Initial commit: Masina-Dock Vehicle Management System

AppDir/usr/lib/python3.12/site-packages/sqlalchemy/cyextension/util.pyx

@@ -0,0 +1,90 @@
+# cyextension/util.pyx
+# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+from collections.abc import Mapping
+
+from sqlalchemy import exc
+
+cdef tuple _Empty_Tuple = ()
+
+cdef inline bint _is_mapping_or_tuple(object value):
+    return isinstance(value, dict) or isinstance(value, tuple) or isinstance(value, Mapping)
+
+
+cdef inline bint _is_mapping(object value):
+    return isinstance(value, dict) or isinstance(value, Mapping)
+
+
+def _distill_params_20(object params):
+    if params is None:
+        return _Empty_Tuple
+    elif isinstance(params, list) or isinstance(params, tuple):
+        if params and not _is_mapping(params[0]):
+            raise exc.ArgumentError(
+                "List argument must consist only of dictionaries"
+            )
+        return params
+    elif _is_mapping(params):
+        return [params]
+    else:
+        raise exc.ArgumentError("mapping or list expected for parameters")
+
+
+def _distill_raw_params(object params):
+    if params is None:
+        return _Empty_Tuple
+    elif isinstance(params, list):
+        if params and not _is_mapping_or_tuple(params[0]):
+            raise exc.ArgumentError(
+                "List argument must consist only of tuples or dictionaries"
+            )
+        return params
+    elif _is_mapping_or_tuple(params):
+        return [params]
+    else:
+        raise exc.ArgumentError("mapping or sequence expected for parameters")
+
+cdef class prefix_anon_map(dict):
+    def __missing__(self, str key):
+        cdef str derived
+        cdef int anonymous_counter
+        cdef dict self_dict = self
+
+        derived = key.split(" ", 1)[1]
+
+        anonymous_counter = self_dict.get(derived, 1)
+        self_dict[derived] = anonymous_counter + 1
+        value = f"{derived}_{anonymous_counter}"
+        self_dict[key] = value
+        return value
+
+
+cdef class cache_anon_map(dict):
+    cdef int _index
+
+    def __init__(self):
+        self._index = 0
+
+    def get_anon(self, obj):
+        cdef long long idself
+        cdef str id_
+        cdef dict self_dict = self
+
+        idself = id(obj)
+        if idself in self_dict:
+            return self_dict[idself], True
+        else:
+            id_ = self.__missing__(idself)
+            return id_, False
+
+    def __missing__(self, key):
+        cdef str val
+        cdef dict self_dict = self
+
+        self_dict[key] = val = str(self._index)
+        self._index += 1
+        return val
+