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Draft experimental hotpatching support 🎉

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Thanks to `subsecond` by the Dioxus folks!
This commit is contained in:
Héctor Ramón Jiménez 2025-06-06 22:58:59 +02:00
parent 5ca5000cdc
commit 10bbe44c30
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GPG key ID: 7CC46565708259A7
10 changed files with 212 additions and 35 deletions
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22
src/application.rs
View file

@ -38,6 +38,8 @@ use crate::{
Element, Executor, Font, Result, Settings, Size, Subscription, Task,
};
use iced_debug as debug;
use std::borrow::Cow;
pub mod timed;
@ -126,7 +128,7 @@ where
state: &mut Self::State,
message: Self::Message,
) -> Task<Self::Message> {
self.update.update(state, message)
debug::hot(|| self.update.update(state, message))
}
fn view<'a>(
@ -134,7 +136,7 @@ where
state: &'a Self::State,
_window: window::Id,
) -> Element<'a, Self::Message, Self::Theme, Self::Renderer> {
self.view.view(state)
debug::hot(|| self.view.view(state))
}
}
@ -327,7 +329,7 @@ impl<P: Program> Application<P> {
> {
Application {
raw: program::with_title(self.raw, move |state, _window| {
title.title(state)
debug::hot(|| title.title(state))
}),
settings: self.settings,
window: self.window,
@ -342,7 +344,9 @@ impl<P: Program> Application<P> {
impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
> {
Application {
raw: program::with_subscription(self.raw, f),
raw: program::with_subscription(self.raw, move |state| {
debug::hot(|| f(state))
}),
settings: self.settings,
window: self.window,
}
@ -356,7 +360,9 @@ impl<P: Program> Application<P> {
impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
> {
Application {
raw: program::with_theme(self.raw, move |state, _window| f(state)),
raw: program::with_theme(self.raw, move |state, _window| {
debug::hot(|| f(state))
}),
settings: self.settings,
window: self.window,
}
@ -370,7 +376,9 @@ impl<P: Program> Application<P> {
impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
> {
Application {
raw: program::with_style(self.raw, f),
raw: program::with_style(self.raw, move |state, theme| {
debug::hot(|| f(state, theme))
}),
settings: self.settings,
window: self.window,
}
@ -385,7 +393,7 @@ impl<P: Program> Application<P> {
> {
Application {
raw: program::with_scale_factor(self.raw, move |state, _window| {
f(state)
debug::hot(|| f(state))
}),
settings: self.settings,
window: self.window,

25
src/application/timed.rs
View file

@ -6,6 +6,8 @@ use crate::time::Instant;
use crate::window;
use crate::{Element, Program, Settings, Subscription, Task};
use iced_debug as debug;
/// Creates an [`Application`] with an `update` function that also
/// takes the [`Instant`] of each `Message`.
///
@ -97,10 +99,12 @@ where
state: &mut Self::State,
(message, now): Self::Message,
) -> Task<Self::Message> {
self.update
.update(state, message, now)
.into()
.map(|message| (message, Instant::now()))
debug::hot(move || {
self.update
.update(state, message, now)
.into()
.map(|message| (message, Instant::now()))
})
}
fn view<'a>(
@ -108,16 +112,21 @@ where
state: &'a Self::State,
_window: window::Id,
) -> Element<'a, Self::Message, Self::Theme, Self::Renderer> {
self.view
.view(state)
.map(|message| (message, Instant::now()))
debug::hot(|| {
self.view
.view(state)
.map(|message| (message, Instant::now()))
})
}
fn subscription(
&self,
state: &Self::State,
) -> self::Subscription<Self::Message> {
(self.subscription)(state).map(|message| (message, Instant::now()))
debug::hot(|| {
(self.subscription)(state)
.map(|message| (message, Instant::now()))
})
}
}

24
src/daemon.rs
View file

@ -6,6 +6,8 @@ use crate::theme;
use crate::window;
use crate::{Element, Executor, Font, Result, Settings, Subscription, Task};
use iced_debug as debug;
use std::borrow::Cow;
/// Creates an iced [`Daemon`] given its boot, update, and view logic.
@ -72,7 +74,7 @@ where
state: &mut Self::State,
message: Self::Message,
) -> Task<Self::Message> {
self.update.update(state, message)
debug::hot(|| self.update.update(state, message))
}
fn view<'a>(
@ -80,7 +82,7 @@ where
state: &'a Self::State,
window: window::Id,
) -> Element<'a, Self::Message, Self::Theme, Self::Renderer> {
self.view.view(state, window)
debug::hot(|| self.view.view(state, window))
}
}
@ -176,7 +178,7 @@ impl<P: Program> Daemon<P> {
> {
Daemon {
raw: program::with_title(self.raw, move |state, window| {
title.title(state, window)
debug::hot(|| title.title(state, window))
}),
settings: self.settings,
}
@ -190,7 +192,9 @@ impl<P: Program> Daemon<P> {
impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
> {
Daemon {
raw: program::with_subscription(self.raw, f),
raw: program::with_subscription(self.raw, move |state| {
debug::hot(|| f(state))
}),
settings: self.settings,
}
}
@ -203,7 +207,9 @@ impl<P: Program> Daemon<P> {
impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
> {
Daemon {
raw: program::with_theme(self.raw, f),
raw: program::with_theme(self.raw, move |state, window| {
debug::hot(|| f(state, window))
}),
settings: self.settings,
}
}
@ -216,7 +222,9 @@ impl<P: Program> Daemon<P> {
impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
> {
Daemon {
raw: program::with_style(self.raw, f),
raw: program::with_style(self.raw, move |state, theme| {
debug::hot(|| f(state, theme))
}),
settings: self.settings,
}
}
@ -229,7 +237,9 @@ impl<P: Program> Daemon<P> {
impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
> {
Daemon {
raw: program::with_scale_factor(self.raw, f),
raw: program::with_scale_factor(self.raw, move |state, window| {
debug::hot(|| f(state, window))
}),
settings: self.settings,
}
}