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Name	Size	Permission	Date
dist	[ DIR ]	drwxr-xr-x	2022-04-21 14:27
internal	[ DIR ]	drwxr-xr-x	2022-04-21 14:27
CHANGELOG.md	28.59 KB	-rw-r--r--	2022-04-21 14:24
LICENSE	1.04 KB	-rw-r--r--	2022-04-21 14:24
README.md	2.48 KB	-rw-r--r--	2022-04-21 14:24
all.js	1.64 KB	-rw-r--r--	2022-04-21 14:24
allLimit.js	1.51 KB	-rw-r--r--	2022-04-21 14:24
allSeries.js	1.25 KB	-rw-r--r--	2022-04-21 14:24
any.js	1.72 KB	-rw-r--r--	2022-04-21 14:24
anyLimit.js	1.55 KB	-rw-r--r--	2022-04-21 14:24
anySeries.js	1.28 KB	-rw-r--r--	2022-04-21 14:24
apply.js	1.8 KB	-rw-r--r--	2022-04-21 14:24
applyEach.js	1.74 KB	-rw-r--r--	2022-04-21 14:24
applyEachSeries.js	1.25 KB	-rw-r--r--	2022-04-21 14:24
asyncify.js	3.42 KB	-rw-r--r--	2022-04-21 14:24
auto.js	9.61 KB	-rw-r--r--	2022-04-21 14:24
autoInject.js	6.33 KB	-rw-r--r--	2022-04-21 14:24
bower.json	245 B	-rw-r--r--	2022-04-21 14:24
cargo.js	4.54 KB	-rw-r--r--	2022-04-21 14:24
compose.js	1.52 KB	-rw-r--r--	2022-04-21 14:24
concat.js	1.55 KB	-rw-r--r--	2022-04-21 14:24
concatLimit.js	2.11 KB	-rw-r--r--	2022-04-21 14:24
concatSeries.js	1.24 KB	-rw-r--r--	2022-04-21 14:24
constant.js	1.72 KB	-rw-r--r--	2022-04-21 14:24
detect.js	2.16 KB	-rw-r--r--	2022-04-21 14:24
detectLimit.js	1.72 KB	-rw-r--r--	2022-04-21 14:24
detectSeries.js	1.32 KB	-rw-r--r--	2022-04-21 14:24
dir.js	1.26 KB	-rw-r--r--	2022-04-21 14:24
doDuring.js	2.13 KB	-rw-r--r--	2022-04-21 14:24
doUntil.js	1.34 KB	-rw-r--r--	2022-04-21 14:24
doWhilst.js	2.02 KB	-rw-r--r--	2022-04-21 14:24
during.js	2.15 KB	-rw-r--r--	2022-04-21 14:24
each.js	2.77 KB	-rw-r--r--	2022-04-21 14:24
eachLimit.js	1.53 KB	-rw-r--r--	2022-04-21 14:24
eachOf.js	3.29 KB	-rw-r--r--	2022-04-21 14:24
eachOfLimit.js	1.38 KB	-rw-r--r--	2022-04-21 14:24
eachOfSeries.js	1.11 KB	-rw-r--r--	2022-04-21 14:24
eachSeries.js	1.18 KB	-rw-r--r--	2022-04-21 14:24
ensureAsync.js	2.46 KB	-rw-r--r--	2022-04-21 14:24
every.js	1.64 KB	-rw-r--r--	2022-04-21 14:24
everyLimit.js	1.51 KB	-rw-r--r--	2022-04-21 14:24
everySeries.js	1.25 KB	-rw-r--r--	2022-04-21 14:24
filter.js	1.49 KB	-rw-r--r--	2022-04-21 14:24
filterLimit.js	1.31 KB	-rw-r--r--	2022-04-21 14:24
filterSeries.js	1.21 KB	-rw-r--r--	2022-04-21 14:24
find.js	2.16 KB	-rw-r--r--	2022-04-21 14:24
findLimit.js	1.72 KB	-rw-r--r--	2022-04-21 14:24
findSeries.js	1.32 KB	-rw-r--r--	2022-04-21 14:24
foldl.js	2.61 KB	-rw-r--r--	2022-04-21 14:24
foldr.js	1.5 KB	-rw-r--r--	2022-04-21 14:24
forEach.js	2.77 KB	-rw-r--r--	2022-04-21 14:24
forEachLimit.js	1.53 KB	-rw-r--r--	2022-04-21 14:24
forEachOf.js	3.29 KB	-rw-r--r--	2022-04-21 14:24
forEachOfLimit.js	1.38 KB	-rw-r--r--	2022-04-21 14:24
forEachOfSeries.js	1.11 KB	-rw-r--r--	2022-04-21 14:24
forEachSeries.js	1.18 KB	-rw-r--r--	2022-04-21 14:24
forever.js	1.9 KB	-rw-r--r--	2022-04-21 14:24
groupBy.js	2.08 KB	-rw-r--r--	2022-04-21 14:24
groupByLimit.js	2.32 KB	-rw-r--r--	2022-04-21 14:24
groupBySeries.js	1.32 KB	-rw-r--r--	2022-04-21 14:24
index.js	19.05 KB	-rw-r--r--	2022-04-21 14:24
inject.js	2.61 KB	-rw-r--r--	2022-04-21 14:24
log.js	1.17 KB	-rw-r--r--	2022-04-21 14:24
map.js	2.03 KB	-rw-r--r--	2022-04-21 14:24
mapLimit.js	1.28 KB	-rw-r--r--	2022-04-21 14:24
mapSeries.js	1.18 KB	-rw-r--r--	2022-04-21 14:24
mapValues.js	2.19 KB	-rw-r--r--	2022-04-21 14:24
mapValuesLimit.js	1.99 KB	-rw-r--r--	2022-04-21 14:24
mapValuesSeries.js	1.3 KB	-rw-r--r--	2022-04-21 14:24
memoize.js	3.16 KB	-rw-r--r--	2022-04-21 14:24
nextTick.js	1.41 KB	-rw-r--r--	2022-04-21 14:24
package.json	2.36 KB	-rw-r--r--	2022-04-21 14:24
parallel.js	3.03 KB	-rw-r--r--	2022-04-21 14:24
parallelLimit.js	1.39 KB	-rw-r--r--	2022-04-21 14:24
priorityQueue.js	3.03 KB	-rw-r--r--	2022-04-21 14:24
queue.js	5.72 KB	-rw-r--r--	2022-04-21 14:24
race.js	2.11 KB	-rw-r--r--	2022-04-21 14:24
reduce.js	2.61 KB	-rw-r--r--	2022-04-21 14:24
reduceRight.js	1.5 KB	-rw-r--r--	2022-04-21 14:24
reflect.js	2.32 KB	-rw-r--r--	2022-04-21 14:24
reflectAll.js	2.73 KB	-rw-r--r--	2022-04-21 14:24
reject.js	1.41 KB	-rw-r--r--	2022-04-21 14:24
rejectLimit.js	1.24 KB	-rw-r--r--	2022-04-21 14:24
rejectSeries.js	1.13 KB	-rw-r--r--	2022-04-21 14:24
retry.js	5.31 KB	-rw-r--r--	2022-04-21 14:24
retryable.js	1.98 KB	-rw-r--r--	2022-04-21 14:24
select.js	1.49 KB	-rw-r--r--	2022-04-21 14:24
selectLimit.js	1.31 KB	-rw-r--r--	2022-04-21 14:24
selectSeries.js	1.21 KB	-rw-r--r--	2022-04-21 14:24
seq.js	2.92 KB	-rw-r--r--	2022-04-21 14:24
series.js	2.87 KB	-rw-r--r--	2022-04-21 14:24
setImmediate.js	1.36 KB	-rw-r--r--	2022-04-21 14:24
some.js	1.72 KB	-rw-r--r--	2022-04-21 14:24
someLimit.js	1.55 KB	-rw-r--r--	2022-04-21 14:24
someSeries.js	1.28 KB	-rw-r--r--	2022-04-21 14:24
sortBy.js	2.76 KB	-rw-r--r--	2022-04-21 14:24
timeout.js	2.71 KB	-rw-r--r--	2022-04-21 14:24
times.js	1.42 KB	-rw-r--r--	2022-04-21 14:24
timesLimit.js	1.36 KB	-rw-r--r--	2022-04-21 14:24
timesSeries.js	1021 B	-rw-r--r--	2022-04-21 14:24
transform.js	2.65 KB	-rw-r--r--	2022-04-21 14:24
tryEach.js	2.5 KB	-rw-r--r--	2022-04-21 14:24
unmemoize.js	681 B	-rw-r--r--	2022-04-21 14:24
until.js	1.41 KB	-rw-r--r--	2022-04-21 14:24
waterfall.js	3.26 KB	-rw-r--r--	2022-04-21 14:24
whilst.js	2.14 KB	-rw-r--r--	2022-04-21 14:24
wrapSync.js	3.42 KB	-rw-r--r--	2022-04-21 14:24

