Enum EvalError 

pub enum EvalError {
    UndefinedVariable(String),
    InvalidPath(String),
    TypeError {
        expected: &'static str,
        got: String,
    },
    CommandFailed(String),
    NoExecutor,
    ArithmeticError(String),
    RegexError(String),
}

Errors that can occur during expression evaluation.

Variants

UndefinedVariable(String)

Variable not found in scope.

InvalidPath(String)

Path resolution failed (bad field/index access).

TypeError

Type mismatch for operation.

Fields

expected: &'static str

got: String

CommandFailed(String)

Command substitution failed.

NoExecutor

No executor available for command substitution.

ArithmeticError(String)

Division by zero or similar arithmetic error.

RegexError(String)

Invalid regex pattern.

Trait Implementations

impl Clone for EvalError

fn clone(&self) -> EvalError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

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, f: &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 PartialEq for EvalError

fn eq(&self, other: &EvalError) -> 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 StructuralPartialEq for EvalError