Method set

common/src/util/lru-cache.ts:36–52

* Adds or updates an item in the cache. If the cache exceeds maxSize, * the least recently used item is evicted. * @param key The key of the item to set. * @param value The value to associate with the key.

(key: K, value: V)

   * @param value The value to associate with the key.
   */
  set(key: K, value: V): void {
    // If key already exists, delete it first to update its position
    if (this.cache.has(key)) {
      this.cache.delete(key)
    }
    // Check if cache is full before adding the new item
    else if (this.cache.size >= this.maxSize) {
      // Evict the least recently used item (the first item in the Map's iteration order)
      const oldestKey = this.cache.keys().next().value
      if (oldestKey !== undefined) {
        // Should always be defined if size >= maxSize > 0
        this.cache.delete(oldestKey)
      }
    }
    // Add the new item (or re-add the updated item)
    this.cache.set(key, value)
  }

  /**
   * Returns the current number of items in the cache.