blob: 59874f51bb08858bc7c2d6fa9095fca9b18002d4 [file] [log] [blame]
// Copyright 2019 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 lsp
import (
"context"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/lsp/telemetry"
"golang.org/x/tools/internal/span"
"golang.org/x/tools/internal/telemetry/log"
)
func (s *Server) documentHighlight(ctx context.Context, params *protocol.DocumentHighlightParams) ([]protocol.DocumentHighlight, error) {
uri := span.NewURI(params.TextDocument.URI)
view, err := s.session.ViewOf(uri)
if err != nil {
return nil, err
}
snapshot := view.Snapshot()
f, err := view.GetFile(ctx, uri)
if err != nil {
return nil, err
}
var rngs []protocol.Range
switch f.Kind() {
case source.Go:
rngs, err = source.Highlight(ctx, snapshot, f, params.Position)
case source.Mod:
return nil, nil
}
if err != nil {
log.Error(ctx, "no highlight", err, telemetry.URI.Of(uri))
}
return toProtocolHighlight(rngs), nil
}
func toProtocolHighlight(rngs []protocol.Range) []protocol.DocumentHighlight {
result := make([]protocol.DocumentHighlight, 0, len(rngs))
kind := protocol.Text
for _, rng := range rngs {
result = append(result, protocol.DocumentHighlight{
Kind: kind,
Range: rng,
})
}
return result
}