Release v1.0.0

1 files changed, 100 insertions, 0 deletions

diff --git a/RenderScript/include/LuaFunctionBinding.h b/RenderScript/include/LuaFunctionBinding.h
new file mode 100644
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+++ b/RenderScript/include/LuaFunctionBinding.h
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+/*     Copyright 2015 Egor Yusov
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  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 OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#pragma once
+
+namespace Diligent
+{
+    class LuaFunctionCallerBase
+    {
+    public:
+        LuaFunctionCallerBase( lua_State *LuaState = nullptr ) :
+            m_LuaState( LuaState )
+        {
+        };
+
+        void SetLuaState( lua_State *LuaState )
+        {
+            m_LuaState = LuaState;
+        }
+        
+        // We need these stubs to hide implementation details
+        void PushFuncStub( lua_State *L, Bool Arg );
+        void PushFuncStub( lua_State *L, Int32 Arg );
+        void PushFuncStub( lua_State *L, Uint32 Arg );
+        void PushFuncStub( lua_State *L, Int16 Arg );
+        void PushFuncStub( lua_State *L, Uint16 Arg );
+        void PushFuncStub( lua_State *L, Int8 Arg );
+        void PushFuncStub( lua_State *L, Uint8 Arg );
+        void PushFuncStub( lua_State *L, float Arg );
+        void PushFuncStub( lua_State *L, const Char *Arg );
+        void PushFuncStub( lua_State *L, const String &Arg );
+
+    protected:
+        void Run_internal( int NumArgs, const Char *FuncName );
+
+        lua_State *m_LuaState;
+    };
+
+    class DummyPushFuncs
+    {
+    public:
+        void PushFuncStub();
+    };
+
+    template<typename AdditionalPushFuncs = DummyPushFuncs>
+    class LuaFunctionCaller : public LuaFunctionCallerBase, public AdditionalPushFuncs
+    {
+    public:
+        void operator()()
+        {
+            operator()( nullptr );
+        }
+
+        template<typename... ArgsType>
+        void operator()( const Char *FuncName, const ArgsType&... Args )
+        {
+            Run_internal( 0, FuncName, Args... );
+        }
+
+        // We need to make visible these parent-class definitions here
+        using LuaFunctionCallerBase::PushFuncStub;
+        using LuaFunctionCallerBase::Run_internal;
+        using AdditionalPushFuncs::PushFuncStub;
+
+    protected:
+        template<typename ArgType>
+        void Run_internal( int NumArgs, const Char *FuncName, const ArgType &Arg )
+        {
+            PushFuncStub( m_LuaState, Arg );
+            Run_internal( NumArgs + 1, FuncName );
+        }
+
+        template<typename ArgType, typename... RestArgsType>
+        void Run_internal( int NumArgs, const Char *FuncName, const ArgType &Arg, const RestArgsType&... RestArgs )
+        {
+            PushFuncStub( m_LuaState, Arg );
+            Run_internal( NumArgs + 1, FuncName, RestArgs... ); // recursive call using pack expansion syntax
+        }
+    };
+}