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v0.5.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 6d43f6f081023b680d9db4542d19b9e382149f0a authored by Victor Stinner on 22 January 2019, 20:18:05 UTC, committed by GitHub on 22 January 2019, 20:18:05 UTC 
bpo-35713: Split _Py_InitializeCore into subfunctions (GH-11650)
 
* Split _Py_InitializeCore_impl() into subfunctions: add multiple pycore_init_xxx() functions
* Preliminary sys.stderr is now set earlier to get an usable
  sys.stderr ealier.
* Move code into _Py_Initialize_ReconfigureCore() to be able to call
  it from _Py_InitializeCore().
* Split _PyExc_Init(): create a new _PyBuiltins_AddExceptions()
  function.
* Call _PyExc_Init() earlier in _Py_InitializeCore_impl()
  and new_interpreter() to get working exceptions earlier.
* _Py_ReadyTypes() now returns _PyInitError rather than calling
  Py_FatalError().
* Misc code cleanup
1 parent 28f6cb3
Raw File
Tip revision: 6d43f6f081023b680d9db4542d19b9e382149f0a authored by Victor Stinner on 22 January 2019, 20:18:05 UTC
bpo-35713: Split _Py_InitializeCore into subfunctions (GH-11650)
Tip revision: 6d43f6f
symtablemodule.c 
#include "Python.h"

#include "code.h"
#include "Python-ast.h"
#include "symtable.h"

#include "clinic/symtablemodule.c.h"
/*[clinic input]
module _symtable
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=f4685845a7100605]*/


/*[clinic input]
_symtable.symtable

    str:       str
    filename:  object(converter='PyUnicode_FSDecoder')
    startstr:  str
    /

Return symbol and scope dictionaries used internally by compiler.
[clinic start generated code]*/

static PyObject *
_symtable_symtable_impl(PyObject *module, const char *str,
                        PyObject *filename, const char *startstr)
/*[clinic end generated code: output=914b369c9b785956 input=6c615e84d5f408e3]*/
{
    struct symtable *st;
    PyObject *t;
    int start;

    if (strcmp(startstr, "exec") == 0)
        start = Py_file_input;
    else if (strcmp(startstr, "eval") == 0)
        start = Py_eval_input;
    else if (strcmp(startstr, "single") == 0)
        start = Py_single_input;
    else {
        PyErr_SetString(PyExc_ValueError,
           "symtable() arg 3 must be 'exec' or 'eval' or 'single'");
        Py_DECREF(filename);
        return NULL;
    }
    st = Py_SymtableStringObject(str, filename, start);
    Py_DECREF(filename);
    if (st == NULL)
        return NULL;
    t = (PyObject *)st->st_top;
    Py_INCREF(t);
    PyMem_Free((void *)st->st_future);
    PySymtable_Free(st);
    return t;
}

static PyMethodDef symtable_methods[] = {
    _SYMTABLE_SYMTABLE_METHODDEF
    {NULL,              NULL}           /* sentinel */
};

static struct PyModuleDef symtablemodule = {
    PyModuleDef_HEAD_INIT,
    "_symtable",
    NULL,
    -1,
    symtable_methods,
    NULL,
    NULL,
    NULL,
    NULL
};

PyMODINIT_FUNC
PyInit__symtable(void)
{
    PyObject *m;

    if (PyType_Ready(&PySTEntry_Type) < 0)
        return NULL;

    m = PyModule_Create(&symtablemodule);
    if (m == NULL)
        return NULL;
    PyModule_AddIntMacro(m, USE);
    PyModule_AddIntMacro(m, DEF_GLOBAL);
    PyModule_AddIntMacro(m, DEF_NONLOCAL);
    PyModule_AddIntMacro(m, DEF_LOCAL);
    PyModule_AddIntMacro(m, DEF_PARAM);
    PyModule_AddIntMacro(m, DEF_FREE);
    PyModule_AddIntMacro(m, DEF_FREE_CLASS);
    PyModule_AddIntMacro(m, DEF_IMPORT);
    PyModule_AddIntMacro(m, DEF_BOUND);
    PyModule_AddIntMacro(m, DEF_ANNOT);

    PyModule_AddIntConstant(m, "TYPE_FUNCTION", FunctionBlock);
    PyModule_AddIntConstant(m, "TYPE_CLASS", ClassBlock);
    PyModule_AddIntConstant(m, "TYPE_MODULE", ModuleBlock);

    PyModule_AddIntMacro(m, LOCAL);
    PyModule_AddIntMacro(m, GLOBAL_EXPLICIT);
    PyModule_AddIntMacro(m, GLOBAL_IMPLICIT);
    PyModule_AddIntMacro(m, FREE);
    PyModule_AddIntMacro(m, CELL);

    PyModule_AddIntConstant(m, "SCOPE_OFF", SCOPE_OFFSET);
    PyModule_AddIntMacro(m, SCOPE_MASK);

    if (PyErr_Occurred()) {
        Py_DECREF(m);
        m = 0;
    }
    return m;
}
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