Enum Error 

pub enum Error {
    ForkMismatch {
        state_fork: ForkName,
        delta_fork: ForkName,
    },
    InvalidFieldForFork {
        field: &'static str,
        fork: ForkName,
    },
    InvalidDelta(String),
    MalformedDelta(String),
}

Errors that can occur while creating or applying a state delta.

Delta application can fail when the delta is incompatible with the target state or when the delta payload cannot be interpreted or applied safely. This error type distinguishes fork-specific incompatibilities from malformed delta data.

Variants

ForkMismatch

The delta was created for a different Ethereum consensus fork than the state it is being applied to.

A delta must only be applied to a state from the same fork because state fields and their SSZ layouts may differ between forks.

Fields

state_fork: ForkName

Fork of the state receiving the delta.

delta_fork: ForkName

Fork for which the delta was created.

InvalidFieldForFork

The delta contains a field that is not part of the target fork’s state representation.

This generally indicates an incorrectly constructed delta or an attempt to apply a delta using the wrong fork-specific schema.

Fields

field: &'static str

Name of the field included in the delta.

fork: ForkName

Fork against which the field was validated.

InvalidDelta(String)

The delta is structurally valid enough to decode, but its contents are inconsistent or incompatible with the state to which it is being applied.

MalformedDelta(String)

The delta payload cannot be decoded or does not contain the data required to apply it safely.

This includes malformed or corrupted serialized data, truncated or otherwise invalid encoded payloads, and failures encountered while decoding compressed delta data.

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, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Error

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Error