Include/node.h

   1
   2 /* Parse tree node interface */
   3
   4 #ifndef Py_NODE_H
   5 #define Py_NODE_H
   6 #ifdef __cplusplus
   7 extern "C" {
   8 #endif
   9
  10 typedef struct _node {
  11     short               n_type;
  12     char                *n_str;
  13     int                 n_lineno;
  14     int                 n_col_offset;
  15     int                 n_nchildren;
  16     struct _node        *n_child;
  17 } node;
  18
  19 PyAPI_FUNC(node *) PyNode_New(int type);
  20 PyAPI_FUNC(int) PyNode_AddChild(node *n, int type,
  21                                       char *str, int lineno, int col_offset);
  22 PyAPI_FUNC(void) PyNode_Free(node *n);
  23
  24 /* Node access functions */
  25 #define NCH(n)          ((n)->n_nchildren)
  26
  27 #define CHILD(n, i)     (&(n)->n_child[i])
  28 #define RCHILD(n, i)    (CHILD(n, NCH(n) + i))
  29 #define TYPE(n)         ((n)->n_type)
  30 #define STR(n)          ((n)->n_str)
  31
  32 /* Assert that the type of a node is what we expect */
  33 #define REQ(n, type) assert(TYPE(n) == (type))
  34
  35 PyAPI_FUNC(void) PyNode_ListTree(node *);
  36
  37 #ifdef __cplusplus
  38 }
  39 #endif
  40 #endif /* !Py_NODE_H */