Function createElementWithValidation

dash/deps/react@16.14.0.js:1946–2008

(type, props, children)

    }
  }
  function createElementWithValidation(type, props, children) {
    var validType = isValidElementType(type); // We warn in this case but don't throw. We expect the element creation to
    // succeed and there will likely be errors in render.

    if (!validType) {
      var info = '';

      if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
        info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports.";
      }

      var sourceInfo = getSourceInfoErrorAddendumForProps(props);

      if (sourceInfo) {
        info += sourceInfo;
      } else {
        info += getDeclarationErrorAddendum();
      }

      var typeString;

      if (type === null) {
        typeString = 'null';
      } else if (Array.isArray(type)) {
        typeString = 'array';
      } else if (type !== undefined && type.$$typeof === REACT_ELEMENT_TYPE) {
        typeString = "<" + (getComponentName(type.type) || 'Unknown') + " />";
        info = ' Did you accidentally export a JSX literal instead of a component?';
      } else {
        typeString = typeof type;
      }

      {
        error('React.createElement: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', typeString, info);
      }
    }

    var element = createElement.apply(this, arguments); // The result can be nullish if a mock or a custom function is used.
    // TODO: Drop this when these are no longer allowed as the type argument.

    if (element == null) {
      return element;
    } // Skip key warning if the type isn't valid since our key validation logic
    // doesn't expect a non-string/function type and can throw confusing errors.
    // We don't want exception behavior to differ between dev and prod.
    // (Rendering will throw with a helpful message and as soon as the type is
    // fixed, the key warnings will appear.)


    if (validType) {
      for (var i = 2; i < arguments.length; i++) {
        validateChildKeys(arguments[i], type);
      }
    }

    if (type === REACT_FRAGMENT_TYPE) {
      validateFragmentProps(element);
    } else {