fix: clippy::map_clone

https://rust-lang.github.io/rust-clippy/master/index.html#map_clone

Author: xtqqczze

crates/core/search.rs

@@ -389,15 +389,15 @@ fn search_path<M: Matcher, W: WriteColor>(
             searcher.search_path(&matcher, path, &mut sink)?;
             Ok(SearchResult {
                 has_match: sink.has_match(),
-                stats: sink.stats().map(|s| s.clone()),
+                stats: sink.stats().cloned(),
             })
         }
         Printer::Summary(ref mut p) => {
             let mut sink = p.sink_with_path(&matcher, path);
             searcher.search_path(&matcher, path, &mut sink)?;
             Ok(SearchResult {
                 has_match: sink.has_match(),
-                stats: sink.stats().map(|s| s.clone()),
+                stats: sink.stats().cloned(),
             })
         }
         Printer::JSON(ref mut p) => {
@@ -426,15 +426,15 @@ fn search_reader<M: Matcher, R: io::Read, W: WriteColor>(
             searcher.search_reader(&matcher, &mut rdr, &mut sink)?;
             Ok(SearchResult {
                 has_match: sink.has_match(),
-                stats: sink.stats().map(|s| s.clone()),
+                stats: sink.stats().cloned(),
             })
         }
         Printer::Summary(ref mut p) => {
             let mut sink = p.sink_with_path(&matcher, path);
             searcher.search_reader(&matcher, &mut rdr, &mut sink)?;
             Ok(SearchResult {
                 has_match: sink.has_match(),
-                stats: sink.stats().map(|s| s.clone()),
+                stats: sink.stats().cloned(),
             })
         }
         Printer::JSON(ref mut p) => {

crates/globset/src/glob.rs

@@ -1058,7 +1058,7 @@ impl<'a> Parser<'a> {
     }
 
     fn peek(&mut self) -> Option<char> {
-        self.chars.peek().map(|&ch| ch)
+        self.chars.peek().copied()
     }
 }
 

crates/matcher/tests/util.rs

@@ -54,7 +54,7 @@ impl Matcher for RegexMatcher {
     }
 
     fn capture_index(&self, name: &str) -> Option<usize> {
-        self.names.get(name).map(|i| *i)
+        self.names.get(name).copied()
     }
 
     // We purposely don't implement any other methods, so that we test the

crates/pcre2/src/matcher.rs

@@ -337,7 +337,7 @@ impl Matcher for RegexMatcher {
     }
 
     fn capture_index(&self, name: &str) -> Option<usize> {
-        self.names.get(name).map(|i| *i)
+        self.names.get(name).copied()
     }
 
     fn try_find_iter<F, E>(