Re: How to add pseudo vector types

[Clément Pit-Claudel]

On 7/20/21 1:36 PM, Stefan Monnier wrote:
>>> If we copy the buffer's content to a freshly malloc area before passing
>>> that to TS, then there should be no problem running TS in a separate
>>> concurrent thread, indeed.
>> Except that the results will not be useful, since they won't apply to
>> the original buffer if it is changed.
> 
> Not true: we just have to keep track of the list of changes (as Yuan's
> patch does), then pass it to tree-sitter to get a tree up-to-date w.r.t
> the current content of the buffer.
> 
>> And if the original buffer is not changed, then we do not need to run
>> the parser asynchronously.
> 
> We do:
> - because we want to do other things in the mean time
> - because we want to take advantage of the many CPU cores sitting idle.

Ah, sorry, I didn't see your message, so I sent an answer that's approximately 
equivalent.
But note that I'm not even sure we need to copy the buffer.  Of course, I agree 
that it makes a lot of things a lot simpler.