1 files changed, 6 insertions, 10 deletions

diff --git a/crates/mbe/src/lib.rs b/crates/mbe/src/lib.rs
index 7878faaa4..19543d777 100644
--- a/crates/mbe/src/lib.rs
+++ b/crates/mbe/src/lib.rs
@@ -24,7 +24,7 @@ use crate::{
 #[derive(Debug, PartialEq, Eq)]
 pub enum ParseError {
     Expected(String),
-    RepetitionEmtpyTokenTree,
+    RepetitionEmptyTokenTree,
 }
 
 #[derive(Debug, PartialEq, Eq, Clone)]
@@ -217,18 +217,14 @@ impl MacroRules {
 
 impl Rule {
     fn parse(src: &mut TtIter) -> Result<Rule, ParseError> {
-        let mut lhs = src
+        let lhs = src
             .expect_subtree()
-            .map_err(|()| ParseError::Expected("expected subtree".to_string()))?
-            .clone();
-        lhs.delimiter = None;
+            .map_err(|()| ParseError::Expected("expected subtree".to_string()))?;
         src.expect_char('=').map_err(|()| ParseError::Expected("expected `=`".to_string()))?;
         src.expect_char('>').map_err(|()| ParseError::Expected("expected `>`".to_string()))?;
-        let mut rhs = src
+        let rhs = src
             .expect_subtree()
-            .map_err(|()| ParseError::Expected("expected subtree".to_string()))?
-            .clone();
-        rhs.delimiter = None;
+            .map_err(|()| ParseError::Expected("expected subtree".to_string()))?;
 
         let lhs = MetaTemplate { tokens: parse_pattern(&lhs), delimiter: None };
         let rhs = MetaTemplate { tokens: parse_template(&rhs), delimiter: None };
@@ -274,7 +270,7 @@ fn validate(pattern: &MetaTemplate) -> Result<(), ParseError> {
                         }
                         false
                     }) {
-                        return Err(ParseError::RepetitionEmtpyTokenTree);
+                        return Err(ParseError::RepetitionEmptyTokenTree);
                     }
                 }
                 validate(subtree)?