Enum ReplayError 

#[non_exhaustive]
pub enum ReplayError {
    EmptyTrace,
    OutOfOrderEvent {
        index: usize,
    },
    ZeroTarget {
        index: usize,
    },
    NonContiguousSteps {
        declared: u16,
        last_step: u32,
    },
    CapacityExceeded {
        declared: u16,
        provided: u32,
    },
}

v0.2.2 T5: errors emitted by the trace-replay re-derivation path.

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.

EmptyTrace

The trace was empty; nothing to replay.

OutOfOrderEvent

Event at index has a non-monotonic step_index.

Fields

index: usize

The event index that was out of order.

ZeroTarget

Event at index carries a zero ContentAddress (forbidden in well-formed traces).

Fields

index: usize

The event index that carried a zero target.

NonContiguousSteps

v0.2.2 T5.8: event step indices do not form a contiguous sequence [0, 1, ..., len-1]. Replaces the misleadingly-named v0.2.1 LengthMismatch variant. The trace has the right number of events, but their step indices skip values (e.g., [0, 2, 5] with len = 3).

Fields

declared: u16

The trace’s declared length (number of events).

last_step: u32

The largest step_index observed in the event sequence. Always strictly greater than declared - 1 when this variant fires.

CapacityExceeded

A caller attempted to construct a Trace<TR_MAX> whose event count exceeds TR_MAX (the application’s <HostBounds>::TRACE_MAX_EVENTS). Distinct from NonContiguousSteps because the recovery is different (truncate vs. close gaps). Returned by Trace::try_from_events, never by verify_trace (the verifier reads from an existing Trace whose capacity is already enforced by the type’s storage).

Fields

declared: u16

The trace’s hard capacity (TR_MAX).

provided: u32

The actual event count the caller attempted to pack in.

Trait Implementations

impl Clone for ReplayError

fn clone(&self) -> ReplayError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReplayError

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

Formats the value using the given formatter.

impl Display for ReplayError

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

Formats the value using the given formatter.

impl Error for ReplayError

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 Hash for ReplayError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ReplayError

fn eq(&self, other: &ReplayError) -> 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 Copy for ReplayError

impl Eq for ReplayError

impl StructuralPartialEq for ReplayError