bearophile Wrote: > Steven Schveighoffer: > > >You get a much higher speedup when things can be inlined than virtual vs. > >non-virtual.< > > In current D compilers virtual functions prevent inlining. This can give some > performance loss.
People seem to think that because dcollections implement interfaces, you must never store a concrete collection instance. This isn't true, you can use dcollections as concrete classes without dealing with interfaces at all, and all the functions should be inlineable (at least, they will be when I change them all to final functions). dcollections provide all of the available generic-ness that you need. Ranges, template member functions, etc. AND they also implement interfaces if that should be part of your design. I've pointed out that a good use case for passing interfaces instead of concrete classes is for dynamic libraries, where you don't want to have private member changes affect runtime code. -Steve
