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https://github.com/DioxusLabs/dioxus
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fix: remove clutter
This commit is contained in:
Jonathan Kelley
parent
fbaf25dc6b
commit
3837899a7e
1 changed files with 0 additions and 182 deletions
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@ -1,182 +0,0 @@
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mod use2 {
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#![allow(missing_docs)]
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use dioxus_core::{ScopeState, TaskId};
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use std::{
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any::Any,
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cell::{Cell, RefCell},
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future::Future,
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rc::Rc,
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};
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/// A future that resolves to a value.
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///
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/// This runs the future only once - though the future may be regenerated
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/// through the [`UseFuture::restart`] method.
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///
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/// This is commonly used for components that cannot be rendered until some
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/// asynchronous operation has completed.
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///
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///
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///
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///
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///
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pub fn use_future<'a>(
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// pub fn use_future<'a, T: 'static, F: Future<Output = T> + 'static>(
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cx: &'a ScopeState,
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) -> &'a UseFuture<()> {
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// let state = cx.use_hook(move |_| UseFuture {
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// update: cx.schedule_update(),
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// needs_regen: Cell::new(true),
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// slot: Rc::new(Cell::new(None)),
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// value: None,
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// task: None,
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// pending: true,
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// dep_cont: Cell::new(0),
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// deps: RefCell::new(Vec::new()),
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// first_time: true,
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// });
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// if let Some(value) = state.slot.take() {
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// state.value = Some(value);
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// state.task = None;
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// }
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// if state.needs_regen.get() {
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// // We don't need regen anymore
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// state.needs_regen.set(false);
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// state.pending = false;
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// // Create the new future
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// let fut = new_fut();
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// // Clone in our cells
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// let slot = state.slot.clone();
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// let updater = state.update.clone();
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// state.task = Some(cx.push_future(async move {
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// let res = fut.await;
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// slot.set(Some(res));
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// updater();
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// }));
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// }
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// state.first_time = false;
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// state
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// new_fut: impl FnOnce() -> F,
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todo!()
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}
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pub enum FutureState<'a, T> {
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Pending,
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Complete(&'a T),
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Regenerating(&'a T), // the old value
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}
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pub struct UseFuture<T> {
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update: Rc<dyn Fn()>,
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needs_regen: Cell<bool>,
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value: Option<T>,
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slot: Rc<Cell<Option<T>>>,
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task: Option<TaskId>,
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pending: bool,
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deps: RefCell<Vec<Box<dyn Any>>>,
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dep_cont: Cell<usize>,
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first_time: bool,
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}
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impl<T> UseFuture<T> {
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pub fn restart(&self) {
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self.needs_regen.set(true);
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(self.update)();
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}
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// clears the value in the future slot without starting the future over
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pub fn clear(&self) -> Option<T> {
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(self.update)();
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self.slot.replace(None)
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}
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// Manually set the value in the future slot without starting the future over
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pub fn set(&self, new_value: T) {
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self.slot.set(Some(new_value));
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self.needs_regen.set(true);
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(self.update)();
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}
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pub fn value(&self) -> Option<&T> {
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self.value.as_ref()
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}
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pub fn state(&self) -> FutureState<T> {
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// self.value.as_ref()
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FutureState::Pending
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}
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pub fn build<F>(&self, new_fut: impl FnOnce() -> F) {}
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}
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#[test]
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fn test_use_future_deps() {
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use dioxus_core::prelude::*;
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struct MyProps {
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val: String,
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name: i32,
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}
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fn app(cx: Scope<MyProps>) -> Element {
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let MyProps { val, name } = cx.props;
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// let val = use_c(&cx)
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// .use_dep(val)
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// .restart_if(|| false)
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// .use_dep(name)
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// .build(|(val, name)| async move {});
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// async fn fetch_thing(name: String, num: i32) -> String {
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// format!("{} {}", name, num)
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// }
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// let val = use_future(&cx, || fetch_thing(val.clone(), *name))
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// .with_dep(val)
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// .with_dep(name)
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// .restart_if(|| false);
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None
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}
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}
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// pub struct CoroutineBuilder<'a, const PARAM: usize> {
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// deps: Vec<Box<dyn Any>>,
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// cx: &'a ScopeState,
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// }
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// macro_rules! dep_impl {
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// ($id1:literal to $id2:literal) => {
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// impl<'a> CoroutineBuilder<'a, $id1> {
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// pub fn use_dep<F: 'static + PartialEq + Clone>(
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// mut self,
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// dep: &F,
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// ) -> CoroutineBuilder<'a, $id2> {
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// self.deps.push(Box::new(dep.clone()));
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// unsafe { std::mem::transmute(self) }
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// }
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// }
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// };
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// }
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// dep_impl!(0 to 1);
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// dep_impl!(1 to 2);
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// dep_impl!(2 to 3);
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// dep_impl!(3 to 4);
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// dep_impl!(4 to 5);
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// dep_impl!(5 to 6);
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// dep_impl!(6 to 7);
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// dep_impl!(7 to 8);
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// dep_impl!(8 to 9);
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}
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