From 4be2a86fce293c9c15ccab6348ebec272aa8c31d Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Sun, 19 Jun 2022 18:12:55 -0700
Subject: [PATCH] Delete unreachable cases from raw identifier check

"" is ruled out by the check for `if string.is_empty()` at the top.
"$crate" and "{{root}}" are ruled out because their first character does
not pass `is_ident_start`.
---
 src/fallback.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fallback.rs b/src/fallback.rs
index 570007cb..6b7837e8 100644
--- a/src/fallback.rs
+++ b/src/fallback.rs
@@ -701,7 +701,7 @@ fn validate_ident(string: &str, raw: bool) {
 
     if raw {
         match string {
-            "" | "_" | "super" | "self" | "Self" | "crate" | "$crate" | "{{root}}" => {
+            "_" | "super" | "self" | "Self" | "crate" => {
                 panic!("`{}` cannot be a raw identifier", string);
             }
             _ => {}