} CClassNode;

typedef struct {

struct _Node* target;

int lower;

int upper;

#define NST_ADDR_FIXED (1<<9)

#define NST_NAMED_GROUP (1<<10)

#define NST_NAME_REF (1<<11)

#define SET_EFFECT_STATUS(node,f) (node)->u.effect.state |= (f)

#define CLEAR_EFFECT_STATUS(node,f) (node)->u.effect.state &= ~(f)

#define IS_CALL_RECURSION(cn) (((cn)->state & NST_RECURSION) != 0)

#define IS_CALL_NAME_REF(cn) (((cn)->state & NST_NAME_REF) != 0)

#define IS_BACKREF_NAME_REF(bn) (((bn)->state & NST_NAME_REF) != 0)

typedef struct {

int state;