Function-based specialization wizardry in haxe3

Main.hx

class Main {
	static function main() {
		trace(process(12)); // 24
		trace(process("Hello world")); // HELLO WORLD
	}
	
	@:generic static function process<T>(t:T):T {
		return throw "unknown type: " + t;
	}
	
	static function process_Int(t:Int) {
		trace("I'm an integer.");
		return t * 2;
	}
	
	static function process_String(t:String) {
		trace("I'm a string.");
		return t.toUpperCase();
	}	
}