Function startWorkLoopTimer

docs/external/js/react-dom.development.js:10605–10620

(nextUnitOfWork)

    }
  }
  function startWorkLoopTimer(nextUnitOfWork) {
    {
      currentFiber = nextUnitOfWork;

      if (!supportsUserTiming) {
        return;
      }

      commitCountInCurrentWorkLoop = 0; // This is top level call.
      // Any other measurements are performed within.

      beginMark('(React Tree Reconciliation)'); // Resume any measurements that were in progress during the last loop.

      resumeTimers();
    }
  }
  function stopWorkLoopTimer(interruptedBy, didCompleteRoot) {
    {
      if (!supportsUserTiming) {