 d70595b667
			
		
	
	
		d70595b667
		
			
		
	
	
	
	
		
			
			# Objective - Fixes #6370 - Closes #6581 ## Solution - Added the following lints to the workspace: - `std_instead_of_core` - `std_instead_of_alloc` - `alloc_instead_of_core` - Used `cargo +nightly fmt` with [item level use formatting](https://rust-lang.github.io/rustfmt/?version=v1.6.0&search=#Item%5C%3A) to split all `use` statements into single items. - Used `cargo clippy --workspace --all-targets --all-features --fix --allow-dirty` to _attempt_ to resolve the new linting issues, and intervened where the lint was unable to resolve the issue automatically (usually due to needing an `extern crate alloc;` statement in a crate root). - Manually removed certain uses of `std` where negative feature gating prevented `--all-features` from finding the offending uses. - Used `cargo +nightly fmt` with [crate level use formatting](https://rust-lang.github.io/rustfmt/?version=v1.6.0&search=#Crate%5C%3A) to re-merge all `use` statements matching Bevy's previous styling. - Manually fixed cases where the `fmt` tool could not re-merge `use` statements due to conditional compilation attributes. ## Testing - Ran CI locally ## Migration Guide The MSRV is now 1.81. Please update to this version or higher. ## Notes - This is a _massive_ change to try and push through, which is why I've outlined the semi-automatic steps I used to create this PR, in case this fails and someone else tries again in the future. - Making this change has no impact on user code, but does mean Bevy contributors will be warned to use `core` and `alloc` instead of `std` where possible. - This lint is a critical first step towards investigating `no_std` options for Bevy. --------- Co-authored-by: François Mockers <francois.mockers@vleue.com>
		
			
				
	
	
		
			63 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
| /// Call some expression only once per call site.
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| #[macro_export]
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| macro_rules! once {
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|     ($expression:expr) => {{
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|         use ::core::sync::atomic::{AtomicBool, Ordering};
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| 
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|         static SHOULD_FIRE: AtomicBool = AtomicBool::new(true);
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|         if SHOULD_FIRE.swap(false, Ordering::Relaxed) {
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|             $expression;
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|         }
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|     }};
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| }
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| 
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| /// Call [`trace!`](crate::tracing::trace) once per call site.
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| ///
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| /// Useful for logging within systems which are called every frame.
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| #[macro_export]
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| macro_rules! trace_once {
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|     ($($arg:tt)+) => ({
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|         $crate::once!($crate::tracing::trace!($($arg)+))
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|     });
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| }
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| 
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| /// Call [`debug!`](crate::tracing::debug) once per call site.
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| ///
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| /// Useful for logging within systems which are called every frame.
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| #[macro_export]
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| macro_rules! debug_once {
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|     ($($arg:tt)+) => ({
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|         $crate::once!($crate::tracing::debug!($($arg)+))
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|     });
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| }
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| 
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| /// Call [`info!`](crate::tracing::info) once per call site.
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| ///
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| /// Useful for logging within systems which are called every frame.
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| #[macro_export]
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| macro_rules! info_once {
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|     ($($arg:tt)+) => ({
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|         $crate::once!($crate::tracing::info!($($arg)+))
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|     });
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| }
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| 
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| /// Call [`warn!`](crate::tracing::warn) once per call site.
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| ///
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| /// Useful for logging within systems which are called every frame.
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| #[macro_export]
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| macro_rules! warn_once {
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|     ($($arg:tt)+) => ({
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|         $crate::once!($crate::tracing::warn!($($arg)+))
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|     });
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| }
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| 
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| /// Call [`error!`](crate::tracing::error) once per call site.
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| ///
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| /// Useful for logging within systems which are called every frame.
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| #[macro_export]
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| macro_rules! error_once {
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|     ($($arg:tt)+) => ({
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|         $crate::once!($crate::tracing::error!($($arg)+))
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|     });
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| }
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