Niko Matsakis

Does Ruby have any equivalent to Python's __slots__? What about other dynamic languages?

@nikomatsakis Does __slots__ have actual semantic impact, or just performance impact?

@samth I believe objects with slots are "sealed" (in the js sense)

@nikomatsakis @samth yes, they are. Slots are a mess though, almost never what one wants. (and worse on the implementation level)

@cfbolz @samth I'm not saying I want to use them, just researching related work on schemes for saving memory with many small objects ...

@nikomatsakis @samth only language level approaches? Or also VM level? On the VM level there are a lot.

@cfbolz @samth both

@nikomatsakis @samth there's object inlining http://ssw.jku.at/Research/Papers/Wimmer08PhD/ …