Function cacheEntry

packages/compiler-cli/src/perform_watch.ts:160–168

(fileName: string)

  return {close, ready: (cb) => readyPromise.then(cb), firstCompileResult};

  function cacheEntry(fileName: string): CacheEntry {
    fileName = path.normalize(fileName);
    let entry = fileCache.get(fileName);
    if (!entry) {
      entry = {};
      fileCache.set(fileName, entry);
    }
    return entry;
  }

  function close() {
    fileWatcher.close();