Enum CorrelationKey 

pub enum CorrelationKey {
    ActivitySequence {
        ordinal: usize,
        activity: String,
    },
    Signal {
        reference: String,
    },
    Timer {
        id: String,
    },
    Child {
        ordinal: usize,
        name: String,
    },
    ControlFlow {
        ordinal: usize,
    },
    Opaque {
        ordinal: usize,
        snippet: String,
    },
}

The per-node identity a consumer maps recorded events onto.

The event-bearing kinds mirror how AD/AT sequences recorded events: activities by their static source position plus name, signals by name, timers by id, and children by spawn ordinal plus name. ControlFlow carries no recorded event of its own; it positions a structural node (a branch) in the discovery order. Opaque carries the source snippet of control flow the extractor could not model, so a consumer can surface it for review.

Variants

ActivitySequence

An activity dispatch: its static source-order position and activity name.

Fields

ordinal: usize

Zero-based static source-order position of this activity among all activity dispatches the extractor discovers, walking control flow depth-first from the entry function (success arms before error arms). It is a stable structural index, NOT a claim about the order replay re-applies recorded events: under branching, which activities a given run executes — and in what order — is data-dependent. A consumer aligns a recorded ActivityCompleted onto a node by the activity name and the branch the run actually took, not by assuming this ordinal equals the recorded sequence position.

activity: String

The engine-facing activity name (the run node’s activity).

Signal

A signal receive, identified by the signal-reference expression text.

The signal name is not a string literal at the receive call site (it is a typed SignalRef), so the reference identifier is carried as the stable correlation token a consumer aligns against the run’s signal reference.

Fields

reference: String

The signal-reference expression text passed to receive.

Timer

A timer, identified by its literal name as written at the call site.

Fields

id: String

The timer name string literal (start_timer’s first argument).

Child

A child spawn: its deterministic spawn ordinal and the literal child workflow name.

Fields

ordinal: usize

Zero-based position of this spawn among all child spawns, in call order — the ordinal a recorded child event carries.

name: String

The child workflow name string literal (the spawn’s first argument).

ControlFlow

A control-flow node (a branch) that records no event of its own.

Fields

ordinal: usize

Zero-based position of this control-flow node among all control-flow nodes, in discovery order.

Opaque

An unmodellable control-flow node: control flow the extractor detected but could not faithfully classify, carrying the offending source snippet so a consumer can render it for review. It records no event of its own.

Fields

ordinal: usize

Zero-based position of this opaque node among all opaque nodes, in discovery order.

snippet: String

The source snippet the extractor could not model.

Trait Implementations

impl Clone for CorrelationKey

fn clone(&self) -> CorrelationKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CorrelationKey

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

Formats the value using the given formatter.

impl Eq for CorrelationKey

impl Hash for CorrelationKey

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 Ord for CorrelationKey

fn cmp(&self, other: &CorrelationKey) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for CorrelationKey

fn eq(&self, other: &CorrelationKey) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for CorrelationKey

fn partial_cmp(&self, other: &CorrelationKey) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for CorrelationKey