Mirrors/dioxus
2
0
Fork 0
mirror of https://github.com/DioxusLabs/dioxus synced 2024-11-23 12:43:08 +00:00
Code Issues Projects Releases Packages Wiki Activity

Reuse existing slots in provide context

Browse source
This commit is contained in:
Jonathan Kelley 2023-07-07 12:18:15 -07:00
parent 3a1b22aec2
commit 1489492ec4
1 changed files with 13 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
packages/core/src/scopes.rs
View file

@ -401,13 +401,21 @@ impl<'src> ScopeState {
/// } /// }
/// ``` /// ```
pub fn provide_context<T: 'static + Clone>(&self, value: T) -> T { pub fn provide_context<T: 'static + Clone>(&self, value: T) -> T {
let value2 = value.clone(); let mut contexts = self.shared_contexts.borrow_mut();
self.shared_contexts // If the context exists, swap it out for the new value
.borrow_mut() for ctx in contexts.iter_mut() {
.push((TypeId::of::<T>(), Box::new(value))); // Swap the ptr directly
if let Some(ctx) = ctx.1.downcast_mut::<T>() {
std::mem::swap(ctx, &mut value.clone());
return value;
}
}
value2 // Else, just push it
contexts.push((TypeId::of::<T>(), Box::new(value.clone())));
value
} }
/// Pushes the future onto the poll queue to be polled after the component renders. /// Pushes the future onto the poll queue to be polled after the component renders.