I was thinking that two functions may help with static arrays of statically-known data:

import std.conv, std.stdio, std.traits;

auto staticArrayRef(Args...)() {
    static string expand() {
        string result = "Args[0]";
        foreach (i; 1 .. Args.length) {
            result ~= ", Args[" ~ to!string(i) ~ "]";
        }
        return result;
    }
    enum size_t len = Args.length;
    static CommonType!(Args)[len] result = mixin("["~expand()~"]");
    return result;
}

void main() {
    auto a = staticArrayRef!(1, 2, 3, 4.5)();
    writeln(typeof(a).stringof);
    writeln(a);
}

Essentially staticArrayRef returns a reference to a statically-initialized array with statically-known data.


Andrei