From a533e4d7bb77291650dde293d6abbc4fea886d67 Mon Sep 17 00:00:00 2001
From: Paul Gey <narpfel@gmx.de>
Date: Sat, 14 Aug 2021 15:01:16 +0200
Subject: [PATCH] Remove unnecessary borrows

This produces an `unused_must_use` warning on nightly:
https://github.com/rust-lang/rust/pull/86426
---
 cli/src/generate/build_tables/build_lex_table.rs      | 2 +-
 cli/src/generate/build_tables/minimize_parse_table.rs | 2 +-
 highlight/src/lib.rs                                  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/cli/src/generate/build_tables/build_lex_table.rs b/cli/src/generate/build_tables/build_lex_table.rs
index b365feb1..d3ebb241 100644
--- a/cli/src/generate/build_tables/build_lex_table.rs
+++ b/cli/src/generate/build_tables/build_lex_table.rs
@@ -347,7 +347,7 @@ fn lex_states_differ(
 fn sort_states(table: &mut LexTable, parse_table: &mut ParseTable) {
     // Get a mapping of old state index -> new_state_index
     let mut old_ids_by_new_id = (0..table.states.len()).collect::<Vec<_>>();
-    &old_ids_by_new_id[1..].sort_by_key(|id| &table.states[*id]);
+    old_ids_by_new_id[1..].sort_by_key(|id| &table.states[*id]);
 
     // Get the inverse mapping
     let mut new_ids_by_old_id = vec![0; old_ids_by_new_id.len()];
diff --git a/cli/src/generate/build_tables/minimize_parse_table.rs b/cli/src/generate/build_tables/minimize_parse_table.rs
index 4c2224c4..d10bea56 100644
--- a/cli/src/generate/build_tables/minimize_parse_table.rs
+++ b/cli/src/generate/build_tables/minimize_parse_table.rs
@@ -479,7 +479,7 @@ impl<'a> Minimizer<'a> {
     fn reorder_states_by_descending_size(&mut self) {
         // Get a mapping of old state index -> new_state_index
         let mut old_ids_by_new_id = (0..self.parse_table.states.len()).collect::<Vec<_>>();
-        &old_ids_by_new_id.sort_unstable_by_key(|i| {
+        old_ids_by_new_id.sort_unstable_by_key(|i| {
             // Don't changes states 0 (the error state) or 1 (the start state).
             if *i <= 1 {
                 return *i as i64 - 1_000_000;
diff --git a/highlight/src/lib.rs b/highlight/src/lib.rs
index b7bfeba8..58d7e88c 100644
--- a/highlight/src/lib.rs
+++ b/highlight/src/lib.rs
@@ -586,7 +586,7 @@ where
                     break;
                 }
                 if i > 0 {
-                    &self.layers[0..(i + 1)].rotate_left(1);
+                    self.layers[0..(i + 1)].rotate_left(1);
                 }
                 break;
             } else {