神奇的luabind

c++源文件如下

#include

#include

void greet()

{

    std::cout << "hello world!/n";

}

void fly()

{

    std::cout << "I can fly!/n";

}

extern "C" int init(lua_State* L)

{

    using namespace luabind;

    open(L);

module(L)

    [

        def("greet", &greet),

    def("fly",      &fly)

    ];

    return 0;

}

看了下luabind源码，这个居然是通过标准的C++用法做到的

inline module_ module(lua_State* L, char const* name = 0)；

module函数返回module_对象

class LUABIND_API module_

{

    public:

        module_(lua_State* L_, char const* name);

        void operator[](scope s);

    private:

        lua_State* m_state;

        char const* m_name;

};

module_重载了[]，接受scope对象

template

scope def(char const* name, F f, Policies const& policies)

{

    return scope(std::auto_ptr(

        new detail::function_registration(name, f, policies)));

}

template

scope def(char const* name, F f)

{

    return def(name, f, detail::null_type());

}

def返回scope对象

struct LUABIND_API scope

{

        scope();

        explicit scope(std::auto_ptr reg);

        scope(scope const& other_);

        ~scope();

        scope& operator,(scope s);

        void register_(lua_State* L) const;

    private:

        detail::registration* m_chain;

};

scope重载了,运算符

太优雅了！！！