Front page | perl.perl5.porters |
Postings from February 2012
Father Chrysostomos via RT wrote: >On Thu Feb 02 10:51:50 2012, zefram@fysh.org wrote: >> Sounds like it's more fundamentally broken if \$foo doesn't give a >> consistent result. I'll add that to the test suite. > >The test suite is already testing for that, Only by accident, and it only noticed when MAD made it worse. I've now got explicit tests for referential identity, which unpatched L:V fails on any threading Perl (doesn't have to be MAD, doesn't have to be recent). I've also now worked around the pad-related copying by a Cunning Artifice: custom variant of the const op, which holds an RV (for which copying is OK) referencing the object, rather than holding the object directly. It's doing what the rv2sv+const combination (used for non-constant variables) does, but packaged up in a way that constant folding is willing to touch. (Yeah, custom ops are my answer to everything.) >Skip copying it when putting it in the pad (which I agree with), or in >refgen (which would have controversial side-effects)? When putting into the pad. As I have a workaround, I suggest that we leave this until 5.17, due to the risk of subtle breakage. -zeframThread Previous