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Relaxed runner type from Fn to FnOnce (#8961)

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# Objective

Relax unnecessary type restrictions on `App.runner` function.

## Solution

Changed the type of `App.runner` from `Fn(App)` to `FnOnce(App)`.
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B_head 2023-06-29 09:48:37 +09:00 committed by GitHub
parent f4fdbef60b
commit 418d3273fd
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1 changed files with 2 additions and 2 deletions
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4
crates/bevy_app/src/app.rs
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@ -64,7 +64,7 @@ pub struct App {
/// the application's event loop and advancing the [`Schedule`].
/// Typically, it is not configured manually, but set by one of Bevy's built-in plugins.
/// See `bevy::winit::WinitPlugin` and [`ScheduleRunnerPlugin`](crate::schedule_runner::ScheduleRunnerPlugin).
pub runner: Box<dyn Fn(App) + Send>, // Send bound is required to make App Send
pub runner: Box<dyn FnOnce(App) + Send>, // Send bound is required to make App Send
/// The schedule that systems are added to by default.
///
/// The schedule that runs the main loop of schedule execution.
@ -651,7 +651,7 @@ impl App {
/// App::new()
/// .set_runner(my_runner);
/// ```
pub fn set_runner(&mut self, run_fn: impl Fn(App) + 'static + Send) -> &mut Self {
pub fn set_runner(&mut self, run_fn: impl FnOnce(App) + 'static + Send) -> &mut Self {
self.runner = Box::new(run_fn);
self
}