Function commitAttachRef

docs/external/js/react-dom.development.js:20141–20169

(finishedWork)

  }

  function commitAttachRef(finishedWork) {
    var ref = finishedWork.ref;

    if (ref !== null) {
      var instance = finishedWork.stateNode;
      var instanceToUse;

      switch (finishedWork.tag) {
        case HostComponent:
          instanceToUse = getPublicInstance(instance);
          break;

        default:
          instanceToUse = instance;
      } // Moved outside to ensure DCE works with this flag

      if (typeof ref === 'function') {
        ref(instanceToUse);
      } else {
        {
          if (!ref.hasOwnProperty('current')) {
            error('Unexpected ref object provided for %s. ' + 'Use either a ref-setter function or React.createRef().%s', getComponentName(finishedWork.type), getStackByFiberInDevAndProd(finishedWork));
          }
        }

        ref.current = instanceToUse;
      }
    }
  }

  function commitDetachRef(current) {
    var currentRef = current.ref;