MAINT: refactor from review

Cython/Compiler/ParseTreeTransforms.py

@@ -2245,7 +2245,14 @@ class ReplacePropertyNode(CythonTransform):
             return node
         # transform @property decorators on ctypedef class functions
         for decorator_node in node.decorators[::-1]:
-            decorator = decorator_node.decorator
+            _node = self.analyse_decorator(node, decorator_node.decorator)
+            if _node:
+                node.decorators.remove(decorator_node)
+                node = _node
+                break
+        return node
+
+    def analyse_decorator(self, node, decorator):
         if decorator.is_name and decorator.name == 'property':
             if len(node.decorators) > 1:
                 return self._reject_decorated_property(node, decorator_node)
@@ -2253,10 +2260,8 @@ class ReplacePropertyNode(CythonTransform):
             node.type.is_cgetter = True
             # Add a func_cname to be output instead of the attribute
             node.entry.func_cname = node.body.stats[0].value.function.name
-                # done - remove the decorator node
-                node.decorators.remove(decorator_node)
-                return [node]
-        return [node]
+            return node
+        return None
 
 
 class FindInvalidUseOfFusedTypes(CythonTransform):