diff --git a/vhdlpp/scope.cc b/vhdlpp/scope.cc
index e5d1dcd85..5182aee1a 100644
--- a/vhdlpp/scope.cc
+++ b/vhdlpp/scope.cc
@@ -203,6 +203,27 @@ void ScopeBase::do_use_from(const ScopeBase*that)
       }
 }
 
+void ScopeBase::transfer_from(ScopeBase&ref)
+{
+    std::copy(ref.new_signals_.begin(), ref.new_signals_.end(),
+          insert_iterator<map<perm_string, Signal*> >(
+              new_signals_, new_signals_.end())
+    );
+    ref.new_signals_.clear();
+
+    std::copy(ref.new_variables_.begin(), ref.new_variables_.end(),
+          insert_iterator<map<perm_string, Variable*> >(
+              new_variables_, new_variables_.end())
+    );
+    ref.new_variables_.clear();
+
+    std::copy(ref.new_components_.begin(), ref.new_components_.end(),
+          insert_iterator<map<perm_string, ComponentBase*> >(
+              new_components_, new_components_.end())
+    );
+    ref.new_components_.clear();
+}
+
 void ActiveScope::set_package_header(Package*pkg)
 {
       assert(package_header_ == 0);
diff --git a/vhdlpp/scope.h b/vhdlpp/scope.h
index d0054dae4..2b0fdc5b3 100644
--- a/vhdlpp/scope.h
+++ b/vhdlpp/scope.h
@@ -57,6 +57,9 @@ class ScopeBase {
       Signal* find_signal(perm_string by_name) const;
       Variable* find_variable(perm_string by_name) const;
       Subprogram* find_subprogram(perm_string by_name) const;
+	// Moves all signals, variables and components from another scope to
+	// this one. After the transfer new_* maps are emptied in the another scope.
+      void transfer_from(ScopeBase&ref);
 
     protected:
       void cleanup();
@@ -202,7 +205,7 @@ class ActiveScope : public ScopeBase {
       { map<perm_string, Subprogram*>::iterator it;
         if((it = use_subprograms_.find(name)) != use_subprograms_.end() )
             use_subprograms_.erase(it);
-        cur_subprograms_[name] = obj;;
+        cur_subprograms_[name] = obj;
       }
 
       void bind(Entity*ent)