Struct IncompleteUpcastChain 

pub struct IncompleteUpcastChain {
    pub kind_bits: u16,
    pub current_version: u16,
    pub missing_from_versions: Vec<u16>,
    pub type_name: &'static str,
}

A registered payload kind whose declared PAYLOAD_VERSION > 1 is missing one or more from_version hops in its registered upcast chain.

Such a kind compiles fine, but an event stored at any uncovered version would be undecodable at read time (the decode seam hits UpcastError::MissingStep with no step to run). Surfacing it lets Store::open fail closed up front.

Fields

kind_bits: u16

Packed (category << 12) | type_id; equals EventKind::as_raw_u16.

current_version: u16

The declared current payload version (always > 1 for a reported gap).

missing_from_versions: Vec<u16>

The from_version hops in 1..current_version that have no registered step, ascending. Always non-empty for a reported gap.

type_name: &'static str

A registered type name for kind_bits, for diagnostics.

Trait Implementations

impl Clone for IncompleteUpcastChain

fn clone(&self) -> IncompleteUpcastChain

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IncompleteUpcastChain

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

Formats the value using the given formatter.

impl Eq for IncompleteUpcastChain

impl PartialEq for IncompleteUpcastChain

fn eq(&self, other: &IncompleteUpcastChain) -> 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 IncompleteUpcastChain