Method restore

lib/cache/IdleFileCachePlugin.js:75–89

()

			{ name: PLUGIN_NAME, stage: Cache.STAGE_DISK },
			(identifier, etag, gotHandlers) => {
				const restore = () =>
					strategy.restore(identifier, etag).then((cacheEntry) => {
						if (cacheEntry === undefined) {
							gotHandlers.push((result, callback) => {
								if (result !== undefined) {
									pendingIdleTasks.set(identifier, () =>
										strategy.store(identifier, etag, result)
									);
								}
								callback();
							});
						} else {
							return cacheEntry;
						}
					});
				const pendingTask = pendingIdleTasks.get(identifier);
				if (pendingTask !== undefined) {
					pendingIdleTasks.delete(identifier);