Lua绑定流程

绑定是为了实现将C++代码注册到lua环境，使得lua可以调用C++函数。
https://blog.csdn.net/u012668054/article/details/48465233

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Lua绑定步骤：

1. 生成协议文件.
2. 协议id加入到协议列表(cpp)：PbMsgFactory.cpp，msg_table_pb.lua
3. 将C++代码绑定到Lua。
4. 生成pb文件。
5. 生成GenCode。
6. 在main.lua中加入创建代码：
   function createWecActivityLuckyDay(groupId)return WecActivityLuckyDay:create(groupId) end
7. 在WecActivityCenterView.cpp中调用lua代码：
   Node* _actNode = LuaUtils::call_if_exists(L, "createWecActivityLuckyDay", m_currGroupId);
8. 在WecLuaConversions.cpp和lua_cocos2dx_coco_studio_manual.cpp中添加额外需要的函数并注册tolua。
   如weclua_getStateDataByGroupIDForLua、lua_cocos2dx_ActionTimeline_setAnimationEndCallFunc

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1. 生成协议：proto+protobuf
   执行client/common/excel/proto2cpp.py
   生成文件:client\WeCGame\IF\Classes\proto、client\WeCGame\IF\Classes\protobuf

2. 协议id加入到协议列表(cpp)
   执行client/common/cs_proto/run4client.bat
   生成的相关文件：client\common\cs_proto\generated

3. 运行genbindings_if.py脚本。

4. 生成lua对应的protobuf文件
   Art/cocosstudio/GenPbForLua.bat
   修改GenPbForLua.py文件，将需要生成pb的协议加入到GenPbForLua.py文件中

   

5. 生成UI对应的lua代码GenCode
   Art/cocosstudio/GenerateLuaBindingCode.bat
   修改bat文件，-files参数改为需要生成的csd文件名，不带csd后缀。然后双击bat文件生成。
   

   

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错误：

1. LibclangError:%1不是有效的Win32。
   
   
   
   解决:Python、pyyaml、pyCheetah都用32位版本
2. TranslationUnitLoadError: Error parsing translation unit.
   
   
   
   造成这个问题的原因是因为类名写错，或者路径写错，或者是写了一个不存在的类。
3. The namespace conversion wasn't set in 'ns_map' section of the conversion.yaml
   The namespace(google::protobuf::Map,Res::AreaFlag>) conversion wasn't set in 'ns_map' section of the conversion.yaml
   将函数google::protobuf::Map<::std::string, ::Res::AreaFlag> LocalController::getLocateMap()加入skip中，跳过该函数的绑定。
   具体为：打开ini文件比如:cocos2dx_if_controller.ini，在skip中加入LocalController::[getLocateMap],。
4. skip参数出错
   methods = skip.split("::") ValueError: too many values to unpack
   skip = CCLoadSprite::[getCurrentTime]末尾少写了,
5. libclang: crash detected during parsing

libclang: crash detected during parsing: {
  'source_filename' : 'E:\iCOK\iCok0803\client\WeCGame\cocos2d/../IF/Classes/Ext/GUI/InputFieldMultiLine.h'
  'command_line_args' : ['-IE:\iCOK\iCok0803\client\WeCGame\tools\ndk/platforms/android-14/arch-arm/usr/include', '-IE:\iCOK\iCok0803\client\WeCGame\tools\ndk/sources/cxx-stl/gnu-libstdc++/4.7/libs/armeabi-v7a/include', '-IE:\iCOK\iCok0803\client\WeCGame\tools\ndk/sources/cxx-stl/gnu-libstdc++/4.7/include', '-IE:\iCOK\iCok0803\client\WeCGame\tools\llvm-3.3\prebuilt\windows-x86_64/lib/clang/3.3/include', '', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos/2d', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos/ui', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos/base', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos/physics', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos/2d/platform', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos/2d/platform/android', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos/math/kazmath', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/extensions', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/extensions/assets-manager', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/external', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos/editor-support', '-IE:\iCOK\iCok0803\client\WeCGame\cocos2d/cocos/deprecated/CCDictionary.h', '-D_SIZE_T_DEFINED_', '-DGOOGLE_PROTOBUF_NO_THREADLOCAL', '-nostdinc', '-x', 'c++', '-std=c++11', '-U', '__SSE__', '-DANDROID', '-D__WCHAR_MAX__=0x7fffffff', '-U__MINGW32__', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/../libs/rapidxml', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/controller', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/Ext', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/Ext/GUI', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/Ext/wec', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/model', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/Net', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/Net/command', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/Net/command/alliance', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/Net/push', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/scene', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/scene/battle', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/scene/cropscene', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/scene/dragon', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/scene/loading', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/scene/world', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/view', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/view/dragonView', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/view/fogView', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/view/guide', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/view/guiExt', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/view/skill', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/view/transition', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/view/Widget', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/view/popup', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/../../libs/tersafe/include/', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/../../libs/protobuf_300/include/', '-IE:\iCOK\iCok0803\client\WeCGame\IF\Classes/../../IF/Classes/protobuf/'],
  'unsaved_files' : [],
  'options' : 0,
}

出错原因：头文件定义了一个未实现的函数InputFieldMultiLine::getStringNum()，将该函数删除即可。
貌似并不是这个原因。

3. 忘记注册
   
   
   
   注册：
   LuaController::Init() {register_if_module();}
lua_cocos2dx_if_manual::register_if_module(){register_all_cocos2dx_if_controller(tolua_S);}

4. 创建

   
   
   
5. 点击赐福后：actNode=null
   
   
6. Not Receive Lucky Day NTF
   协议id有变化
7. 解码失败decode error:
   忘记生成最新的pb。
8. 明明当前类里有定义，还是报错未声明
   Classes\lua\WecLuaConversions.cpp(848) : error C2065: 'weclua_getStateDataByGroupIDForLua' : undeclared identifier
   原因：声明不能放在末尾。要先声明，再注册。