This is not how Javascript works. There is no way to stage changes and only
later commit them. Try-catch is not a transactional block.
On Monday, October 24, 2016 at 9:36:06 AM UTC+2, Jane Chen wrote:
>
> Embedding v8 5.3. In my embedding application, the user can make some
> updates and the updates are committed as one transaction when the script
> exits. When one statement throws an error which is caught by a try-catch
> block, the scope of the try-catch block determines the aborted changes.
> Here's an example:
>
> try {
> update1();
> update2();
> catch(err) {}
>
> In the above example, if update2 throws an exception, the changes made by
> update1 should be aborted.
>
> In contrast, in the following script, if update2 throws an exception, the
> changes made by update1 should be committed:
>
> update1();
> try {
> update2();
> catch(err) {}
>
> Does v8 provide any way to register for user-specified try-catch blocks
> for embedders to handle this use case? I tried TryCatch.SetVerbose, but
> apparently it's not meant for this.
>
> Thanks in advance.
>
>
>
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