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Make Widget::diff mutable

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This commit is contained in:
Héctor Ramón Jiménez 2025-08-20 23:14:23 +02:00
parent 31bc6d48cd
commit 497ebcd0c3
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GPG key ID: 7CC46565708259A7
31 changed files with 114 additions and 81 deletions
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37
core/src/element.rs
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@ -9,7 +9,7 @@ use crate::{
Vector, Widget,
};
use std::borrow::Borrow;
use std::borrow::{Borrow, BorrowMut};
/// A generic [`Widget`].
///
@ -239,6 +239,37 @@ impl<'a, Message, Theme, Renderer>
}
}
impl<'a, Message, Theme, Renderer>
Borrow<dyn Widget<Message, Theme, Renderer> + 'a>
for &mut Element<'a, Message, Theme, Renderer>
{
fn borrow(&self) -> &(dyn Widget<Message, Theme, Renderer> + 'a) {
self.widget.borrow()
}
}
impl<'a, Message, Theme, Renderer>
BorrowMut<dyn Widget<Message, Theme, Renderer> + 'a>
for Element<'a, Message, Theme, Renderer>
{
fn borrow_mut(
&mut self,
) -> &mut (dyn Widget<Message, Theme, Renderer> + 'a) {
self.widget.borrow_mut()
}
}
impl<'a, Message, Theme, Renderer>
BorrowMut<dyn Widget<Message, Theme, Renderer> + 'a>
for &mut Element<'a, Message, Theme, Renderer>
{
fn borrow_mut(
&mut self,
) -> &mut (dyn Widget<Message, Theme, Renderer> + 'a) {
self.widget.borrow_mut()
}
}
struct Map<'a, A, B, Theme, Renderer> {
widget: Box<dyn Widget<A, Theme, Renderer> + 'a>,
mapper: Box<dyn Fn(A) -> B + 'a>,
@ -278,7 +309,7 @@ where
self.widget.children()
}
fn diff(&self, tree: &mut Tree) {
fn diff(&mut self, tree: &mut Tree) {
self.widget.diff(tree);
}
@ -421,7 +452,7 @@ where
self.element.widget.children()
}
fn diff(&self, tree: &mut Tree) {
fn diff(&mut self, tree: &mut Tree) {
self.element.widget.diff(tree);
}