From: Piotr Trojanek <troja...@adacore.com>
Pragma Obsolescent appearing before declaration was putting the
Obsolescent flag on the Standard package, which is certainly wrong. The
problem was that we relied on the Find_Lib_Unit_Name routine without
sanitizing the pragma placement with Check_Valid_Library_Unit_Pragma.
Part of cleaning up the warnings machinery to better handle references
to unset objects.
gcc/ada/
* sem_prag.adb (Analyze_Pragma [Pragma_Obsolescent]): Reject
misplaced pragma.
Tested on x86_64-pc-linux-gnu, committed on master.
---
gcc/ada/sem_prag.adb | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/gcc/ada/sem_prag.adb b/gcc/ada/sem_prag.adb
index 60ea681001a..471ef870fa7 100644
--- a/gcc/ada/sem_prag.adb
+++ b/gcc/ada/sem_prag.adb
@@ -20502,10 +20502,16 @@ package body Sem_Prag is
if No (Decl) then
- -- First case: library level compilation unit declaration with
+ -- Case 0: library level compilation unit declaration with
+ -- the pragma preceding the declaration.
+
+ if Nkind (Parent (N)) = N_Compilation_Unit then
+ Pragma_Misplaced;
+
+ -- Case 1: library level compilation unit declaration with
-- the pragma immediately following the declaration.
- if Nkind (Parent (N)) = N_Compilation_Unit_Aux then
+ elsif Nkind (Parent (N)) = N_Compilation_Unit_Aux then
Set_Obsolescent
(Defining_Entity (Unit (Parent (Parent (N)))));
return;
--
2.34.1
