUp, which both correspond to this “failure” error.

Fields

offset: usize

Implementations

impl RetryFailError

pub(crate) fn from_offset(offset: usize) -> RetryFailError

Trait Implementations

impl Debug for RetryFailError

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

Formats the value using the given formatter.

impl Display for RetryFailError

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

Formats the value using the given formatter.

impl Error for RetryFailError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports.

impl From<MatchError> for RetryFailError

fn from(merr: MatchError) -> RetryFailError

Converts to this type from the input type.

impl From<RetryFailError> for RetryError

fn from(err: RetryFailError) -> RetryError

Converts to this type from the input type.