provide a fallback for xxmodule.c in case the buildir is not present

2 files changed, 384 insertions, 1 deletions

diff --git a/Lib/distutils/tests/test_build_ext.py b/Lib/distutils/tests/test_build_ext.py
index a1c236a..5dea4dd 100644
--- a/Lib/distutils/tests/test_build_ext.py
+++ b/Lib/distutils/tests/test_build_ext.py
@@ -19,7 +19,11 @@ ALREADY_TESTED = False
 
 def _get_source_filename():
     srcdir = sysconfig.get_config_var('srcdir')
-    return os.path.join(srcdir, 'Modules', 'xxmodule.c')
+    xxmodule = os.path.join(srcdir, 'Modules', 'xxmodule.c')
+    if not os.path.exists(xxmodule):
+        # local fallback
+        xxmodule = os.path.join(os.path.dirname(__file__), 'xxmodule.c')
+    return xxmodule
 
 class BuildExtTestCase(support.TempdirManager,
                        support.LoggingSilencer,
diff --git a/Lib/distutils/tests/xxmodule.c b/Lib/distutils/tests/xxmodule.c
new file mode 100644
index 0000000..6b498dd
--- /dev/null
+++ b/Lib/distutils/tests/xxmodule.c
@@ -0,0 +1,379 @@
+
+/* Use this file as a template to start implementing a module that
+   also declares object types. All occurrences of 'Xxo' should be changed
+   to something reasonable for your objects. After that, all other
+   occurrences of 'xx' should be changed to something reasonable for your
+   module. If your module is named foo your sourcefile should be named
+   foomodule.c.
+
+   You will probably want to delete all references to 'x_attr' and add
+   your own types of attributes instead.  Maybe you want to name your
+   local variables other than 'self'.  If your object type is needed in
+   other files, you'll have to create a file "foobarobject.h"; see
+   intobject.h for an example. */
+
+/* Xxo objects */
+
+#include "Python.h"
+
+static PyObject *ErrorObject;
+
+typedef struct {
+	PyObject_HEAD
+	PyObject	*x_attr;	/* Attributes dictionary */
+} XxoObject;
+
+static PyTypeObject Xxo_Type;
+
+#define XxoObject_Check(v)	(Py_TYPE(v) == &Xxo_Type)
+
+static XxoObject *
+newXxoObject(PyObject *arg)
+{
+	XxoObject *self;
+	self = PyObject_New(XxoObject, &Xxo_Type);
+	if (self == NULL)
+		return NULL;
+	self->x_attr = NULL;
+	return self;
+}
+
+/* Xxo methods */
+
+static void
+Xxo_dealloc(XxoObject *self)
+{
+	Py_XDECREF(self->x_attr);
+	PyObject_Del(self);
+}
+
+static PyObject *
+Xxo_demo(XxoObject *self, PyObject *args)
+{
+	if (!PyArg_ParseTuple(args, ":demo"))
+		return NULL;
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+
+static PyMethodDef Xxo_methods[] = {
+	{"demo",	(PyCFunction)Xxo_demo,	METH_VARARGS,
+		PyDoc_STR("demo() -> None")},
+	{NULL,		NULL}		/* sentinel */
+};
+
+static PyObject *
+Xxo_getattr(XxoObject *self, char *name)
+{
+	if (self->x_attr != NULL) {
+		PyObject *v = PyDict_GetItemString(self->x_attr, name);
+		if (v != NULL) {
+			Py_INCREF(v);
+			return v;
+		}
+	}
+	return Py_FindMethod(Xxo_methods, (PyObject *)self, name);
+}
+
+static int
+Xxo_setattr(XxoObject *self, char *name, PyObject *v)
+{
+	if (self->x_attr == NULL) {
+		self->x_attr = PyDict_New();
+		if (self->x_attr == NULL)
+			return -1;
+	}
+	if (v == NULL) {
+		int rv = PyDict_DelItemString(self->x_attr, name);
+		if (rv < 0)
+			PyErr_SetString(PyExc_AttributeError,
+			        "delete non-existing Xxo attribute");
+		return rv;
+	}
+	else
+		return PyDict_SetItemString(self->x_attr, name, v);
+}
+
+static PyTypeObject Xxo_Type = {
+	/* The ob_type field must be initialized in the module init function
+	 * to be portable to Windows without using C++. */
+	PyVarObject_HEAD_INIT(NULL, 0)
+	"xxmodule.Xxo",		/*tp_name*/
