Enum CommittedCandidateReceiptError 

pub enum CommittedCandidateReceiptError {
    InvalidCoreIndex,
    CoreIndexMismatch {
        descriptor: CoreIndex,
        commitments: CoreIndex,
    },
    InvalidSelectedCore,
    UmpSignalDecode,
    NoAssignment,
    UnknownVersion(u8),
    TooManyUMPSignals,
    DuplicateUMPSignal,
    UMPSignalWithV1Descriptor,
    NoUMPSignalWithV3Descriptor,
}

CommittedCandidateReceiptError construction errors.

Variants

InvalidCoreIndex

The specified core index is invalid.

CoreIndexMismatch

The core index in commitments doesn’t match the one in descriptor

Fields

descriptor: CoreIndex

The core index as found in the descriptor.

commitments: CoreIndex

The core index as found in the commitments.

InvalidSelectedCore

The core selector or claim queue offset is invalid.

UmpSignalDecode

Could not decode UMP signal.

NoAssignment

The parachain is not assigned to any core at specified claim queue offset.

UnknownVersion(u8)

Unknown version.

TooManyUMPSignals

The allowed number of UMPSignal messages in the queue was exceeded.

DuplicateUMPSignal

Duplicated UMP signal.

UMPSignalWithV1Descriptor

If the parachain runtime started sending ump signals, v1 descriptors are no longer allowed.

NoUMPSignalWithV3Descriptor

Starting with v3 ump signals are mandatory.

This is to avoid nodes only understanding v1 and v2 to getting tricked into backing a candidate that looks like a valid v1 to them, but is actually an invalid v3.

This is prevented by the runtime rejecting v3 candidates without ump signals. Therefore a candidate that was erroneously backed as v1, while it actually was a v3 would get rejected by the runtime due to missing signals, thus preventing the backer from getting slashed. This is given, because v1 and v2 only nodes would not back a v1 candidate with UMP signals, as that is seen as invalid by them already.

Trait Implementations

impl Clone for CommittedCandidateReceiptError

fn clone(&self) -> CommittedCandidateReceiptError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CommittedCandidateReceiptError

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

Formats the value using the given formatter.

impl Decode for CommittedCandidateReceiptError

fn decode<__CodecInputEdqy>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<CommittedCandidateReceiptError, Error>

where __CodecInputEdqy: Input,

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Display for CommittedCandidateReceiptError

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

Formats the value using the given formatter.

impl Encode for CommittedCandidateReceiptError

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

where __CodecOutputEdqy: Output + ?Sized,

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl EncodeLike for CommittedCandidateReceiptError

impl Eq for CommittedCandidateReceiptError

impl Error for CommittedCandidateReceiptError

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 CommittedCandidateReceiptError

fn eq(&self, other: &CommittedCandidateReceiptError) -> 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 StructuralPartialEq for CommittedCandidateReceiptError

impl TypeInfo for CommittedCandidateReceiptError

type Identity = CommittedCandidateReceiptError

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.