devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
52 lines (51 loc) • 1.9 kB
JavaScript
/**
* DevExtreme (esm/__internal/utils/memoize.js)
* Version: 24.2.6
* Build date: Mon Mar 17 2025
*
* Copyright (c) 2012 - 2025 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import {
equalByValue
} from "../../core/utils/common";
const compareByReference = (args, lastArgs) => args.length === lastArgs.length && !Object.keys(args).some((key => args[key] !== lastArgs[key]));
const compareByValue = (args, lastArgs) => equalByValue(args, lastArgs, {
maxDepth: 4
});
const createCacheFunc = (firstArgs, firstResult, originFunc, compareFunc) => {
let lastArgs = firstArgs;
let lastResult = firstResult;
return function() {
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key]
}
const argsEquals = compareFunc(args, lastArgs);
if (argsEquals) {
return lastResult
}
lastArgs = args;
lastResult = originFunc(...lastArgs);
return lastResult
}
};
const MEMOIZE_DEFAULT_OPTIONS = {
compareType: "reference"
};
export const memoize = function(func) {
let {
compareType: compareType
} = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : MEMOIZE_DEFAULT_OPTIONS;
let cachedFunc = null;
return function() {
for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
args[_key2] = arguments[_key2]
}
if (!cachedFunc) {
const firstResult = func(...args);
cachedFunc = createCacheFunc(args, firstResult, func, "reference" === compareType ? compareByReference : compareByValue);
return firstResult
}
return cachedFunc(...args)
}
};