Merge pull request #188 from deeprobin/improvements

General code improvements

Author: Manishearth

src/lib.rs

@@ -5,7 +5,6 @@ extern crate log;
 #[cfg(test)]
 #[macro_use]
 extern crate proptest;
-use serde_json;
 
 use std::collections::HashSet;
 use std::ops::Range;

src/replace.rs

@@ -14,11 +14,7 @@ enum State {
 
 impl State {
     fn is_inserted(&self) -> bool {
-        if let State::Inserted(..) = *self {
-            true
-        } else {
-            false
-        }
+        matches!(*self, State::Inserted(..))
     }
 }