+	sizeof(XxoObject),	/*tp_basicsize*/
+	0,			/*tp_itemsize*/
+	/* methods */
+	(destructor)Xxo_dealloc, /*tp_dealloc*/
+	0,			/*tp_print*/
+	(getattrfunc)Xxo_getattr, /*tp_getattr*/
+	(setattrfunc)Xxo_setattr, /*tp_setattr*/
+	0,			/*tp_compare*/
+	0,			/*tp_repr*/
+	0,			/*tp_as_number*/
+	0,			/*tp_as_sequence*/
+	0,			/*tp_as_mapping*/
+	0,			/*tp_hash*/
+        0,                      /*tp_call*/
+        0,                      /*tp_str*/
+        0,                      /*tp_getattro*/
+        0,                      /*tp_setattro*/
+        0,                      /*tp_as_buffer*/
+        Py_TPFLAGS_DEFAULT,     /*tp_flags*/
+        0,                      /*tp_doc*/
+        0,                      /*tp_traverse*/
+        0,                      /*tp_clear*/
+        0,                      /*tp_richcompare*/
+        0,                      /*tp_weaklistoffset*/
+        0,                      /*tp_iter*/
+        0,                      /*tp_iternext*/
+        0,                      /*tp_methods*/
+        0,                      /*tp_members*/
+        0,                      /*tp_getset*/
+        0,                      /*tp_base*/
+        0,                      /*tp_dict*/
+        0,                      /*tp_descr_get*/
+        0,                      /*tp_descr_set*/
+        0,                      /*tp_dictoffset*/
+        0,                      /*tp_init*/
+        0,                      /*tp_alloc*/
+        0,                      /*tp_new*/
+        0,                      /*tp_free*/
+        0,                      /*tp_is_gc*/
+};
+/* --------------------------------------------------------------------- */
+
+/* Function of two integers returning integer */
+
+PyDoc_STRVAR(xx_foo_doc,
+"foo(i,j)\n\
+\n\
+Return the sum of i and j.");
+
+static PyObject *
+xx_foo(PyObject *self, PyObject *args)
+{
+	long i, j;
+	long res;
+	if (!PyArg_ParseTuple(args, "ll:foo", &i, &j))
+		return NULL;
+	res = i+j; /* XXX Do something here */
+	return PyInt_FromLong(res);
+}
+
+
+/* Function of no arguments returning new Xxo object */
+
+static PyObject *
+xx_new(PyObject *self, PyObject *args)
+{
+	XxoObject *rv;
+
+	if (!PyArg_ParseTuple(args, ":new"))
+		return NULL;
+	rv = newXxoObject(args);
+	if (rv == NULL)
+		return NULL;
+	return (PyObject *)rv;
+}
+
+/* Example with subtle bug from extensions manual ("Thin Ice"). */
+
+static PyObject *
+xx_bug(PyObject *self, PyObject *args)
+{
+	PyObject *list, *item;
+
+	if (!PyArg_ParseTuple(args, "O:bug", &list))
+		return NULL;
+
+	item = PyList_GetItem(list, 0);
+	/* Py_INCREF(item); */
+	PyList_SetItem(list, 1, PyInt_FromLong(0L));
+	PyObject_Print(item, stdout, 0);
+	printf("\n");
+	/* Py_DECREF(item); */
+
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+
+/* Test bad format character */
+
+static PyObject *
+xx_roj(PyObject *self, PyObject *args)
+{
+	PyObject *a;
+	long b;
+	if (!PyArg_ParseTuple(args, "O#:roj", &a, &b))
+		return NULL;
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+
+
+/* ---------- */
+
+static PyTypeObject Str_Type = {
+	/* The ob_type field must be initialized in the module init function
+	 * to be portable to Windows without using C++. */
+	PyVarObject_HEAD_INIT(NULL, 0)
+	"xxmodule.Str",		/*tp_name*/
+	0,			/*tp_basicsize*/
+	0,			/*tp_itemsize*/
+	/* methods */
+	0,			/*tp_dealloc*/
+	0,			/*tp_print*/
+	0,			/*tp_getattr*/
+	0,			/*tp_setattr*/
+	0,			/*tp_compare*/
+	0,			/*tp_repr*/
+	0,			/*tp_as_number*/
+	0,			/*tp_as_sequence*/
+	0,			/*tp_as_mapping*/
+	0,			/*tp_hash*/
+	0,			/*tp_call*/
+	0,			/*tp_str*/
