Simple typing of subscripts for nfinst.

Author: perost

Compiler/NFFrontEnd/NFSubscript.mo

@@ -98,5 +98,15 @@ public
     string := List.toString(subscripts, toString, "", "[", ", ", "]", false);
   end toStringList;
 
+  function isIndex
+    input Subscript subscript;
+    output Boolean isIndex;
+  algorithm
+    isIndex := match subscript
+      case INDEX() then true;
+      else false;
+    end match;
+  end isIndex;
+
 annotation(__OpenModelica_Interface="frontend");
 end NFSubscript;

Compiler/NFFrontEnd/NFType.mo

@@ -37,6 +37,7 @@ protected
 public
   import Dimension = NFDimension;
   import NFInstNode.InstNode;
+  import Subscript = NFSubscript;
 
   record INTEGER
   end INTEGER;
@@ -121,6 +122,21 @@ public
     end match;
   end liftArrayLeftList;
 
+  function unliftArray
+    input output Type ty;
+  protected
+    Type el_ty;
+    list<Dimension> dims;
+  algorithm
+    ARRAY(el_ty, _ :: dims) := ty;
+
+    if listEmpty(dims) then
+      ty := el_ty;
+    else
+      ty := ARRAY(el_ty, dims);
+    end if;
+  end unliftArray;
+
   function isInteger
     input Type ty;
     output Boolean isInteger;
@@ -400,5 +416,16 @@ public
     end match;
   end toDAE;
 
+  function subscript
+    input output Type ty;
+    input list<Subscript> subs;
+  algorithm
+    for sub in subs loop
+      if Subscript.isIndex(sub) then
+        ty := unliftArray(ty);
+      end if;
+    end for;
+  end subscript;
+
   annotation(__OpenModelica_Interface="frontend");
 end NFType;

Compiler/NFFrontEnd/NFTyping.mo

@@ -576,10 +576,10 @@ algorithm
         comp := InstNode.component(cref.node);
         ty := Component.getType(comp);
         variability := ComponentRef.getVariability(cref);
-        cref.ty := ty;
         cref.subscripts := typeSubscripts(cref.subscripts, info);
+        cref.ty := Type.subscript(ty, cref.subscripts);
       then
-        (Expression.CREF(cref), ty, variability);
+        (Expression.CREF(cref), cref.ty, variability);
 
     case ComponentRef.WILD()
       then (Expression.CREF(ComponentRef.WILD()), Type.UNKNOWN(), DAE.Const.C_VAR());