1#include "Python.h"
2
3#include "code.h"
4#include "compile.h"
5#include "Python-ast.h"
6#include "symtable.h"
7
8static PyObject *
9symtable_symtable(PyObject *self, PyObject *args)
10{
11    struct symtable *st;
12    PyObject *t;
13
14    char *str;
15    char *filename;
16    char *startstr;
17    int start;
18
19    if (!PyArg_ParseTuple(args, "sss:symtable", &str, &filename,
20                          &startstr))
21        return NULL;
22    if (strcmp(startstr, "exec") == 0)
23        start = Py_file_input;
24    else if (strcmp(startstr, "eval") == 0)
25        start = Py_eval_input;
26    else if (strcmp(startstr, "single") == 0)
27        start = Py_single_input;
28    else {
29        PyErr_SetString(PyExc_ValueError,
30           "symtable() arg 3 must be 'exec' or 'eval' or 'single'");
31        return NULL;
32    }
33    st = Py_SymtableString(str, filename, start);
34    if (st == NULL)
35        return NULL;
36    t = (PyObject *)st->st_top;
37    Py_INCREF(t);
38    PyMem_Free((void *)st->st_future);
39    PySymtable_Free(st);
40    return t;
41}
42
43static PyMethodDef symtable_methods[] = {
44    {"symtable",        symtable_symtable,      METH_VARARGS,
45     PyDoc_STR("Return symbol and scope dictionaries"
46               " used internally by compiler.")},
47    {NULL,              NULL}           /* sentinel */
48};
49
50PyMODINIT_FUNC
51init_symtable(void)
52{
53    PyObject *m;
54
55    if (PyType_Ready(&PySTEntry_Type) < 0)
56        return;
57
58    m = Py_InitModule("_symtable", symtable_methods);
59    if (m == NULL)
60        return;
61    PyModule_AddIntConstant(m, "USE", USE);
62    PyModule_AddIntConstant(m, "DEF_GLOBAL", DEF_GLOBAL);
63    PyModule_AddIntConstant(m, "DEF_LOCAL", DEF_LOCAL);
64    PyModule_AddIntConstant(m, "DEF_PARAM", DEF_PARAM);
65    PyModule_AddIntConstant(m, "DEF_FREE", DEF_FREE);
66    PyModule_AddIntConstant(m, "DEF_FREE_CLASS", DEF_FREE_CLASS);
67    PyModule_AddIntConstant(m, "DEF_IMPORT", DEF_IMPORT);
68    PyModule_AddIntConstant(m, "DEF_BOUND", DEF_BOUND);
69
70    PyModule_AddIntConstant(m, "TYPE_FUNCTION", FunctionBlock);
71    PyModule_AddIntConstant(m, "TYPE_CLASS", ClassBlock);
72    PyModule_AddIntConstant(m, "TYPE_MODULE", ModuleBlock);
73
74    PyModule_AddIntConstant(m, "OPT_IMPORT_STAR", OPT_IMPORT_STAR);
75    PyModule_AddIntConstant(m, "OPT_EXEC", OPT_EXEC);
76    PyModule_AddIntConstant(m, "OPT_BARE_EXEC", OPT_BARE_EXEC);
77
78    PyModule_AddIntConstant(m, "LOCAL", LOCAL);
79    PyModule_AddIntConstant(m, "GLOBAL_EXPLICIT", GLOBAL_EXPLICIT);
80    PyModule_AddIntConstant(m, "GLOBAL_IMPLICIT", GLOBAL_IMPLICIT);
81    PyModule_AddIntConstant(m, "FREE", FREE);
82    PyModule_AddIntConstant(m, "CELL", CELL);
83
84    PyModule_AddIntConstant(m, "SCOPE_OFF", SCOPE_OFF);
85    PyModule_AddIntConstant(m, "SCOPE_MASK", SCOPE_MASK);
86}
87