Enum EvalError 

pub enum EvalError {
    NeedsContext,
    EvalFailed {
        var: String,
        source: String,
        message: String,
    },
}

Errors returned by SourceEval::evaluate.

Variants

NeedsContext

The source needs a kernel context that wasn’t provided.

EvalFailed

Evaluation against the supplied context failed. var names the clause; source is the spec-text or description; message carries the underlying reason.

Fields

var: String

The clause’s element name.

source: String

The source text or description.

message: String

The underlying reason.

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.