Re: [COMMITTERS] pgsql: Fix breakage from earlier plperl fix.

On 01/05/2012 10:59 PM, Alex Hunsaker wrote:
> After further digging I found it chokes on any non scalar (IOW any
> reference). I attached a simple c program that I tested with 5.8.9,
> 5.10.1, 5.12.4 and 5.14.2 (for those who did not know about it,
> perlbrew made testing across all those perls relatively painless).
>
> PFA that copies if its readonly and its not a scalar.
>
> I didn't bother adding regression tests-- should I have?

[redirecting to -hackers]


I have several questions.

1. How much are we actually saving here? newSVsv() ought to be pretty 
cheap, no? I imagine it's pretty heavily used inside the interpreter.

2. Unless I'm insufficiently caffeinated right now, there's something 
wrong with this logic:

!     if (SvREADONLY(sv)&&
!             (type != SVt_IV ||
!             type != SVt_NV ||
!             type != SVt_PV))

3. The above is in any case almost certainly insufficient, because in my tests a typeglob didn't trigger SvREADONLY(),
butdid cause a crash.
 


And yes, we should possibly add a regression test or two. Of course, we can't use the cause of the original complaint
($^V)in them, though. 
 

cheers

andrew