error-handling - Lua C-API：在lua函数调用期间发生错误时获取行

Question

当我lua_pcall从 C++ 调用Lua-function时，我通常会这样做：

 const int pcall {lua_pcall(lua_state, 1, 1, 0)};
 if (pcall == LUA_OK){      
    ...
    return true;
    // OK!
 }
 std::cerr << "Error: pcall failed. Code: ";
 std::cerr << pcall;
 std::cerr << ", '" << lua_tostring(lua_state, -1) << "'\n";
 ...
 // ERROR!

这很好，但不足以确定我的 lua 代码中的确切错误行。这是我的终端输出：

Error: pcall failed. Code: 2, 'attempt to call a nil value'
Error: pcall failed. Code: 2, 'attempt to call a boolean value'
Error: pcall failed. Code: 2, 'attempt to call a nil value'
Error: pcall failed. Code: 2, 'attempt to call a nil value'
Error: pcall failed. Code: 2, 'attempt to call a userdata value'

您如何检索有关每个错误的更多信息（例如代码行）？