From 3239bf3989641109e03dc58656f2ca780bb6ae8e Mon Sep 17 00:00:00 2001
From: Daniel Eades <danieleades@hotmail.com>
Date: Mon, 2 May 2022 21:45:14 +0100
Subject: [PATCH] use byte literals

---
 polonius-parser/src/lexer.rs | 32 +++++++++++++++-----------------
 1 file changed, 15 insertions(+), 17 deletions(-)

diff --git a/polonius-parser/src/lexer.rs b/polonius-parser/src/lexer.rs
index a3c23473ad..34dd9182f4 100644
--- a/polonius-parser/src/lexer.rs
+++ b/polonius-parser/src/lexer.rs
@@ -81,49 +81,47 @@ impl<'input> Lexer<'input> {
                 T![comment],
             ),
             // relation keywords
-            kw if kw.starts_with("use_of_var_derefs_origin".as_bytes()) => (
+            kw if kw.starts_with(b"use_of_var_derefs_origin") => (
                 "use_of_var_derefs_origin".len() as u32,
                 T![use_of_var_derefs_origin],
             ),
-            kw if kw.starts_with("drop_of_var_derefs_origin".as_bytes()) => (
+            kw if kw.starts_with(b"drop_of_var_derefs_origin") => (
                 "drop_of_var_derefs_origin".len() as u32,
                 T![drop_of_var_derefs_origin],
             ),
-            kw if kw.starts_with("placeholders".as_bytes()) => {
+            kw if kw.starts_with(b"placeholders") => {
                 ("placeholders".len() as u32, T![placeholders])
             }
-            kw if kw.starts_with("known_subsets".as_bytes()) => {
+            kw if kw.starts_with(b"known_subsets") => {
                 ("known_subsets".len() as u32, T![known subsets])
             }
             // CFG keywords
-            kw if kw.starts_with("block".as_bytes()) => ("block".len() as u32, T![block]),
-            kw if kw.starts_with("goto".as_bytes()) => ("goto".len() as u32, T![goto]),
+            kw if kw.starts_with(b"block") => ("block".len() as u32, T![block]),
+            kw if kw.starts_with(b"goto") => ("goto".len() as u32, T![goto]),
             // effect keywords - facts
-            kw if kw.starts_with("outlives".as_bytes()) => ("outlives".len() as u32, T![outlives]),
-            kw if kw.starts_with("loan_issued_at".as_bytes()) => {
+            kw if kw.starts_with(b"outlives") => ("outlives".len() as u32, T![outlives]),
+            kw if kw.starts_with(b"loan_issued_at") => {
                 ("loan_issued_at".len() as u32, T![loan_issued_at])
             }
-            kw if kw.starts_with("loan_invalidated_at".as_bytes()) => {
+            kw if kw.starts_with(b"loan_invalidated_at") => {
                 ("loan_invalidated_at".len() as u32, T![loan_invalidated_at])
             }
-            kw if kw.starts_with("loan_killed_at".as_bytes()) => {
+            kw if kw.starts_with(b"loan_killed_at") => {
                 ("loan_killed_at".len() as u32, T![loan_killed_at])
             }
-            kw if kw.starts_with("var_used_at".as_bytes()) => {
-                ("var_used_at".len() as u32, T![var_used_at])
-            }
-            kw if kw.starts_with("var_defined_at".as_bytes()) => {
+            kw if kw.starts_with(b"var_used_at") => ("var_used_at".len() as u32, T![var_used_at]),
+            kw if kw.starts_with(b"var_defined_at") => {
                 ("var_defined_at".len() as u32, T![var_defined_at])
             }
-            kw if kw.starts_with("origin_live_on_entry".as_bytes()) => (
+            kw if kw.starts_with(b"origin_live_on_entry") => (
                 "origin_live_on_entry".len() as u32,
                 T![origin_live_on_entry],
             ),
-            kw if kw.starts_with("var_dropped_at".as_bytes()) => {
+            kw if kw.starts_with(b"var_dropped_at") => {
                 ("var_dropped_at".len() as u32, T![var_dropped_at])
             }
             // effect keywords - use
-            kw if kw.starts_with("use".as_bytes()) => ("use".len() as u32, T![use]),
+            kw if kw.starts_with(b"use") => ("use".len() as u32, T![use]),
             _ => return None,
         };