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'use strict';
var $ = require('../internals/export');
var aCallable = require('../internals/a-callable');
var aMap = require('../internals/a-map');
var MapHelpers = require('../internals/map-helpers');
var get = MapHelpers.get;
var has = MapHelpers.has;
var set = MapHelpers.set;
// `Map.prototype.getOrInsertComputed` method
// https://github.com/tc39/proposal-upsert
$({ target: 'Map', proto: true, real: true }, {
getOrInsertComputed: function getOrInsertComputed(key, callbackfn) {
aMap(this);
aCallable(callbackfn);
if (has(this, key)) return get(this, key);
// CanonicalizeKeyedCollectionKey
if (key === 0 && 1 / key === -Infinity) key = 0;
var value = callbackfn(key);
set(this, key, value);
return value;
}
});