Enum EvaluationError

pub enum EvaluationError<'error> {
    CompilationFailed,
    OptimizationFailed,
    BadArity {
        expected: usize,
        given: usize,
    },
    UnrecognizedExternal(&'error str),
}

An error that may occur during the evaluation of a dice expression. Note that evaluation itself never causes an error, but setup may fail.

Variants

CompilationFailed

The function could not be compiled. Produced only by the simple one-shot evaluator.

OptimizationFailed

The function could not be optimized. Produced only by the simple one-shot evaluator.

BadArity

The number of arguments provided to a function does not match the number of parameters expected.

Fields

expected: usize

The number of parameters expected by the function.

given: usize

The number of arguments provided to the function.

UnrecognizedExternal(&'error str)

An external variable was not recognized.

Trait Implementations

impl<'error> Clone for EvaluationError<'error>

fn clone(&self) -> EvaluationError<'error>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'error> Debug for EvaluationError<'error>

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)>

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<CompilationError> for EvaluationError<'static>

fn from(e: CompilationError) -> Self

Converts to this type from the input type.

impl<'error> PartialEq for EvaluationError<'error>

fn eq(&self, other: &EvaluationError<'error>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'error> Copy for EvaluationError<'error>

impl<'error> Eq for EvaluationError<'error>

impl<'error> StructuralPartialEq for EvaluationError<'error>