#[cfg(not(target_arch = "wasm32"))] mod platform { /// An extension trait that enforces `Send` only on native platforms. /// /// Useful to write cross-platform async code! pub trait MaybeSend: Send {} impl MaybeSend for T where T: Send {} } #[cfg(target_arch = "wasm32")] mod platform { /// An extension trait that enforces `Send` only on native platforms. /// /// Useful to write cross-platform async code! pub trait MaybeSend {} impl MaybeSend for T {} } pub use platform::MaybeSend;