Apply a clippy suggestion.

1 files changed, 6 insertions, 2 deletions

diff --git a/src/rope.rs b/src/rope.rs
index e74dd4c..b5b5f36 100644
--- a/src/rope.rs
+++ b/src/rope.rs
@@ -49,6 +49,10 @@ impl Rope {
         }
     }
 
+    pub fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
     pub fn lines(&self) -> usize {
         match self {
             Rope(Node::Leaf(l)) => usize::from(l.lines),
@@ -194,10 +198,10 @@ impl Rope {
     }
 
     pub fn concat(&self, other: &Rope) -> Rope {
-        if self.len() == 0 {
+        if self.is_empty() {
             return other.clone();
         }
-        if other.len() == 0 {
+        if other.is_empty() {
             return self.clone();
         }
         match self.concat_height(self.height(), other, other.height()) {