Enum EvalError 

pub enum EvalError {
    DivideByZero,
    NegativeExponent,
    FailedToTokenizeExpression,
    FailedToExpandExpression(String),
    FailedToAccessArray,
    FailedToUpdateEnvironment,
    ParseError(String),
    TraceError,
}

Represents an error that occurs during evaluation of an arithmetic expression.

Variants

DivideByZero

Division by zero.

NegativeExponent

Negative exponent.

FailedToTokenizeExpression

Failed to tokenize an arithmetic expression.

FailedToExpandExpression(String)

Failed to expand an arithmetic expression.

FailedToAccessArray

Failed to access an element of an array.

FailedToUpdateEnvironment

Failed to update the shell environment in an assignment operator.

ParseError(String)

Failed to parse an arithmetic expression.

TraceError

Failed to trace an arithmetic expression.

Trait Implementations

impl Debug for EvalError

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

Formats the value using the given formatter.

impl Display for EvalError

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

Formats the value using the given formatter.

impl Error for EvalError

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<EvalError> for Error

fn from(source: EvalError) -> Self

Converts to this type from the input type.