[NF] Fix record constructor DAE issue.

- Create a real record constructor node, instead of using the record
  class itself when creating a record constructor function.

Belonging to [master]:
  - OpenModelica/OMCompiler#2304

Compiler/NFFrontEnd/NFClass.mo

@@ -148,6 +148,18 @@ uniontype Class
       Restriction.ENUMERATION());
   end fromEnumeration;
 
+  function makeRecordConstructor
+    input list<InstNode> inputs;
+    input list<InstNode> locals;
+    input InstNode out;
+    output Class cls;
+  protected
+    ClassTree tree;
+  algorithm
+    tree := ClassTree.fromRecordConstructor(inputs, locals, out);
+    cls := EXPANDED_CLASS(tree, Modifier.NOMOD(), DEFAULT_PREFIXES, Restriction.FUNCTION());
+  end makeRecordConstructor;
+
   function initExpandedClass
     input output Class cls;
   algorithm

Compiler/NFFrontEnd/NFClassTree.mo

@@ -615,6 +615,38 @@ public
       InstNode.updateClass(cls, clsNode);
     end instantiate;
 
+    function fromRecordConstructor
+      input list<InstNode> inputs;
+      input list<InstNode> locals;
+      input InstNode out;
+      output ClassTree tree = EMPTY;
+    protected
+      LookupTree.Tree ltree = LookupTree.new();
+      Integer i = 1;
+      array<Mutable<InstNode>> comps;
+    algorithm
+      comps := arrayCreateNoInit(listLength(inputs) + listLength(locals) + 1,
+        Mutable.create(InstNode.EMPTY_NODE()));
+
+      for ci in inputs loop
+        comps[i] := Mutable.create(ci);
+        ltree := addLocalElement(InstNode.name(ci), LookupTree.Entry.COMPONENT(i), tree, ltree);
+        i := i + 1;
+      end for;
+
+      for cl in locals loop
+        comps[i] := Mutable.create(cl);
+        ltree := addLocalElement(InstNode.name(cl), LookupTree.Entry.COMPONENT(i), tree, ltree);
+        i := i + 1;
+      end for;
+
+      comps[i] := Mutable.create(out);
+      ltree := addLocalElement(InstNode.name(out), LookupTree.Entry.COMPONENT(i), tree, ltree);
+
+      tree := INSTANTIATED_TREE(ltree, listArray({}), comps, List.intRange(i),
+        listArray({}), listArray({}), DuplicateTree.new());
+    end fromRecordConstructor;
+
     function mapRedeclareChains
       input ClassTree tree;
       input FuncT func;

Compiler/NFFrontEnd/NFComponent.mo

@@ -463,6 +463,30 @@ uniontype Component
     output Boolean isInput = direction(component) == Direction.INPUT;
   end isInput;
 
+  function makeInput
+    input output Component component;
+  protected
+    Attributes attr;
+  algorithm
+    () := match component
+      case UNTYPED_COMPONENT(attributes = attr)
+        algorithm
+          attr.direction := Direction.INPUT;
+          component.attributes := attr;
+        then
+          ();
+
+      case TYPED_COMPONENT(attributes = attr)
+        algorithm
+          attr.direction := Direction.INPUT;
+          component.attributes := attr;
+        then
+          ();
+
+      else ();
+    end match;
+  end makeInput;
+
   function isOutput
     input Component component;
     output Boolean isOutput = direction(component) == Direction.OUTPUT;

