sem_ch6.adb (Conforming_Types): If the types are anonymous access types check whether...

2005-07-04  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Conforming_Types): If the types are anonymous access
	types check whether some designated type is a limited view, and use
	the non-limited view if available.

From-SVN: r101588

diff --git a/gcc/ada/sem_ch6.adb b/gcc/ada/sem_ch6.adb
index 7d31004651c233b2b1421ae2a5ed28f8d107f5ca..822446e910910c4014e0db4014f0137d359bb1cf 100644 (file)
--- a/gcc/ada/sem_ch6.adb
+++ b/gcc/ada/sem_ch6.adb
@@ -3326,19 +3326,27 @@ package body Sem_Ch6 is
             Desig_1 := Directly_Designated_Type (Type_1);
 
             --  An access parameter can designate an incomplete type
+            --  If the incomplete type is the limited view of a type
+            --  from a limited_with_clause, check whether the non-limited
+            --  view is available.
 
-            if Ekind (Desig_1) = E_Incomplete_Type
-              and then Present (Full_View (Desig_1))
-            then
-               Desig_1 := Full_View (Desig_1);
+            if Ekind (Desig_1) = E_Incomplete_Type then
+               if Present (Full_View (Desig_1)) then
+                  Desig_1 := Full_View (Desig_1);
+
+               elsif Present (Non_Limited_View (Desig_1)) then
+                  Desig_1 := Non_Limited_View (Desig_1);
+               end if;
             end if;
 
             Desig_2 := Directly_Designated_Type (Type_2);
 
-            if Ekind (Desig_2) = E_Incomplete_Type
-              and then Present (Full_View (Desig_2))
-            then
-               Desig_2 := Full_View (Desig_2);
+            if Ekind (Desig_2) = E_Incomplete_Type then
+               if Present (Full_View (Desig_2)) then
+                  Desig_2 := Full_View (Desig_2);
+               elsif Present (Non_Limited_View (Desig_2)) then
+                  Desig_2 := Non_Limited_View (Desig_2);
+               end if;
             end if;
 
             --  The context is an instance association for a formal