1 files changed, 14 insertions, 15 deletions

diff --git a/src/makefile/input.rs b/src/makefile/input.rs
index 318493b..ed1140e 100644
--- a/src/makefile/input.rs
+++ b/src/makefile/input.rs
@@ -96,9 +96,11 @@ fn inference_match<'a>(
     prerequisites: &[String],
 ) -> Option<InferenceMatch<'a>> {
     lazy_static! {
-        static ref INFERENCE_RULE: Regex =
-            Regex::new(r"^(?P<s2>(\.[^/.]+)?)(?P<s1>\.[^/.]+)$").unwrap();
-        static ref SPECIAL_TARGET: Regex = Regex::new(r"^\.[A-Z]+$").unwrap();
+        static ref INFERENCE_RULE: Regex = #[allow(clippy::unwrap_used)]
+            Regex::new(r"^(?P<s2>(\.[^/.]+)?)(?P<s1>\.[^/.]+)$")
+            .unwrap();
+        static ref SPECIAL_TARGET: Regex = #[allow(clippy::unwrap_used)]
+            Regex::new(r"^\.[A-Z]+$").unwrap();
     }
 
     let inference_match = INFERENCE_RULE.captures(targets[0]);
@@ -109,6 +111,7 @@ fn inference_match<'a>(
         && inference_match.is_some()
         && special_target_match.is_none();
     if inference_rule {
+        #[allow(clippy::unwrap_used)]
         inference_match.map(|x| InferenceMatch {
             s1: x.name("s1").unwrap().as_str(),
             s2: x.name("s2").unwrap().as_str(),
@@ -128,7 +131,7 @@ where
     E: StdError + Send + Sync + 'static,
     Inner: Iterator<Item = Result<T, E>>,
 {
-    fn new(inner: Inner) -> Self {
+    const fn new(inner: Inner) -> Self {
         Self(inner, 0)
     }
 }
@@ -302,7 +305,7 @@ impl<'a, 'parent, R: BufRead> MakefileReader<'a, 'parent, R> {
             let line_type = LineType::of(&line_tokens);
 
             // before we actually test it, see if it's only visible after expanding macros
-            let (line_tokens, line_type) = if let LineType::Unknown = line_type {
+            let (line_tokens, line_type) = if matches!(line_type, LineType::Unknown) {
                 let line_tokens = TokenString::text(
                     self.expand_macros(&line_tokens)
                         .wrap_err_with(|| format!("while parsing line {}", line_number))?
@@ -365,8 +368,7 @@ impl<'a, 'parent, R: BufRead> MakefileReader<'a, 'parent, R> {
                     } else {
                         let exported = if line_tokens.contains_text("=") {
                             // that's an assignment!
-                            let new_macro = self.read_macro(line_tokens, line_number)?;
-                            new_macro
+                            self.read_macro(line_tokens, line_number)?
                         } else {
                             self.expand_macros(&line_tokens)?
                         };
@@ -401,7 +403,8 @@ impl<'a, 'parent, R: BufRead> MakefileReader<'a, 'parent, R> {
 
     fn next_line(&mut self, settings: NextLineSettings) -> Option<(usize, Result<String>)> {
         lazy_static! {
-            static ref COMMENT: Regex = Regex::new(r"(^|[^\\])#.*$").unwrap();
+            static ref COMMENT: Regex = #[allow(clippy::unwrap_used)]
+            Regex::new(r"(^|[^\\])#.*$").unwrap();
         }
         let escaped_newline_replacement = settings.escaped_newline_replacement;
         if let Some((line_number, line)) = self.pending_line.take() {
@@ -522,17 +525,13 @@ impl<'a, 'parent, R: BufRead> MakefileReader<'a, 'parent, R> {
     }
 
     fn special_target_has_prereq(&self, target: &str, name: &str, empty_counts: bool) -> bool {
-        match self
-            .targets
+        self.targets
             .get(target)
             .or_else(|| self.built_in_targets.get(target))
-        {
-            Some(target) => {
+            .map_or(false, |target| {
                 (empty_counts && target.prerequisites.is_empty())
                     || target.prerequisites.iter().any(|e| e == name)
-            }
-            None => false,
-        }
+            })
     }
 
     fn read_include(&mut self, mut line_tokens: TokenString, line_number: usize) -> Result<()> {