Struct PredicateInst 

pub struct PredicateInst {
    pub path: FieldPath,
    pub op: CompiledOperator,
}

Fields

path: FieldPath

op: CompiledOperator

Implementations

impl PredicateInst

pub fn test(&self, view: &PredicateView<'_>) -> bool

Evaluate the predicate against a phase-typed view. Path-reader → operator-family dispatch; the matrix of legal (path, op) pairs is enforced at compile (see Operator::family and OperatorFamily::accepts). Illegal pairs cannot reach this function in any compiled FlowGraph; they would have failed compile_operator. Hand-built PredicateInsts in tests that supply an unreachable pair fall through to false — sound-by- default per the spec’s “missing fields miss” contract.

Reads that need an absent piece of state (e.g. tls.sni on a cleartext connection, http.header.upgrade from an L4 view) also miss rather than panic.

Panics

On the http.body arm, the path-reader calls Body::as_static().expect("lazy-buffer invariant"). The compile pass marks the incoming edge of every http.body Check with collect_body_before = Some(BodySide::Request), so by the time test() runs the executor has already collected the request body into Body::Static. A Body::Stream / Body::Empty reaching this arm therefore signals a FlowGraph compile bug and is surfaced as a clear panic instead of a silent miss. All other arms are panic-free; absent state misses sound-by-default.

Trait Implementations

impl Clone for PredicateInst

fn clone(&self) -> PredicateInst

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PredicateInst

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PredicateInst

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for PredicateInst

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PredicateInst

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PredicateInst

impl StructuralPartialEq for PredicateInst