Enum Activation 

pub enum Activation {
    Any,
    All,
}

How a node joins a frontier, i.e. how its pending activation tokens are counted.

Variants

Any

Fire as soon as at least one incoming edge holds a pending token (control-flow default). Exactly one token is consumed per firing (from the lowest-declared pending edge), so co-pending tokens re-fire the node on later supersteps — an Any-join fires once per arriving branch.

All

Fire only when every incoming edge holds ≥1 pending token (dataflow default). One token per incoming edge is consumed.

Beware inside loops: an All-join on a cycle is the classic self-deadlock — one predecessor’s token arrives once per iteration while the other’s arrives once ever, so the join waits forever. Joins inside loops are almost always Any or merger-joins; validation warns on this shape.

Trait Implementations

impl Clone for Activation

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Activation

impl Debug for Activation

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

Formats the value using the given formatter.

impl Default for Activation

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Activation

impl From<Activation> for ActivationDef

fn from(activation: Activation) -> Self

Converts to this type from the input type.

impl From<ActivationDef> for Activation

fn from(def: ActivationDef) -> Self

Converts to this type from the input type.

impl PartialEq for Activation

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Activation