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Use Luau tags to mark userdata objects as destructed

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This commit is contained in:
Alex Orlenko
2022-07-18 00:59:17 +01:00
parent f9ff6116db
commit d3b48cf2f3
5 changed files with 20 additions and 16 deletions
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src/lua.rs
+5 -5
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@@ -25,7 +25,7 @@ use crate::string::String;
use crate::table::Table;
use crate::thread::Thread;
use crate::types::{
Callback, CallbackUpvalue, DestructedUserdataMT, Integer, LightUserData, LuaRef, MaybeSend,
Callback, CallbackUpvalue, DestructedUserdata, Integer, LightUserData, LuaRef, MaybeSend,
Number, RegistryKey,
};
use crate::userdata::{AnyUserData, UserData, UserDataCell};
@@ -602,13 +602,13 @@ impl Lua {
"Error while storing extra data",
);
// Register `DestructedUserdataMT` type
// Register `DestructedUserdata` type
get_destructed_userdata_metatable(main_state);
let destructed_mt_ptr = ffi::lua_topointer(main_state, -1);
let destructed_mt_typeid = Some(TypeId::of::<DestructedUserdataMT>());
let destructed_ud_typeid = TypeId::of::<DestructedUserdata>();
(*extra.get())
.registered_userdata_mt
.insert(destructed_mt_ptr, destructed_mt_typeid);
.insert(destructed_mt_ptr, Some(destructed_ud_typeid));
ffi::lua_pop(main_state, 1);
mlua_debug_assert!(
@@ -2587,7 +2587,7 @@ impl Lua {
let extra = &*self.extra.get();
match extra.registered_userdata_mt.get(&mt_ptr) {
Some(&type_id) if type_id == Some(TypeId::of::<DestructedUserdataMT>()) => {
Some(&type_id) if type_id == Some(TypeId::of::<DestructedUserdata>()) => {
Err(Error::UserDataDestructed)
}
Some(&type_id) => Ok(type_id),