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- #ifndef Py_NODE_H
- #define Py_NODE_H
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- /* Parse tree node interface */
-
- typedef struct _node {
- short n_type;
- char *n_str;
- short n_lineno;
- short n_nchildren;
- struct _node *n_child;
- } node;
-
- extern DL_IMPORT(node *) PyNode_New Py_PROTO((int type));
- extern DL_IMPORT(node *) PyNode_AddChild Py_PROTO((node *n, int type, char *str, int lineno));
- extern DL_IMPORT(void) PyNode_Free Py_PROTO((node *n));
-
- /* Node access functions */
- #define NCH(n) ((n)->n_nchildren)
- #define CHILD(n, i) (&(n)->n_child[i])
- #define TYPE(n) ((n)->n_type)
- #define STR(n) ((n)->n_str)
-
- /* Assert that the type of a node is what we expect */
- #ifndef Py_DEBUG
- #define REQ(n, type) { /*pass*/ ; }
- #else
- #define REQ(n, type) \
- { if (TYPE(n) != (type)) { \
- fprintf(stderr, "FATAL: node type %d, required %d\n", \
- TYPE(n), type); \
- abort(); \
- } }
- #endif
-
- extern DL_IMPORT(void) PyNode_ListTree Py_PROTO((node *));
-
- #ifdef __cplusplus
- }
- #endif
- #endif /* !Py_NODE_H */
-