Enum oxigraph::sparql::EvaluationError

#[non_exhaustive]pub enum EvaluationError {
    Parsing(ParseError),
    Io(Error),
    Query(QueryError),
    // some variants omitted
}

A SPARQL evaluation error.

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.

Parsing(ParseError)

An error in SPARQL query parsing

Io(Error)

An error returned during store IOs or during results write

Query(QueryError)

An error returned during the query evaluation itself

Trait Implementations

impl Debug for EvaluationError

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

Formats the value using the given formatter.

impl Display for EvaluationError

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

Formats the value using the given formatter.

impl Error for EvaluationError

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

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

fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for EvaluationError

fn from(error: Error) -> Self

Performs the conversion.

impl From<Infallible> for EvaluationError

fn from(error: Infallible) -> Self

Performs the conversion.

impl From<ParseError> for EvaluationError

fn from(error: ParseError) -> Self

Performs the conversion.

impl From<SledUnabortableTransactionError> for EvaluationError

fn from(e: SledUnabortableTransactionError) -> Self

Performs the conversion.