Remove redundant &

Author: sinkuu

src/comment.rs

@@ -591,7 +591,7 @@ impl<'a> CommentRewrite<'a> {
             ) {
                 Some(s) => self.result.push_str(&Self::join_block(
                     &s,
-                    &format!("{}{}", &self.comment_line_separator, ib.line_start),
+                    &format!("{}{}", self.comment_line_separator, ib.line_start),
                 )),
                 None => self.result.push_str(&Self::join_block(
                     &ib.original_block_as_string(),
@@ -634,7 +634,7 @@ impl<'a> CommentRewrite<'a> {
             ) {
                 Some(s) => self.result.push_str(&Self::join_block(
                     &s,
-                    &format!("{}{}", &self.comment_line_separator, ib.line_start),
+                    &format!("{}{}", self.comment_line_separator, ib.line_start),
                 )),
                 None => self.result.push_str(&Self::join_block(
                     &ib.original_block_as_string(),

src/expr.rs

@@ -1459,7 +1459,7 @@ fn rewrite_paren(
     let subexpr_str = subexpr.rewrite(context, sub_shape)?;
     let fits_single_line = !pre_comment.contains("//") && !post_comment.contains("//");
     if fits_single_line {
-        Some(format!("({}{}{})", pre_comment, &subexpr_str, post_comment))
+        Some(format!("({}{}{})", pre_comment, subexpr_str, post_comment))
     } else {
         rewrite_paren_in_multi_line(context, subexpr, shape, pre_span, post_span)
     }

src/items.rs

@@ -730,7 +730,7 @@ pub fn format_impl(
                 if generics.where_clause.predicates.len() == 1 {
                     result.push_str(",");
                 }
-                result.push_str(&format!("{}{{{}}}", &sep, &sep));
+                result.push_str(&format!("{}{{{}}}", sep, sep));
             } else {
                 result.push_str(" {}");
             }
@@ -912,7 +912,7 @@ fn rewrite_trait_ref(
     let shape = Shape::indented(offset + used_space, context.config);
     if let Some(trait_ref_str) = trait_ref.rewrite(context, shape) {
         if !trait_ref_str.contains('\n') {
-            return Some(format!(" {}{}", polarity_str, &trait_ref_str));
+            return Some(format!(" {}{}", polarity_str, trait_ref_str));
         }
     }
     // We could not make enough space for trait_ref, so put it on new line.
@@ -921,9 +921,9 @@ fn rewrite_trait_ref(
     let trait_ref_str = trait_ref.rewrite(context, shape)?;
     Some(format!(
         "{}{}{}",
-        &offset.to_string_with_newline(context.config),
+        offset.to_string_with_newline(context.config),
         polarity_str,
-        &trait_ref_str
+        trait_ref_str
     ))
 }
 

src/test/mod.rs

@@ -609,11 +609,11 @@ fn handle_result(
     for (file_name, fmt_text) in result {
         // If file is in tests/source, compare to file with same name in tests/target.
         let target = get_target(&file_name, target);
-        let open_error = format!("couldn't open target {:?}", &target);
+        let open_error = format!("couldn't open target {:?}", target);
         let mut f = fs::File::open(&target).expect(&open_error);
 
         let mut text = String::new();
-        let read_error = format!("failed reading target {:?}", &target);
+        let read_error = format!("failed reading target {:?}", target);
         f.read_to_string(&mut text).expect(&read_error);
 
         // Ignore LF and CRLF difference for Windows.