Question

我编写了一个lua脚本，想要用c ++代码解析脚本。在这个脚本中我有函数，我想获得该函数并将其保存以供将来使用。 main.cpp就像

#include <string>
#include <iostream>
#include "luaParser.h"
#include "LuaBridge.h"
extern "C" {
# include "lua.h"
# include "lauxlib.h"
# include "lualib.h"
}

using namespace luabridge;
void main (void)
{
 lua_State* L = luaL_newstate();
 if (luaL_dofile(L, "P3626_PORT.lua"))
 {
     printf("%s\n", lua_tostring(L, -1));
 }

 luaL_openlibs(L);
 lua_pcall(L, 0, 0, 0);

 LuaParser parser;
 parser.luaParse(L);  // get some values from the luaParser::luaParse function
 lua_close(L);

 parser.run(); // call the run function defined in LuaParser class
 parser.stop(); // call the stop function defined in LuaParser class

}

P3626_PORT.lua就像：

lua_name = "P3626_PORT.lua"

run = function()  
    print (" this is my input!!!!!!!")
end 

stop = function() 
    print (" this is my output!!!!!!!")
end

luaParser.h就像：

#pragma once
#include <string>
#include "LuaBridge.h"
extern "C" {
  #include "lua.h"
  #include "lualib.h"
  #include "lauxlib.h"
}

using namespace luabridge;

class LuaParser
{
 public:
  LuaParser();
  virtual ~LuaParser();

  void luaParse(lua_State* L);   // in this function, run (pcall) the script and retrieve functions
  void run();
  void stop();

 private:
  LuaRef mRun;
  LuaRef mStop;

};

最后，luaParser.cpp就像这样：

#ifdef _WIN32
#pragma warning(disable: 4786)
#endif

#include <stdlib.h>
#include <assert.h>
#include "LuaParser.h"
#include <iostream>
#include <string>

LuaParser::LuaParser(){}
LuaParser::~LuaParser(){}

void LuaParser::luaParse(lua_State* L)
{
  using namespace luabridge;

  LuaRef serviceName = getGlobal(L, "service_name");
  std::string LuaServiceName = serviceName.cast<std::string>(); 
  std::cout << LuaServiceName << std::endl;

  // now Let's read the function
  mRun = getGlobal(L, "run");
  mStop = getGlobal(L, "stop");
  }

void LuaParser::run()
{
  mRun();
}

void LuaParser::stop()
{
  mStop();
}

编译项目时，我收到错误

error c2512: 'luabridge::LuaRef':no appropriate default constructor available

我试图通过初始化列表来解决这个问题，但它不起作用。知道如何解决这个问题吗？

在c ++中，luabridge :: LuaRef：没有合适的默认构造函数可用

0 个答案: