Can't define function in lua script after calling luaL_sandbox in host about luau HOT 2 CLOSED

The correct procedure is that instead of running code in the (sandboxed) global state, you create new threads, sandbox them using luaL_sandboxthread and run code inside them.

So, do this once when initializing the VM:

1. luaL_newstate
2. luaL_openlibs plus whatever extra global setup for the shared global environment you need via luaL_register / lua_setglobal
3. luaL_sandbox

... and then do this any time you want to start a new script:

1. lua_newthread
2. luaL_sandboxthread
3. luau_load with bytecode
4. lua_resume or lua_pcall to run it

luaL_sandboxthread will create a writeable global table for the thread that will refer to the (read-only) shared global environment for unknown keys.

from luau.

Awesome, that seems to work so far, thank you.

from luau.