vhdl: move Is_Copyback_Parameter to vhdl-utils

2 files changed, 14 insertions, 0 deletions

diff --git a/src/vhdl/vhdl-utils.adb b/src/vhdl/vhdl-utils.adb
index fecb0602c..300c082a5 100644
--- a/src/vhdl/vhdl-utils.adb
+++ b/src/vhdl/vhdl-utils.adb
@@ -676,6 +676,16 @@ package body Vhdl.Utils is
       end case;
    end Is_Parameter;
 
+   function Is_Copyback_Parameter (Inter : Iir) return Boolean is
+   begin
+      case Iir_Parameter_Modes (Get_Mode (Inter)) is
+         when Iir_In_Mode =>
+            return False;
+         when Iir_Out_Mode | Iir_Inout_Mode =>
+            return Get_Kind (Inter) = Iir_Kind_Interface_Variable_Declaration;
+      end case;
+   end Is_Copyback_Parameter;
+
    function Find_Name_In_Flist (List : Iir_Flist; Lit : Name_Id) return Iir
    is
       El : Iir;
diff --git a/src/vhdl/vhdl-utils.ads b/src/vhdl/vhdl-utils.ads
index f51599cdf..01425a157 100644
--- a/src/vhdl/vhdl-utils.ads
+++ b/src/vhdl/vhdl-utils.ads
@@ -112,6 +112,10 @@ package Vhdl.Utils is
    --  Return True iff interface INTER is a (subprogram) parameter.
    function Is_Parameter (Inter : Iir) return Boolean;
 
+   --  Return True iff parameter INTER should be copied back (for out/inout
+   --  variable).
+   function Is_Copyback_Parameter (Inter : Iir) return Boolean;
+
    --  Duplicate enumeration literal LIT.
    function Copy_Enumeration_Literal (Lit : Iir) return Iir;