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Name	Size	Permission	Date
dist	[ DIR ]	drwxr-xr-x	2025-04-08 13:05
internal	[ DIR ]	drwxr-xr-x	2025-04-08 13:05
CHANGELOG.md	32.7 KB	-rw-r--r--	2025-04-08 13:05
LICENSE	1.04 KB	-rw-r--r--	2025-04-08 13:05
README.md	3.14 KB	-rw-r--r--	2025-04-08 13:05
all.js	3.48 KB	-rw-r--r--	2025-04-08 13:05
allLimit.js	1.71 KB	-rw-r--r--	2025-04-08 13:05
allSeries.js	1.61 KB	-rw-r--r--	2025-04-08 13:05
any.js	3.71 KB	-rw-r--r--	2025-04-08 13:05
anyLimit.js	1.74 KB	-rw-r--r--	2025-04-08 13:05
anySeries.js	1.64 KB	-rw-r--r--	2025-04-08 13:05
apply.js	217 B	-rw-r--r--	2025-04-08 13:05
applyEach.js	1.94 KB	-rw-r--r--	2025-04-08 13:05
applyEachSeries.js	1.27 KB	-rw-r--r--	2025-04-08 13:05
asyncify.js	3.67 KB	-rw-r--r--	2025-04-08 13:05
auto.js	11.58 KB	-rw-r--r--	2025-04-08 13:05
autoInject.js	6.93 KB	-rw-r--r--	2025-04-08 13:05
bower.json	239 B	-rw-r--r--	2025-04-08 13:05
cargo.js	2.68 KB	-rw-r--r--	2025-04-08 13:05
cargoQueue.js	3.27 KB	-rw-r--r--	2025-04-08 13:05
compose.js	1.53 KB	-rw-r--r--	2025-04-08 13:05
concat.js	3.57 KB	-rw-r--r--	2025-04-08 13:05
concatLimit.js	2.04 KB	-rw-r--r--	2025-04-08 13:05
concatSeries.js	1.44 KB	-rw-r--r--	2025-04-08 13:05
constant.js	302 B	-rw-r--r--	2025-04-08 13:05
detect.js	3.17 KB	-rw-r--r--	2025-04-08 13:05
detectLimit.js	1.79 KB	-rw-r--r--	2025-04-08 13:05
detectSeries.js	1.7 KB	-rw-r--r--	2025-04-08 13:05
dir.js	1.27 KB	-rw-r--r--	2025-04-08 13:05
doDuring.js	2.25 KB	-rw-r--r--	2025-04-08 13:05
doUntil.js	1.66 KB	-rw-r--r--	2025-04-08 13:05
doWhilst.js	2.25 KB	-rw-r--r--	2025-04-08 13:05
during.js	2.28 KB	-rw-r--r--	2025-04-08 13:05
each.js	3.93 KB	-rw-r--r--	2025-04-08 13:05
eachLimit.js	1.75 KB	-rw-r--r--	2025-04-08 13:05
eachOf.js	5.61 KB	-rw-r--r--	2025-04-08 13:05
eachOfLimit.js	1.6 KB	-rw-r--r--	2025-04-08 13:05
eachOfSeries.js	1.3 KB	-rw-r--r--	2025-04-08 13:05
eachSeries.js	1.54 KB	-rw-r--r--	2025-04-08 13:05
ensureAsync.js	2.26 KB	-rw-r--r--	2025-04-08 13:05
every.js	3.48 KB	-rw-r--r--	2025-04-08 13:05
everyLimit.js	1.71 KB	-rw-r--r--	2025-04-08 13:05
everySeries.js	1.61 KB	-rw-r--r--	2025-04-08 13:05
filter.js	2.83 KB	-rw-r--r--	2025-04-08 13:05
filterLimit.js	1.62 KB	-rw-r--r--	2025-04-08 13:05
filterSeries.js	1.51 KB	-rw-r--r--	2025-04-08 13:05
find.js	3.17 KB	-rw-r--r--	2025-04-08 13:05
findLimit.js	1.79 KB	-rw-r--r--	2025-04-08 13:05
findSeries.js	1.7 KB	-rw-r--r--	2025-04-08 13:05
flatMap.js	3.57 KB	-rw-r--r--	2025-04-08 13:05
flatMapLimit.js	2.04 KB	-rw-r--r--	2025-04-08 13:05
flatMapSeries.js	1.44 KB	-rw-r--r--	2025-04-08 13:05
foldl.js	4.76 KB	-rw-r--r--	2025-04-08 13:05
foldr.js	1.47 KB	-rw-r--r--	2025-04-08 13:05
forEach.js	3.93 KB	-rw-r--r--	2025-04-08 13:05
