From 9eece0985b015b5ca3009d3945246db67d415b5b Mon Sep 17 00:00:00 2001
From: Alexandros Naskos <alex_naskos@hotmail.com>
Date: Fri, 26 Mar 2021 21:14:47 +0200
Subject: [PATCH] Fixed crash while typing error.

---
 src/semantic_tokens.zig | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/semantic_tokens.zig b/src/semantic_tokens.zig
index 9a896cc..e5b7b1d 100644
--- a/src/semantic_tokens.zig
+++ b/src/semantic_tokens.zig
@@ -523,7 +523,9 @@ fn writeNodeTokens(
             try gap_highlighter.end(lastToken(tree, node));
         },
         .error_value => {
-            try writeToken(builder, datas[node].lhs - 1, .keyword);
+            if (datas[node].lhs != 0) {
+                try writeToken(builder, datas[node].lhs - 1, .keyword);
+            }
             try writeToken(builder, datas[node].rhs, .errorTag);
         },
         .identifier => {