add err log trait to Result

Signed-off-by: Jason Volk <jason@zemos.net>

src/core/error/log.rs

@@ -1,7 +1,8 @@
 use std::{convert::Infallible, fmt};
 
+use tracing::Level;
+
 use super::Error;
-use crate::{debug_error, error};
 
 #[inline]
 pub fn else_log<T, E>(error: E) -> Result<T, Infallible>
@@ -64,11 +65,33 @@ where
 }
 
 #[inline]
-pub fn inspect_log<E: fmt::Display>(error: &E) {
+pub fn inspect_log<E: fmt::Display>(error: &E) { inspect_log_level(error, Level::ERROR); }
-	error!("{error}");
+
+#[inline]
+pub fn inspect_debug_log<E: fmt::Debug>(error: &E) { inspect_debug_log_level(error, Level::ERROR); }
+
+#[inline]
+pub fn inspect_log_level<E: fmt::Display>(error: &E, level: Level) {
+	use crate::{debug, error, info, trace, warn};
+
+	match level {
+		Level::ERROR => error!("{error}"),
+		Level::WARN => warn!("{error}"),
+		Level::INFO => info!("{error}"),
+		Level::DEBUG => debug!("{error}"),
+		Level::TRACE => trace!("{error}"),
+	}
 }
 
 #[inline]
-pub fn inspect_debug_log<E: fmt::Debug>(error: &E) {
+pub fn inspect_debug_log_level<E: fmt::Debug>(error: &E, level: Level) {
-	debug_error!("{error:?}");
+	use crate::{debug, debug_error, debug_info, debug_warn, trace};
+
+	match level {
+		Level::ERROR => debug_error!("{error:?}"),
+		Level::WARN => debug_warn!("{error:?}"),
+		Level::INFO => debug_info!("{error:?}"),
+		Level::DEBUG => debug!("{error:?}"),
+		Level::TRACE => trace!("{error:?}"),
+	}
 }

src/core/result.rs

@@ -1,6 +1,8 @@
 mod debug_inspect;
+mod log_debug_err;
+mod log_err;
 mod map_expect;
 
-pub use self::{debug_inspect::DebugInspect, map_expect::MapExpect};
+pub use self::{debug_inspect::DebugInspect, log_debug_err::LogDebugErr, log_err::LogErr, map_expect::MapExpect};
 
 pub type Result<T = (), E = crate::Error> = std::result::Result<T, E>;

src/core/result/inspect_log.rs

@@ -0,0 +1,60 @@
+use std::fmt;
+
+use tracing::Level;
+
+use super::Result;
+use crate::error;
+
+pub trait ErrLog<T, E>
+where
+	E: fmt::Display,
+{
+	fn log_err(self, level: Level) -> Self;
+
+	fn err_log(self) -> Self
+	where
+		Self: Sized,
+	{
+		self.log_err(Level::ERROR)
+	}
+}
+
+pub trait ErrDebugLog<T, E>
+where
+	E: fmt::Debug,
+{
+	fn log_err_debug(self, level: Level) -> Self;
+
+	fn err_debug_log(self) -> Self
+	where
+		Self: Sized,
+	{
+		self.log_err_debug(Level::ERROR)
+	}
+}
+
+impl<T, E> ErrLog<T, E> for Result<T, E>
+where
+	E: fmt::Display,
+{
+	#[inline]
+	fn log_err(self, level: Level) -> Self
+	where
+		Self: Sized,
+	{
+		self.inspect_err(|error| error::inspect_log_level(&error, level))
+	}
+}
+
+impl<T, E> ErrDebugLog<T, E> for Result<T, E>
+where
+	E: fmt::Debug,
+{
+	#[inline]
+	fn log_err_debug(self, level: Level) -> Self
+	where
+		Self: Sized,
+	{
+		self.inspect_err(|error| error::inspect_debug_log_level(&error, level))
+	}
+}

src/core/result/log_debug_err.rs

@@ -0,0 +1,36 @@
+use std::fmt;
+
+use tracing::Level;
+
+use super::{DebugInspect, Result};
+use crate::error;
+
+pub trait LogDebugErr<T, E>
+where
+	E: fmt::Debug,
+{
+	#[must_use]
+	fn err_debug_log(self, level: Level) -> Self;
+
+	#[inline]
+	#[must_use]
+	fn log_debug_err(self) -> Self
+	where
+		Self: Sized,
+	{
+		self.err_debug_log(Level::ERROR)
+	}
+}
+
+impl<T, E> LogDebugErr<T, E> for Result<T, E>
+where
+	E: fmt::Debug,
+{
+	#[inline]
+	fn err_debug_log(self, level: Level) -> Self
+	where
+		Self: Sized,
+	{
+		self.debug_inspect_err(|error| error::inspect_debug_log_level(&error, level))
+	}
+}

src/core/result/log_err.rs

@@ -0,0 +1,36 @@
+use std::fmt;
+
+use tracing::Level;
+
+use super::Result;
+use crate::error;
+
+pub trait LogErr<T, E>
+where
+	E: fmt::Display,
+{
+	#[must_use]
+	fn err_log(self, level: Level) -> Self;
+
+	#[inline]
+	#[must_use]
+	fn log_err(self) -> Self
+	where
+		Self: Sized,
+	{
+		self.err_log(Level::ERROR)
+	}
+}
+
+impl<T, E> LogErr<T, E> for Result<T, E>
+where
+	E: fmt::Display,
+{
+	#[inline]
+	fn err_log(self, level: Level) -> Self
+	where
+		Self: Sized,
+	{
+		self.inspect_err(|error| error::inspect_log_level(&error, level))
+	}
+}