From 09ab05b0dbdd5bffc33f3847a5a5d187e39d30b6 Mon Sep 17 00:00:00 2001
From: Rob Findley <rfindley@google.com>
Date: Thu, 13 May 2021 12:50:46 -0400
Subject: [PATCH] internal/lsp: exit graceful for modfiles in semantic tokens

Change-Id: I86e6dbdd6e51af9b947c34fd04489ed34687b3c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/319849
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
---
 internal/lsp/semantic.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/internal/lsp/semantic.go b/internal/lsp/semantic.go
index d8feea7b9c7..c6e9190aaa4 100644
--- a/internal/lsp/semantic.go
+++ b/internal/lsp/semantic.go
@@ -77,6 +77,9 @@ func (s *Server) computeSemanticTokens(ctx context.Context, td protocol.TextDocu
 		}
 		return template.SemanticTokens(ctx, snapshot, fh.URI(), add, data)
 	}
+	if fh.Kind() != source.Go {
+		return nil, nil
+	}
 	pkg, err := snapshot.PackageForFile(ctx, fh.URI(), source.TypecheckFull, source.WidestPackage)
 	if err != nil {
 		return nil, err