vhdl-sem_inst: add instantiate_interface_package_declaration

3 files changed, 50 insertions, 2 deletions

diff --git a/src/vhdl/vhdl-sem_decls.adb b/src/vhdl/vhdl-sem_decls.adb
index a9c686707..974cc21d8 100644
--- a/src/vhdl/vhdl-sem_decls.adb
+++ b/src/vhdl/vhdl-sem_decls.adb
@@ -517,7 +517,9 @@ package body Vhdl.Sem_Decls is
          --  Not yet fully supported - need to check the instance.
       end if;
 
-      Sem_Inst.Instantiate_Package_Declaration (Inter, Pkg);
+      --  Create generics and declarations for the interface package so that
+      --  references are resolved to those declarations.
+      Sem_Inst.Instantiate_Interface_Package_Declaration (Inter, Pkg);
 
       Sem_Scopes.Add_Name (Inter);
       Set_Is_Within_Flag (Inter, True);
diff --git a/src/vhdl/vhdl-sem_inst.adb b/src/vhdl/vhdl-sem_inst.adb
index 4e7e1aa42..db34e5f39 100644
--- a/src/vhdl/vhdl-sem_inst.adb
+++ b/src/vhdl/vhdl-sem_inst.adb
@@ -1100,6 +1100,43 @@ package body Vhdl.Sem_Inst is
       Restore_Origin (Mark);
    end Instantiate_Subprogram_Declaration;
 
+   procedure Instantiate_Interface_Package_Declaration (Inter : Iir; Pkg : Iir)
+   is
+      Header : constant Iir := Get_Package_Header (Pkg);
+      Prev_Instance_File : constant Source_File_Entry := Instance_File;
+      Mark : constant Instance_Index_Type := Prev_Instance_Table.Last;
+      Prev_Within_Shared_Instance : constant Boolean :=
+        Is_Within_Shared_Instance;
+   begin
+      Create_Relocation (Inter, Pkg);
+      Set_Instance_Source_File (Inter, Instance_File);
+
+      --  Be sure Get_Origin_Priv can be called on existing nodes.
+      Expand_Origin_Table;
+
+      --  For Parent: the instance of PKG is INST.
+      Set_Origin (Pkg, Inter);
+
+      Is_Within_Shared_Instance := not Get_Macro_Expanded_Flag (Pkg);
+
+      --  Manually instantiate the package declaration.
+      Set_Generic_Chain
+        (Inter, Instantiate_Generic_Chain (Inter, Get_Generic_Chain (Header)));
+      Instantiate_Generic_Map_Chain (Inter, Pkg);
+      Set_Declaration_Chain
+        (Inter, Instantiate_Iir_Chain (Get_Declaration_Chain (Pkg)));
+      Set_Attribute_Value_Chain
+        (Inter, Instantiate_Iir (Get_Attribute_Value_Chain (Pkg), True));
+      Instantiate_Attribute_Value_Chain (Inter);
+
+      Set_Origin (Pkg, Null_Iir);
+
+      Instance_File := Prev_Instance_File;
+      Restore_Origin (Mark);
+
+      Is_Within_Shared_Instance := Prev_Within_Shared_Instance;
+   end Instantiate_Interface_Package_Declaration;
+
    procedure Instantiate_Package_Declaration (Inst : Iir; Pkg : Iir)
    is
       Header : constant Iir := Get_Package_Header (Pkg);
diff --git a/src/vhdl/vhdl-sem_inst.ads b/src/vhdl/vhdl-sem_inst.ads
index 6d8a76300..1099479de 100644
--- a/src/vhdl/vhdl-sem_inst.ads
+++ b/src/vhdl/vhdl-sem_inst.ads
@@ -21,7 +21,16 @@ package Vhdl.Sem_Inst is
    --  If N is not an instance, this function returns Null_Iir.
    function Get_Origin (N : Iir) return Iir;
 
-   --  Create declaration chain and generic declarations for INST from PKG.
+   --  Create declaration chain and generic declarations for INTER from PKG,
+   --  so the the parent of INTER can be analyzed and references to PKG
+   --  points to an instance.
+   --  It is necessary to create an instance because two interface packages
+   --  are different even if they have the same uninstantiated package.
+   procedure Instantiate_Interface_Package_Declaration
+     (Inter : Iir; Pkg : Iir);
+
+   --  - package instantiations
+   --    instantiate each node.
    procedure Instantiate_Package_Declaration (Inst : Iir; Pkg : Iir);
 
    --  Create interface parameters of INST from SUBPRG.