Re: Re: RC1, instanceof?

On Tue, 09 Aug 2005 14:31:08 +0800 alan@akbkhome.com (Alan Knowles) wrote: > On Mon, 2005-08-08 at 23:08 -0700, Andi Gutmans wrote: > > You are wrong because __autoload() *is* called and you can load > > the class on the-fly. The only problem is if the class does not > > exist in your code base, in which case, your application should > > blow up! > > The basic point is that is_a() provided negative testing of > non-existant classes > if (!is_a($obj, "SomeRarelyUsedClass")) { .... > > instance_of does not, and can not, at present. > > This technique is already frequently used to cope with lazy > loaded code, which even with cached code compilers, is pretty > damn efficient in a scripted language (less IO operations, less > parsing, less memory...) > > It is not about the fact we 'can' load the class, but that we dont > 'want' to load the class.. - it's a waste of resources, memory, > cpu etc. just for the sake of CS perfection.. > > Last time I looked PHP was about getting thing done efficiently, > not about giving your university professor a woody... ;) That's my point. The autoload magic (crap? :)) is not in cause here. If you _test_ something, you do not expect the test operator to abort your execution (fatal error). Guys, you are just making PHP more compiled-like. It's a bad idea, in my opinion. --Pierre