Enum LanguageError 

pub enum LanguageError {
    ParseError {
        expr: String,
        reason: String,
    },
    EvalError(String),
    UnknownVariable(String),
    NotFound(String),
    NotSupported {
        feature: String,
        language: String,
    },
}

Variants

ParseError

Fields

expr: String

reason: String

EvalError(String)

UnknownVariable(String)

NotFound(String)

NotSupported

Fields

feature: String

language: String

Implementations

impl LanguageError

pub fn eval_error(expr: &str, message: impl Display) -> Self

Create an EvalError that includes the expression being evaluated.

This preserves the expression context in the error message for easier debugging.

Trait Implementations

impl Debug for LanguageError

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

Formats the value using the given formatter.

impl Display for LanguageError

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

Formats the value using the given formatter.

impl Error for LanguageError

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.