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  1. {"ast":null,"code":"'use strict';\n\nvar redefineAll = require('./_redefine-all');\n\nvar getWeak = require('./_meta').getWeak;\n\nvar anObject = require('./_an-object');\n\nvar isObject = require('./_is-object');\n\nvar anInstance = require('./_an-instance');\n\nvar forOf = require('./_for-of');\n\nvar createArrayMethod = require('./_array-methods');\n\nvar $has = require('./_has');\n\nvar validate = require('./_validate-collection');\n\nvar arrayFind = createArrayMethod(5);\nvar arrayFindIndex = createArrayMethod(6);\nvar id = 0; // fallback for uncaught frozen keys\n\nvar uncaughtFrozenStore = function uncaughtFrozenStore(that) {\n return that._l || (that._l = new UncaughtFrozenStore());\n};\n\nvar UncaughtFrozenStore = function UncaughtFrozenStore() {\n this.a = [];\n};\n\nvar findUncaughtFrozen = function findUncaughtFrozen(store, key) {\n return arrayFind(store.a, function (it) {\n return it[0] === key;\n });\n};\n\nUncaughtFrozenStore.prototype = {\n get: function get(key) {\n var entry = findUncaughtFrozen(this, key);\n if (entry) return entry[1];\n },\n has: function has(key) {\n return !!findUncaughtFrozen(this, key);\n },\n set: function set(key, value) {\n var entry = findUncaughtFrozen(this, key);\n if (entry) entry[1] = value;else this.a.push([key, value]);\n },\n 'delete': function _delete(key) {\n var index = arrayFindIndex(this.a, function (it) {\n return it[0] === key;\n });\n if (~index) this.a.splice(index, 1);\n return !!~index;\n }\n};\nmodule.exports = {\n getConstructor: function getConstructor(wrapper, NAME, IS_MAP, ADDER) {\n var C = wrapper(function (that, iterable) {\n anInstance(that, C, NAME, '_i');\n that._t = NAME; // collection type\n\n that._i = id++; // collection id\n\n that._l = undefined; // leak store for uncaught frozen objects\n\n if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n });\n redefineAll(C.prototype, {\n // 23.3.3.2 WeakMap.prototype.delete(key)\n // 23.4.3.3 WeakSet.prototype.delete(value)\n 'delete': function _delete(key) {\n if (!isObject(key)) return false;\n var data = getWeak(key);\n if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);\n return data && $has(data, this._i) && delete data[this._i];\n },\n // 23.3.3.4 WeakMap.prototype.has(key)\n // 23.4.3.4 WeakSet.prototype.has(value)\n has: function has(key) {\n if (!isObject(key)) return false;\n var data = getWeak(key);\n if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);\n return data && $has(data, this._i);\n }\n });\n return C;\n },\n def: function def(that, key, value) {\n var data = getWeak(anObject(key), true);\n if (data === true) uncaughtFrozenStore(that).set(key, value);else data[that._i] = value;\n return that;\n },\n ufstore: uncaughtFrozenStore\n};","map":null,"metadata":{},"sourceType":"script"}