Enum Projection 

#[non_exhaustive]
pub enum Projection {
    Identity(Value),
    Capability(Value),
    Flow(Value),
    Economic(Value),
}

One projection of a session into a verifiable record.

Adjacently tagged for wire compatibility with in-toto and SLSA predicates. non_exhaustive so new projection kinds can be added in minor releases without breaking external matchers.

Each variant’s body is currently a serde_json::Value because the concrete type per kind lives in a lifter crate (see nucleus-identity-projection, nucleus-flow-projection, nucleus-mechanism-vcg, etc.). substrate-core stays dep-light; lifters narrow the JSON to their typed shape.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Identity(Value)

Identity functor — a JWT-SVID + delegation-chain record. Lifter: nucleus-identity-projection.

Capability(Value)

Capability functor — a point in the Portcullis quotient lattice. Lifter: nucleus-capability-projection.

Flow(Value)

Flow functor — a FlowTracker DAG snapshot (Denning lattice). Lifter: nucleus-flow-projection.

Economic(Value)

Economic functor — a bid+match record with Clarke-pivot payments. Lifter: nucleus-mechanism-vcg.

Implementations

impl Projection

pub fn kind(&self) -> &'static str

The discriminant string used on the wire. Stable across versions.

Trait Implementations

impl Clone for Projection

fn clone(&self) -> Projection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Projection

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Projection

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Projection

fn eq(&self, other: &Projection) -> 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 Serialize for Projection

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Projection