diff options
Diffstat (limited to 'Python/import.c')
| -rw-r--r-- | Python/import.c | 170 |
1 files changed, 84 insertions, 86 deletions
diff --git a/Python/import.c b/Python/import.c index e6d7c06..a3f2631 100644 --- a/Python/import.c +++ b/Python/import.c @@ -1491,7 +1491,7 @@ unchanged: /* Forward */ static PyObject *load_module(PyObject *, FILE *, PyObject *, int, PyObject *); -static struct filedescr *find_module(char *, const char *, PyObject *, +static struct filedescr *find_module(PyObject *, PyObject *, PyObject *, char *, size_t, FILE **, PyObject **); static struct _frozen * find_frozen(PyObject *); @@ -1507,7 +1507,13 @@ load_package(PyObject *name, PyObject *pathname) char buf[MAXPATHLEN+1]; FILE *fp = NULL; struct filedescr *fdp; - char *namestr; + static PyObject *initstr = NULL; + + if (initstr == NULL) { + initstr = PyUnicode_InternFromString("__init__"); + if (initstr == NULL) + return NULL; + } m = PyImport_AddModuleObject(name); if (m == NULL) @@ -1532,10 +1538,7 @@ load_package(PyObject *name, PyObject *pathname) Py_DECREF(path_list); return NULL; } - namestr = _PyUnicode_AsString(name); - if (namestr == NULL) - goto error; - fdp = find_module(namestr, "__init__", path_list, buf, sizeof(buf), &fp, NULL); + fdp = find_module(name, initstr, path_list, buf, sizeof(buf), &fp, NULL); Py_DECREF(path_list); if (fdp == NULL) { if (PyErr_ExceptionMatches(PyExc_ImportError)) { @@ -1680,7 +1683,7 @@ static struct filedescr importhookdescr = {"", "", IMP_HOOK}; and *buf is the path */ static int -find_module_path(char *fullname, const char *name, PyObject *path, +find_module_path(PyObject *fullname, PyObject *name, PyObject *path, PyObject *path_hooks, PyObject *path_importer_cache, char *buf, size_t buflen, PyObject **p_loader, struct filedescr **p_fd) @@ -1691,6 +1694,7 @@ find_module_path(char *fullname, const char *name, PyObject *path, size_t namelen; struct stat statbuf; static struct filedescr fd_package = {"", "", PKG_DIRECTORY}; + char *namestr; if (PyUnicode_Check(path)) { path_bytes = PyUnicode_EncodeFSDefault(path); @@ -1704,7 +1708,8 @@ find_module_path(char *fullname, const char *name, PyObject *path, else return 0; - namelen = strlen(name); + namestr = _PyUnicode_AsString(name); + namelen = strlen(namestr); base = PyBytes_AS_STRING(path_bytes); len = PyBytes_GET_SIZE(path_bytes); if (len + 2 + namelen + MAXSUFFIXSIZE >= buflen) { @@ -1731,8 +1736,7 @@ find_module_path(char *fullname, const char *name, PyObject *path, if (importer != Py_None) { PyObject *loader; loader = PyObject_CallMethod(importer, - "find_module", - "s", fullname); + "find_module", "O", fullname); if (loader == NULL) return -1; /* error */ if (loader != Py_None) { @@ -1753,7 +1757,7 @@ find_module_path(char *fullname, const char *name, PyObject *path, #endif ) buf[len++] = SEP; - strcpy(buf+len, name); + strcpy(buf+len, namestr); len += namelen; /* Check for package import (buf holds a directory name, @@ -1761,7 +1765,7 @@ find_module_path(char *fullname, const char *name, PyObject *path, #ifdef HAVE_STAT if (stat(buf, &statbuf) == 0 && /* it exists */ S_ISDIR(statbuf.st_mode) && /* it's a directory */ - case_ok(buf, len, namelen, name)) { /* case matches */ + case_ok(buf, len, namelen, namestr)) { /* case matches */ if (find_init_module(buf)) { /* and has __init__.py */ *p_fd = &fd_package; return 2; @@ -1784,7 +1788,7 @@ find_module_path(char *fullname, const char *name, PyObject *path, } /* Find a module in search_path_list. For each path, try - find_module_filename() or try each _PyImport_Filetab suffix. + find_module_path() or try each _PyImport_Filetab suffix. If the module is found, return a file descriptor, write the path in *p_filename, write the pointer to the file object into *p_fp, and (if @@ -1793,7 +1797,7 @@ find_module_path(char *fullname, const char *name, PyObject *path, Otherwise, raise an exception and return NULL. */ static struct filedescr* -find_module_path_list(char *fullname, const char *name, +find_module_path_list(PyObject *fullname, PyObject *name, PyObject *search_path_list, PyObject *path_hooks, PyObject *path_importer_cache, char *buf, size_t