synth: handle alias (WIP, read only).

1 files changed, 10 insertions, 1 deletions

diff --git a/src/synth/synth-values.ads b/src/synth/synth-values.ads
index e7d5acc20..a0db0f5fb 100644
--- a/src/synth/synth-values.ads
+++ b/src/synth/synth-values.ads
@@ -147,7 +147,10 @@ package Synth.Values is
       --  A package.
       Value_Instance,
 
-      --  A subtype.
+      --  An alias
+      Value_Alias,
+
+      --  A subtype.  Contains only a type.
       Value_Subtype
      );
 
@@ -191,6 +194,9 @@ package Synth.Values is
             Rec : Value_Array_Acc;
          when Value_Instance =>
             Instance : Instance_Id;
+         when Value_Alias =>
+            A_Wid : Wire_Id;
+            A_Off : Uns32;
       end case;
    end record;
 
@@ -262,6 +268,9 @@ package Synth.Values is
 
    function Create_Value_Instance (Inst : Instance_Id) return Value_Acc;
 
+   function Create_Value_Alias (Wid : Wire_Id; Off : Uns32; Typ : Type_Acc)
+                               return Value_Acc;
+
    function Unshare (Src : Value_Acc; Pool : Areapool_Acc)
                     return Value_Acc;