tuwunel_core/utils/result/
log_err.rs

1use std::fmt::Display;
2
3use tracing::Level;
4
5use super::Result;
6use crate::error;
7
8/// Logs display-formatted errors without changing their result.
9///
10/// Successful values pass through without producing a record. Errors remain
11/// available to the caller after being logged.
12pub trait LogErr<T, E: Display> {
13	/// Logs an error at `level` and returns the original result.
14	///
15	/// The error is formatted with [`Display`]. Successful values produce no
16	/// log record.
17	#[must_use]
18	fn err_log(self, level: Level) -> Self;
19
20	/// Logs an error at the error tracing level.
21	///
22	/// [`LogErr::err_log`] supplies this convenience form with
23	/// [`Level::ERROR`]. The original result is returned after inspection.
24	#[must_use]
25	fn log_err(self) -> Self
26	where
27		Self: Sized,
28	{
29		self.err_log(Level::ERROR)
30	}
31}
32
33impl<T, E: Display> LogErr<T, E> for Result<T, E> {
34	#[inline]
35	fn err_log(self, level: Level) -> Self {
36		self.inspect_err(|error| error::inspect_log_level(&error, level))
37	}
38}
tuwunel_core/utils/result/log_err.rs

tuwunel_core/utils/result/
log_err.rs
