Enum KbError 

pub enum KbError {
    Parse(Error),
    Invalid(String),
}

Why a knowledge base failed to load.

The two cases are different kinds of wrong and a caller may want to treat them differently: Parse means the JSON does not describe a knowledge base at all, while Invalid means it deserialized fine but breaks an invariant the analysis relies on. Neither is reachable from load with the embedded bases — those are validated by the test suite — but both are reachable once you deserialize a KnowledgeBase of your own and call KnowledgeBase::validate.

Variants

Parse(Error)

The JSON could not be deserialized into a KnowledgeBase.

Invalid(String)

The knowledge base deserialized but violates a cross-field invariant. Carries the offending entry’s id and what it broke.

Trait Implementations

impl Debug for KbError

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

Formats the value using the given formatter.

impl Display for KbError

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

Formats the value using the given formatter.

impl Error for KbError

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<Error> for KbError

fn from(e: Error) -> Self

Converts to this type from the input type.