Suppress Rust 1.77 dead_code false warnings.

benches/benchmark.rs

@@ -269,7 +269,7 @@ fn registry_value_create(c: &mut Criterion) {
 }
 
 fn userdata_create(c: &mut Criterion) {
-    struct UserData(i64);
+    struct UserData(#[allow(unused)] i64);
     impl LuaUserData for UserData {}
 
     let lua = Lua::new();
@@ -286,7 +286,7 @@ fn userdata_create(c: &mut Criterion) {
 }
 
 fn userdata_call_index(c: &mut Criterion) {
-    struct UserData(i64);
+    struct UserData(#[allow(unused)] i64);
     impl LuaUserData for UserData {
         fn add_methods<'lua, M: LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
             methods.add_meta_method(LuaMetaMethod::Index, move |_, _, key: LuaString| Ok(key));

src/userdata.rs

@@ -1358,7 +1358,7 @@ impl<'lua> Serialize for AnyUserData<'lua> {
 /// A wrapper type for an immutably borrowed value from a `AnyUserData`.
 ///
 /// It implements [`FromLua`] and can be used to receive a typed userdata from Lua.
-pub struct UserDataRef<'lua, T: 'static>(AnyUserData<'lua>, Ref<'lua, T>);
+pub struct UserDataRef<'lua, T: 'static>(#[allow(unused)] AnyUserData<'lua>, Ref<'lua, T>);
 
 impl<'lua, T: 'static> Deref for UserDataRef<'lua, T> {
     type Target = T;
@@ -1380,7 +1380,7 @@ impl<'lua, T: 'static> UserDataRef<'lua, T> {
 /// A wrapper type for a mutably borrowed value from a `AnyUserData`.
 ///
 /// It implements [`FromLua`] and can be used to receive a typed userdata from Lua.
-pub struct UserDataRefMut<'lua, T: 'static>(AnyUserData<'lua>, RefMut<'lua, T>);
+pub struct UserDataRefMut<'lua, T: 'static>(#[allow(unused)] AnyUserData<'lua>, RefMut<'lua, T>);
 
 impl<'lua, T: 'static> Deref for UserDataRefMut<'lua, T> {
     type Target = T;

tests/memory.rs

@@ -84,7 +84,7 @@ fn test_gc_control() -> Result<()> {
 
     assert_eq!(lua.gc_inc(200, 100, 13), GCMode::Incremental);
 
-    struct MyUserdata(Arc<()>);
+    struct MyUserdata(#[allow(unused)] Arc<()>);
     impl UserData for MyUserdata {}
 
     let rc = Arc::new(());

tests/scope.rs

@@ -155,30 +155,30 @@ fn test_scope_userdata_functions() -> Result<()> {
 
     impl<'a> UserData for MyUserData<'a> {
         fn add_methods<'lua, M: UserDataMethods<'lua, Self>>(methods: &mut M) {
-            methods.add_meta_function(MetaMethod::Add, |lua, ()| {
+            methods.add_meta_method(MetaMethod::Add, |lua, this, ()| {
                 let globals = lua.globals();
-                globals.set("i", globals.get::<_, i64>("i")? + 1)?;
+                globals.set("i", globals.get::<_, i64>("i")? + this.0)?;
                 Ok(())
             });
-            methods.add_meta_function(MetaMethod::Sub, |lua, ()| {
+            methods.add_meta_method(MetaMethod::Sub, |lua, this, ()| {
                 let globals = lua.globals();
-                globals.set("i", globals.get::<_, i64>("i")? + 1)?;
+                globals.set("i", globals.get::<_, i64>("i")? + this.0)?;
                 Ok(())
             });
         }
     }
 
     let lua = Lua::new();
 
-    let dummy = 0;
+    let dummy = 1;
     let f = lua
         .load(
             r#"
             i = 0
             return function(u)
                 _ = u + u
                 _ = u - 1
-                _ = 1 + u
+                _ = u + 1
             end
         "#,
         )
@@ -257,15 +257,15 @@ fn test_scope_userdata_mismatch() -> Result<()> {
 fn test_scope_userdata_drop() -> Result<()> {
     let lua = Lua::new();
 
-    struct MyUserData(Rc<()>);
+    struct MyUserData(#[allow(unused)] Rc<()>);
 
     impl UserData for MyUserData {
         fn add_methods<'lua, M: UserDataMethods<'lua, Self>>(methods: &mut M) {
             methods.add_method("method", |_, _, ()| Ok(()));
         }
     }
 
-    struct MyUserDataArc(Arc<()>);
+    struct MyUserDataArc(#[allow(unused)] Arc<()>);
 
     impl UserData for MyUserDataArc {}
 
@@ -315,7 +315,7 @@ fn test_scope_userdata_drop() -> Result<()> {
 fn test_scope_nonstatic_userdata_drop() -> Result<()> {
     let lua = Lua::new();
 
-    struct MyUserData<'a>(&'a Cell<i64>, Arc<()>);
+    struct MyUserData<'a>(&'a Cell<i64>, #[allow(unused)] Arc<()>);
 
     impl<'a> UserData for MyUserData<'a> {
         fn add_methods<'lua, M: UserDataMethods<'lua, Self>>(methods: &mut M) {
@@ -326,7 +326,7 @@ fn test_scope_nonstatic_userdata_drop() -> Result<()> {
         }
     }
 
-    struct MyUserDataArc(Arc<()>);
+    struct MyUserDataArc(#[allow(unused)] Arc<()>);
 
     impl UserData for MyUserDataArc {}
 

tests/serde.rs

@@ -99,7 +99,7 @@ fn test_serialize_in_scope() -> LuaResult<()> {
         Err(e) => panic!("expected destructed error, got {}", e),
     }
 
-    struct MyUserDataRef<'a>(&'a ());
+    struct MyUserDataRef<'a>(#[allow(unused)] &'a ());
 
     impl<'a> UserData for MyUserDataRef<'a> {}
 

tests/tests.rs

@@ -743,7 +743,7 @@ fn test_registry_value() -> Result<()> {
 
 #[test]
 fn test_drop_registry_value() -> Result<()> {
-    struct MyUserdata(Arc<()>);
+    struct MyUserdata(#[allow(unused)] Arc<()>);
 
     impl UserData for MyUserdata {}
 

tests/thread.rs

@@ -101,7 +101,7 @@ fn test_thread_reset() -> Result<()> {
 
     let lua = Lua::new();
 
-    struct MyUserData(Arc<()>);
+    struct MyUserData(#[allow(unused)] Arc<()>);
     impl UserData for MyUserData {}
 
     let arc = Arc::new(());

tests/userdata.rs

@@ -402,7 +402,7 @@ fn test_userdata_take() -> Result<()> {
 
 #[test]
 fn test_userdata_destroy() -> Result<()> {
-    struct MyUserdata(Arc<()>);
+    struct MyUserdata(#[allow(unused)] Arc<()>);
 
     impl UserData for MyUserdata {}