1 files changed, 0 insertions, 96 deletions
diff --git a/internal/lsp/template/highlight.go b/internal/lsp/template/highlight.go
deleted file mode 100644
index a45abaf50..000000000
--- a/internal/lsp/template/highlight.go
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright 2021 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package template
-
-import (
-	"context"
-	"fmt"
-	"regexp"
-
-	"golang.org/x/tools/internal/lsp/protocol"
-	"golang.org/x/tools/internal/lsp/source"
-)
-
-func Highlight(ctx context.Context, snapshot source.Snapshot, fh source.FileHandle, loc protocol.Position) ([]protocol.DocumentHighlight, error) {
-	buf, err := fh.Read()
-	if err != nil {
-		return nil, err
-	}
-	p := parseBuffer(buf)
-	pos := p.FromPosition(loc)
-	var ans []protocol.DocumentHighlight
-	if p.ParseErr == nil {
-		for _, s := range p.symbols {
-			if s.start <= pos && pos < s.start+s.length {
-				return markSymbols(p, s)
-			}
-		}
-	}
-	// these tokens exist whether or not there was a parse error
-	// (symbols require a successful parse)
-	for _, tok := range p.tokens {
-		if tok.Start <= pos && pos < tok.End {
-			wordAt := findWordAt(p, pos)
-			if len(wordAt) > 0 {
-				return markWordInToken(p, wordAt)
-			}
-		}
-	}
-	// find the 'word' at pos, etc: someday
-	// until then we get the default action, which doesn't respect word boundaries
-	return ans, nil
-}
-
-func markSymbols(p *Parsed, sym symbol) ([]protocol.DocumentHighlight, error) {
-	var ans []protocol.DocumentHighlight
-	for _, s := range p.symbols {
-		if s.name == sym.name {
-			kind := protocol.Read
-			if s.vardef {
-				kind = protocol.Write
-			}
-			ans = append(ans, protocol.DocumentHighlight{
-				Range: p.Range(s.start, s.length),
-				Kind:  kind,
-			})
-		}
-	}
-	return ans, nil
-}
-
-// A token is {{...}}, and this marks words in the token that equal the give word
-func markWordInToken(p *Parsed, wordAt string) ([]protocol.DocumentHighlight, error) {
-	var ans []protocol.DocumentHighlight
-	pat, err := regexp.Compile(fmt.Sprintf(`\b%s\b`, wordAt))
-	if err != nil {
-		return nil, fmt.Errorf("%q: unmatchable word (%v)", wordAt, err)
-	}
-	for _, tok := range p.tokens {
-		got := pat.FindAllIndex(p.buf[tok.Start:tok.End], -1)
-		for i := 0; i < len(got); i++ {
-			ans = append(ans, protocol.DocumentHighlight{
-				Range: p.Range(got[i][0], got[i][1]-got[i][0]),
-				Kind:  protocol.Text,
-			})
-		}
-	}
-	return ans, nil
-}
-
-var wordRe = regexp.MustCompile(`[$]?\w+$`)
-var moreRe = regexp.MustCompile(`^[$]?\w+`)
-
-// findWordAt finds the word the cursor is in (meaning in or just before)
-func findWordAt(p *Parsed, pos int) string {
-	if pos >= len(p.buf) {
-		return "" // can't happen, as we are called with pos < tok.End
-	}
-	after := moreRe.Find(p.buf[pos:])
-	if len(after) == 0 {
-		return "" // end of the word
-	}
-	got := wordRe.Find(p.buf[:pos+len(after)])
-	return string(got)
-}