Integrate Lua with C++

7

Working with C++ Types

In the previous chapter, we learned how to call C++ code from Lua and how to register C++ modules. You might have observed that you can create objects in C++ and register them to Lua, but how about creating C++ objects freely in Lua? This is what we will set out to achieve in this chapter.

We will learn about the following topics and export C++ types to Lua in a top-down approach:

• How to use the Lua registry
• How to use userdata
• Exporting C++ type to Lua

Technical requirements

Here are the technical requirements for this chapter:

• You can access the source code for this chapter at https://github.com/PacktPublishing/Integrate-Lua-with-CPP/tree/main/Chapter07.
• The previous chapter showed you how to register C++ modules; ...