Library import 16 (#2433)

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1 files changed, 0 insertions, 253 deletions

diff --git a/contrib/tools/python3/src/Python/importdl.c b/contrib/tools/python3/src/Python/importdl.c
deleted file mode 100644
index 3a3a30ddbdc..00000000000
--- a/contrib/tools/python3/src/Python/importdl.c
+++ /dev/null
@@ -1,253 +0,0 @@
-
-/* Support for dynamic loading of extension modules */
-
-#include "Python.h"
-#include "pycore_call.h"
-#include "pycore_import.h"
-#include "pycore_pystate.h"
-#include "pycore_runtime.h"
-
-/* ./configure sets HAVE_DYNAMIC_LOADING if dynamic loading of modules is
-   supported on this platform. configure will then compile and link in one
-   of the dynload_*.c files, as appropriate. We will call a function in
-   those modules to get a function pointer to the module's init function.
-*/
-#ifdef HAVE_DYNAMIC_LOADING
-
-#include "importdl.h"
-
-#ifdef MS_WINDOWS
-extern dl_funcptr _PyImport_FindSharedFuncptrWindows(const char *prefix,
-                                                     const char *shortname,
-                                                     PyObject *pathname,
-                                                     FILE *fp);
-#else
-extern dl_funcptr _PyImport_FindSharedFuncptr(const char *prefix,
-                                              const char *shortname,
-                                              const char *pathname, FILE *fp);
-#endif
-
-static const char * const ascii_only_prefix = "PyInit";
-static const char * const nonascii_prefix = "PyInitU";
-
-/* Get the variable part of a module's export symbol name.
- * Returns a bytes instance. For non-ASCII-named modules, the name is
- * encoded as per PEP 489.
- * The hook_prefix pointer is set to either ascii_only_prefix or
- * nonascii_prefix, as appropriate.
- */
-static PyObject *
-get_encoded_name(PyObject *name, const char **hook_prefix) {
-    PyObject *tmp;
-    PyObject *encoded = NULL;
-    PyObject *modname = NULL;
-    Py_ssize_t name_len, lastdot;
-
-    /* Get the short name (substring after last dot) */
-    name_len = PyUnicode_GetLength(name);
-    if (name_len < 0) {
-        return NULL;
-    }
-    lastdot = PyUnicode_FindChar(name, '.', 0, name_len, -1);
-    if (lastdot < -1) {
-        return NULL;
-    } else if (lastdot >= 0) {
-        tmp = PyUnicode_Substring(name, lastdot + 1, name_len);
-        if (tmp == NULL)
-            return NULL;
-        name = tmp;
-        /* "name" now holds a new reference to the substring */
-    } else {
-        Py_INCREF(name);
-    }
-
-    /* Encode to ASCII or Punycode, as needed */
-    encoded = PyUnicode_AsEncodedString(name, "ascii", NULL);
-    if (encoded != NULL) {
-        *hook_prefix = ascii_only_prefix;
-    } else {
-        if (PyErr_ExceptionMatches(PyExc_UnicodeEncodeError)) {
-            PyErr_Clear();
-            encoded = PyUnicode_AsEncodedString(name, "punycode", NULL);
-            if (encoded == NULL) {
-                goto error;
-            }
-            *hook_prefix = nonascii_prefix;
-        } else {
-            goto error;
-        }
-    }
-
-    /* Replace '-' by '_' */
-    modname = _PyObject_CallMethod(encoded, &_Py_ID(replace), "cc", '-', '_');
-    if (modname == NULL)
-        goto error;
-
-    Py_DECREF(name);
-    Py_DECREF(encoded);
-    return modname;
-error:
-    Py_DECREF(name);
-    Py_XDECREF(encoded);
-    return NULL;
-}
-
-PyObject *
-_PyImport_LoadDynamicModuleWithSpec(PyObject *spec, FILE *fp)
-{
-#ifndef MS_WINDOWS
-    PyObject *pathbytes = NULL;
-#endif
-    PyObject *name_unicode = NULL, *name = NULL, *path = NULL, *m = NULL;
-    const char *name_buf, *hook_prefix;
-    const char *oldcontext, *newcontext;
-    dl_funcptr exportfunc;
-    PyModuleDef *def;
-    PyModInitFunction p0;
-
-    name_unicode = PyObject_GetAttrString(spec, "name");
-    if (name_unicode == NULL) {
-        return NULL;
-    }
-    if (!PyUnicode_Check(name_unicode)) {
-        PyErr_SetString(PyExc_TypeError,
-                        "spec.name must be a string");
-        goto error;
-    }
-    newcontext = PyUnicode_AsUTF8(name_unicode);
