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diff -urN Zope-2.8.0-final.orig/lib/python/Acquisition/_Acquisition.c Zope-2.8.0-final/lib/python/Acquisition/_Acquisition.c
--- Zope-2.8.0-final.orig/lib/python/Acquisition/_Acquisition.c 2005-06-11 08:24:02.000000000 +0200
+++ Zope-2.8.0-final/lib/python/Acquisition/_Acquisition.c 2005-06-17 16:26:00.742556205 +0200
@@ -410,6 +410,64 @@
int explicit, int containment);
static PyObject *
+Wrapper_GetAttr(PyObject *self, PyObject *attr_name, PyObject *orig)
+{
+ /* This function retrieves an attribute from an object by PyObject_GetAttr.
+
+ The main difference between Wrapper_GetAttr and PyObject_GetAttr is that
+ Wrapper_GetAttr calls _aq_dynamic to generate an attribute dynamically, if
+ the attribute is not found.
+ */
+ PyObject *r, *v, *tb;
+ PyObject *d, *m;
+ PyObject *o;
+
+ if (isWrapper (self))
+ o = WRAPPER(self)->obj;
+ else
+ o = self;
+
+ /* Try to get an attribute in the normal way first. */
+ r = PyObject_GetAttr(o, attr_name);
+ if (r)
+ return r;
+
+ /* If an unexpected error happens, return immediately. */
+ PyErr_Fetch(&r,&v,&tb);
+ if (r != PyExc_AttributeError)
+ {
+ PyErr_Restore(r,v,tb);
+ return NULL;
+ }
+
+ /* Try to get _aq_dynamic. */
+ m = PyObject_GetAttrString(o, "_aq_dynamic");
+ if (! m) {
+ PyErr_Restore(r,v,tb);
+ return NULL;
+ }
+
+ /* Call _aq_dynamic in the context of the original acquisition wrapper. */
+ if (PyECMethod_Check(m) && PyECMethod_Self(m)==o)
+ ASSIGN(m,PyECMethod_New(m,OBJECT(self)));
+ else if (has__of__(m)) ASSIGN(m,__of__(m,OBJECT(self)));
+ d = PyObject_CallFunction(m, "O", attr_name);
+ Py_DECREF(m);
+
+ /* In the case of None, assume that the attribute is not found. */
+ if (d == Py_None) {
+ Py_DECREF(d);
+ PyErr_Restore(r,v,tb);
+ return NULL;
+ }
+
+ Py_XDECREF(r);
+ Py_XDECREF(v);
+ Py_XDECREF(tb);
+ return d;
+}
+
+static PyObject *
Wrapper_findattr(Wrapper *self, PyObject *oname,
PyObject *filter, PyObject *extra, PyObject *orig,
int sob, int sco, int explicit, int containment)
@@ -476,7 +534,7 @@
Py_XDECREF(r); Py_XDECREF(v); Py_XDECREF(tb);
r=NULL;
}
- else if ((r=PyObject_GetAttr(self->obj,oname)))
+ else if ((r=Wrapper_GetAttr(OBJECT(self),oname,orig)))
{
if (r==Acquired)
{
@@ -550,7 +608,7 @@
}
else
{
- if ((r=PyObject_GetAttr(self->container,oname))) {
+ if ((r=Wrapper_GetAttr(self->container,oname,orig))) {
if (r == Acquired) {
Py_DECREF(r);
}
@@ -587,7 +645,7 @@
Wrapper_getattro(Wrapper *self, PyObject *oname)
{
if (self->obj || self->container)
- return Wrapper_findattr(self, oname, NULL, NULL, NULL, 1, 1, 0, 0);
+ return Wrapper_findattr(self, oname, NULL, NULL, OBJECT(self), 1, 1, 0, 0);
/* Maybe we are getting initialized? */
return Py_FindAttr(OBJECT(self),oname);
@@ -604,7 +662,7 @@
return Py_FindAttr(OBJECT(self),oname);
if (self->obj || self->container)
- return Wrapper_findattr(self, oname, NULL, NULL, NULL, 1, 0, 0, 0);
+ return Wrapper_findattr(self, oname, NULL, NULL, OBJECT(self), 1, 0, 0, 0);
/* Maybe we are getting initialized? */
return Py_FindAttr(OBJECT(self),oname);