forEachLimit.js	1.75 KB	-rw-r--r--	2025-04-08 13:05
forEachOf.js	5.61 KB	-rw-r--r--	2025-04-08 13:05
forEachOfLimit.js	1.6 KB	-rw-r--r--	2025-04-08 13:05
forEachOfSeries.js	1.3 KB	-rw-r--r--	2025-04-08 13:05
forEachSeries.js	1.54 KB	-rw-r--r--	2025-04-08 13:05
forever.js	2.07 KB	-rw-r--r--	2025-04-08 13:05
groupBy.js	3.51 KB	-rw-r--r--	2025-04-08 13:05
groupByLimit.js	2.39 KB	-rw-r--r--	2025-04-08 13:05
groupBySeries.js	1.3 KB	-rw-r--r--	2025-04-08 13:05
index.js	19.47 KB	-rw-r--r--	2025-04-08 13:05
inject.js	4.76 KB	-rw-r--r--	2025-04-08 13:05
log.js	1.17 KB	-rw-r--r--	2025-04-08 13:05
map.js	4.49 KB	-rw-r--r--	2025-04-08 13:05
mapLimit.js	1.58 KB	-rw-r--r--	2025-04-08 13:05
mapSeries.js	1.48 KB	-rw-r--r--	2025-04-08 13:05
mapValues.js	4.48 KB	-rw-r--r--	2025-04-08 13:05
mapValuesLimit.js	2.07 KB	-rw-r--r--	2025-04-08 13:05
mapValuesSeries.js	1.35 KB	-rw-r--r--	2025-04-08 13:05
memoize.js	3 KB	-rw-r--r--	2025-04-08 13:05
nextTick.js	1.44 KB	-rw-r--r--	2025-04-08 13:05
package.json	2.15 KB	-rw-r--r--	2025-04-08 13:05
parallel.js	5.44 KB	-rw-r--r--	2025-04-08 13:05
parallelLimit.js	1.48 KB	-rw-r--r--	2025-04-08 13:05
priorityQueue.js	1.41 KB	-rw-r--r--	2025-04-08 13:05
queue.js	626 B	-rw-r--r--	2025-04-08 13:05
race.js	2.08 KB	-rw-r--r--	2025-04-08 13:05
reduce.js	4.76 KB	-rw-r--r--	2025-04-08 13:05
reduceRight.js	1.47 KB	-rw-r--r--	2025-04-08 13:05
reflect.js	2.21 KB	-rw-r--r--	2025-04-08 13:05
reflectAll.js	2.39 KB	-rw-r--r--	2025-04-08 13:05
reject.js	2.61 KB	-rw-r--r--	2025-04-08 13:05
rejectLimit.js	1.54 KB	-rw-r--r--	2025-04-08 13:05
rejectSeries.js	1.44 KB	-rw-r--r--	2025-04-08 13:05
retry.js	5.39 KB	-rw-r--r--	2025-04-08 13:05
retryable.js	2.48 KB	-rw-r--r--	2025-04-08 13:05
select.js	2.83 KB	-rw-r--r--	2025-04-08 13:05
selectLimit.js	1.62 KB	-rw-r--r--	2025-04-08 13:05
selectSeries.js	1.51 KB	-rw-r--r--	2025-04-08 13:05
seq.js	2.59 KB	-rw-r--r--	2025-04-08 13:05
series.js	5.69 KB	-rw-r--r--	2025-04-08 13:05
setImmediate.js	1.36 KB	-rw-r--r--	2025-04-08 13:05
some.js	3.71 KB	-rw-r--r--	2025-04-08 13:05
someLimit.js	1.74 KB	-rw-r--r--	2025-04-08 13:05
someSeries.js	1.64 KB	-rw-r--r--	2025-04-08 13:05
sortBy.js	6.06 KB	-rw-r--r--	2025-04-08 13:05
timeout.js	2.69 KB	-rw-r--r--	2025-04-08 13:05
times.js	1.45 KB	-rw-r--r--	2025-04-08 13:05
timesLimit.js	1.42 KB	-rw-r--r--	2025-04-08 13:05
timesSeries.js	1.04 KB	-rw-r--r--	2025-04-08 13:05
transform.js	5.43 KB	-rw-r--r--	2025-04-08 13:05
tryEach.js	2.48 KB	-rw-r--r--	2025-04-08 13:05
unmemoize.js	665 B	-rw-r--r--	2025-04-08 13:05
until.js	2.03 KB	-rw-r--r--	2025-04-08 13:05
waterfall.js	3.13 KB	-rw-r--r--	2025-04-08 13:05
whilst.js	2.28 KB	-rw-r--r--	2025-04-08 13:05
wrapSync.js	3.67 KB	-rw-r--r--	2025-04-08 13:05

