On Sunday, 30 March 2014 at 01:04:27 UTC, Walter Bright wrote:
On 3/29/2014 5:57 PM, deadalnix wrote:
All is in the title.

This is becoming increasingly the norm in new languages. It is much better in term of performances (it avoid cascaded loads to call methods, which can be
really costly on modern CPUs), make object themselves smaller.

Would implementing them that way break D code ? What would be the extent of the
breakage ?

D already has phat pointers - that's what delegates are. I'm curious how the scheme you propose is different?

I'm talking about interface here. The way they are implemented in most new language is via a struct that contains:
 - pointer to the object
 - pointer to vtable

That way to don't make object bigger when they implement an interface, and you don't need cascaded load to call methods.

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