Rename

'use strict';

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

var _identity = require('lodash/identity');

var _identity2 = _interopRequireDefault(_identity);

var _slice = require('./internal/slice');

var _slice2 = _interopRequireDefault(_slice);

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

var _setImmediate2 = _interopRequireDefault(_setImmediate);

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

var _initialParams2 = _interopRequireDefault(_initialParams);

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

var _wrapAsync2 = _interopRequireDefault(_wrapAsync);

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

function has(obj, key) {
    return key in 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.
 *
 * 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) {
    var memo = Object.create(null);
    var queues = Object.create(null);
    hasher = hasher || _identity2.default;
    var _fn = (0, _wrapAsync2.default)(fn);
    var memoized = (0, _initialParams2.default)(function memoized(args, callback) {
        var key = hasher.apply(null, args);
        if (has(memo, key)) {
            (0, _setImmediate2.default)(function () {
                callback.apply(null, memo[key]);
            });
        } else if (has(queues, key)) {
            queues[key].push(callback);
        } else {
            queues[key] = [callback];
            _fn.apply(null, args.concat(function () /*args*/{
                var args = (0, _slice2.default)(arguments);
                memo[key] = args;
                var q = queues[key];
                delete queues[key];
                for (var i = 0, l = q.length; i < l; i++) {
                    q[i].apply(null, args);
                }
            }));
        }
    });
    memoized.memo = memo;
    memoized.unmemoized = fn;
    return memoized;
}
module.exports = exports['default'];