Stores: Externally tracked state and reactive collections (#4483)

* map signals mutably

* boxed signals

* remove mutable borrow type from boxed writable

* improve map mut example

* restore boxed_mut helper

* make boxed readable/writable types copy

* Move away from the ReadOnlySignal alias in examples

* automatically convert Write

* Fix some tests

* ReadSignal and WriteSignal

* move read only signal alias

* make maps copy

* store prototype

* implement derive macro

* Handle generics in the derive macro

* Make Selector boxable

* derive boxed conversion

* Get rid of store type

* Remove hardcoded type from derive macro

* selector -> store

* Refactor store implementation

* more vec methods

* todo mvc store example

* Implement Storable for HashMap

* fix write

* restore sorting logic in todomvc

* derive readable and writable

* improve todomvc store example

* Result store

* Option store

* collect dead subscribers

* fix clippy and formatting

* recognize some common foreign types automatically

* fix foreign stores in props

* slice and array selectors

* clean up store example

* writable is child owned

* box selector

* read and write to builtins

* re-use the proc macro in the derive macro

* Switch to a extension trait based approach

* switch to extension traits in the derive macro

* transposed method

* derive enums

* Expose Store::new

* remove stores from the prelude

* More consistent naming scheme for SelectorScope methods

* document hashmap methods

* document index extension

* document option ext

* document result ext

* document slice extension

* document the vec extension

* make more methods borrow the store mutably

* Move to impls to have higher priority over the builtin write extension traits

* fix deadlock

* finish stores documentation

* Document the store macro

* cleanup docs and organization

* finish derive docs

* fix typo

* fix clippy

* fix doc tests

* fix derive macro with generics

* fix clippy

* test and fix empty structs

* clean up todomvc store example

* default to a boxed store writer to make it easier to type when providing to the context api

* fix cargo doc

* fix clippy in store example

* relax generational box lifetime bounds

* relax bounds

* relax signal bounds

* fix compilation

* read store

* relax bounds on default store impls

* fix enum derive

* Convert to readsignal and writesignal automatically

* simplify type matching logic

* add write store

* unsized stores

* shrink the path vec type

* use more concrete types

* remove opaque types

* remove copy bounds

* use lens as generic name everywhere

* more consistent borrow semantics

* use a concrete type for the signal metadata and mention references in the map docs

* improve todomvc store docs

* document store derive macro internals

* refactor macro

* improve selector node documentation

* fix clippy

* add btreemap

* fix doc tests

* more option methods

* fix doc

* fix clippy

* add a bunch more result methods

* add a bunch of bounds to the iterators

* fix clippy

* remove option from subscribers

* add store macro to generate extension traits

* fix store example

* fix deadlock

* fix docs

* fix doc tests

* fix clippy

* add stores to public api

* add store macro, and then update todomvc_store example

---------

Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>

packages/hooks/src/use_future.rs

@@ -181,7 +181,7 @@ impl Readable for UseFuture {
         self.state.try_peek_unchecked()
     }
 
-    fn subscribers(&self) -> Option<Subscribers> {
+    fn subscribers(&self) -> Subscribers {
         self.state.subscribers()
     }
 }

packages/hooks/src/use_memo.rs

@@ -6,7 +6,7 @@ use dioxus_signals::Memo;
 #[doc = include_str!("../docs/rules_of_hooks.md")]
 #[doc = include_str!("../docs/moving_state_around.md")]
 #[track_caller]
-pub fn use_memo<R: PartialEq>(mut f: impl FnMut() -> R + 'static) -> Memo<R> {
+pub fn use_memo<R: PartialEq + 'static>(mut f: impl FnMut() -> R + 'static) -> Memo<R> {
     let callback = use_callback(move |_| f());
     let caller = std::panic::Location::caller();
     #[allow(clippy::redundant_closure)]

packages/hooks/src/use_resource.rs

@@ -454,7 +454,7 @@ impl<T> Readable for Resource<T> {
         self.value.try_peek_unchecked()
     }
 
-    fn subscribers(&self) -> Option<Subscribers> {
+    fn subscribers(&self) -> Subscribers {
         self.value.subscribers()
     }
 }

packages/hooks/src/use_set_compare.rs

@@ -40,7 +40,7 @@ use std::hash::Hash;
 #[doc = include_str!("../docs/rules_of_hooks.md")]
 #[doc = include_str!("../docs/moving_state_around.md")]
 #[must_use]
-pub fn use_set_compare<R: Eq + Hash>(f: impl FnMut() -> R + 'static) -> SetCompare<R> {
+pub fn use_set_compare<R: Eq + Hash + 'static>(f: impl FnMut() -> R + 'static) -> SetCompare<R> {
     use_hook(move || SetCompare::new(f))
 }
 
@@ -48,7 +48,7 @@ pub fn use_set_compare<R: Eq + Hash>(f: impl FnMut() -> R + 'static) -> SetCompa
 #[doc = include_str!("../docs/rules_of_hooks.md")]
 #[doc = include_str!("../docs/moving_state_around.md")]
 #[must_use]
-pub fn use_set_compare_equal<R: Eq + Hash>(
+pub fn use_set_compare_equal<R: Eq + Hash + 'static>(
     value: R,
     mut compare: SetCompare<R>,
 ) -> ReadSignal<bool> {