Method getOrInsertComputed

packages/shared/src/cache-map.ts:93–101

(key: K, callback: (key: K) => V)

  }

  getOrInsertComputed(key: K, callback: (key: K) => V): V {
    if (this.cache.has(key)) {
      this.updateKeyUsage(key)
      return this.cache.get(key)!
    }
    const value = callback(key)
    this.set(key, value)
    return value
  }

  [Symbol.iterator]() {
    return this.cache[Symbol.iterator]()