From 16c3d4332fac56b275ca3c66dcf12573738bdc91 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Oscar=20Nihlg=C3=A5rd?= <oscarnihlgard@gmail.com>
Date: Mon, 22 Oct 2018 17:24:14 +0200
Subject: [PATCH] Fix infinite loop with `nim check` (#9448)

---
 compiler/lexer.nim | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compiler/lexer.nim b/compiler/lexer.nim
index f1b51af328..8762bac495 100644
--- a/compiler/lexer.nim
+++ b/compiler/lexer.nim
@@ -636,6 +636,8 @@ proc handleHexChar(L: var TLexer, xi: var int) =
   else:
     lexMessage(L, errGenerated,
       "expected a hex digit, but found: " & L.buf[L.bufpos])
+    # Need to progress for `nim check`
+    inc(L.bufpos)
 
 proc handleDecChars(L: var TLexer, xi: var int) =
   while L.buf[L.bufpos] in {'0'..'9'}: