Function beginFollow

scripts/function-stalker.js:205–220

(tid, scope)

let callsSeen = 0;

function beginFollow(tid, scope) {
  const d = (depthByTid.get(tid) || 0) + 1;
  depthByTid.set(tid, d);
  if (d > 1 && CONFIG.maxDepthFollow) return; // already following at outer frame

  const state = { scope, count: 0, dropped: 0 };
  stateByTid.set(tid, state);
  try {
    Stalker.follow(tid, {
      events: eventsConfig(),
      onReceive(events) { drainEvents(tid, state, events); },
    });
  } catch (e) {
    console.log(`${C.red}[fstalk] follow ${tid} failed: ${e}${C.reset}`);
  }
}

function endFollow(tid) {
  const d = (depthByTid.get(tid) || 0) - 1;