这东西是splay还是spaly?

inline void splay(int x,int goal)//将x节点旋转到以goal为父亲的节点
{
    while(fa[x]!=goal)
    {
        int y=fa[x],z=fa[y];
        if(z!=goal) (son[z][1]==y)^(son[z][1]==x)?rotate(x):rotate(y);
        rotate(x);
    }
    if(!goal) root=x;
}