Fix feature flags for owned types

src/conversion.rs

@@ -18,7 +18,7 @@ use crate::types::{LightUserData, MaybeSend};
 use crate::userdata::{AnyUserData, UserData, UserDataRef, UserDataRefMut};
 use crate::value::{FromLua, IntoLua, Nil, Value};
 
-#[cfg(feature = "unstable")]
+#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
 use crate::{function::OwnedFunction, table::OwnedTable, userdata::OwnedAnyUserData};
 
 #[cfg(feature = "async")]
@@ -79,7 +79,8 @@ impl<'lua> FromLua<'lua> for Table<'lua> {
     }
 }
 
-#[cfg(feature = "unstable")]
+#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
+#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
 impl<'lua> IntoLua<'lua> for OwnedTable {
     #[inline]
     fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
@@ -87,7 +88,8 @@ impl<'lua> IntoLua<'lua> for OwnedTable {
     }
 }
 
-#[cfg(feature = "unstable")]
+#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
+#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
 impl<'lua> FromLua<'lua> for OwnedTable {
     #[inline]
     fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<OwnedTable> {
@@ -116,7 +118,8 @@ impl<'lua> FromLua<'lua> for Function<'lua> {
     }
 }
 
-#[cfg(feature = "unstable")]
+#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
+#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
 impl<'lua> IntoLua<'lua> for OwnedFunction {
     #[inline]
     fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
@@ -124,7 +127,8 @@ impl<'lua> IntoLua<'lua> for OwnedFunction {
     }
 }
 
-#[cfg(feature = "unstable")]
+#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
+#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
 impl<'lua> FromLua<'lua> for OwnedFunction {
     #[inline]
     fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<OwnedFunction> {
@@ -189,7 +193,8 @@ impl<'lua> FromLua<'lua> for AnyUserData<'lua> {
     }
 }
 
-#[cfg(feature = "unstable")]
+#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
+#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
 impl<'lua> IntoLua<'lua> for OwnedAnyUserData {
     #[inline]
     fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
@@ -197,7 +202,8 @@ impl<'lua> IntoLua<'lua> for OwnedAnyUserData {
     }
 }
 
-#[cfg(feature = "unstable")]
+#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
+#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
 impl<'lua> FromLua<'lua> for OwnedAnyUserData {
     #[inline]
     fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<OwnedAnyUserData> {

src/function.rs

@@ -33,6 +33,7 @@ pub struct OwnedFunction(pub(crate) crate::types::LuaOwnedRef);
 #[cfg(feature = "unstable")]
 impl OwnedFunction {
     /// Get borrowed handle to the underlying Lua function.
+    #[cfg_attr(feature = "send", allow(unused))]
     pub const fn to_ref(&self) -> Function {
         Function(self.0.to_ref())
     }
@@ -400,8 +401,8 @@ impl<'lua> Function<'lua> {
     }
 
     /// Convert this handle to owned version.
-    #[cfg(feature = "unstable")]
-    #[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
+    #[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
+    #[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
     #[inline]
     pub fn into_owned(self) -> OwnedFunction {
         OwnedFunction(self.0.into_owned())
@@ -476,6 +477,6 @@ mod assertions {
 
     static_assertions::assert_not_impl_any!(Function: Send);
 
-    #[cfg(feature = "unstable")]
+    #[cfg(all(feature = "unstable", not(feature = "send")))]
     static_assertions::assert_not_impl_any!(OwnedFunction: Send);
 }

src/lib.rs

@@ -151,7 +151,7 @@ pub mod serde;
 extern crate mlua_derive;
 
 // Unstable features
-#[cfg(all(feature = "unstable", not(feature = "send")))]
+#[cfg(feature = "unstable")]
 pub use crate::{function::OwnedFunction, table::OwnedTable, userdata::OwnedAnyUserData};
 
 /// Create a type that implements [`AsChunk`] and can capture Rust variables.

src/lua.rs

@@ -2472,7 +2472,7 @@ impl Lua {
         }
     }
 
-    #[cfg(feature = "unstable")]
+    #[cfg(all(feature = "unstable", not(feature = "send")))]
     pub(crate) fn adopt_owned_ref(&self, loref: crate::types::LuaOwnedRef) -> LuaRef {
         assert!(
             Arc::ptr_eq(&loref.lua.0, &self.0),

src/table.rs

@@ -33,6 +33,7 @@ pub struct OwnedTable(pub(crate) crate::types::LuaOwnedRef);
 #[cfg(feature = "unstable")]
 impl OwnedTable {
     /// Get borrowed handle to the underlying Lua table.
+    #[cfg_attr(feature = "send", allow(unused))]
     pub const fn to_ref(&self) -> Table {
         Table(self.0.to_ref())
     }
@@ -584,8 +585,8 @@ impl<'lua> Table<'lua> {
     }
 
     /// Convert this handle to owned version.
-    #[cfg(feature = "unstable")]
-    #[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
+    #[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
+    #[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
     #[inline]
     pub fn into_owned(self) -> OwnedTable {
         OwnedTable(self.0.into_owned())

src/userdata.rs

@@ -746,6 +746,8 @@ pub struct OwnedAnyUserData(pub(crate) crate::types::LuaOwnedRef);
 
 #[cfg(feature = "unstable")]
 impl OwnedAnyUserData {
+    /// Get borrowed handle to the underlying Lua userdata.
+    #[cfg_attr(feature = "send", allow(unused))]
     pub const fn to_ref(&self) -> AnyUserData {
         AnyUserData(self.0.to_ref())
     }
@@ -1029,8 +1031,8 @@ impl<'lua> AnyUserData<'lua> {
         }
     }
 
-    #[cfg(feature = "unstable")]
-    #[cfg_attr(docsrs, doc(cfg(feature = "unstable")))]
+    #[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
+    #[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
     #[inline]
     pub fn into_owned(self) -> OwnedAnyUserData {
         OwnedAnyUserData(self.0.into_owned())
@@ -1285,6 +1287,6 @@ mod assertions {
 
     static_assertions::assert_not_impl_any!(AnyUserData: Send);
 
-    #[cfg(feature = "unstable")]
+    #[cfg(all(feature = "unstable", not(feature = "send")))]
     static_assertions::assert_not_impl_any!(OwnedAnyUserData: Send);
 }