Struct WireEnvelopeHeader 

pub struct WireEnvelopeHeader {
    pub paradigm_kind: u8,
    pub discriminator: u32,
    pub parity_mode: u8,
    pub rank_id: Option<u32>,
    pub dataset_hash: [u8; 32],
    pub params_hash: [u8; 32],
    pub shape_fingerprint: [u32; 4],
}

Paradigm-agnostic envelope header. Carries everything vernier-partial needs to validate cross-rank compatibility: paradigm + sub-kind, parity mode, dataset / params hashes, the shape fingerprint, and the rank id.

Field order is wire-format load-bearing. rkyv’s archived layout follows declaration order; reordering or inserting a field changes the byte layout. Add new fields at the end and bump FORMAT_VERSION.

Fields

paradigm_kind: u8

ParadigmKind::as_u8.

discriminator: u32

Paradigm-defined sub-kind. Instance: KernelKind discriminant. Semantic: 0. Panoptic: 0.

parity_mode: u8

ParityMode discriminant.

rank_id: Option<u32>

Optional rank identifier (none for single-rank flows).

dataset_hash: [u8; 32]

BLAKE3 over the canonical dataset form.

params_hash: [u8; 32]

BLAKE3 over the canonical params archive.

shape_fingerprint: [u32; 4]

Paradigm-specific four-slot shape fingerprint. Instance: (n_categories, n_area_ranges, n_images, retain_iou as u32). Semantic: (n_classes, 0, n_images, 0). Panoptic: (n_categories, 0, n_images, things_stuff_split as u32).

Trait Implementations

impl Archive for WireEnvelopeHeader

where u8: Archive, u32: Archive, Option<u32>: Archive, [u8; 32]: Archive, [u32; 4]: Archive,

const COPY_OPTIMIZATION: CopyOptimization<Self>

An optimization flag that allows the bytes of this type to be copied directly to a writer instead of calling serialize.

type Archived = ArchivedWireEnvelopeHeader

The archived representation of this type.

type Resolver = WireEnvelopeHeaderResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

fn resolve(&self, resolver: Self::Resolver, out: Place<Self::Archived>)

Creates the archived version of this value at the given position and writes it to the given output.

impl Clone for WireEnvelopeHeader

fn clone(&self) -> WireEnvelopeHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WireEnvelopeHeader

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

Formats the value using the given formatter.

impl<__D: Fallible + ?Sized> Deserialize<WireEnvelopeHeader, __D> for Archived<WireEnvelopeHeader>

where u8: Archive, <u8 as Archive>::Archived: Deserialize<u8, __D>, u32: Archive, <u32 as Archive>::Archived: Deserialize<u32, __D>, Option<u32>: Archive, <Option<u32> as Archive>::Archived: Deserialize<Option<u32>, __D>, [u8; 32]: Archive, <[u8; 32] as Archive>::Archived: Deserialize<[u8; 32], __D>, [u32; 4]: Archive, <[u32; 4] as Archive>::Archived: Deserialize<[u32; 4], __D>,

fn deserialize( &self, deserializer: &mut __D, ) -> Result<WireEnvelopeHeader, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl<__S: Fallible + ?Sized> Serialize<__S> for WireEnvelopeHeader

where u8: Serialize<__S>, u32: Serialize<__S>, Option<u32>: Serialize<__S>, [u8; 32]: Serialize<__S>, [u32; 4]: Serialize<__S>,

fn serialize( &self, serializer: &mut __S, ) -> Result<<Self as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.