Remove a special case from _cffi_backend, and replace it with a general

solution: ffi.addressof(), only for structs or unions.

1 files changed, 6 insertions, 0 deletions

diff --git a/cffi/backend_ctypes.py b/cffi/backend_ctypes.py
index 3f54869..17b9c36 100644
--- a/cffi/backend_ctypes.py
+++ b/cffi/backend_ctypes.py
@@ -1044,6 +1044,12 @@ class CTypesBackend(object):
     def getcname(self, BType, replace_with):
         return BType._get_c_name(replace_with)
 
+    def addressof(self, BTypePtr, cdata):
+        if not isinstance(cdata, CTypesBaseStructOrUnion):
+            raise TypeError("expected a <cdata 'struct-or-union'>")
+        ptr = ctypes.pointer(type(cdata)._to_ctypes(cdata))
+        return BTypePtr._from_ctypes(ptr)
+
 
 class CTypesLibrary(object):