1aefa5178b
This is the core change: https://github.com/zed-industries/zed/pull/26758/files#diff-044302c0d57147af17e68a0009fee3e8dcdfb4f32c27a915e70cfa80e987f765R1052 TODO: - [x] Use AsyncFn instead of Fn() -> Future in GPUI spawn methods - [x] Implement it in the whole app - [x] Implement it in the debugger - [x] Glance at the RPC crate, and see if those box future methods can be switched over. Answer: It can't directly, as you can't make an AsyncFn* into a trait object. There's ways around that, but they're all more complex than just keeping the code as is. - [ ] Fix platform specific code Release Notes: - N/A
54 lines
1.5 KiB
Rust
54 lines
1.5 KiB
Rust
use futures::{channel::oneshot, FutureExt};
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use gpui::{Context, Task};
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use std::{marker::PhantomData, time::Duration};
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pub struct DebouncedDelay<E: 'static> {
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task: Option<Task<()>>,
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cancel_channel: Option<oneshot::Sender<()>>,
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_phantom_data: PhantomData<E>,
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}
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impl<E: 'static> Default for DebouncedDelay<E> {
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fn default() -> Self {
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Self::new()
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}
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}
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impl<E: 'static> DebouncedDelay<E> {
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pub fn new() -> Self {
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Self {
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task: None,
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cancel_channel: None,
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_phantom_data: PhantomData,
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}
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}
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pub fn fire_new<F>(&mut self, delay: Duration, cx: &mut Context<E>, func: F)
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where
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F: 'static + Send + FnOnce(&mut E, &mut Context<E>) -> Task<()>,
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{
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if let Some(channel) = self.cancel_channel.take() {
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_ = channel.send(());
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}
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let (sender, mut receiver) = oneshot::channel::<()>();
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self.cancel_channel = Some(sender);
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let previous_task = self.task.take();
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self.task = Some(cx.spawn(async move |entity, cx| {
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let mut timer = cx.background_executor().timer(delay).fuse();
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if let Some(previous_task) = previous_task {
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previous_task.await;
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}
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futures::select_biased! {
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_ = receiver => return,
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_ = timer => {}
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}
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if let Ok(task) = entity.update(cx, |project, cx| (func)(project, cx)) {
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task.await;
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}
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}));
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}
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}
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