GObject.Value: deprecate calling get/set_boxed on a non-boxed value

This wasn't documented but worked in most cases. Make sure no-one is depending
on it in the long run.

1 files changed, 6 insertions, 0 deletions

diff --git a/gi/overrides/GObject.py b/gi/overrides/GObject.py
index 938a19a8..4cc08a9a 100644
--- a/gi/overrides/GObject.py
+++ b/gi/overrides/GObject.py
@@ -210,12 +210,18 @@ class Value(GObjectModule.Value):
                 self.set_value(py_value)
 
     def set_boxed(self, boxed):
+        if not self.g_type.is_a(TYPE_BOXED):
+            warnings.warn('Calling set_boxed() on a non-boxed type deprecated',
+                          PyGIDeprecationWarning, stacklevel=2)
         # Workaround the introspection marshalers inability to know
         # these methods should be marshaling boxed types. This is because
         # the type information is stored on the GValue.
         _gi._gvalue_set(self, boxed)
 
     def get_boxed(self):
+        if not self.g_type.is_a(TYPE_BOXED):
+            warnings.warn('Calling get_boxed() on a non-boxed type deprecated',
+                          PyGIDeprecationWarning, stacklevel=2)
         return _gi._gvalue_get(self)
 
     def set_value(self, py_value):