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authorJedidiah Barber <contact@jedbarber.id.au>2025-01-14 01:54:17 +1300
committerJedidiah Barber <contact@jedbarber.id.au>2025-01-14 01:54:17 +1300
commit1ba99737bca1136170f04b3a46659deb042e3fcd (patch)
tree9b42991aa5aed8c76abcd1bf5ba980e249f0de28 /src/fltk-widgets-menus.adb
parent88ca2ea14ba6651404cd4ea347ac8f06afdd0558 (diff)
Fixed a number of issues with getting the Ada wrapper back given a C++ widget pointer
Diffstat (limited to 'src/fltk-widgets-menus.adb')
-rw-r--r--src/fltk-widgets-menus.adb18
1 files changed, 14 insertions, 4 deletions
diff --git a/src/fltk-widgets-menus.adb b/src/fltk-widgets-menus.adb
index be46a72..28653ec 100644
--- a/src/fltk-widgets-menus.adb
+++ b/src/fltk-widgets-menus.adb
@@ -6,8 +6,9 @@
with
- Interfaces.C.Strings,
- Ada.Unchecked_Deallocation;
+ Ada.Assertions,
+ Ada.Unchecked_Deallocation,
+ Interfaces.C.Strings;
use type
@@ -19,6 +20,11 @@ use type
package body FLTK.Widgets.Menus is
+ package Chk renames Ada.Assertions;
+
+
+
+
------------------------
-- Functions From C --
------------------------
@@ -272,11 +278,15 @@ package body FLTK.Widgets.Menus is
procedure Item_Hook
(M, U : in Storage.Integer_Address)
is
- Ada_Widget : access Widget'Class :=
- Widget_Convert.To_Pointer (Storage.To_Address (fl_widget_get_user_data (M)));
+ C_Ptr : Storage.Integer_Address := fl_widget_get_user_data (M);
+ Ada_Widget : access Widget'Class;
Action : Widget_Callback := Callback_Convert.To_Access (U);
begin
+ pragma Assert (C_Ptr /= Null_Pointer);
+ Ada_Widget := Widget_Convert.To_Pointer (Storage.To_Address (C_Ptr));
Action.all (Ada_Widget.all);
+ exception
+ when Chk.Assertion_Error => raise Internal_FLTK_Error;
end Item_Hook;