[transformer] Look up callback types in the full name set, not just typedefs

When looking up GINames, we should look in _names.names.

1 files changed, 4 insertions, 2 deletions

diff --git a/giscanner/transformer.py b/giscanner/transformer.py
index a131e3c1..bc5d943d 100644
--- a/giscanner/transformer.py
+++ b/giscanner/transformer.py
@@ -267,8 +267,10 @@ class Transformer(object):
                       symbol.ident)
 
     def _type_is_callback(self, type):
-        if (isinstance(type, Callback) or
-            isinstance(self._typedefs_ns.get(type.name), Callback)):
+        if isinstance(type, Callback):
+            return True
+        node = self._names.names.get(type.name)
+        if node and isinstance(node[1], Callback):
             return True
         return False