Method add

lib/internal/fs/glob.js:233–242

(path, pattern)

    return val;
  }
  add(path, pattern) {
    let cache = this.#cache.get(path);
    if (!cache) {
      cache = new SafeSet();
      this.#cache.set(path, cache);
    }
    const originalSize = cache.size;
    pattern.indexes.forEach((index) => cache.add(pattern.cacheKey(index)));
    return cache.size !== originalSize + pattern.indexes.size;
  }
  seen(path, pattern, index) {
    return this.#cache.get(path)?.has(pattern.cacheKey(index));
  }