struct RNode

typedef struct RNode {
    unsigned long flags;
    char *nd_file;
    union {
	struct RNode *node;
	ID id;
	VALUE value;
	VALUE (*cfunc)(ANYARGS);
	ID *tbl;
    } u1;
    union {
	struct RNode *node;
	ID id;
	int argc;
	VALUE value;
    } u2;
    union {
	struct RNode *node;
	ID id;
	long state;
	struct global_entry *entry;
	long cnt;
	VALUE value;
    } u3;
} NODE;