On Tue, Mar 03, 2009 at 11:01:22AM +1100, Vasily Chekalkin wrote: > Patrick R. Michaud wrote: >>> Is it feasible to catch all "Null PMC access" exceptions at the >>> top-level, promote PMCNULL to Undef (or Failure) and resume from >>> exception? >> >> Good thinking... but there's not anything to "promote" -- i.e., from an >> exception handler we wouldn't have the ability to change the register that >> has the PMCNULL. > > Ouch. Looks like '!NULLORUNDEF' subroutine which returns boolean one of > few possible variants?
No, we can clean it up better at the source than we can by spreading lots of NULLORUNDEF calls throughout the codebase. Pm
