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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.
This commit is contained in:
Robin Gareus 2017-03-22 16:59:02 +01:00
parent 35dcd46d7d
commit 4a180e68ba
1 changed files with 4 additions and 3 deletions
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7
libs/lua/LuaBridge/detail/Stack.h
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@ -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;
}
};