Method expand

tfjs-data/src/util/growing_ring_buffer.ts:52–68

* Doubles the capacity of the buffer.

()

   * Doubles the capacity of the buffer.
   */
  private expand() {
    const newCapacity = this.capacity * 2;
    const newData = new Array<T>(newCapacity);
    const len = this.length();

    // Rotate the buffer to start at index 0 again, since we can't just
    // allocate more space at the end.
    for (let i = 0; i < len; i++) {
      newData[i] = this.get(this.wrap(this.begin + i));
    }

    this.data = newData;
    this.capacity = newCapacity;
    this.doubledCapacity = 2 * this.capacity;
    this.begin = 0;
    this.end = len;
  }
}