Enum Error 

#[non_exhaustive]
pub enum Error {
    OutOfBounds {
        pos: usize,
        len: usize,
    },
    MissingParent {
        op: OpId,
        missing: OpId,
    },
    UnknownTarget {
        op: OpId,
        target: OpId,
    },
    ReplicaIdConflict {
        op: OpId,
        replica: ReplicaId,
    },
    ClockOverflow {
        replica: ReplicaId,
    },
}

Errors that can occur in abyo-crdt.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

OutOfBounds

Position is out of bounds for the current visible length.

Fields

pos: usize

The requested position.

len: usize

The current visible length.

MissingParent

A remote insertion referenced a parent that we have not seen.

In a correct event-graph delivery, parents are always delivered before children. This error indicates the caller violated causal delivery (e.g. by applying Ops out of order).

Fields

op: OpId

The op being applied.

missing: OpId

The parent that wasn’t found.

UnknownTarget

A delete op targets an item we have not seen.

Fields

op: OpId

The delete op.

target: OpId

The missing target.

ReplicaIdConflict

A remote op claims to come from this replica’s id. Two replicas must never share an id — if they do, every guarantee is off.

Fields

op: OpId

The offending op.

replica: ReplicaId

The shared replica id.

ClockOverflow

The Lamport clock would overflow u64. Practically never reachable (~10¹⁹ ops per replica), but reported instead of silently wrapping.

Fields

replica: ReplicaId

The replica that overflowed.

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 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 Eq for Error

impl StructuralPartialEq for Error