48 lines
2.3 KiB
JavaScript
48 lines
2.3 KiB
JavaScript
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"use strict";
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var _typeof = require("@babel/runtime/helpers/typeof");
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = exports.RenderBlock = void 0;
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var React = _interopRequireWildcard(require("react"));
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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); }
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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; }
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/* istanbul ignore file */
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function useRenderTimes(props, debug) {
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// Render times
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var timesRef = React.useRef(0);
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timesRef.current += 1;
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// Props changed
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var propsRef = React.useRef(props);
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var keys = [];
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Object.keys(props || {}).map(function (key) {
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var _propsRef$current;
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if ((props === null || props === void 0 ? void 0 : props[key]) !== ((_propsRef$current = propsRef.current) === null || _propsRef$current === void 0 ? void 0 : _propsRef$current[key])) {
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keys.push(key);
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}
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});
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propsRef.current = props;
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// Cache keys since React rerender may cause it lost
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var keysRef = React.useRef([]);
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if (keys.length) {
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keysRef.current = keys;
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}
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React.useDebugValue(timesRef.current);
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React.useDebugValue(keysRef.current.join(', '));
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if (debug) {
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console.log("".concat(debug, ":"), timesRef.current, keysRef.current);
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}
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return timesRef.current;
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}
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var _default = exports.default = process.env.NODE_ENV !== 'production' ? useRenderTimes : function () {};
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var RenderBlock = exports.RenderBlock = /*#__PURE__*/React.memo(function () {
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var times = useRenderTimes();
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return /*#__PURE__*/React.createElement("h1", null, "Render Times: ", times);
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});
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if (process.env.NODE_ENV !== 'production') {
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RenderBlock.displayName = 'RenderBlock';
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}
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