[Ada] Fix the parsing for delta aggregate

In Ada 2022, delta aggregate must use parentheses not square brackets
except array delta aggregates.

gcc/ada/

	* gen_il-gen-gen_nodes.adb (Gen_IL.Gen.Gen_Nodes): Add
	Is_Homogeneous_Aggregate field for N_Delta_Aggregate nodes.
	* par-ch4.adb (P_Aggregate_Or_Paren_Expr): Minor reformatting.
	* sem_aggr.adb (Resolve_Delta_Aggregate): Reject square brackets
	for record aggregate.
	(Resolve_Record_Aggregate): Uniformise error message.

diff --git a/gcc/ada/gen_il-gen-gen_nodes.adb b/gcc/ada/gen_il-gen-gen_nodes.adb
index 7ebc02eb8d92beb72f7d902dc30b1ea906c31cc7..96e1c761d9202b828d5edc7d9b779622cf6bbc0a 100644 (file)
--- a/gcc/ada/gen_il-gen-gen_nodes.adb
+++ b/gcc/ada/gen_il-gen-gen_nodes.adb
@@ -509,6 +509,7 @@ begin -- Gen_IL.Gen.Gen_Nodes
 
    Cc (N_Delta_Aggregate, N_Subexpr,
        (Sy (Expression, Node_Id, Default_Empty),
+        Sy (Is_Homogeneous_Aggregate, Flag),
         Sy (Component_Associations, List_Id, Default_No_List)));
 
    Cc (N_Extension_Aggregate, N_Subexpr,

diff --git a/gcc/ada/par-ch4.adb b/gcc/ada/par-ch4.adb
index 0895be10655953efc5b4907ef0fdbb2406a58395..bfefd144f21efbb637a5d4e9a6248d08f0be6f0c 100644 (file)
--- a/gcc/ada/par-ch4.adb
+++ b/gcc/ada/par-ch4.adb
@@ -1682,6 +1682,7 @@ package body Ch4 is
 
       case Start_Token is
          when Tok_Left_Bracket =>
+
             Set_Component_Associations (Aggregate_Node, Assoc_List);
             Set_Is_Homogeneous_Aggregate (Aggregate_Node);
             T_Right_Bracket;

diff --git a/gcc/ada/sem_aggr.adb b/gcc/ada/sem_aggr.adb
index 4796ae15ae29b5739744cbb76e7358c2d6c544d8..e349128e6a293383f3af30f8dbba8fe63b9462f8 100644 (file)
--- a/gcc/ada/sem_aggr.adb
+++ b/gcc/ada/sem_aggr.adb
@@ -3291,6 +3291,15 @@ package body Sem_Aggr is
       if Is_Array_Type (Typ) then
          Resolve_Delta_Array_Aggregate (N, Typ);
       else
+
+         --  Delta aggregates for record types must use parentheses,
+         --  not square brackets.
+
+         if Is_Homogeneous_Aggregate (N) then
+            Error_Msg_N
+              ("delta aggregates for record types must use (), not '[']", N);
+         end if;
+
          Resolve_Delta_Record_Aggregate (N, Typ);
       end if;
 
@@ -4916,7 +4925,7 @@ package body Sem_Aggr is
       if Nkind (N) = N_Aggregate
         and then Is_Homogeneous_Aggregate (N)
       then
-         Error_Msg_N ("record aggregate must use () and not '[']", N);
+         Error_Msg_N ("record aggregate must use (), not '[']", N);
          return;
       end if;