It still has this feature. In fact, is built so deep into the system it cannot be used without inline C. Smalltalk/X does not support primitives (or native met

It still has this feature. In fact, is built so deep into the system it cannot be used without inline C. Smalltalk/X does not support primitives (or native methods if you come from Java world). Instead, you use inline C to escape Smalltalk world.