Use Termination trait in main

Author: MitMaro

src/main.rs

@@ -63,7 +63,7 @@ mod util;
 mod version;
 mod view;
 
-use std::{env, ffi::OsString};
+use std::{env, ffi::OsString, process::Termination};
 
 use crate::{
 	arguments::{Args, Mode},
@@ -85,19 +85,12 @@ fn run(os_args: Vec<OsString>) -> Exit {
 	}
 }
 
-// TODO use the termination trait once rust-lang/rust#43301 is stable
-// allow_attributes added due to a problem on clippy::exit
-#[allow(
-	clippy::allow_attributes,
-	clippy::exit,
-	clippy::print_stderr,
-	reason = "While not allowed in other locations, these are needed here"
-)]
+#[expect(clippy::print_stderr, reason = "Required to print error message.")]
 #[cfg(not(tarpaulin_include))]
-fn main() {
+fn main() -> impl Termination {
 	let exit = run(env::args_os().skip(1).collect());
 	if let Some(message) = exit.get_message() {
 		eprintln!("{message}");
 	}
-	std::process::exit(exit.get_status().to_code());
+	*exit.get_status()
 }

src/module/exit_status.rs

@@ -1,3 +1,5 @@
+use std::process::{ExitCode, Termination};
+
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub(crate) enum ExitStatus {
 	None,
@@ -11,7 +13,7 @@ pub(crate) enum ExitStatus {
 }
 
 impl ExitStatus {
-	pub(crate) const fn to_code(self) -> i32 {
+	pub(crate) const fn to_code(self) -> u8 {
 		match self {
 			Self::Abort => 5,
 			Self::ConfigError => 1,
@@ -24,6 +26,12 @@ impl ExitStatus {
 	}
 }
 
+impl Termination for ExitStatus {
+	fn report(self) -> ExitCode {
+		ExitCode::from(self.to_code())
+	}
+}
+
 #[cfg(test)]
 mod tests {
 	use rstest::rstest;
@@ -39,7 +47,12 @@ mod tests {
 	#[case::good(ExitStatus::Good, 0)]
 	#[case::state_error(ExitStatus::StateError, 4)]
 	#[case::kill(ExitStatus::Kill, 6)]
-	fn to_code(#[case] input: ExitStatus, #[case] expected: i32) {
+	fn to_code(#[case] input: ExitStatus, #[case] expected: u8) {
 		assert_eq!(ExitStatus::to_code(input), expected);
 	}
+
+	#[test]
+	fn termination() {
+		assert_eq!(ExitStatus::ConfigError.report(), ExitCode::from(1));
+	}
 }