* [Ada] Create internal type for null array aggregate as an itype
@ 2022-09-05 7:26 Marc Poulhiès
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From: Marc Poulhiès @ 2022-09-05 7:26 UTC (permalink / raw)
To: gcc-patches; +Cc: Piotr Trojanek
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Internal type created for the null array aggregate of Ada 2022 was
created as a temporary entity and then flagged as internal, but it is
better to create this type directly as an itype.
In particular, when the null array aggregate appears in a spec
expression, its type declaration will not be attached to the AST.
An itype will have Associated_Node_For_Itype, so that the context of
the type can be recovered, which is what GNATprove does.
Tested on x86_64-pc-linux-gnu, committed on trunk
gcc/ada/
* sem_aggr.adb (Resolve_Null_Array_Aggregate): Create internal
type for the aggregate as an itype.
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diff --git a/gcc/ada/sem_aggr.adb b/gcc/ada/sem_aggr.adb
--- a/gcc/ada/sem_aggr.adb
+++ b/gcc/ada/sem_aggr.adb
@@ -4088,7 +4088,10 @@ package body Sem_Aggr is
Index : Node_Id;
Lo, Hi : Node_Id;
Constr : constant List_Id := New_List;
- Subt : constant Entity_Id := Make_Temporary (Loc, 'S');
+ Subt : constant Entity_Id :=
+ Create_Itype (Ekind => E_Array_Subtype,
+ Related_Nod => N,
+ Suffix => 'S');
begin
-- Create a constrained subtype with null dimensions
@@ -4134,7 +4137,6 @@ package body Sem_Aggr is
Make_Index_Or_Discriminant_Constraint (Loc, Constr)));
Insert_Action (N, Decl);
- Set_Is_Internal (Subt);
Analyze (Decl);
Set_Etype (N, Subt);
Set_Compile_Time_Known_Aggregate (N);
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2022-09-05 7:26 [Ada] Create internal type for null array aggregate as an itype Marc Poulhiès
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