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