Added ref class in core and did some thoughts in thread

1 files changed, 41 insertions, 0 deletions

diff --git a/modules/core/c++/common.hpp b/modules/core/c++/common.hpp
index d892efe..40b2c43 100644
--- a/modules/core/c++/common.hpp
+++ b/modules/core/c++/common.hpp
@@ -40,6 +40,47 @@ template <typename T> using our = std::shared_ptr<T>;
 
 template <typename T> using lent = std::weak_ptr<T>;
 
+/**
+ * Reference class for easier distinction
+ * of references and its referenced types.
+ */
+template <typename T>
+class ref {
+private:
+	/**
+	 * Referenced type
+	 */
+	T* ref_;
+
+	/**
+	 * We don't want to move since the would invalidate the type.
+	 */
+	SAW_FORBID_MOVE(ref);
+public:
+	/**
+	 * Main constructor.
+	 */
+	ref(T& ref__):
+		ref_{&ref__}
+	{}
+
+	SAW_DEFAULT_COPY(ref);
+
+	/**
+	 * Operator retrieving the itself.
+	 */
+	T& operator()(){
+		return *ref_;
+	}
+
+	/**
+	 * Operator retrieving the itself.
+	 */
+	const T& operator()() const {
+		return *ref_;
+	}
+};
+
 template <typename T, class... Args> own<T> heap(Args &&...args) {
 	return own<T>(new T(std::forward<Args>(args)...));
 }