Struct VariantHandlerKey 

pub struct VariantHandlerKey {
    pub namespace: NamespaceId,
    pub sumtype: SumTypeId,
    pub variant_tag: u8,
    pub handler: HandlerId,
}

Key for looking up handlers by the variant they handle. Supports range scans for DISPATCH to find all handlers for a given (namespace, sumtype, variant_tag).

Fields

namespace: NamespaceId

sumtype: SumTypeId

variant_tag: u8

handler: HandlerId

Implementations

impl VariantHandlerKey

pub fn new( namespace: NamespaceId, sumtype: SumTypeId, variant_tag: u8, handler: HandlerId, ) -> Self

pub fn encoded( namespace: impl Into<NamespaceId>, sumtype: impl Into<SumTypeId>, variant_tag: u8, handler: impl Into<HandlerId>, ) -> EncodedKey

pub fn variant_scan( namespace: NamespaceId, sumtype: SumTypeId, variant_tag: u8, ) -> EncodedKeyRange

Range scan for all handlers of a specific variant.

Trait Implementations

impl Clone for VariantHandlerKey

fn clone(&self) -> VariantHandlerKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VariantHandlerKey

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

Formats the value using the given formatter.

impl EncodableKey for VariantHandlerKey

const KIND: KeyKind = KeyKind::VariantHandler

fn encode(&self) -> EncodedKey

fn decode(key: &EncodedKey) -> Option<Self>

impl PartialEq for VariantHandlerKey

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