text: "use strict";
  
  var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.default = void 0;
  
  var _propTypes = _interopRequireDefault(require("prop-types"));
  
  var _chainPropTypes = _interopRequireDefault(require("./chainPropTypes"));
  
  function isClassComponent(elementType) {
    // elementType.prototype?.isReactComponent
    var _elementType$prototyp = elementType.prototype,
        prototype = _elementType$prototyp === void 0 ? {} : _elementType$prototyp;
    return Boolean(prototype.isReactComponent);
  }
  
  function acceptingRef(props, propName, componentName, location, propFullName) {
    var element = props[propName];
    var safePropName = propFullName || propName;
  
    if (element == null) {
      return null;
    }
  
    var warningHint;
    var elementType = element.type;
    /**
     * Blacklisting instead of whitelisting
     *
     * Blacklisting will miss some components, such as React.Fragment. Those will at least
     * trigger a warning in React.
     * We can't whitelist because there is no safe way to detect React.forwardRef
     * or class components. "Safe" means there's no public API.
     *
     */
  
    if (typeof elementType === 'function' && !isClassComponent(elementType)) {
      warningHint = 'Did you accidentally use a plain function component for an element instead?';
    }
  
    if (warningHint !== undefined) {
      return new Error("Invalid ".concat(location, " `").concat(safePropName, "` supplied to `").concat(componentName, "`. ") + "Expected an element that can hold a ref. ".concat(warningHint, " ") + 'For more information see https://mui.com/r/caveat-with-refs-guide');
    }
  
    return null;
  }
  
  var elementAcceptingRef = (0, _chainPropTypes.default)(_propTypes.default.element, acceptingRef);
  elementAcceptingRef.isRequired = (0, _chainPropTypes.default)(_propTypes.default.element.isRequired, acceptingRef);
  var _default = elementAcceptingRef;
  exports.default = _default;