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use crate::stdlib::cmp::Ordering;
use tracing_core::Level;
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
pub struct LevelFilter(Option<Level>);
impl From<Level> for LevelFilter {
#[inline]
fn from(level: Level) -> Self {
Self::from_level(level)
}
}
impl LevelFilter {
pub const OFF: LevelFilter = LevelFilter(None);
pub const ERROR: LevelFilter = LevelFilter::from_level(Level::ERROR);
pub const WARN: LevelFilter = LevelFilter::from_level(Level::WARN);
pub const INFO: LevelFilter = LevelFilter::from_level(Level::INFO);
pub const DEBUG: LevelFilter = LevelFilter::from_level(Level::DEBUG);
pub const TRACE: LevelFilter = LevelFilter(Some(Level::TRACE));
pub const fn from_level(level: Level) -> Self {
Self(Some(level))
}
pub const fn into_level(self) -> Option<Level> {
self.0
}
}
impl PartialEq<LevelFilter> for Level {
fn eq(&self, other: &LevelFilter) -> bool {
match other.0 {
None => false,
Some(ref level) => self.eq(level),
}
}
}
impl PartialOrd<LevelFilter> for Level {
fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering> {
match other.0 {
None => Some(Ordering::Less),
Some(ref level) => self.partial_cmp(level),
}
}
}
pub const STATIC_MAX_LEVEL: LevelFilter = MAX_LEVEL;
cfg_if! {
if #[cfg(all(not(debug_assertions), feature = "release_max_level_off"))] {
const MAX_LEVEL: LevelFilter = LevelFilter::OFF;
} else if #[cfg(all(not(debug_assertions), feature = "release_max_level_error"))] {
const MAX_LEVEL: LevelFilter = LevelFilter::ERROR;
} else if #[cfg(all(not(debug_assertions), feature = "release_max_level_warn"))] {
const MAX_LEVEL: LevelFilter = LevelFilter::WARN;
} else if #[cfg(all(not(debug_assertions), feature = "release_max_level_info"))] {
const MAX_LEVEL: LevelFilter = LevelFilter::INFO;
} else if #[cfg(all(not(debug_assertions), feature = "release_max_level_debug"))] {
const MAX_LEVEL: LevelFilter = LevelFilter::DEBUG;
} else if #[cfg(all(not(debug_assertions), feature = "release_max_level_trace"))] {
const MAX_LEVEL: LevelFilter = LevelFilter::TRACE;
} else if #[cfg(feature = "max_level_off")] {
const MAX_LEVEL: LevelFilter = LevelFilter::OFF;
} else if #[cfg(feature = "max_level_error")] {
const MAX_LEVEL: LevelFilter = LevelFilter::ERROR;
} else if #[cfg(feature = "max_level_warn")] {
const MAX_LEVEL: LevelFilter = LevelFilter::WARN;
} else if #[cfg(feature = "max_level_info")] {
const MAX_LEVEL: LevelFilter = LevelFilter::INFO;
} else if #[cfg(feature = "max_level_debug")] {
const MAX_LEVEL: LevelFilter = LevelFilter::DEBUG;
} else {
const MAX_LEVEL: LevelFilter = LevelFilter::TRACE;
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn filter_level_conversion() {
let mapping = [
(LevelFilter::OFF, None),
(LevelFilter::ERROR, Some(Level::ERROR)),
(LevelFilter::WARN, Some(Level::WARN)),
(LevelFilter::INFO, Some(Level::INFO)),
(LevelFilter::DEBUG, Some(Level::DEBUG)),
(LevelFilter::TRACE, Some(Level::TRACE)),
];
for (filter, level) in mapping.iter() {
assert_eq!(filter.clone().into_level(), *level);
if let Some(level) = level {
assert_eq!(LevelFilter::from_level(level.clone()), *filter);
}
}
}
}