add LuaBridge

https://github.com/vinniefalco/LuaBridge

libs/lua/LuaBridge/LuaBridge.h

@@ -0,0 +1,142 @@
+//------------------------------------------------------------------------------
+/*
+  https://github.com/vinniefalco/LuaBridge
+  
+  Copyright 2012, Vinnie Falco <vinnie.falco@gmail.com>
+  Copyright 2007, Nathan Reed
+
+  License: The MIT License (http://www.opensource.org/licenses/mit-license.php)
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all
+  copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef LUABRIDGE_LUABRIDGE_HEADER
+#define LUABRIDGE_LUABRIDGE_HEADER
+
+// All #include dependencies are listed here
+// instead of in the individual header files.
+//
+#include <cassert>
+#include <sstream>
+#include <stdexcept>
+#include <string>
+#include <typeinfo>
+
+#define LUABRIDGE_MAJOR_VERSION 2
+#define LUABRIDGE_MINOR_VERSION 0
+#define LUABRIDGE_VERSION 200
+
+namespace luabridge
+{
+
+// Forward declaration
+//
+template <class T>
+struct Stack;
+
+#include "detail/LuaHelpers.h"
+
+#include "detail/TypeTraits.h"
+#include "detail/TypeList.h"
+#include "detail/FuncTraits.h"
+#include "detail/Constructor.h"
+#include "detail/Stack.h"
+#include "detail/ClassInfo.h"
+
+class LuaRef;
+
+#include "detail/LuaException.h"
+#include "detail/LuaRef.h"
+#include "detail/Iterator.h"
+
+//------------------------------------------------------------------------------
+/**
+    security options.
+*/
+class Security
+{
+public:
+  static bool hideMetatables ()
+  {
+    return getSettings().hideMetatables;
+  }
+
+  static void setHideMetatables (bool shouldHide)
+  {
+    getSettings().hideMetatables = shouldHide;
+  }
+
+private:
+  struct Settings
+  {
+    Settings () : hideMetatables (true)
+    {
+    }
+
+    bool hideMetatables;
+  };
+
+  static Settings& getSettings ()
+  {
+    static Settings settings;
+    return settings;
+  }
+};
+
+#include "detail/Userdata.h"
+#include "detail/CFunctions.h"
+#include "detail/Namespace.h"
+
+//------------------------------------------------------------------------------
+/**
+    Push an object onto the Lua stack.
+*/
+template <class T>
+inline void push (lua_State* L, T t)
+{
+  Stack <T>::push (L, t);
+}
+
+//------------------------------------------------------------------------------
+/**
+  Set a global value in the lua_State.
+
+  @note This works on any type specialized by `Stack`, including `LuaRef` and
+        its table proxies.
+*/
+template <class T>
+inline void setGlobal (lua_State* L, T t, char const* name)
+{
+  push (L, t);
+  lua_setglobal (L, name);
+}
+
+//------------------------------------------------------------------------------
+/**
+  Change whether or not metatables are hidden (on by default).
+*/
+inline void setHideMetatables (bool shouldHide)
+{
+  Security::setHideMetatables (shouldHide);
+}
+
+}
+
+#endif