November 26
  • rich pattern matching
    • in data structures
    • function overloading with arg patterns and arbitrary guards
  • bitfield expressions and matching
    • (arbitrary bits length from 1 to 64+ and endianness)
  • non-preemptive memory-isolated coroutines scheduled over generic OS threads
    • async non-blocking message passing
    • fault and restart mechanics with supervisors tree
  • clustering facilities
    • across isolated OS processes
    • over IP networks
      • (or at least at hardware level, eth100+ with/without RDMA)

Is any of this features too complex to implement or totally does not match with D lang computing model or compiler architecture, to not whine about adding at least a few of them into the D3?