Enum IndexError 

pub enum IndexError {
    DuplicateId(PointId),
    UnknownId(PointId),
    Empty,
    InvalidConfig(&'static str),
    DimensionMismatch {
        expected: usize,
        actual: usize,
    },
}

Errors returned by index operations.

Variants

DuplicateId(PointId)

Attempted to insert a point with an ID that already exists.

UnknownId(PointId)

Attempted to access a point ID that is not in the index.

Empty

The index is empty and the requested operation is not defined.

InvalidConfig(&'static str)

Configuration parameter out of valid range.

DimensionMismatch

A point’s dimension does not match the index’s dimension.

Only raised by metrics that enforce a fixed dimension at runtime.

Fields

expected: usize

Dimension declared at index construction.

actual: usize

Dimension of the offending point.

Trait Implementations

impl Debug for IndexError

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

Formats the value using the given formatter.

impl Display for IndexError

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

Formats the value using the given formatter.

impl Error for IndexError

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.