14adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao
24adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao/* Parse tree node interface */
34adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao
44adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#ifndef Py_NODE_H
54adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#define Py_NODE_H
64adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#ifdef __cplusplus
74adfde8bc82dd39f59e0445588c3e599ada477dJosh Gaoextern "C" {
84adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#endif
94adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao
104adfde8bc82dd39f59e0445588c3e599ada477dJosh Gaotypedef struct _node {
114adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao    short		n_type;
124adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao    char		*n_str;
134adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao    int			n_lineno;
144adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao    int			n_col_offset;
154adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao    int			n_nchildren;
164adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao    struct _node	*n_child;
174adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao} node;
184adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao
194adfde8bc82dd39f59e0445588c3e599ada477dJosh GaoPyAPI_FUNC(node *) PyNode_New(int type);
204adfde8bc82dd39f59e0445588c3e599ada477dJosh GaoPyAPI_FUNC(int) PyNode_AddChild(node *n, int type,
214adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao                                      char *str, int lineno, int col_offset);
224adfde8bc82dd39f59e0445588c3e599ada477dJosh GaoPyAPI_FUNC(void) PyNode_Free(node *n);
234adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#ifndef Py_LIMITED_API
244adfde8bc82dd39f59e0445588c3e599ada477dJosh GaoPyAPI_FUNC(Py_ssize_t) _PyNode_SizeOf(node *n);
254adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#endif
264adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao
274adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao/* Node access functions */
284adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#define NCH(n)		((n)->n_nchildren)
294adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao
304adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#define CHILD(n, i)	(&(n)->n_child[i])
314adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#define RCHILD(n, i)	(CHILD(n, NCH(n) + i))
324adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#define TYPE(n)		((n)->n_type)
334adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#define STR(n)		((n)->n_str)
344adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao
354adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao/* Assert that the type of a node is what we expect */
364adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#define REQ(n, type) assert(TYPE(n) == (type))
374adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao
384adfde8bc82dd39f59e0445588c3e599ada477dJosh GaoPyAPI_FUNC(void) PyNode_ListTree(node *);
394adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao
404adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#ifdef __cplusplus
414adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao}
424adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#endif
434adfde8bc82dd39f59e0445588c3e599ada477dJosh Gao#endif /* !Py_NODE_H */
44