acud
Version:
acg react 组件库
26 lines (25 loc) • 1.46 kB
JavaScript
;
var _typeof = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = useMemoCallback;
var React = _interopRequireWildcard(require("react"));
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function _interopRequireWildcard(e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, "default": e }; if (null === e || "object" != _typeof(e) && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (var _t in e) "default" !== _t && {}.hasOwnProperty.call(e, _t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, _t)) && (i.get || i.set) ? o(f, _t, i) : f[_t] = e[_t]); return f; })(e, t); }
/**
* 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 _a2;
var _a;
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
return (_a = funRef.current) === null || _a === void 0 ? void 0 : (_a2 = _a).call.apply(_a2, [funRef].concat(args));
}, []);
return func ? callback : undefined;
}