#125 Move graph_interface.hpp into a new folder <ureact/core/>

* move all graph_interface.hpp content into a new public interface ureact::core

Author: YarikTH

include/ureact/adaptor/observe.hpp

@@ -139,7 +139,7 @@ class signal_observer_node final : public observer_node
         this->detach_from_all();
     }
 
-    UREACT_WARN_UNUSED_RESULT update_result update() override
+    UREACT_WARN_UNUSED_RESULT core::update_result update() override
     {
         if( m_subject.is_valid() )
         {
@@ -150,7 +150,7 @@ class signal_observer_node final : public observer_node
                 detach_observer();
         }
 
-        return update_result::unchanged;
+        return core::update_result::unchanged;
     }
 
 private:
@@ -188,7 +188,7 @@ class events_observer_node final : public observer_node
         this->detach_from_all();
     }
 
-    UREACT_WARN_UNUSED_RESULT update_result update() override
+    UREACT_WARN_UNUSED_RESULT core::update_result update() override
     {
         if( m_subject.is_valid() )
         {
@@ -208,7 +208,7 @@ class events_observer_node final : public observer_node
             }
         }
 
-        return update_result::unchanged;
+        return core::update_result::unchanged;
     }
 
 private:

include/ureact/detail/graph_impl.inl

@@ -307,8 +307,6 @@ UREACT_FUNC void react_graph_impl::schedule_successors( node_data& parentNode )
 
 UREACT_FUNC void react_graph_impl::propagate_node_change( const node_id nodeId )
 {
-    using update_result = core::update_result;
-
     node_data& node = m_node_data[nodeId];
     if( std::shared_ptr<reactive_node_interface> nodePtr = node.node_ptr.lock() )
     {
@@ -320,16 +318,16 @@ UREACT_FUNC void react_graph_impl::propagate_node_change( const node_id nodeId )
             return;
         }
 
-        const update_result result = nodePtr->update();
+        const core::update_result result = nodePtr->update();
 
         // Topology changed?
-        if( result == update_result::shifted )
+        if( result == core::update_result::shifted )
         {
             re_schedule_node( nodeId );
             return;
         }
 
-        if( result == update_result::changed )
+        if( result == core::update_result::changed )
         {
             m_changed_nodes.add( nodeId );
             schedule_successors( node );