Function commitAttachRef

lib/assets/react-source/development/react.js:23701–23729

(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;