roll your own vtables

a.d

import std.meta;
import std.traits;
import std.stdio;

class Fooº {

	@Dynamic void a() {writeln(`hello from a()`);};
	@Dynamic void b() {writeln(`hello from b()`);};
	@Dynamic void c() {writeln(`hello from c()`);};

	void dispatch(string Name) {
		return DispatchTbl[Name](this);
	};

	private static immutable void function(typeof(this))[string] DispatchTbl;

	shared static this() {
		writeln(`building dispatch table ...`);
		foreach (f; getSymbolsByUDA!(typeof(this), Dynamic)) {
			DispatchTbl[__traits(identifier, f)] = Self =>
				__traits(getMember, Self, __traits(identifier, f))()
			;
		};
	};

	struct Dynamic {};
};

void main() {
	writeln(`testing ...`);

	string Name = `c`;
	(new Fooº).dispatch(Name);
};