Method readCached

packager/src/node-haste/Module.js:342–351

* Same as `readFresh`, but reads from the cache instead of transforming * the file from source. This has the benefit of being synchronous. As a * result it is possible to read many cached Module in a row, synchronously.

(transformOptions: TransformOptions)

   * result it is possible to read many cached Module in a row, synchronously.
   */
  readCached(transformOptions: TransformOptions): CachedReadResult {
    const key = stableObjectHash(transformOptions || {});
    let result = this._readResultsByOptionsKey.get(key);
    if (result != null) {
      return result;
    }
    result = this._readFromTransformCache(transformOptions, key);
    this._readResultsByOptionsKey.set(key, result);
    return result;
  }

  /**
   * Read again from the TransformCache, on disk. `readCached` should be favored