Method obtain

packages/core/src/Utils/Pool/Pool.ts:63–78

* 从池中获取对象 * @returns 对象实例

()

     * @returns 对象实例
     */
    public obtain(): T {
        this._stats.totalObtained++;

        if (this._objects.length > 0) {
            const obj = this._objects.pop()!;
            this._stats.size--;
            this._updateHitRate();
            this._updateMemoryUsage();
            return obj;
        }

        // 池中没有可用对象，创建新对象
        this._stats.totalCreated++;
        this._updateHitRate();
        return this._createFn();
    }

    /**
     * 释放对象回池中