1 files changed, 73 insertions, 0 deletions
diff --git a/libs/lua/LuaBridge/detail/ClassInfo.h b/libs/lua/LuaBridge/detail/ClassInfo.h
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+++ b/libs/lua/LuaBridge/detail/ClassInfo.h
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+//------------------------------------------------------------------------------
+/*
+  https://github.com/vinniefalco/LuaBridge
+  
+  Copyright 2012, Vinnie Falco <vinnie.falco@gmail.com>
+
+  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.
+*/
+//==============================================================================
+
+/** Unique Lua registry keys for a class.
+
+    Each registered class inserts three keys into the registry, whose
+    values are the corresponding static, class, and const metatables. This
+    allows a quick and reliable lookup for a metatable from a template type.
+*/
+template <class T>
+class ClassInfo
+{
+public:
+  /** Get the key for the static table.
+
+      The static table holds the static data members, static properties, and
+      static member functions for a class.
+  */
+  static void const* getStaticKey ()
+  {
+    static char value;
+    return &value;
+  }
+
+  /** Get the key for the class table.
+
+      The class table holds the data members, properties, and member functions
+      of a class. Read-only data and properties, and const member functions are
+      also placed here (to save a lookup in the const table).
+  */
+  static void const* getClassKey ()
+  {
+    static char value;
+    return &value;
+  }
+
+  /** Get the key for the const table.
+
+      The const table holds read-only data members and properties, and const
+      member functions of a class.
+  */
+  static void const* getConstKey ()
+  {
+    static char value;
+    return &value;
+  }
+};
+