public abstract void visit(PlusExp n);
public override void visit(PlusExp n)
{
n.e1.accept(this);
n.e2.accept(this);
Add(new Move(stack.Pop(), regRDX));
Add(new Move(stack.Pop(), regRAX));
Add(new Add(regRDX, regRAX));
stack.Push(regRAX);
}
public virtual void visit(PlusExp n)
{
// Do nothing; leave the implementation to the main class
}