From: Piotr Trojanek <troja...@adacore.com>
Elaboration checks skip abstract subprogram declarations, which have no
body that could be examined. Now these checks also skip abstract
subprograms of a derived type, which have no body either.
gcc/ada/
* sem_elab.adb (Check_Overriding_Primitive): Prevent Corresponding_Body
to be called with entity of an abstract subprogram.
Tested on x86_64-pc-linux-gnu, committed on master.
---
gcc/ada/sem_elab.adb | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/gcc/ada/sem_elab.adb b/gcc/ada/sem_elab.adb
index 1e18b987863..dc81e47da9e 100644
--- a/gcc/ada/sem_elab.adb
+++ b/gcc/ada/sem_elab.adb
@@ -15263,10 +15263,13 @@ package body Sem_Elab is
-- Nothing to do for predefined primitives because they are
-- artifacts of tagged type expansion and cannot override source
-- primitives. Nothing to do as well for inherited primitives, as
- -- the check concerns overriding ones.
+ -- the check concerns overriding ones. Finally, nothing to do for
+ -- abstract subprograms, because they have no body that could be
+ -- examined.
if Is_Predefined_Dispatching_Operation (Prim)
or else not Is_Overriding_Subprogram (Prim)
+ or else Is_Abstract_Subprogram (Prim)
then
return;
end if;
--
2.40.0
