dioxus/packages/web/examples/todomvc/recoil.rs

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2021-04-01 04:01:42 +00:00
use dioxus_core::context::Context;
pub struct RecoilContext<T: 'static> {
_inner: T,
}
impl<T: 'static> RecoilContext<T> {
/// Get the value of an atom. Returns a reference to the underlying data.
pub fn get(&self) {}
/// Replace an existing value with a new value
///
/// This does not replace the value instantly, and all calls to "get" within the current scope will return
pub fn set(&self) {}
// Modify lets you modify the value in place. However, because there's no previous value around to compare
// the new one with, we are unable to memoize the change. As such, all downsteam users of this Atom will
// be updated, causing all subsrcibed components to re-render.
//
// This is fine for most values, but might not be performant when dealing with collections. For collections,
// use the "Family" variants as these will stay memoized for inserts, removals, and modifications.
//
// Note - like "set" this won't propogate instantly. Once all "gets" are dropped, only then will we run the
pub fn modify(&self) {}
}
pub fn use_callback<'a, G>(c: &Context<'a>, f: impl Fn() -> G) -> &'a RecoilContext<G> {
todo!()
}
pub fn use_atom<T: PartialEq, O>(c: &Context, t: &'static Atom<T>) -> O {
todo!()
}
pub fn use_batom<T: PartialEq, O>(c: &Context, t: impl Readable) -> O {
todo!()
}
pub trait Readable {}
impl<T: PartialEq> Readable for &'static Atom<T> {}
impl<K: PartialEq, V: PartialEq> Readable for &'static AtomFamily<K, V> {}
pub fn use_atom_family<'a, K: PartialEq, V: PartialEq>(
c: &Context<'a>,
t: &'static AtomFamily<K, V>,
g: K,
) -> &'a V {
todo!()
}
pub use atoms::{atom, Atom};
pub use atoms::{atom_family, AtomFamily};
mod atoms {
use super::*;
pub struct AtomBuilder<T: PartialEq> {
pub key: String,
pub manual_init: Option<Box<dyn Fn() -> T>>,
_never: std::marker::PhantomData<T>,
}
impl<T: PartialEq> AtomBuilder<T> {
pub fn new() -> Self {
Self {
key: uuid::Uuid::new_v4().to_string(),
manual_init: None,
_never: std::marker::PhantomData {},
}
}
pub fn init<A: Fn() -> T + 'static>(&mut self, f: A) {
self.manual_init = Some(Box::new(f));
}
pub fn set_key(&mut self, _key: &'static str) {}
}
pub struct atom<T: PartialEq>(pub fn(&mut AtomBuilder<T>) -> T);
pub type Atom<T: PartialEq> = atom<T>;
pub struct AtomFamilyBuilder<K, V> {
_never: std::marker::PhantomData<(K, V)>,
}
pub struct atom_family<K: PartialEq, V: PartialEq>(pub fn(&mut AtomFamilyBuilder<K, V>));
pub type AtomFamily<K: PartialEq, V: PartialEq> = atom_family<K, V>;
}
2021-04-02 01:44:18 +00:00
pub use selectors::selector;
mod selectors {
pub struct SelectorBuilder<Out, const Built: bool> {
_p: std::marker::PhantomData<Out>,
}
impl<O> SelectorBuilder<O, false> {
pub fn getter(self, f: impl Fn(()) -> O) -> SelectorBuilder<O, true> {
std::rc::Rc::pin(value)
todo!()
}
}
pub struct selector<O>(pub fn(SelectorBuilder<O, false>) -> SelectorBuilder<O, true>);
}