Enum ClusterMembersState 

pub enum ClusterMembersState {
    Uninit,
    Stream(DebugExpr),
    Tee(LocationId, LocationId),
}

Tracks the instantiation state of a ClusterMembers source.

During compile_network, the first ClusterMembers node for a given (at_location, target_cluster) pair is promoted to Self::Stream and receives the expression returned by Deploy::cluster_membership_stream. All subsequent nodes for the same pair are set to Self::Tee so that during code-gen they simply reference the tee output of the first node instead of creating a redundant source_stream.

Variants

Uninit

Not yet instantiated.

Stream(DebugExpr)

The primary instance: holds the stream expression and will emit source_stream(expr) -> tee() during code-gen.

Tee(LocationId, LocationId)

A secondary instance that references the tee output of the primary. Stores (at_location_root, target_cluster_location) so that emit_core can derive the deterministic tee ident without extra state.

Trait Implementations

impl Clone for ClusterMembersState

fn clone(&self) -> ClusterMembersState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClusterMembersState

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

Formats the value using the given formatter.

impl Hash for ClusterMembersState

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.