Struct NullTracer 

pub struct NullTracer;

No-op tracer for normal execution.

Trait Implementations

impl Tracer for NullTracer

fn enter_call(&mut self, _: &str, _: &str, _: &[Value])

fn enter_effect(&mut self, _: &str, _: &str, _: &str, _: &[Value])

fn exit_ok(&mut self, _: &Value)

fn exit_err(&mut self, _: &str)

fn exit_call_tail(&mut self)

Tail-call optimization: pop the current frame’s open call without re-entering the parent (the new call takes its place).

fn override_effect(&mut self, _node_id: &str) -> Option<Value>

During replay, return Some(v) to substitute an effect’s output.