New implementation of Acquisition using new-style extension classes.

Acquisition.h

+/*****************************************************************************
+
+  Copyright (c) 1996-2002 Zope Corporation and Contributors.
+  All Rights Reserved.
+
+  This software is subject to the provisions of the Zope Public License,
+  Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
+  THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+  WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+  FOR A PARTICULAR PURPOSE
+
+ ****************************************************************************/
+
+#ifndef __ACQUISITION_H_
+#define __ACQUISITION_H_
+
+typedef struct {
+	PyObject *(*AQ_Acquire) (PyObject *obj, PyObject *name, PyObject *filter,
+		PyObject *extra, int explicit, PyObject *deflt,
+		int containment);
+	PyObject *(*AQ_Get) (PyObject *obj, PyObject *name, PyObject *deflt,
+		int containment);
+	int (*AQ_IsWrapper) (PyObject *obj);
+	PyObject *(*AQ_Base) (PyObject *obj);
+	PyObject *(*AQ_Parent) (PyObject *obj);
+	PyObject *(*AQ_Self) (PyObject *obj);
+	PyObject *(*AQ_Inner) (PyObject *obj);
+	PyObject *(*AQ_Chain) (PyObject *obj, int containment);
+} ACQUISITIONCAPI;
+
+#ifndef _IN_ACQUISITION_C
+
+#define aq_Acquire(obj, name, filter, extra, explicit, deflt, containment ) (AcquisitionCAPI == NULL ? NULL : (AcquisitionCAPI->AQ_Acquire(obj, name, filter, extra, explicit, deflt, containment)))
+#define aq_acquire(obj, name) (AcquisitionCAPI == NULL ? NULL : (AcquisitionCAPI->AQ_Acquire(obj, name, NULL, NULL, 1, NULL, 0)))
+#define aq_get(obj, name, deflt, containment) (AcquistionCAPI == NULL ? NULL : (AcquisitionCAPI->AQ_Get(obj, name, deflt, containment)))
+#define aq_isWrapper(obj)   (AcquisitionCAPI == NULL ? -1 : (AcquisitionCAPI->AQ_IsWrapper(obj)))
+#define aq_base(obj)   (AcquisitionCAPI == NULL ? NULL : (AcquisitionCAPI->AQ_Base(obj)))
+#define aq_parent(obj) (AcquisitionCAPI == NULL ? NULL : (AcquisitionCAPI->AQ_Parent(obj)))
+#define aq_self(obj)   (AcquisitionCAPI == NULL ? NULL : (AcquisitionCAPI->AQ_Self(obj)))
+#define aq_inner(obj)  (AcquisitionCAPI == NULL ? NULL : (AcquisitionCAPI->AQ_Inner(obj)))
+#define aq_chain(obj, containment) (AcquisitionCAPI == NULL ? NULL : (AcquisitionCAPI->AQ_CHain(obj, containment)))
+
+static ACQUISITIONCAPI *AcquisitionCAPI = NULL;
+
+#define aq_init() { \
+    PyObject *module; \
+    PyObject *api; \
+    if (! (module = PyImport_ImportModule("Acquisition"))) return; \
+    if (! (api = PyObject_GetAttrString(module,"AcquisitionCAPI"))) return; \
+    Py_DECREF(module); \
+    AcquisitionCAPI = PyCObject_AsVoidPtr(api); \
+    Py_DECREF(api); \
+}
+
+
+
+#endif
+
+#endif

__init__.py

+from _Acquisition import *

setup.py

+##############################################################################
+#
+# Copyright (c) 2003 Zope Corporation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+
+from distutils.core import setup, Extension
+setup(name="_Acquisition", version="2.0",
+      ext_modules=[
+         Extension("_Acquisition", ["_Acquisition.c"],
+                   include_dirs = ['.', '../ExtensionClass'],
+                   depends = ["Acquisition.h",
+                              '../ExtensionClass/ExtensionClass.h']),
+         ])
+