4.0: merged r2168 changeset (forbid usage of model local variables outside model scope)

git-svn-id: https://www.dynare.org/svn/dynare/branches/4.0@2209 ac1d8469-bf42-47a9-8791-bf33cf982152

preprocessor/ParsingDriver.cc

@@ -207,6 +207,10 @@ ParsingDriver::add_expression_variable(string *name)
   if (!mod_file->symbol_table.exists(*name))
     mod_file->symbol_table.addSymbol(*name, eModFileLocalVariable);
 
+  // This check must come after the previous one!
+  if (mod_file->symbol_table.getType(*name) == eModelLocalVariable)
+    error("Variable " + *name + " not allowed outside model declaration. Its scope is only inside model.");
+
   NodeID id = data_tree->AddVariable(*name);
 
   delete name;