Compiler/NFFrontEnd/NFRecord.mo

@@ -60,7 +60,7 @@ import NFInstUtil;
 import NFPrefixes.Variability;
 import NFPrefixes.Visibility;
 import NFFunction.Function;
-import ClassTree = NFClassTree.ClassTree;
+import NFClassTree.ClassTree;
 import ComplexType = NFComplexType;
 import ComponentRef = NFComponentRef;
 import ErrorExt;
@@ -71,16 +71,18 @@ function instConstructors
   input Absyn.Path path;
   input output InstNode node;
   input SourceInfo info;
- protected
-   Class cls;
-   list<InstNode> inputs, outputs, locals;
-  InstNode out_rec, ctor_over;
-   DAE.FunctionAttributes attr;
-   Pointer<Boolean> collected;
-   Absyn.Path con_path;
+protected
+  Class cls;
+  list<InstNode> inputs, outputs, locals, params;
+  InstNode out_rec, ctor_over, def_ctor_node;
+  DAE.FunctionAttributes attr;
+  Pointer<Boolean> collected;
+  Absyn.Path con_path;
   ComponentRef con_ref;
   Boolean ctor_defined;
- algorithm
+  Component out_comp;
+  Class def_ctor_cls;
+algorithm
 
   // See if we have overloaded costructors.
   try
@@ -122,25 +124,19 @@ function instConstructors
   collected := Pointer.create(false);
   con_path := Absyn.suffixPath(path,"'constructor'.'$default'");
 
-  // Create an output record element for the default constructor.
-  // create a TYPED_COMPONENT here since this output "default constructed" record is not part
-  // of the class node. So it will not be typed later by typeFunction. Instead of changing
-  // things there just handle it here.
-  out_rec := InstNode.COMPONENT_NODE("$out" + InstNode.name(node),
-    Visibility.PUBLIC,
-    Pointer.createImmutable(Component.TYPED_COMPONENT(
-      node,
-      Type.COMPLEX(node, ComplexType.CLASS()),
-      Binding.UNBOUND(),
-      Binding.UNBOUND(),
-      NFComponent.OUTPUT_ATTR,
-      NONE(),
-      Absyn.dummyInfo)),
-    0,
-    node);
-
-  InstNode.cacheAddFunc(node, Function.FUNCTION(con_path, node, inputs, {out_rec}, locals, {}, Type.UNKNOWN(), attr, collected), false);
+  // Create a new node for the default constructor.
+  def_ctor_node := InstNode.replaceClass(Class.NOT_INSTANTIATED(), node);
+
+  // Create the output record element, using the node created above as parent.
+  out_comp := Component.UNTYPED_COMPONENT(node, listArray({}), Binding.UNBOUND(),
+    Binding.UNBOUND(), NFComponent.OUTPUT_ATTR, NONE(), Absyn.dummyInfo);
+  out_rec := InstNode.fromComponent("$out" + InstNode.name(node), out_comp, def_ctor_node);
+
+  // Make a record constructor class and update the node with it.
+  def_ctor_cls := Class.makeRecordConstructor(inputs, locals, out_rec);
+  def_ctor_node := InstNode.updateClass(def_ctor_cls, def_ctor_node);
 
+  InstNode.cacheAddFunc(node, Function.FUNCTION(con_path, def_ctor_node, inputs, {out_rec}, locals, {}, Type.UNKNOWN(), attr, collected), false);
 end instConstructors;
 
 
@@ -166,18 +162,12 @@ algorithm
           n := Mutable.access(components[i]);
           comp := InstNode.component(n);
 
-          if InstNode.isProtected(n) then
+          if InstNode.isProtected(n) or
+             Component.isConst(comp) and Component.hasBinding(comp) then
             locals := n :: locals;
           else
-            if Component.isConst(comp) then
-              if not Component.hasBinding(comp) then
-                inputs := n :: inputs;
-              else
-                locals := n :: locals;
-              end if;
-            else
-              inputs := n :: inputs;
-            end if;
+            n := InstNode.replaceComponent(Component.makeInput(comp), n);
+            inputs := n :: inputs;
           end if;
         end for;
       then

Compiler/Util/Array.mo

@@ -913,5 +913,18 @@ algorithm
   exists := false;
 end exist;
 
+function insertList<T>
+  input output array<T> arr;
+  input list<T> lst;
+  input Integer startPos;
+protected
+  Integer i = startPos;
+algorithm
+  for e in lst loop
+    arr[i] := e;
+    i := i + 1;
+  end for;
+end insertList;
+
 annotation(__OpenModelica_Interface="util");
 end Array;