[Zope-Checkins] CVS: Zope3/lib/python/Zope/ContextWrapper - wrapper.c:1.12.2.4

[Fred Drake Jr]

Update of /cvs-repository/Zope3/lib/python/Zope/ContextWrapper
In directory cvs.zope.org:/tmp/cvs-serv300

Modified Files:
      Tag: Zope-3x-branch
	wrapper.c 
Log Message:
Add getinnerwrapper().

=== Zope3/lib/python/Zope/ContextWrapper/wrapper.c 1.12.2.3 => 1.12.2.4 ===
 
 static PyObject *
+api_getinnerwrapper(PyObject *obj)
+{
+    PyObject *temp;
+    if (obj == NULL)
+        return missing_wrapper("getinnercontext");
+    if (Wrapper_Check(obj)) {
+        temp = Wrapper_GetObject(obj);
+        while (Wrapper_Check(temp)) {
+            obj = temp;
+            temp = Wrapper_GetObject(obj);
+        }
+    }
+    else
+        return NULL;
+    return obj;
+}
+
+static PyObject *
 api_getdict(PyObject *wrapper)
 {
     if (wrapper == NULL)
@@ -503,6 +521,7 @@
     api_getbaseobject,
     api_getcontext,
     api_getinnercontext,
+    api_getinnerwrapper,
     api_getdict,
     api_getdictcreate,
     api_setobject,
@@ -588,6 +607,24 @@
 }
 
 static char
+getinnerwrapper__doc__[] =
+"getinnerwrapper(wrapper) --> object | None\n"
+"\n"
+"Return the innermost wrapper in a chain of wrappers with 'wrapper' at the\n"
+"head, or None if there isn't one.  Returns None if 'wrapper' isn't a\n"
+"wrapper at all.";
+
+static PyObject *
+wrapper_getinnerwrapper(PyObject *unused, PyObject *obj)
+{
+    PyObject *result = api_getinnerwrapper(obj);
+    if (result == NULL)
+        result = obj;
+    Py_INCREF(result);
+    return result;
+}
+
+static char
 getdict__doc__[] =
 "getdict(wrapper) -> dict or None\n"
 "\n"
@@ -686,6 +723,8 @@
      getcontext__doc__},
     {"getinnercontext", wrapper_getinnercontext, METH_O,
      getinnercontext__doc__},
+    {"getinnerwrapper", wrapper_getinnerwrapper, METH_O,
+     getinnerwrapper__doc__},
     {"getdict",         wrapper_getdict,         METH_O,
      getdict__doc__},
     {"getdictcreate",   wrapper_getdictcreate,   METH_O,