Implement C API function _PyNamespace_New

Author: fangerer

graalpython/com.oracle.graal.python.cext/include/Python.h

@@ -80,6 +80,7 @@
 #include "modsupport.h"
 #include "tupleobject.h"
 #include "structseq.h"
+#include "namespaceobject.h"
 #include "structmember.h"
 #include "pytime.h"
 #include "pymem.h"

graalpython/com.oracle.graal.python.cext/include/namespaceobject.h

@@ -0,0 +1,24 @@
+/* Copyright (c) 2020, Oracle and/or its affiliates.
+ * Copyright (C) 1996-2020 Python Software Foundation
+ *
+ * Licensed under the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
+ */
+
+/* simple namespace object interface */
+
+#ifndef NAMESPACEOBJECT_H
+#define NAMESPACEOBJECT_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef Py_LIMITED_API
+PyAPI_DATA(PyTypeObject) _PyNamespace_Type;
+
+PyAPI_FUNC(PyObject *) _PyNamespace_New(PyObject *kwds);
+#endif /* !Py_LIMITED_API */
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !NAMESPACEOBJECT_H */

graalpython/com.oracle.graal.python.cext/src/namespaceobject.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * The Universal Permissive License (UPL), Version 1.0
+ *
+ * Subject to the condition set forth below, permission is hereby granted to any
+ * person obtaining a copy of this software, associated documentation and/or
+ * data (collectively the "Software"), free of charge and under any and all
+ * copyright rights in the Software, and any and all patent rights owned or
+ * freely licensable by each licensor hereunder covering either (i) the
+ * unmodified Software as contributed to or provided by such licensor, or (ii)
+ * the Larger Works (as defined below), to deal in both
+ *
+ * (a) the Software, and
+ *
+ * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
+ * one is included with the Software each a "Larger Work" to which the Software
+ * is contributed by such licensors),
+ *
+ * without restriction, including without limitation the rights to copy, create
+ * derivative works of, display, perform, and distribute the Software and make,
+ * use, sell, offer for sale, import, export, have made, and have sold the
+ * Software and the Larger Work(s), and to sublicense the foregoing rights on
+ * either these or other terms.
+ *
+ * This license is subject to the following condition:
+ *
+ * The above copyright notice and either this complete permission notice or at a
+ * minimum a reference to the UPL must be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "capi.h"
+
+typedef struct {
+    PyObject_HEAD
+    PyObject *ns_dict;
+} _PyNamespaceObject;
+
+PyTypeObject _PyNamespace_Type = PY_TRUFFLE_TYPE("SimpleNamespace", &PyType_Type, Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_BASETYPE, sizeof(_PyNamespaceObject));
+
+UPCALL_ID(_PyNamespace_New);
+PyObject *
+_PyNamespace_New(PyObject *kwds) {
+	return UPCALL_CEXT_O(_jls__PyNamespace_New, native_to_java(kwds));
+}

graalpython/lib-graalpython/python_cext.py

@@ -1582,3 +1582,11 @@ def PyEval_GetBuiltins():
 
 def sequence_clear():
     return 0
+
+namespace_type = None
+@may_raise
+def _PyNamespace_New(kwds):
+    global namespace_type
+    if not namespace_type:
+        from types import SimpleNamespace as namespace_type
+    return namespace_type(**kwds)

mx.graalpython/copyrights/overrides

@@ -117,6 +117,7 @@ graalpython/com.oracle.graal.python.cext/include/memoryobject.h,python.copyright
 graalpython/com.oracle.graal.python.cext/include/methodobject.h,python.copyright
 graalpython/com.oracle.graal.python.cext/include/modsupport.h,python.copyright
 graalpython/com.oracle.graal.python.cext/include/moduleobject.h,python.copyright
+graalpython/com.oracle.graal.python.cext/include/namespaceobject.h,python.copyright
 graalpython/com.oracle.graal.python.cext/include/object.h,python.copyright
 graalpython/com.oracle.graal.python.cext/include/objimpl.h,python.copyright
 graalpython/com.oracle.graal.python.cext/include/patchlevel.h,python.copyright