#128 Add detail::make_react_graph() as preparation for hiding react_graph's implementation

Author: YarikTH

include/ureact/context.hpp

@@ -23,8 +23,7 @@ namespace detail
 class context_internals
 {
 public:
-    explicit context_internals(
-        std::shared_ptr<react_graph> graph = std::make_shared<react_graph>() );
+    explicit context_internals( std::shared_ptr<react_graph> graph = make_react_graph() );
 
     UREACT_WARN_UNUSED_RESULT react_graph& get_graph();
     UREACT_WARN_UNUSED_RESULT const react_graph& get_graph() const;

include/ureact/detail/context.inl

@@ -52,7 +52,7 @@ UREACT_FUNC context get()
 
     if( !graphPtr )
     {
-        s_instance = graphPtr = std::make_shared<detail::react_graph>();
+        s_instance = graphPtr = detail::make_react_graph();
     }
 
     return context{ std::move( graphPtr ) };

include/ureact/detail/graph_impl.hpp

@@ -430,6 +430,11 @@ UREACT_WARN_UNUSED_RESULT inline bool react_graph::topological_queue::fetch_next
     return !m_next_data.empty();
 }
 
+inline std::shared_ptr<react_graph> make_react_graph()
+{
+    return std::make_shared<react_graph>();
+}
+
 } // namespace detail
 
 UREACT_END_NAMESPACE