Re: Efficient HV fetches without recomputing the key hash

On 5/13/26 1:42 PM, Paul "LeoNerd" Evans wrote:
> The HV API is a bit of a mess of functions. There's basically two ways
> you can look up an item out of an HV, depending on how you have your
> ...
> ...
> That really ought to
> have been a `U32 flags`, which could then be used to contain a bunch of
> different behaviours... but eh. It's a bit late now to start fixing all
> of these things...

My biggest gripe about hv_fetch and hv_store are that they expose the 
"returns NULL if hash is tied, meaning it didn't actually take ownership 
of your SV reference" behavior at every single call site.

I don't think it's too late at all to create a new HV get/set API for XS 
code, it just needs to go into ppport.h and then we get to use it 
everywhere.

-Mike C.