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Postings from October 2000
Nicholas Clark wrote: > > Shouldn't tie magic be disabled when retrieving from the array > > 'underneath' a tie? Unless this is done, self-ties cannot ever work. > > That would stop A-tiedto-B-tiedto-C working, surely? > [But is A-tiedto-B-tiedto-C desirable?] I was thinking of something like: disable_magic(sv) real_sv = sv_mortalcopy(sv); enable_magic(sv); This should still allow nested magic to work, but should stop the recursion. > Is there anywhere for pp_tie to flag an object as active, so if you come > back to it via a loop (A-tiedto-A or anything more complex) it doesn't > use the tie method for a second (third (fourth (...))) trip? That seems like the only workable fix. However, I have no idea where such a flag should go, and how to 'unwind' it when the tied access has finished. Personally I'd be content just to see self-ties and tie loops made illegal. However, at the moment the position WRT the supportedness of self-ties is unclear. -- Alan BurlisonThread Previous | Thread Next