41 lines
907 B
Rust
41 lines
907 B
Rust
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#[cfg(target_arch = "wasm32")]
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use std::{
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pin::Pin,
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task::{Context, Poll},
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};
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#[cfg(not(target_arch = "wasm32"))]
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pub use tokio::spawn;
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#[cfg(target_arch = "wasm32")]
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use wasm_bindgen_futures::spawn_local;
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#[cfg(target_arch = "wasm32")]
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use futures::{future::RemoteHandle, Future, FutureExt};
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#[cfg(target_arch = "wasm32")]
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pub fn spawn<F, T>(future: F) -> JoinHandle<T>
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where
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F: Future<Output = T> + 'static,
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{
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let fut = future.unit_error();
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let (fut, handle) = fut.remote_handle();
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spawn_local(fut);
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JoinHandle { handle }
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}
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#[cfg(target_arch = "wasm32")]
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pub struct JoinHandle<T> {
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handle: RemoteHandle<Result<T, ()>>,
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}
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#[cfg(target_arch = "wasm32")]
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impl<T: 'static> Future for JoinHandle<T> {
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type Output = Result<T, ()>;
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fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
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Pin::new(&mut self.handle).poll(cx)
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}
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}
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