Important

This project is still incomplete and in progress, so it is not guaranteed to be complete and may contain unfixed or serious bugs.

Luao

The new, modern Lua language specification

Overview

• Advanced class-based object-oriented programming including inheritance and abstraction
• Better error handling using try-catch-finally statements and error types

Compatibility with Lua 5.4

Luao is fully backward compatible with Lua 5.4. Existing Lua scripts will run without modification.
Metatable functionality is deprecated in Luao, but still supported for compatibility.
If you use metatables (such as setmetatable, getmetatable, __index, operator overloading via metatables, etc.), you will receive a warning at compile or runtime, but your code will continue to work.

• Standard Lua syntax and APIs are available.
• Metatable-related functions are supported, but deprecated (warnings will be issued).
• New features (class, type annotations, error handling, operator overloading, etc.) are available via Luao syntax.
• You can mix traditional Lua code and Luao extensions in the same file.