I was just wondering, is it possible to call a function with its hexadecimal memory address? If you don’t understand what I mean, when you try and print a function like so:
print(function() return "Hello" end)
It will print out something like this:
So what I’m asking is, can you do something like this?
0x515c5b41972f263f()
Because when I try it in studio, it always gives me an error.
I have looked on the DevForum for a while and I haven’t found anything like this.
I actually havent researched this, but well how you called it is surely not how you would call it.
Maybe there is a different way we dont yet know about, but I doubt it, because as you can see:
You cannot really recreate it, because it’s a function type.
There are no ways of accessing system memory from Lua by addressing it that way, so no. Outside Roblox you could do it by interoperating with C code, but that’s not available to Roblox Lua.
Do you need it for something? There’s probably another way
This hex representation of the function is not the actual address; before printing a function/userdata, it passes through a mapping (I presume for security reasons), so the only thing you can be sure of is that if the representation is the same, then it’s the same function.
See lua_encodepointer in Luau source code:
uintptr_t lua_encodepointer(lua_State* L, uintptr_t p)
{
global_State* g = L->global;
return uintptr_t((g->ptrenckey[0] * p + g->ptrenckey[2]) ^ (g->ptrenckey[1] * p + g->ptrenckey[3]));
}
