Enum FoldError 

pub enum FoldError {
    InvalidGeneration {
        node_id: NodeId,
    },
    RestoreOverLiveState {
        current_len: usize,
    },
}

Errors the runtime returns from the apply / snapshot path. Dispatch-layer errors (bad signature, unknown kind) flow through super::WireError / super::DispatchError instead.

Variants

InvalidGeneration

Apply rejected because the announcement’s generation is 0, which the wire format reserves as the “uninitialized” sentinel. A legitimate publisher always starts at 1.

Fields

node_id: NodeId

Publisher whose announcement carried generation 0.

RestoreOverLiveState

Restore was called on a non-empty fold without the force flag. The runtime refuses to merge a snapshot over a live state — operators who really want this pass force: true to super::Fold::restore.

Fields

current_len: usize

Current entry count of the live fold.

Trait Implementations

impl Debug for FoldError

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

Formats the value using the given formatter.

impl Display for FoldError

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

Formats the value using the given formatter.

impl Error for FoldError

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<FoldError> for WireError

fn from(source: FoldError) -> Self

Converts to this type from the input type.