Does Rumple have a hart-, hart since he became the dark one?

I often wonder why the toon never brought this up. Does Rumple still have his hart-, hart of when he became the dark one, did it disappear and all his love comes from his soul kinda like when Regina's hart-, hart got stolen door Zelena but she still managed to give Henry true love's kiss and still toon love for Robin? of is it possible that he does still have his hart-, hart but it cannot be taken out of it cannot be crushed? of it can be crushed but it won't kill him and instead it makes him much much MUCH MUUUUCH meer darker and evil and powerful and that's why no one dared to take it out?