From: Piotr Trojanek <trojanek@adacore.com>
Date: Fri, 12 May 2023 11:10:37 +0000 (+0200)
Subject: ada: Reject aspect Always_Terminates on functions and generic functions
X-Git-Tag: basepoints/gcc-15~8290
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fa5aa5d942ace0bb935b88db53542d90b7d3a4cc;p=thirdparty%2Fgcc.git

ada: Reject aspect Always_Terminates on functions and generic functions

The recently added aspect Always_Terminates is only allowed on
procedures.

gcc/ada/

	* sem_prag.adb (Analyze_Pragma): Reject pragma Always_Terminates when
	it applies to a function or generic function.
---

diff --git a/gcc/ada/sem_prag.adb b/gcc/ada/sem_prag.adb
index 1fa946439ee2..0febc445b353 100644
--- a/gcc/ada/sem_prag.adb
+++ b/gcc/ada/sem_prag.adb
@@ -13376,6 +13376,19 @@ package body Sem_Prag is
 
             Spec_Id := Unique_Defining_Entity (Subp_Decl);
 
+            --  Pragma Always_Terminates is not allowed on functions
+
+            if Ekind (Spec_Id) = E_Function then
+               Error_Msg_N (Fix_Error
+                 ("pragma % cannot apply to function"), N);
+                  return;
+
+            elsif Ekind (Spec_Id) = E_Generic_Function then
+               Error_Msg_N (Fix_Error
+                 ("pragma % cannot apply to generic function"), N);
+               return;
+            end if;
+
             --  A pragma that applies to a Ghost entity becomes Ghost for the
             --  purposes of legality checks and removal of ignored Ghost code.