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{"version":3,"names":[],"mappings":"","sources":["packages/workbox-cache-expiration/browser.mjs"],"sourcesContent":["this.workbox = this.workbox || {};\nthis.workbox.expiration = (function (exports,DBWrapper_mjs,WorkboxError_mjs,assert_mjs,logger_mjs,cacheNames_mjs,index_mjs) {\n 'use strict';\n\n try {\n self.workbox.v['workbox:cache-expiration:3.6.3'] = 1;\n } catch (e) {} // eslint-disable-line\n\n /*\n Copyright 2017 Google Inc.\n\n Licensed under the Apache License, Version 2.0 (the \"License\");\n you may not use this file except in compliance with the License.\n You may obtain a copy of the License at\n\n https://www.apache.org/licenses/LICENSE-2.0\n\n Unless required by applicable law or agreed to in writing, software\n distributed under the License is distributed on an \"AS IS\" BASIS,\n WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n See the License for the specific language governing permissions and\n limitations under the License.\n */\n\n const URL_KEY = 'url';\n const TIMESTAMP_KEY = 'timestamp';\n\n /**\n * Returns the timestamp model.\n *\n * @private\n */\n class CacheTimestampsModel {\n /**\n *\n * @param {string} cacheName\n *\n * @private\n */\n constructor(cacheName) {\n // TODO Check cacheName\n\n this._cacheName = cacheName;\n this._storeName = cacheName;\n\n this._db = new DBWrapper_mjs.DBWrapper(this._cacheName, 2, {\n onupgradeneeded: evt => this._handleUpgrade(evt)\n });\n }\n\n /**\n * Should perform an upgrade of indexedDB.\n *\n * @param {Event} evt\n *\n * @private\n */\n _handleUpgrade(evt) {\n const db = evt.target.result;\n if (evt.oldVersion < 2) {\n // Remove old databases.\n if (db.objectStoreNames.contains('workbox-cache-expiration')) {\n db.deleteObjectStore('workbox-cache-expiration');\n }\n }\n\n db.createObjectStore(this._storeName, { keyPath: URL_KEY }).createIndex(TIMESTAMP_KEY, TIMESTAMP_KEY, { unique: false });\n }\n\n /**\n * @param {string} url\n * @param {number} timestamp\n *\n * @private\n */\n setTimestamp(url, timestamp) {\n var _this = this;\n\n return babelHelpers.asyncToGenerator(function* () {\n yield _this._db.put(_this._storeName, {\n [URL_KEY]: new URL(url, location).href,\n [TIMESTAMP_KEY]: timestamp\n });\n })();\n }\n\n /**\n * Get all of the timestamps in the indexedDB.\n *\n * @return {Array<Objects>}\n *\n * @private\n */\n getAllTimestamps() {\n var _this2 = this;\n\n return babelHelpers.asyncToGenerator(function* () {\n return yield _this2._db.getAllMatching(_this2._storeName, {\n index: TIMESTAMP_KEY\n });\n })();\n }\n\n /**\n * Returns the timestamp stored for a given URL.\n *\n * @param {string} url\n * @return {number}\n *\n * @private\n */\n getTimestamp(url) {\n var _this3 = this;\n\n return babelHelpers.asyncToGenerator(function* () {\n const timestampObject = yield _this3._db.get(_this3._storeName, url);\n return timestampObject.timestamp;\n })();\n }\n\n /**\n * @param {string} url\n *\n * @private\n */\n deleteUrl(url) {\n var _this4 = this;\n\n return babelHelpers.asyncToGenerator(function* () {\n yield _this4._db.delete(_this4._storeName, new URL(url, location).href);\n })();\n }\n\n /**\n * Removes the underlying IndexedDB object store entirely.\n */\n delete() {\n var _this5 = this;\n\n return babelHelpers.asyncToGenerator(function* () {\n yield _this5._db.deleteDatabase();\n _this5._db = null;\n })();\n }\n }\n\n /*\n Copyright 2017 Google Inc.\n\n Licensed under the Apache License, Version 2.0 (the \"License\");\n you may not use this file except in compliance with the License.\n You may obtain a copy
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