From: Javier Miranda <miranda@adacore.com>
Date: Tue, 6 May 2025 17:41:51 +0000 (+0000)
Subject: ada: Dispatching call with mutably tagged objects
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9403c84cc26f62d1c83ab8999bacd81d511347f4;p=thirdparty%2Fgcc.git

ada: Dispatching call with mutably tagged objects

The compiler rejects performing a dispatching call using the
prefix notation when the prefix of the call is a mutably
tagged class-wide type object.

gcc/ada/ChangeLog:

	* sem_ch4.adb (Try_Object_Operation): Handle mutably tagged
	class-wide type prefix.
---

diff --git a/gcc/ada/sem_ch4.adb b/gcc/ada/sem_ch4.adb
index 89beb2b9a7e..f5b05191035 100644
--- a/gcc/ada/sem_ch4.adb
+++ b/gcc/ada/sem_ch4.adb
@@ -10907,6 +10907,10 @@ package body Sem_Ch4 is
    --  Start of processing for Try_Object_Operation
 
    begin
+      if Is_Class_Wide_Equivalent_Type (Obj_Type) then
+         Obj_Type := Corresponding_Mutably_Tagged_Type (Obj_Type);
+      end if;
+
       Analyze_Expression (Obj);
 
       --  Analyze the actuals if node is known to be a subprogram call