1#@!#!123s

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Filename : dev-server.js
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/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
/* globals __webpack_hash__ */
if (module.hot) {
	/** @type {undefined|string} */
	var lastHash;
	var upToDate = function upToDate() {
		return /** @type {string} */ (lastHash).indexOf(__webpack_hash__) >= 0;
	};
	var log = require("./log");
	var check = function check() {
		module.hot
			.check(true)
			.then(function (updatedModules) {
				if (!updatedModules) {
					log(
						"warning",
						"[HMR] Cannot find update. " +
							(typeof window !== "undefined"
								? "Need to do a full reload!"
								: "Please reload manually!")
					);
					log(
						"warning",
						"[HMR] (Probably because of restarting the webpack-dev-server)"
					);
					if (typeof window !== "undefined") {
						window.location.reload();
					}
					return;
				}

				if (!upToDate()) {
					check();
				}

				require("./log-apply-result")(updatedModules, updatedModules);

				if (upToDate()) {
					log("info", "[HMR] App is up to date.");
				}
			})
			.catch(function (err) {
				var status = module.hot.status();
				if (["abort", "fail"].indexOf(status) >= 0) {
					log(
						"warning",
						"[HMR] Cannot apply update. " +
							(typeof window !== "undefined"
								? "Need to do a full reload!"
								: "Please reload manually!")
					);
					log("warning", "[HMR] " + log.formatError(err));
					if (typeof window !== "undefined") {
						window.location.reload();
					}
				} else {
					log("warning", "[HMR] Update failed: " + log.formatError(err));
				}
			});
	};
	var hotEmitter = require("./emitter");
	hotEmitter.on("webpackHotUpdate", function (currentHash) {
		lastHash = currentHash;
		if (!upToDate() && module.hot.status() === "idle") {
			log("info", "[HMR] Checking for updates on the server...");
			check();
		}
	});
	log("info", "[HMR] Waiting for update signal from WDS...");
} else {
	throw new Error("[HMR] Hot Module Replacement is disabled.");
}