C++ migration: wrap lua type values in an enum class for type safety and debugging purposes

1 files changed, 6 insertions, 4 deletions

diff --git a/src/macros_and_utils.h b/src/macros_and_utils.h
index 99e49f9..e8d5ab5 100644
--- a/src/macros_and_utils.h
+++ b/src/macros_and_utils.h
@@ -182,10 +182,12 @@ template <typename T, auto = []{}>
 struct Unique
 {
     T m_val;
-    Unique() = default;
-    operator T() const { return m_val; }
-    explicit Unique(T b_) : m_val{ b_ } {}
+    constexpr Unique() = default;
+    constexpr operator T() const { return m_val; }
+    constexpr explicit Unique(T b_) : m_val{ b_ } {}
 };
 
+// #################################################################################################
+
 using Source = Unique<lua_State*>;
-using Dest = Unique<lua_State*>;
+using Dest = Unique<lua_State*>;
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