From fd83954d66411d0ecc0cdac9e78923c01749eb0f Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote <n.nethercote@gmail.com>
Date: Wed, 11 Dec 2024 15:21:54 +1100
Subject: [PATCH] Factor out repeated code from `eat_dollar`.

---
 compiler/rustc_expand/src/mbe/metavar_expr.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/compiler/rustc_expand/src/mbe/metavar_expr.rs b/compiler/rustc_expand/src/mbe/metavar_expr.rs
index cc1ae4b6f6c..b4453c3cd26 100644
--- a/compiler/rustc_expand/src/mbe/metavar_expr.rs
+++ b/compiler/rustc_expand/src/mbe/metavar_expr.rs
@@ -275,8 +275,7 @@ fn eat_dollar<'psess>(
     psess: &'psess ParseSess,
     span: Span,
 ) -> PResult<'psess, ()> {
-    if let Some(TokenTree::Token(Token { kind: token::Dollar, .. }, _)) = iter.peek() {
-        let _ = iter.next();
+    if try_eat_dollar(iter) {
         return Ok(());
     }
     Err(psess.dcx().struct_span_err(