Enum Error 

pub enum Error {
    InvalidIri(String),
    EntityKindMismatch {
        iri: String,
        expected: EntityKind,
        found: EntityKind,
    },
    UnknownEntity(EntityId),
    InvalidAxiom(String),
    ParseNotAvailable,
    Serialization(String),
    OntologyNotLoaded,
    NotImplemented,
    Message(String),
}

Errors produced by the core ontology model.

See the error reference for recovery guidance.

Variants

InvalidIri(String)

The IRI string is not a valid absolute IRI (wrong scheme, control chars, too long).

Use http, https, or urn schemes only.

EntityKindMismatch

An entity was registered with a conflicting kind for the same IRI.

Fields

iri: String

Resolved IRI string for the conflicting entity.

expected: EntityKind

Expected entity kind.

found: EntityKind

Found entity kind.

UnknownEntity(EntityId)

Referenced entity id does not exist in the registry.

InvalidAxiom(String)

Axiom validation failed (wrong kinds, unknown IRI in JSON, degenerate operands).

ParseNotAvailable

File parsing is not available until v0.2.

Use Ontology::from_json or the builder API instead.

Serialization(String)

Serialization or deserialization failed (bad JSON, limits, format version).

OntologyNotLoaded

Ontology not loaded (reasoner).

NotImplemented

Reasoning not yet implemented for the selected engine or profile.

Message(String)

Generic configuration or validation error.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Eq for Error

impl Error for Error

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 Error

fn eq(&self, other: &Error) -> 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 Error