Enum MatchArgError 

pub enum MatchArgError {
    InvalidType(SEXPTYPE),
    InvalidLength(usize),
    IsNa,
    NoMatch {
        input: String,
        choices: &'static [&'static str],
    },
}

Error type for MatchArg conversion failures.

Variants

InvalidType(SEXPTYPE)

The SEXP was not a character or factor type.

InvalidLength(usize)

The input had length != 1.

IsNa

The input was NA.

NoMatch

No choice matched the input.

Fields

input: String

The input string that didn’t match.

choices: &'static [&'static str]

The valid choices.

Trait Implementations

impl Clone for MatchArgError

fn clone(&self) -> MatchArgError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MatchArgError

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

Formats the value using the given formatter.

impl Display for MatchArgError

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

Formats the value using the given formatter.

impl Error for MatchArgError

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

Returns 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<MatchArgError> for SexpError

fn from(e: MatchArgError) -> Self

Converts to this type from the input type.