Enum DecisionLedgerError 

#[non_exhaustive]
pub enum DecisionLedgerError {
    InvalidCapacity,
    InvalidTimeRange,
    NonFiniteReward,
    PendingCapacityExceeded,
    CompletedCapacityExceeded,
    ValueTooLarge,
    InvalidValue,
    DecisionConflict,
    UnknownDecision,
    DuplicateFeedback,
    FeedbackBeforeDecision,
    FeedbackExpired,
    GenerationMismatch,
    ActionMismatch,
}

Validation and capacity failures. Every failure leaves the ledger intact.

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.

InvalidCapacity

A configured capacity was zero.

InvalidTimeRange

Decision expiry preceded creation.

NonFiniteReward

A reward was NaN or infinite.

PendingCapacityExceeded

Pending storage is full; live decisions are not evicted implicitly.

CompletedCapacityExceeded

Tombstone storage is full; completed entries require explicit cleanup.

ValueTooLarge

A context or action exceeds the configured byte estimate.

InvalidValue

A context or action violates its type-specific semantic invariants.

DecisionConflict

The identifier exists with different immutable facts.

UnknownDecision

Feedback references no pending or completed identifier.

DuplicateFeedback

Feedback was already accepted for this identifier.

FeedbackBeforeDecision

Outcome timestamp precedes decision creation.

FeedbackExpired

Outcome timestamp is after the inclusive expiry boundary.

GenerationMismatch

Outcome generation differs from the recorded generation.

ActionMismatch

Outcome action differs from the selected action.

Trait Implementations

impl Clone for DecisionLedgerError

fn clone(&self) -> DecisionLedgerError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DecisionLedgerError

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

Formats the value using the given formatter.

impl Display for DecisionLedgerError

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

Formats the value using the given formatter.

impl Error for DecisionLedgerError

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 DecisionLedgerError

fn eq(&self, other: &DecisionLedgerError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DecisionLedgerError