Enum ExprError 

pub enum ExprError {
    Syntax(String),
    UnknownStep(String),
    UnknownPath(String),
    NotNumeric,
    NoConfidence(String),
}

Variants

Syntax(String)

UnknownStep(String)

UnknownPath(String)

NotNumeric

NoConfidence(String)

Step exists but produced no confidence score (e.g. a handler_value handler). Using such a step as input to route_on_confidence is a pipeline authoring error.

Trait Implementations

impl Debug for ExprError

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

Formats the value using the given formatter.

impl Display for ExprError

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

Formats the value using the given formatter.

impl Error for ExprError

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.