Enum ScopeFilter 

pub enum ScopeFilter<'a> {
    Any,
    GlobalOnly,
    SameSubnet,
    Tenant(&'a str),
    Tenants(&'a [&'a str]),
    Region(&'a str),
    Regions(&'a [&'a str]),
}

Caller’s intent for narrowing peer discovery by reserved scope tags. The legacy CapabilityIndex::find_nodes_scoped / find_best_node_scoped callers were rewired to the CapabilityFold in Phase 3B; this filter still parameterizes the scope-axis decision on the fold side.

Any reproduces v1 behavior for non-SubnetLocal peers but excludes peers that explicitly tagged themselves scope:subnet-local — that tag is an opt-out from cross-subnet discovery.

Variants

Any

Match every peer regardless of scope, except those tagged scope:subnet-local (which always require Self::SameSubnet).

GlobalOnly

Match only peers with no scope:* tag (resolve to Global). Useful for opting out of all scoped peers.

SameSubnet

Match peers whose subnet equals the caller’s. The actual subnet comparison is supplied by the caller (typically by closing over MeshNode::peer_subnets); the index doesn’t own subnet state.

Tenant(&'a str)

Match peers tagged scope:tenant:<t> OR untagged (Global is permissive across tenants by design).

Tenants(&'a [&'a str])

Match peers tagged scope:tenant:<t> for any t in the list, OR untagged.

Region(&'a str)

Match peers tagged scope:region:<r> OR untagged.

Regions(&'a [&'a str])

Match peers tagged scope:region:<r> for any r in the list, OR untagged.

Trait Implementations

impl<'a> Clone for ScopeFilter<'a>

fn clone(&self) -> ScopeFilter<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ScopeFilter<'a>

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

Formats the value using the given formatter.