e9b8c71da0
# Objective When working within `bevy_ecs`, we can't use the `log_once` macros due to their placement in `bevy_log` - which depends on `bevy_ecs`. All this create does is migrate those macros to the `bevy_utils` crate, while still re-exporting them in `bevy_log`. created to resolve this: https://github.com/bevyengine/bevy/pull/11417#discussion_r1458100211 --------- Co-authored-by: François <mockersf@gmail.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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($expression:expr) => {{
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use ::std::sync::atomic::{AtomicBool, Ordering};
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static SHOULD_FIRE: AtomicBool = AtomicBool::new(true);
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if SHOULD_FIRE.swap(false, Ordering::Relaxed) {
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$expression;
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}
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}};
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}
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/// 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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/// 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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/// 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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/// 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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/// 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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