Chris@87: 
Chris@87: /* Parse tree node interface */
Chris@87: 
Chris@87: #ifndef Py_NODE_H
Chris@87: #define Py_NODE_H
Chris@87: #ifdef __cplusplus
Chris@87: extern "C" {
Chris@87: #endif
Chris@87: 
Chris@87: typedef struct _node {
Chris@87:     short		n_type;
Chris@87:     char		*n_str;
Chris@87:     int			n_lineno;
Chris@87:     int			n_col_offset;
Chris@87:     int			n_nchildren;
Chris@87:     struct _node	*n_child;
Chris@87: } node;
Chris@87: 
Chris@87: PyAPI_FUNC(node *) PyNode_New(int type);
Chris@87: PyAPI_FUNC(int) PyNode_AddChild(node *n, int type,
Chris@87:                                       char *str, int lineno, int col_offset);
Chris@87: PyAPI_FUNC(void) PyNode_Free(node *n);
Chris@87: PyAPI_FUNC(Py_ssize_t) _PyNode_SizeOf(node *n);
Chris@87: 
Chris@87: /* Node access functions */
Chris@87: #define NCH(n)		((n)->n_nchildren)
Chris@87: 	
Chris@87: #define CHILD(n, i)	(&(n)->n_child[i])
Chris@87: #define RCHILD(n, i)	(CHILD(n, NCH(n) + i))
Chris@87: #define TYPE(n)		((n)->n_type)
Chris@87: #define STR(n)		((n)->n_str)
Chris@87: 
Chris@87: /* Assert that the type of a node is what we expect */
Chris@87: #define REQ(n, type) assert(TYPE(n) == (type))
Chris@87: 
Chris@87: PyAPI_FUNC(void) PyNode_ListTree(node *);
Chris@87: 
Chris@87: #ifdef __cplusplus
Chris@87: }
Chris@87: #endif
Chris@87: #endif /* !Py_NODE_H */