From eabecafa8d4f99b5ea936fdd45f2fea662284e2c Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Tue, 12 Mar 2019 17:24:21 -0700
Subject: [PATCH] Highlight.highlight does not mutate

---
 highlight/src/c_lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/highlight/src/c_lib.rs b/highlight/src/c_lib.rs
index f6b01984..919da8c5 100644
--- a/highlight/src/c_lib.rs
+++ b/highlight/src/c_lib.rs
@@ -144,7 +144,7 @@ pub extern "C" fn ts_highlighter_highlight(
 
 impl TSHighlighter {
     fn highlight(
-        &mut self,
+        &self,
         source_code: &[u8],
         scope_name: &str,
         output: &mut TSHighlightBuffer,