Special case const std::string& Lua binding.

since 6dc3bdf, a const string reference would leave scope with Lua code
     fn("text")
calling a C++
     fn (const std::string&)
before the C++ function is called.

1 files changed, 4 insertions, 3 deletions

diff --git a/libs/lua/LuaBridge/detail/Stack.h b/libs/lua/LuaBridge/detail/Stack.h
index e6ff637f19..7311c921f9 100644
--- a/libs/lua/LuaBridge/detail/Stack.h
+++ b/libs/lua/LuaBridge/detail/Stack.h
@@ -731,14 +731,15 @@ struct Stack <std::string const&>
 {
   static inline void push (lua_State* L, std::string const& str)
   {
-    lua_pushstring (L, str.c_str());
+    lua_pushlstring (L, str.c_str (), str.size());
   }
 
-  static inline std::string get (lua_State* L, int index)
+  static inline std::string& get (lua_State* L, int index)
   {
     size_t len;
     const char *str = luaL_checklstring(L, index, &len);
-    return std::string (str, len);
+    std::string* x = new (lua_newuserdata (L, sizeof (std::string))) std::string (str, len);
+    return *x;
   }
 };