Enum NodeSelector 

pub enum NodeSelector {
    All,
    ByKind(GraphNodeKind),
    Explicit(Vec<NodeId>),
    HasMetadata(String),
    Predicate(Box<dyn Fn(&GraphNode) -> bool + Send + Sync>),
}

Determines which nodes a sampler should operate on.

Variants

All

Sample every node in the graph.

ByKind(GraphNodeKind)

Only nodes whose kind matches.

Explicit(Vec<NodeId>)

Only nodes with these specific IDs.

HasMetadata(String)

Only nodes whose metadata contains the given key.

Predicate(Box<dyn Fn(&GraphNode) -> bool + Send + Sync>)

Custom predicate (not serializable — use for in-process composition).

Implementations

impl NodeSelector

pub fn matches(&self, node: &GraphNode) -> bool

Test whether a node passes this selector.

Trait Implementations

impl Debug for NodeSelector

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

Formats the value using the given formatter.

impl Default for NodeSelector

fn default() -> Self

Returns the “default value” for a type.