function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); } import { isMemo } from 'react-is'; export function fillRef(ref, node) { if (typeof ref === 'function') { ref(node); } else if (_typeof(ref) === 'object' && ref && 'current' in ref) { ref.current = node; } } /** * Merge refs into one ref function to support ref passing. */ export function composeRef() { for (var _len = arguments.length, refs = new Array(_len), _key = 0; _key < _len; _key++) { refs[_key] = arguments[_key]; } return function (node) { refs.forEach(function (ref) { fillRef(ref, node); }); }; } export function supportRef(nodeOrComponent) { var _type$prototype, _nodeOrComponent$prot; var type = isMemo(nodeOrComponent) ? nodeOrComponent.type.type : nodeOrComponent.type; // Function component node if (typeof type === 'function' && !((_type$prototype = type.prototype) === null || _type$prototype === void 0 ? void 0 : _type$prototype.render)) { return false; } // Class component if (typeof nodeOrComponent === 'function' && !((_nodeOrComponent$prot = nodeOrComponent.prototype) === null || _nodeOrComponent$prot === void 0 ? void 0 : _nodeOrComponent$prot.render)) { return false; } return true; } /* eslint-enable */