Update state.rs

Author: chris-ha458

regex-automata/src/util/determinize/state.rs

@@ -115,7 +115,7 @@ pub(crate) struct State(Arc<[u8]>);
 /// without having to convert it into a State first.
 impl core::borrow::Borrow<[u8]> for State {
     fn borrow(&self) -> &[u8] {
-        &*self.0
+        &self.0
     }
 }
 
@@ -177,7 +177,7 @@ impl State {
     }
 
     fn repr(&self) -> Repr<'_> {
-        Repr(&*self.0)
+        Repr(&self.0)
     }
 }
 
@@ -460,12 +460,10 @@ impl<'a> Repr<'a> {
     ///
     /// If this state is not a match state, then this always returns 0.
     fn match_len(&self) -> usize {
-        if !self.is_match() {
-            return 0;
-        } else if !self.has_pattern_ids() {
-            1
-        } else {
-            self.encoded_pattern_len()
+        match (self.is_match(), self.has_pattern_ids()) {
+            (false, _) => 0,
+            (true, false) => 1,
+            (true, true) => self.encoded_pattern_len(),
         }
     }