Struct ValidationContext 

pub struct ValidationContext {
    pub candidate_receipt: CandidateReceiptV2,
    pub pvd: Arc<PersistedValidationData>,
    pub pov: Arc<PoV>,
    pub executor_params: ExecutorParams,
    pub exec_timeout: Duration,
    pub v3_seen: bool,
}

Contains all context needed to validate a candidate. This reduces parameter explosion and keeps related data together.

Use this struct when passing validation data through the system. When sending to the execute worker, use ValidationContext::into_execute_request to extract only the data needed by the worker.

Fields

candidate_receipt: CandidateReceiptV2

The candidate receipt being validated

pvd: Arc<PersistedValidationData>

Persisted validation data

pov: Arc<PoV>

Proof-of-validity

executor_params: ExecutorParams

Execution parameters

exec_timeout: Duration

Execution timeout

v3_seen: bool

Whether the CandidateReceiptV3 node feature has ever been seen enabled.

During the V3 transition period, this flag determines whether to trust descriptor.version() or fall back to descriptor.version_old_rules() for approval/dispute validations. See CandidateDescriptorV2::version_for_candidate_validation.

Implementations

impl ValidationContext

pub fn relay_parent(&self) -> Hash

Get the relay parent hash from the candidate descriptor

pub fn scheduling_parent(&self) -> Hash

Get the scheduling parent hash, using transition-safe logic.

pub fn descriptor_version(&self) -> CandidateDescriptorVersion

Get the effective candidate descriptor version, using transition-safe logic.

pub fn into_execute_request( self, artifact_checksum: ArtifactChecksum, ) -> ExecuteRequest

Convert to an ExecuteRequest for sending to the worker. This extracts only the data needed by the execute worker process. Consumes self since the context is no longer needed after sending to the worker.

Trait Implementations

impl Clone for ValidationContext

fn clone(&self) -> ValidationContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidationContext

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

Formats the value using the given formatter.

impl Decode for ValidationContext

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

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 Encode for ValidationContext

fn size_hint(&self) -> usize

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

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

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 ValidationContext