Enum SubstitutionError

pub enum SubstitutionError {
    MissingGroup(usize),
    UnexpectedWildcard,
}

A pattern substitution error

Variants

MissingGroup(usize)

No value supplied for capture group

UnexpectedWildcard

Wildcard char *?[..] is outside of the capture group

Trait Implementations

impl Debug for SubstitutionError

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

Formats the value using the given formatter.

impl Display for SubstitutionError

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

Formats the value using the given formatter.

impl Error for SubstitutionError

fn description(&self) -> &str

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

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

Returns the lower-level source of this error, if any.

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.