Require functions to be Send + Sync

Author: MrGVSV

crates/bevy_reflect/src/func/function.rs

@@ -91,7 +91,9 @@ pub type FunctionResult<'a> = Result<Return<'a>, FunctionError>;
 /// ```
 pub struct DynamicFunction<'env> {
     info: FunctionInfo,
-    func: Box<dyn for<'a> FnMut(ArgList<'a>, &FunctionInfo) -> FunctionResult<'a> + 'env>,
+    func: Box<
+        dyn for<'a> FnMut(ArgList<'a>, &FunctionInfo) -> FunctionResult<'a> + Send + Sync + 'env,
+    >,
 }
 
 impl<'env> DynamicFunction<'env> {
@@ -101,7 +103,9 @@ impl<'env> DynamicFunction<'env> {
     ///
     /// It's important that the function signature matches the provided [`FunctionInfo`].
     /// This info is used to validate the arguments and return value.
-    pub fn new<F: for<'a> FnMut(ArgList<'a>, &FunctionInfo) -> FunctionResult<'a> + 'env>(
+    pub fn new<
+        F: for<'a> FnMut(ArgList<'a>, &FunctionInfo) -> FunctionResult<'a> + Send + Sync + 'env,
+    >(
         func: F,
         info: FunctionInfo,
     ) -> Self {

crates/bevy_reflect/src/func/into_function.rs

@@ -118,6 +118,7 @@ macro_rules! impl_into_function {
             R: $crate::func::IntoReturn + $crate::func::args::GetOwnership + $crate::TypePath,
             F: FnMut($($Arg),*) -> R + 'env,
             F: for<'a> FnMut($($Arg::Item<'a>),*) -> R + 'env,
+            F: Send + Sync,
         {
             fn into_function(mut self) -> $crate::func::DynamicFunction<'env> {
                 const COUNT: usize = count_tts!($($Arg)*);
@@ -166,6 +167,7 @@ macro_rules! impl_into_function {
             $($Arg: $crate::func::args::FromArg + $crate::func::args::GetOwnership + $crate::TypePath,)*
             F: for<'a> FnMut(&'a Receiver, $($Arg),*) -> &'a R + 'env,
             F: for<'a> FnMut(&'a Receiver, $($Arg::Item<'a>),*) -> &'a R + 'env,
+            F: Send + Sync,
         {
             fn into_function(mut self) -> $crate::func::DynamicFunction<'env> {
                 const COUNT: usize = count_tts!(Receiver $($Arg)*);
@@ -217,6 +219,7 @@ macro_rules! impl_into_function {
             $($Arg: $crate::func::args::FromArg + $crate::func::args::GetOwnership + $crate::TypePath,)*
             F: for<'a> FnMut(&'a mut Receiver, $($Arg),*) -> &'a mut R + 'env,
             F: for<'a> FnMut(&'a mut Receiver, $($Arg::Item<'a>),*) -> &'a mut R + 'env,
+            F: Send + Sync,
         {
             fn into_function(mut self) -> $crate::func::DynamicFunction<'env> {
                 const COUNT: usize = count_tts!(Receiver $($Arg)*);
@@ -268,6 +271,7 @@ macro_rules! impl_into_function {
             $($Arg: $crate::func::args::FromArg + $crate::func::args::GetOwnership + $crate::TypePath,)*
             F: for<'a> FnMut(&'a mut Receiver, $($Arg),*) -> &'a R + 'env,
             F: for<'a> FnMut(&'a mut Receiver, $($Arg::Item<'a>),*) -> &'a R + 'env,
+            F: Send + Sync,
         {
             fn into_function(mut self) -> $crate::func::DynamicFunction<'env> {
                 const COUNT: usize = count_tts!(Receiver $($Arg)*);