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Unable to pass functions as arguments to create_function
#73
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Edit: Whoops, I misread this entirely, I was out last night 🍸 and replying on my phone, and replied without thinking. Let me try this again: Try something like this:
You can't accept a Lua function as a function pointer because it has to be a handle into the Lua state. Lua function handles are just |
Ah ha, that seems to work! Thank you so much! |
Hi, I seem to have run into another issue while trying to store a copy of the function: Code used: fn setup_module_globals(&mut self) -> rlua::Result<()> {
let on_event_function = self.lua.create_function(|_, (name, handler): (String, rlua::Function)| {
self.events.entry(String::from(name)).or_insert_with(Vec::new).push(handler.clone());
Ok(())
})?;
self.lua.globals().set("on_event", on_event_function.clone())
} Error given:
It's due to the calling of |
You're trying to create a Lua closure that captures I think I see what you're trying to do, and there are a lot of ways to accomplish this. I can't know which one is the best for you, but I can roughly describe some of the solutions. Ultimately, you need to put some thought into what owns things like
(side note: there's an open issue about optionally adding a lifetime to You can fix the There are two rules about
There is, however, a way around these restrictions. One potential solution that prevents you from needing an Arc<Mutex<>> is just to use Generally when you start running into lifetime problems with |
I've also attempted with
rlua::Function
, but that seems to not work either.Error:
Is there someway to pass a function that I'm missing?
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