Fix hook tests

Author: khvzak

src/state/raw.rs

@@ -411,6 +411,7 @@ impl RawLua {
         unsafe extern "C-unwind" fn global_hook_proc(state: *mut ffi::lua_State, ar: *mut ffi::lua_Debug) {
             let status = callback_error_ext(state, ptr::null_mut(), move |extra, _| {
                 let rawlua = (*extra).raw_lua();
+                let _guard = StateGuard::new(rawlua, state);
                 let debug = Debug::new(rawlua, ar);
                 match (*extra).hook_callback.take() {
                     Some(hook_cb) => {
@@ -440,6 +441,7 @@ impl RawLua {
 
             let status = callback_error_ext(state, ptr::null_mut(), |extra, _| {
                 let rawlua = (*extra).raw_lua();
+                let _guard = StateGuard::new(rawlua, state);
                 let debug = Debug::new(rawlua, ar);
                 match get_internal_userdata::<HookCallback>(state, -1, ptr::null()).as_ref() {
                     Some(hook_cb) => hook_cb((*extra).lua(), debug),

tests/async.rs

@@ -608,10 +608,10 @@ async fn test_async_hook() -> Result<()> {
     static HOOK_CALLED: AtomicBool = AtomicBool::new(false);
     lua.set_global_hook(mlua::HookTriggers::new().every_line(), move |_, _| {
         if !HOOK_CALLED.swap(true, Ordering::Relaxed) {
-            Ok(mlua::VmState::Yield)
-        } else {
-            Ok(mlua::VmState::Continue)
+            #[cfg(any(feature = "lu53", feature = "lua54"))]
+            return Ok(mlua::VmState::Yield);
         }
+        Ok(mlua::VmState::Continue)
     })?;
 
     let sleep = lua.create_async_function(move |_lua, n: u64| async move {