Enum ChronicleError 

pub enum ChronicleError {
    EntityNotFound(String),
    DuplicateId(String),
    DanglingReference {
        source_id: String,
        target_id: String,
    },
    TemporalViolation {
        description: String,
    },
    StateViolation {
        description: String,
    },
    Parse(SpannedError),
    Io(Error),
}

Errors that can occur when loading, validating, or querying a Chronicle graph.

Variants

EntityNotFound(String)

A lookup by entity ID found no matching node in the graph.

DuplicateId(String)

Two or more entities share the same ID, which must be unique.

DanglingReference

An entity references another entity ID that does not exist in the graph.

Fields

source_id: String

The ID of the entity that contains the broken reference.

target_id: String

The ID that was referenced but not found.

TemporalViolation

A temporal constraint (Allen’s Interval Algebra) is violated between events.

Fields

description: String

Human-readable explanation of the temporal inconsistency.

StateViolation

An event conflicts with the current state of a participant or location (e.g. a dead actor participating, or a destroyed place hosting an event).

Fields

description: String

Human-readable explanation of the state conflict.

Parse(SpannedError)

A RON file could not be parsed.

Io(Error)

A filesystem I/O operation failed while reading world data.

Trait Implementations

impl Debug for ChronicleError

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

Formats the value using the given formatter.

impl Display for ChronicleError

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

Formats the value using the given formatter.

impl Error for ChronicleError

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 ChronicleError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<SpannedError> for ChronicleError

fn from(source: SpannedError) -> Self

Converts to this type from the input type.