Enum InvertError 

pub enum InvertError {
    ReusedEnvelope,
    NotInvertible {
        index: usize,
        op: &'static str,
    },
    MissingCurrent {
        index: usize,
        id: Id128,
    },
    Invalidated {
        index: usize,
        id: Id128,
        field: &'static str,
    },
    InverseUpdate {
        index: usize,
        reason: String,
    },
}

A refusal to stage an inverse; no partially inverted change-set is returned.

Operation indexes are zero-based indexes in the original forward op-list.

Variants

ReusedEnvelope

A revert must have its own provenance rather than reuse the forward envelope.

NotInvertible

This format cannot yet represent the exact inverse of this operation.

Fields

index: usize

Original forward operation index.

op: &'static str

Forward operation name.

MissingCurrent

The caller did not supply the target record in the required substrate map.

Fields

index: usize

Original forward operation index.

id: Id128

Identifier of the required current record.

Invalidated

The working record no longer matches a field required by the forward operation.

Fields

index: usize

Original forward operation index.

id: Id128

Identifier of the affected record.

field: &'static str

Mismatched field name; id also names map-key/record-ID mismatches.

InverseUpdate

The existing checked update constructor refused the swapped patch/preimage.

Fields

index: usize

Original forward operation index.

reason: String

The checked constructor’s diagnostic.

Trait Implementations

impl Debug for InvertError

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

Formats the value using the given formatter.

impl Display for InvertError

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

Formats the value using the given formatter.

impl Error for InvertError

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.