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author | Jason R. Coombs <jaraco@jaraco.com> | 2014-03-08 21:30:22 -0500 |
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committer | Jason R. Coombs <jaraco@jaraco.com> | 2014-03-08 21:30:22 -0500 |
commit | 2406689ebade93e59b562f7188e641b4e774568c (patch) | |
tree | b1a7774d0c33366a873370b3e107d731bd5a535a /lib/sqlalchemy/cextension/utils.c | |
parent | 63bb4ec5ab75ffdbec0502f82752328948f6fef5 (diff) | |
download | sqlalchemy-pr/77.tar.gz |
Moved speedups to a separate module. To include the speedups, require sqlalchemy[speedups].pr/77
Diffstat (limited to 'lib/sqlalchemy/cextension/utils.c')
-rw-r--r-- | lib/sqlalchemy/cextension/utils.c | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/lib/sqlalchemy/cextension/utils.c b/lib/sqlalchemy/cextension/utils.c deleted file mode 100644 index 377ba8a8d..000000000 --- a/lib/sqlalchemy/cextension/utils.c +++ /dev/null @@ -1,225 +0,0 @@ -/* -utils.c -Copyright (C) 2012-2014 the SQLAlchemy authors and contributors <see AUTHORS file> - -This module is part of SQLAlchemy and is released under -the MIT License: http://www.opensource.org/licenses/mit-license.php -*/ - -#include <Python.h> - -#define MODULE_NAME "cutils" -#define MODULE_DOC "Module containing C versions of utility functions." - -/* - Given arguments from the calling form *multiparams, **params, - return a list of bind parameter structures, usually a list of - dictionaries. - - In the case of 'raw' execution which accepts positional parameters, - it may be a list of tuples or lists. - - */ -static PyObject * -distill_params(PyObject *self, PyObject *args) -{ - PyObject *multiparams, *params; - PyObject *enclosing_list, *double_enclosing_list; - PyObject *zero_element, *zero_element_item; - Py_ssize_t multiparam_size, zero_element_length; - - if (!PyArg_UnpackTuple(args, "_distill_params", 2, 2, &multiparams, ¶ms)) { - return NULL; - } - - if (multiparams != Py_None) { - multiparam_size = PyTuple_Size(multiparams); - if (multiparam_size < 0) { - return NULL; - } - } - else { - multiparam_size = 0; - } - - if (multiparam_size == 0) { - if (params != Py_None && PyDict_Size(params) != 0) { - enclosing_list = PyList_New(1); - if (enclosing_list == NULL) { - return NULL; - } - Py_INCREF(params); - if (PyList_SetItem(enclosing_list, 0, params) == -1) { - Py_DECREF(params); - Py_DECREF(enclosing_list); - return NULL; - } - } - else { - enclosing_list = PyList_New(0); - if (enclosing_list == NULL) { - return NULL; - } - } - return enclosing_list; - } - else if (multiparam_size == 1) { - zero_element = PyTuple_GetItem(multiparams, 0); - if (PyTuple_Check(zero_element) || PyList_Check(zero_element)) { - zero_element_length = PySequence_Length(zero_element); - - if (zero_element_length != 0) { - zero_element_item = PySequence_GetItem(zero_element, 0); - if (zero_element_item == NULL) { - return NULL; - } - } - else { - zero_element_item = NULL; - } - - if (zero_element_length == 0 || - ( - PyObject_HasAttrString(zero_element_item, "__iter__") && - !PyObject_HasAttrString(zero_element_item, "strip") - ) - ) { - /* - * execute(stmt, [{}, {}, {}, ...]) - * execute(stmt, [(), (), (), ...]) - */ - Py_XDECREF(zero_element_item); - Py_INCREF(zero_element); - return zero_element; - } - else { - /* - * execute(stmt, ("value", "value")) - */ - Py_XDECREF(zero_element_item); - enclosing_list = PyList_New(1); - if (enclosing_list == NULL) { - return NULL; - } - Py_INCREF(zero_element); - if (PyList_SetItem(enclosing_list, 0, zero_element) == -1) { - Py_DECREF(zero_element); - Py_DECREF(enclosing_list); - return NULL; - } - return enclosing_list; - } - } - else if (PyObject_HasAttrString(zero_element, "keys")) { - /* - * execute(stmt, {"key":"value"}) - */ - enclosing_list = PyList_New(1); - if (enclosing_list == NULL) { - return NULL; - } - Py_INCREF(zero_element); - if (PyList_SetItem(enclosing_list, 0, zero_element) == -1) { - Py_DECREF(zero_element); - Py_DECREF(enclosing_list); - return NULL; - } - return enclosing_list; - } else { - enclosing_list = PyList_New(1); - if (enclosing_list == NULL) { - return NULL; - } - double_enclosing_list = PyList_New(1); - if (double_enclosing_list == NULL) { - Py_DECREF(enclosing_list); - return NULL; - } - Py_INCREF(zero_element); - if (PyList_SetItem(enclosing_list, 0, zero_element) == -1) { - Py_DECREF(zero_element); - Py_DECREF(enclosing_list); - Py_DECREF(double_enclosing_list); - return NULL; - } - if (PyList_SetItem(double_enclosing_list, 0, enclosing_list) == -1) { - Py_DECREF(zero_element); - Py_DECREF(enclosing_list); - Py_DECREF(double_enclosing_list); - return NULL; - } - return double_enclosing_list; - } - } - else { - zero_element = PyTuple_GetItem(multiparams, 0); - if (PyObject_HasAttrString(zero_element, "__iter__") && - !PyObject_HasAttrString(zero_element, "strip") - ) { - Py_INCREF(multiparams); - return multiparams; - } - else { - enclosing_list = PyList_New(1); - if (enclosing_list == NULL) { - return NULL; - } - Py_INCREF(multiparams); - if (PyList_SetItem(enclosing_list, 0, multiparams) == -1) { - Py_DECREF(multiparams); - Py_DECREF(enclosing_list); - return NULL; - } - return enclosing_list; - } - } -} - -static PyMethodDef module_methods[] = { - {"_distill_params", distill_params, METH_VARARGS, - "Distill an execute() parameter structure."}, - {NULL, NULL, 0, NULL} /* Sentinel */ -}; - -#ifndef PyMODINIT_FUNC /* declarations for DLL import/export */ -#define PyMODINIT_FUNC void -#endif - -#if PY_MAJOR_VERSION >= 3 - -static struct PyModuleDef module_def = { - PyModuleDef_HEAD_INIT, - MODULE_NAME, - MODULE_DOC, - -1, - module_methods - }; -#endif - - -#if PY_MAJOR_VERSION >= 3 -PyMODINIT_FUNC -PyInit_cutils(void) -#else -PyMODINIT_FUNC -initcutils(void) -#endif -{ - PyObject *m; - -#if PY_MAJOR_VERSION >= 3 - m = PyModule_Create(&module_def); -#else - m = Py_InitModule3(MODULE_NAME, module_methods, MODULE_DOC); -#endif - -#if PY_MAJOR_VERSION >= 3 - if (m == NULL) - return NULL; - return m; -#else - if (m == NULL) - return; -#endif -} - |