From 962260a67897f4f8b2bb2ed42969dc83f7262eb0 Mon Sep 17 00:00:00 2001
From: Robert Findley <rfindley@google.com>
Date: Tue, 1 Feb 2022 11:59:45 -0500
Subject: [PATCH] internal/lsp/source: remove the unused source.DetectLanguage

Change-Id: If146b609f7dbf019cb11b27c73d685bcaf5a5075
Reviewed-on: https://go-review.googlesource.com/c/tools/+/382236
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
Reviewed-by: Peter Weinberger <pjw@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
---
 internal/lsp/source/util.go | 19 -------------------
 1 file changed, 19 deletions(-)

diff --git a/internal/lsp/source/util.go b/internal/lsp/source/util.go
index 443bda8eec..56974f22d1 100644
--- a/internal/lsp/source/util.go
+++ b/internal/lsp/source/util.go
@@ -178,25 +178,6 @@ func FileKindForLang(langID string) FileKind {
 	}
 }
 
-func DetectLanguage(langID, filename string) FileKind {
-	// use the langID if the client sent it
-	if kind := FileKindForLang(langID); kind != UnknownKind {
-		return kind
-	}
-	// Detect the language based on the file extension.
-	switch ext := filepath.Ext(filename); ext {
-	case ".mod":
-		return Mod
-	case ".sum":
-		return Sum
-	case ".go":
-		return Go
-	default:
-		// (for instance, before go1.15 cgo files had no extension)
-		return Go
-	}
-}
-
 func (k FileKind) String() string {
 	switch k {
 	case Go: