6 ms·

That would still require dynamic dispatch of some kind.

• the_mitsuhiko 8y ago
  But it wouldn’t require a heap allocation.
  • lmm 8y ago
    Where is the proxy implementation going to go if not the heap?
    • GolDDranks 8y ago
      The proxy object would have statically known size (maximum of the size of the types it dispatches between, plus some metadata such as a vtable pointer or an enum discriminant). Now, because you know the size statically, you can store it in the stack.