Rename

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.default = memoize;

var _setImmediate = require('./internal/setImmediate.js');

var _setImmediate2 = _interopRequireDefault(_setImmediate);

var _initialParams = require('./internal/initialParams.js');

var _initialParams2 = _interopRequireDefault(_initialParams);

var _wrapAsync = require('./internal/wrapAsync.js');

var _wrapAsync2 = _interopRequireDefault(_wrapAsync);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Caches the results of an async function. When creating a hash to store
 * function results against, the callback is omitted from the hash and an
 * optional hash function can be used.
 *
 * **Note: if the async function errs, the result will not be cached and
 * subsequent calls will call the wrapped function.**
 *
 * If no hash function is specified, the first argument is used as a hash key,
 * which may work reasonably if it is a string or a data type that converts to a
 * distinct string. Note that objects and arrays will not behave reasonably.
 * Neither will cases where the other arguments are significant. In such cases,
 * specify your own hash function.
 *
 * The cache of results is exposed as the `memo` property of the function
 * returned by `memoize`.
 *
 * @name memoize
 * @static
 * @memberOf module:Utils
 * @method
 * @category Util
 * @param {AsyncFunction} fn - The async function to proxy and cache results from.
 * @param {Function} hasher - An optional function for generating a custom hash
 * for storing results. It has all the arguments applied to it apart from the
 * callback, and must be synchronous.
 * @returns {AsyncFunction} a memoized version of `fn`
 * @example
 *
 * var slow_fn = function(name, callback) {
 *     // do something
 *     callback(null, result);
 * };
 * var fn = async.memoize(slow_fn);
 *
 * // fn can now be used as if it were slow_fn
 * fn('some name', function() {
 *     // callback
 * });
 */
function memoize(fn, hasher = v => v) {
    var memo = Object.create(null);
    var queues = Object.create(null);
    var _fn = (0, _wrapAsync2.default)(fn);
    var memoized = (0, _initialParams2.default)((args, callback) => {
        var key = hasher(...args);
        if (key in memo) {
            (0, _setImmediate2.default)(() => callback(null, ...memo[key]));
        } else if (key in queues) {
            queues[key].push(callback);
        } else {
            queues[key] = [callback];
            _fn(...args, (err, ...resultArgs) => {
                // #1465 don't memoize if an error occurred
                if (!err) {
                    memo[key] = resultArgs;
                }
                var q = queues[key];
                delete queues[key];
                for (var i = 0, l = q.length; i < l; i++) {
                    q[i](err, ...resultArgs);
                }
            });
        }
    });
    memoized.memo = memo;
    memoized.unmemoized = fn;
    return memoized;
}
module.exports = exports.default;