Function createChild

lib/assets/react-source/development/react.js:17309–17356

(returnFiber, newChild, expirationTime)

	  }

	  function createChild(returnFiber, newChild, expirationTime) {
	    if (typeof newChild === 'string' || typeof newChild === 'number') {
	      // Text nodes don't have keys. If the previous node is implicitly keyed
	      // we can continue to replace it without aborting even if it is not a text
	      // node.
	      var created = createFiberFromText('' + newChild, returnFiber.mode, expirationTime);
	      created.return = returnFiber;
	      return created;
	    }

	    if (typeof newChild === 'object' && newChild !== null) {
	      switch (newChild.$$typeof) {
	        case REACT_ELEMENT_TYPE:
	          {
	            var _created = createFiberFromElement(newChild, returnFiber.mode, expirationTime);

	            _created.ref = coerceRef(returnFiber, null, newChild);
	            _created.return = returnFiber;
	            return _created;
	          }

	        case REACT_PORTAL_TYPE:
	          {
	            var _created2 = createFiberFromPortal(newChild, returnFiber.mode, expirationTime);

	            _created2.return = returnFiber;
	            return _created2;
	          }
	      }

	      if (isArray$1(newChild) || getIteratorFn(newChild)) {
	        var _created3 = createFiberFromFragment(newChild, returnFiber.mode, expirationTime, null);

	        _created3.return = returnFiber;
	        return _created3;
	      }

	      throwOnInvalidObjectType(returnFiber, newChild);
	    }

	    {
	      if (typeof newChild === 'function') {
	        warnOnFunctionType();
	      }
	    }

	    return null;
	  }

	  function updateSlot(returnFiber, oldFiber, newChild, expirationTime) {
	    // Update the fiber if the keys match, otherwise return null.