"use strict"; var _typeof = require("@babel/runtime/helpers/typeof"); Object.defineProperty(exports, "__esModule", { value: true }); exports.default = useMemoCallback; var React = _interopRequireWildcard(require("react")); function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); } function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; } /** * Cache callback function that always return same ref instead. * This is used for context optimization. */ function useMemoCallback(func) { var funRef = React.useRef(func); funRef.current = func; var callback = React.useCallback(function () { var _funRef$current; for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { args[_key] = arguments[_key]; } return (_funRef$current = funRef.current) === null || _funRef$current === void 0 ? void 0 : _funRef$current.call.apply(_funRef$current, [funRef].concat(args)); }, []); return func ? callback : undefined; }