Compiler emits a warning on a selected component that is an actual in a
function call, when the enclosing object has no explicit initialization
and no discriminants, but the component type itself has partial
initialization. Such a warning should be suppressed.
Tested on x86_64-pc-linux-gnu, committed on trunk
gcc/ada/
* sem_warn.adb (Check_References): Do not emit warning on a
selected component when enclosing type has no discriminant and
type of component has partial initialization.diff --git a/gcc/ada/sem_warn.adb b/gcc/ada/sem_warn.adb
--- a/gcc/ada/sem_warn.adb
+++ b/gcc/ada/sem_warn.adb
@@ -1523,6 +1523,17 @@ package body Sem_Warn is
-- uninitialized component to get a better message.
elsif Nkind (Parent (UR)) = N_Selected_Component then
+ -- Suppress possibly superfluous warning if component
+ -- is known to exist and is partially initialized.
+
+ if not Has_Discriminants (Etype (E1))
+ and then
+ Is_Partially_Initialized_Type
+ (Etype (Parent (UR)), False)
+ then
+ goto Continue;
+ end if;
+
Error_Msg_Node_2 := Selector_Name (Parent (UR));
if not Comes_From_Source (Parent (UR)) then