-    if (newcontext == NULL) {
-        goto error;
-    }
-
-    name = get_encoded_name(name_unicode, &hook_prefix);
-    if (name == NULL) {
-        goto error;
-    }
-    name_buf = PyBytes_AS_STRING(name);
-
-    path = PyObject_GetAttrString(spec, "origin");
-    if (path == NULL)
-        goto error;
-
-    if (PySys_Audit("import", "OOOOO", name_unicode, path,
-                    Py_None, Py_None, Py_None) < 0) {
-        goto error;
-    }
-
-#ifdef MS_WINDOWS
-    exportfunc = _PyImport_FindSharedFuncptrWindows(hook_prefix, name_buf,
-                                                    path, fp);
-#else
-    pathbytes = PyUnicode_EncodeFSDefault(path);
-    if (pathbytes == NULL)
-        goto error;
-    exportfunc = _PyImport_FindSharedFuncptr(hook_prefix, name_buf,
-                                             PyBytes_AS_STRING(pathbytes),
-                                             fp);
-    Py_DECREF(pathbytes);
-#endif
-
-    if (exportfunc == NULL) {
-        if (!PyErr_Occurred()) {
-            PyObject *msg;
-            msg = PyUnicode_FromFormat(
-                "dynamic module does not define "
-                "module export function (%s_%s)",
-                hook_prefix, name_buf);
-            if (msg == NULL)
-                goto error;
-            PyErr_SetImportError(msg, name_unicode, path);
-            Py_DECREF(msg);
-        }
-        goto error;
-    }
-
-    p0 = (PyModInitFunction)exportfunc;
-
-    /* Package context is needed for single-phase init */
-    oldcontext = _PyImport_SwapPackageContext(newcontext);
-    m = _PyImport_InitFunc_TrampolineCall(p0);
-    _PyImport_SwapPackageContext(oldcontext);
-
-    if (m == NULL) {
-        if (!PyErr_Occurred()) {
-            PyErr_Format(
-                PyExc_SystemError,
-                "initialization of %s failed without raising an exception",
-                name_buf);
-        }
-        goto error;
-    } else if (PyErr_Occurred()) {
-        _PyErr_FormatFromCause(
-            PyExc_SystemError,
-            "initialization of %s raised unreported exception",
-            name_buf);
-        m = NULL;
-        goto error;
-    }
-    if (Py_IS_TYPE(m, NULL)) {
-        /* This can happen when a PyModuleDef is returned without calling
-         * PyModuleDef_Init on it
-         */
-        PyErr_Format(PyExc_SystemError,
-                     "init function of %s returned uninitialized object",
-                     name_buf);
-        m = NULL; /* prevent segfault in DECREF */
-        goto error;
-    }
-    if (PyObject_TypeCheck(m, &PyModuleDef_Type)) {
-        Py_DECREF(name_unicode);
-        Py_DECREF(name);
-        Py_DECREF(path);
-        return PyModule_FromDefAndSpec((PyModuleDef*)m, spec);
-    }
-
-    /* Fall back to single-phase init mechanism */
-
-    if (_PyImport_CheckSubinterpIncompatibleExtensionAllowed(name_buf) < 0) {
-        goto error;
-    }
-
-    if (hook_prefix == nonascii_prefix) {
-        /* don't allow legacy init for non-ASCII module names */
-        PyErr_Format(
-            PyExc_SystemError,
-            "initialization of %s did not return PyModuleDef",
-            name_buf);
-        goto error;
-    }
-
-    /* Remember pointer to module init function. */
-    def = PyModule_GetDef(m);
-    if (def == NULL) {
-        PyErr_Format(PyExc_SystemError,
-                     "initialization of %s did not return an extension "
-                     "module", name_buf);
-        goto error;
-    }
-    def->m_base.m_init = p0;
-
-    /* Remember the filename as the __file__ attribute */
-    if (PyModule_AddObjectRef(m, "__file__", path) < 0) {
-        PyErr_Clear(); /* Not important enough to report */
-    }
-
-    PyObject *modules = PyImport_GetModuleDict();
-    if (_PyImport_FixupExtensionObject(m, name_unicode, path, modules) < 0)
-        goto error;
-
-    Py_DECREF(name_unicode);
-    Py_DECREF(name);
-    Py_DECREF(path);
-
-    return m;
-
-error:
-    Py_DECREF(name_unicode);
-    Py_XDECREF(name);
-    Py_XDECREF(path);
-    Py_XDECREF(m);
-    return NULL;
-}
-
-#endif /* HAVE_DYNAMIC_LOADING */