From: Piotr Trojanek <troja...@adacore.com> A code cleanup in routine intended to be used from DGB, suggested by running GNATcheck rule Boolean_Negations. However, this code can be tuned to protect against more illegal uses.
gcc/ada/ChangeLog: * exp_disp.adb (Write_DT): Add guards that prevent crashes on illegal node numbers. Tested on x86_64-pc-linux-gnu, committed on master. --- gcc/ada/exp_disp.adb | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/gcc/ada/exp_disp.adb b/gcc/ada/exp_disp.adb index f45c32356a9..6d0f2c87017 100644 --- a/gcc/ada/exp_disp.adb +++ b/gcc/ada/exp_disp.adb @@ -8674,9 +8674,10 @@ package body Exp_Disp is begin -- Protect this procedure against wrong usage. Required because it will - -- be used directly from GDB + -- be used directly from GDB. - if not (Typ <= Last_Node_Id) + if Typ not in First_Node_Id .. Last_Node_Id + or else Nkind (Typ) not in N_Entity or else not Is_Tagged_Type (Typ) then Write_Str ("wrong usage: Write_DT must be used with tagged types"); -- 2.43.0