mirror of https://github.com/python/cpython
102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
#include "Python.h"
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#include "code.h"
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#include "Python-ast.h"
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#include "symtable.h"
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static PyObject *
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symtable_symtable(PyObject *self, PyObject *args)
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{
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struct symtable *st;
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PyObject *t;
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char *str;
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PyObject *filename;
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char *startstr;
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int start;
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if (!PyArg_ParseTuple(args, "sO&s:symtable",
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&str, PyUnicode_FSDecoder, &filename, &startstr))
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return NULL;
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if (strcmp(startstr, "exec") == 0)
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start = Py_file_input;
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else if (strcmp(startstr, "eval") == 0)
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start = Py_eval_input;
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else if (strcmp(startstr, "single") == 0)
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start = Py_single_input;
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else {
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PyErr_SetString(PyExc_ValueError,
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"symtable() arg 3 must be 'exec' or 'eval' or 'single'");
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Py_DECREF(filename);
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return NULL;
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}
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st = Py_SymtableStringObject(str, filename, start);
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Py_DECREF(filename);
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if (st == NULL)
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return NULL;
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t = (PyObject *)st->st_top;
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Py_INCREF(t);
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PyMem_Free((void *)st->st_future);
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PySymtable_Free(st);
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return t;
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}
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static PyMethodDef symtable_methods[] = {
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{"symtable", symtable_symtable, METH_VARARGS,
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PyDoc_STR("Return symbol and scope dictionaries"
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" used internally by compiler.")},
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{NULL, NULL} /* sentinel */
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};
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static struct PyModuleDef symtablemodule = {
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PyModuleDef_HEAD_INIT,
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"_symtable",
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NULL,
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-1,
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symtable_methods,
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NULL,
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NULL,
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NULL,
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NULL
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};
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PyMODINIT_FUNC
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PyInit__symtable(void)
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{
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PyObject *m;
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if (PyType_Ready(&PySTEntry_Type) < 0)
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return NULL;
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m = PyModule_Create(&symtablemodule);
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if (m == NULL)
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return NULL;
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PyModule_AddIntMacro(m, USE);
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PyModule_AddIntMacro(m, DEF_GLOBAL);
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PyModule_AddIntMacro(m, DEF_LOCAL);
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PyModule_AddIntMacro(m, DEF_PARAM);
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PyModule_AddIntMacro(m, DEF_FREE);
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PyModule_AddIntMacro(m, DEF_FREE_CLASS);
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PyModule_AddIntMacro(m, DEF_IMPORT);
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PyModule_AddIntMacro(m, DEF_BOUND);
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PyModule_AddIntConstant(m, "TYPE_FUNCTION", FunctionBlock);
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PyModule_AddIntConstant(m, "TYPE_CLASS", ClassBlock);
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PyModule_AddIntConstant(m, "TYPE_MODULE", ModuleBlock);
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PyModule_AddIntMacro(m, LOCAL);
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PyModule_AddIntMacro(m, GLOBAL_EXPLICIT);
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PyModule_AddIntMacro(m, GLOBAL_IMPLICIT);
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PyModule_AddIntMacro(m, FREE);
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PyModule_AddIntMacro(m, CELL);
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PyModule_AddIntConstant(m, "SCOPE_OFF", SCOPE_OFFSET);
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PyModule_AddIntMacro(m, SCOPE_MASK);
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if (PyErr_Occurred()) {
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Py_DECREF(m);
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m = 0;
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}
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return m;
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}
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