import std.meta: AliasSeq;
enum E { a, b, c }
void handle(E e)
{
// Need label to break out of 'static foreach'
Lswitch: final switch (e)
{
static foreach (ab; AliasSeq!(E.a, E.b))
{
case ab:
handleAB();
// No comptime switch in D
static if (ab == E.a)
handleA();
else static if (ab == E.b)
handleB();
else
static assert(false, "unreachable");
break Lswitch;
}
case E.c:
handleC();
break;
}
}
Thanks! That indeed does the equivalent as the Zig code... but feels a bit pointless to do that in D, I think?
Could've done this and be as safe, but perhaps it loses the point of the article:
enum U { A, B, C }
void handle(U e)
{
with (U)
final switch (e) {
case A, B:
handleAB();
if (e == A) handleA(); else handleB();
break;
case C:
handleC();
break;
}
}
