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gerrit-public.fairphone.software / platform / external / python / cpython3 / bb40dc48928269d3f60e60e0642b56ecfca2913c / . / Include / node.h
blob: df6e5186d35f848deaa766ba1d27223549186270 [file] [log] [blame]
Guido van Rossumf70e43a1991-02-19 12:39:46 +0000[diff] [blame]1
Guido van Rossum85a5fbb1990-10-14 12:07:46 +0000[diff] [blame]2/* Parse tree node interface */
3
Fred Drake5eb6d4e2000-07-08 23:37:28 +0000[diff] [blame]4#ifndef Py_NODE_H
5#define Py_NODE_H
6#ifdef __cplusplus
7extern "C" {
8#endif
9
Guido van Rossum85a5fbb1990-10-14 12:07:46 +0000[diff] [blame]10typedef struct _node {
Fred Drake5eb6d4e2000-07-08 23:37:28 +0000[diff] [blame]11 short n_type;
12 char *n_str;
Fred Drakeef8ace32000-08-24 00:32:09 +0000[diff] [blame]13 int n_lineno;
14 int n_nchildren;
Fred Drake5eb6d4e2000-07-08 23:37:28 +0000[diff] [blame]15 struct _node *n_child;
Guido van Rossum85a5fbb1990-10-14 12:07:46 +0000[diff] [blame]16} node;
17
Fred Drake5eb6d4e2000-07-08 23:37:28 +0000[diff] [blame]18extern DL_IMPORT(node *) PyNode_New(int type);
19extern DL_IMPORT(int) PyNode_AddChild(node *n, int type,
20 char *str, int lineno);
21extern DL_IMPORT(void) PyNode_Free(node *n);
Guido van Rossum85a5fbb1990-10-14 12:07:46 +0000[diff] [blame]22
23/* Node access functions */
24#define NCH(n) ((n)->n_nchildren)
25#define CHILD(n, i) (&(n)->n_child[i])
26#define TYPE(n) ((n)->n_type)
27#define STR(n) ((n)->n_str)
28
29/* Assert that the type of a node is what we expect */
Guido van Rossum408027e1996-12-30 16:17:54 +0000[diff] [blame]30#ifndef Py_DEBUG
Guido van Rossum85a5fbb1990-10-14 12:07:46 +0000[diff] [blame]31#define REQ(n, type) { /*pass*/ ; }
32#else
33#define REQ(n, type) \
34 { if (TYPE(n) != (type)) { \
Fred Drake5eb6d4e2000-07-08 23:37:28 +0000[diff] [blame]35 fprintf(stderr, "FATAL: node type %d, required %d\n", \
36 TYPE(n), type); \
37 abort(); \
Guido van Rossum85a5fbb1990-10-14 12:07:46 +0000[diff] [blame]38 } }
39#endif
Guido van Rossum3f5da241990-12-20 15:06:42 +0000[diff] [blame]40
Fred Drake5eb6d4e2000-07-08 23:37:28 +0000[diff] [blame]41extern DL_IMPORT(void) PyNode_ListTree(node *);
Guido van Rossuma3309961993-07-28 09:05:47 +0000[diff] [blame]42
43#ifdef __cplusplus
44}
45#endif
46#endif /* !Py_NODE_H */