Method shift

src/cmap/wire_protocol/responses.ts:306–325

(options: OnDemandDocumentDeserializeOptions)

  }

  public shift(options: OnDemandDocumentDeserializeOptions): any {
    if (this.iterated >= this.batchSize) {
      return null;
    }

    const result = this.batch.get(this.iterated, BSONType.object, true) ?? null;
    const encryptedResult = this.encryptedBatch?.get(this.iterated, BSONType.object, true) ?? null;

    this.iterated += 1;

    if (options?.raw) {
      return result.toBytes();
    } else {
      const object = result.toObject(options);
      if (encryptedResult) {
        decorateDecryptionResult(object, encryptedResult.toObject(options), true);
      }
      return object;
    }
  }

  public clear() {
    this.iterated = this.batchSize;