Lua 5.3 features used

[turbo]

Hi, first of all, thanks for this lib!

I'm using LuaJIT 2 exclusively and would like to know what the main features are that this lib uses which are exclusive to Lua 5.3 (vs 5.1 for JIT) just to gauge how much effort it would be for me to adapt this to my purposes.

Thanks!

[SatyendraBanjare]

Hi @turbo , thanks for reaching out !

Firstly I'd like to clarify that this library uses the Lua-C Api and not the JIT for the purpose. When developing the project we thought to make it for the latest available version of lua i.e 5.3 . I therefore did not look for the differences explicitly between 5.3 vs 5.1 for the Lua-C Api.

The reason we thought to use this was because Libgit2 has quite complex codebase written in C and if we did use the FFI, we might had to rewrite a lot of the functions. Also at the time of writing this project, the FFI did not support the include statements in C ( I am not very sure about the current status) .

Finally as a small explanation on the working of the project, we have all the Libgit2 code available that is installed as a shared library. We use Lua-C Api to form a bridge by creating a shared stack that is accessible from C. Using the stack we can properly control the number of arguments passed from Lua to C and returned after processing from C to Lua. Also we can check for the errors using the luaL_error() function.

Please look here for the official documentation https://www.lua.org/pil/24.3.2.html

Hope that helped.