+	0,			/*tp_getattro*/
+	0,			/*tp_setattro*/
+	0,			/*tp_as_buffer*/
+	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
+	0,			/*tp_doc*/
+	0,			/*tp_traverse*/
+	0,			/*tp_clear*/
+	0,			/*tp_richcompare*/
+	0,			/*tp_weaklistoffset*/
+	0,			/*tp_iter*/
+	0,			/*tp_iternext*/
+	0,			/*tp_methods*/
+	0,			/*tp_members*/
+	0,			/*tp_getset*/
+	0, /* see initxx */	/*tp_base*/
+	0,			/*tp_dict*/
+	0,			/*tp_descr_get*/
+	0,			/*tp_descr_set*/
+	0,			/*tp_dictoffset*/
+	0,			/*tp_init*/
+	0,			/*tp_alloc*/
+	0,			/*tp_new*/
+	0,			/*tp_free*/
+	0,			/*tp_is_gc*/
+};
+
+/* ---------- */
+
+static PyObject *
+null_richcompare(PyObject *self, PyObject *other, int op)
+{
+	Py_INCREF(Py_NotImplemented);
+	return Py_NotImplemented;
+}
+
+static PyTypeObject Null_Type = {
+	/* The ob_type field must be initialized in the module init function
+	 * to be portable to Windows without using C++. */
+	PyVarObject_HEAD_INIT(NULL, 0)
+	"xxmodule.Null",	/*tp_name*/
+	0,			/*tp_basicsize*/
+	0,			/*tp_itemsize*/
+	/* methods */
+	0,			/*tp_dealloc*/
+	0,			/*tp_print*/
+	0,			/*tp_getattr*/
+	0,			/*tp_setattr*/
+	0,			/*tp_compare*/
+	0,			/*tp_repr*/
+	0,			/*tp_as_number*/
+	0,			/*tp_as_sequence*/
+	0,			/*tp_as_mapping*/
+	0,			/*tp_hash*/
+	0,			/*tp_call*/
+	0,			/*tp_str*/
+	0,			/*tp_getattro*/
+	0,			/*tp_setattro*/
+	0,			/*tp_as_buffer*/
+	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
+	0,			/*tp_doc*/
+	0,			/*tp_traverse*/
+	0,			/*tp_clear*/
+	null_richcompare,	/*tp_richcompare*/
+	0,			/*tp_weaklistoffset*/
+	0,			/*tp_iter*/
+	0,			/*tp_iternext*/
+	0,			/*tp_methods*/
+	0,			/*tp_members*/
+	0,			/*tp_getset*/
+	0, /* see initxx */	/*tp_base*/
+	0,			/*tp_dict*/
+	0,			/*tp_descr_get*/
+	0,			/*tp_descr_set*/
+	0,			/*tp_dictoffset*/
+	0,			/*tp_init*/
+	0,			/*tp_alloc*/
+	0, /* see initxx */	/*tp_new*/
+	0,			/*tp_free*/
+	0,			/*tp_is_gc*/
+};
+
+
+/* ---------- */
+
+
+/* List of functions defined in the module */
+
+static PyMethodDef xx_methods[] = {
+	{"roj",		xx_roj,		METH_VARARGS,
+		PyDoc_STR("roj(a,b) -> None")},
+	{"foo",		xx_foo,		METH_VARARGS,
+	 	xx_foo_doc},
+	{"new",		xx_new,		METH_VARARGS,
+		PyDoc_STR("new() -> new Xx object")},
+	{"bug",		xx_bug,		METH_VARARGS,
+		PyDoc_STR("bug(o) -> None")},
+	{NULL,		NULL}		/* sentinel */
+};
+
+PyDoc_STRVAR(module_doc,
+"This is a template module just for instruction.");
+
+/* Initialization function for the module (*must* be called initxx) */
+
+PyMODINIT_FUNC
+initxx(void)
+{
+	PyObject *m;
+
+	/* Due to cross platform compiler issues the slots must be filled
+	 * here. It's required for portability to Windows without requiring
+	 * C++. */
+	Null_Type.tp_base = &PyBaseObject_Type;
+	Null_Type.tp_new = PyType_GenericNew;
+	Str_Type.tp_base = &PyUnicode_Type;
+
+	/* Finalize the type object including setting type of the new type
+	 * object; doing it here is required for portability, too. */
+	if (PyType_Ready(&Xxo_Type) < 0)
+		return;
+
+	/* Create the module and add the functions */
+	m = Py_InitModule3("xx", xx_methods, module_doc);
+	if (m == NULL)
+		return;
+
+	/* Add some symbolic constants to the module */
+	if (ErrorObject == NULL) {
+		ErrorObject = PyErr_NewException("xx.error", NULL, NULL);
+		if (ErrorObject == NULL)
+			return;
+	}
+	Py_INCREF(ErrorObject);
+	PyModule_AddObject(m, "error", ErrorObject);
+
+	/* Add Str */
+	if (PyType_Ready(&Str_Type) < 0)
+		return;
+	PyModule_AddObject(m, "Str", (PyObject *)&Str_Type);
+
+	/* Add Null */
+	if (PyType_Ready(&Null_Type) < 0)
+		return;
+	PyModule_AddObject(m, "Null", (PyObject *)&Null_Type);
+}