buflen, @@ -1804,9 +1808,11 @@ find_module_path_list(char *fullname, const char *name, struct filedescr *fdp = NULL; char *filemode; FILE *fp = NULL; + char *namestr; npath = PyList_Size(search_path_list); - namelen = strlen(name); + namestr = _PyUnicode_AsString(name); + namelen = strlen(namestr); for (i = 0; i < npath; i++) { PyObject *path; int ok; @@ -1836,7 +1842,7 @@ find_module_path_list(char *fullname, const char *name, filemode = "r" PY_STDIOTEXTMODE; fp = fopen(buf, filemode); if (fp != NULL) { - if (case_ok(buf, len, namelen, name)) + if (case_ok(buf, len, namelen, namestr)) break; else { /* continue search */ fclose(fp); @@ -1849,7 +1855,7 @@ find_module_path_list(char *fullname, const char *name, } if (fp == NULL) { PyErr_Format(PyExc_ImportError, - "No module named %.200s", name); + "No module named %U", name); return NULL; } *p_fp = fp; @@ -1882,21 +1888,20 @@ find_module_path_list(char *fullname, const char *name, set) are set to NULL. Eg. *buf is an empty string for a builtin package. */ static struct filedescr * -find_module(char *fullname, const char *name, PyObject *search_path_list, +find_module(PyObject *fullname, PyObject *name, PyObject *search_path_list, char *buf, size_t buflen, FILE **p_fp, PyObject **p_loader) { Py_ssize_t i, npath; static struct filedescr fd_frozen = {"", "", PY_FROZEN}; static struct filedescr fd_builtin = {"", "", C_BUILTIN}; PyObject *path_hooks, *path_importer_cache; - PyObject *fullname_obj, *nameobj; *buf = '\0'; *p_fp = NULL; if (p_loader != NULL) *p_loader = NULL; - if (strlen(name) > MAXPATHLEN) { + if (PyUnicode_GET_SIZE(name) > MAXPATHLEN) { PyErr_SetString(PyExc_OverflowError, "module name is too long"); return NULL; @@ -1919,7 +1924,7 @@ find_module(char *fullname, const char *name, PyObject *search_path_list, PyObject *loader; PyObject *hook = PyList_GetItem(meta_path, i); loader = PyObject_CallMethod(hook, "find_module", - "sO", fullname, + "OO", fullname, search_path_list != NULL ? search_path_list : Py_None); if (loader == NULL) { @@ -1937,16 +1942,9 @@ find_module(char *fullname, const char *name, PyObject *search_path_list, Py_DECREF(meta_path); } - if (fullname != NULL) { - fullname_obj = PyUnicode_FromString(fullname); - if (fullname == NULL) - return NULL; - if (find_frozen(fullname_obj) != NULL) { - Py_DECREF(fullname_obj); - strcpy(buf, fullname); - return &fd_frozen; - } - Py_DECREF(fullname_obj); + if (find_frozen(fullname) != NULL) { + strcpy(buf, _PyUnicode_AsString(fullname)); + return &fd_frozen; } if (search_path_list == NULL) { @@ -1955,18 +1953,13 @@ find_module(char *fullname, const char *name, PyObject *search_path_list, struct filedescr *fdp; PyObject *filename, *filename_bytes; #endif - nameobj = PyUnicode_FromString(name); - if (nameobj == NULL) - return NULL; - if (is_builtin(nameobj)) { - Py_DECREF(nameobj); - strcpy(buf, name); + if (is_builtin(name)) { + strcpy(buf, _PyUnicode_AsString(name)); return &fd_builtin; } #ifdef MS_COREDLL - fp = _PyWin_FindRegisteredModule(nameobj, &fdp, &filename); + fp = _PyWin_FindRegisteredModule(name, &fdp, &filename); if (fp != NULL) { - Py_DECREF(nameobj); filename_bytes = PyUnicode_EncodeFSDefault(filename); Py_DECREF(filename); if (filename_bytes == NULL) @@ -1980,7 +1973,6 @@ find_module(char *fullname, const char *name, PyObject *search_path_list, else if (PyErr_Occurred()) return NULL; #endif - Py_DECREF(nameobj); search_path_list = PySys_GetObject("path"); } @@ -3139,8 +3131,8 @@ import_submodule(PyObject *mod, PyObject *subname, PyObject *fullname) } } - fdp = find_module(_PyUnicode_AsString(fullname), - _PyUnicode_AsString(subname), + fdp = find_module(fullname, + subname, path, buf, MAXPATHLEN+1, &fp, &loader); Py_XDECREF(path); @@ -3180,12 +3172,13 @@ PyImport_ReloadModule(PyObject *m) PyInterpreterState *interp = PyThreadState_Get()->interp; PyObject *modules_reloading = interp->modules_reloading; PyObject *modules = PyImport_GetModuleDict(); - PyObject *path = NULL, *loader, *existing_m = NULL; - char *name, *subname; char buf[MAXPATHLEN+1]; + PyObject *path = NULL, *loader = NULL, *existing_m = NULL; + PyObject *nameobj, *bufobj, *subnameobj; + Py_UNICODE *name, *subname; struct filedescr *fdp; - FILE *fp; - PyObject *newm, *nameobj, *bufobj; + FILE *fp = NULL; + PyObject *newm = NULL; if (modules_reloading == NULL) { Py_FatalError("PyImport_ReloadModule: " @@ -3198,69 +3191,75 @@ PyImport_ReloadModule(PyObject *m) "reload() argument must be module"); return NULL; } - name = (char*)PyModule_GetName(m); - if (name == NULL) + nameobj = PyModule_GetNameObject(m); + if (nameobj == NULL) return NULL; - if (m != PyDict_GetItemString(modules, name)) { + if (m != PyDict_GetItem(modules, nameobj)) { PyErr_Format(PyExc_ImportError, - "reload(): module %.200s not in sys.modules", - name); + "reload(): module %U not in sys.modules", + nameobj); + Py_DECREF(nameobj); return NULL; } - existing_m = PyDict_GetItemString(modules_reloading, name); + existing_m = PyDict_GetItem(modules_reloading, nameobj); if (existing_m != NULL) { /* Due to a recursive reload, this module is already being reloaded. */ + Py_DECREF(nameobj); Py_INCREF(existing_m); return existing_m; } - if (PyDict_SetItemString(modules_reloading, name, m) < 0) + if (PyDict_SetItem(modules_reloading, nameobj, m) < 0) { + Py_DECREF(nameobj); return NULL; + } - subname = strrchr(name, '.'); - if (subname == NULL) - subname = name; + name = PyUnicode_AS_UNICODE(nameobj); + subname = Py_UNICODE_strrchr(name, '.'); + if (subname == NULL) { + Py_INCREF(nameobj); + subnameobj = nameobj; + } else { PyObject *parentname, *parent; - parentname = PyUnicode_FromStringAndSize(name, (subname-name)); + Py_ssize_t len; + len = subname - name; + parentname = PyUnicode_FromUnicode(name, len); if (parentname == NULL) { - imp_modules_reloading_clear(); - return NULL; + goto error; } parent = PyDict_GetItem(modules, parentname); if (parent == NULL) { PyErr_Format(PyExc_ImportError, - "reload(): parent %R not in sys.modules", + "reload(): parent %U not in sys.modules", parentname); Py_DECREF(parentname); - imp_modules_reloading_clear(); - return NULL; + goto error; } Py_DECREF(parentname); - subname++; path = PyObject_GetAttrString(parent, "__path__"); if (path == NULL) PyErr_Clear(); + subname++; + len = PyUnicode_GET_SIZE(nameobj) - (len + 1); + subnameobj = PyUnicode_FromUnicode(subname, len); } - fdp = find_module(name, subname, path, buf, MAXPATHLEN+1, &fp, &loader); + if (subnameobj == NULL) + goto error; + fdp = find_module(nameobj, subnameobj, + path, buf, MAXPATHLEN+1, &fp, &loader); + Py_DECREF(subnameobj); Py_XDECREF(path); if (fdp == NULL) { Py_XDECREF(loader); - imp_modules_reloading_clear(); - return NULL; + goto error; } - nameobj = PyUnicode_FromString(name); - if (nameobj != NULL) { - bufobj = PyUnicode_DecodeFSDefault(buf); - if (bufobj != NULL) { - newm = load_module(nameobj, fp, bufobj, fdp->type, loader); - Py_DECREF(bufobj); - } - else - newm = NULL; - Py_DECREF(nameobj); + bufobj = PyUnicode_DecodeFSDefault(buf); + if (bufobj != NULL) { + newm = load_module(nameobj, fp, bufobj, fdp->type, loader); + Py_DECREF(bufobj); } else newm = NULL; @@ -3274,9 +3273,12 @@ PyImport_ReloadModule(PyObject *m) * going to return NULL in this case regardless of whether * replacing name succeeds, so the return value is ignored. */ - PyDict_SetItemString(modules, name, m); + PyDict_SetItem(modules, nameobj, m); } + +error: imp_modules_reloading_clear(); + Py_DECREF(nameobj); return newm; } @@ -3424,7 +3426,7 @@ imp_get_suffixes(PyObject *self, PyObject *noargs) } static PyObject * -call_find_module(char *name, PyObject *path) +call_find_module(PyObject *name, PyObject *path) { extern int fclose(FILE *); PyObject *fob, *ret; @@ -3483,15 +3485,11 @@ call_find_module(char *name, PyObject *path) static PyObject * imp_find_module(PyObject *self, PyObject *args) { - PyObject *name; - PyObject *ret, *path = NULL; - if (!PyArg_ParseTuple(args, "O&|O:find_module", - PyUnicode_FSConverter, &name, - &path)) + PyObject *name, *path_list = NULL; + if (!PyArg_ParseTuple(args, "U|O:find_module", + &name, &path_list)) return NULL; - ret = call_find_module(PyBytes_AS_STRING(name), path); - Py_DECREF(name); - return ret; + return call_find_module(name, path_list); } static PyObject * |