ref: d7684982e83e8ec333df07d9910deefb70724979
dir: /sys/src/cmd/python/Include/node.h/
/* Parse tree node interface */
#ifndef Py_NODE_H
#define Py_NODE_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _node {
short n_type;
char *n_str;
int n_lineno;
int n_col_offset;
int n_nchildren;
struct _node *n_child;
} node;
PyAPI_FUNC(node *) PyNode_New(int type);
PyAPI_FUNC(int) PyNode_AddChild(node *n, int type,
char *str, int lineno, int col_offset);
PyAPI_FUNC(void) PyNode_Free(node *n);
/* Node access functions */
#define NCH(n) ((n)->n_nchildren)
#define CHILD(n, i) (&(n)->n_child[i])
#define RCHILD(n, i) (CHILD(n, NCH(n) + i))
#define TYPE(n) ((n)->n_type)
#define STR(n) ((n)->n_str)
/* Assert that the type of a node is what we expect */
#define REQ(n, type) assert(TYPE(n) == (type))
PyAPI_FUNC(void) PyNode_ListTree(node *);
#ifdef __cplusplus
}
#endif
#endif /* !Py_NODE_H */