1 // Copyright 2019 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
10 "golang.org/x/tools/internal/lsp/protocol"
11 "golang.org/x/tools/internal/lsp/source"
14 func (s *Server) foldingRange(ctx context.Context, params *protocol.FoldingRangeParams) ([]protocol.FoldingRange, error) {
15 snapshot, fh, ok, release, err := s.beginFileRequest(ctx, params.TextDocument.URI, source.Go)
21 ranges, err := source.FoldingRange(ctx, snapshot, fh, snapshot.View().Options().LineFoldingOnly)
25 return toProtocolFoldingRanges(ranges)
28 func toProtocolFoldingRanges(ranges []*source.FoldingRangeInfo) ([]protocol.FoldingRange, error) {
29 result := make([]protocol.FoldingRange, 0, len(ranges))
30 for _, info := range ranges {
31 rng, err := info.Range()
35 result = append(result, protocol.FoldingRange{
36 StartLine: rng.Start.Line,
37 StartCharacter: rng.Start.Character,
38 EndLine: rng.End.Line,
39 EndCharacter: rng.End.Character,
40 Kind: string(info.Kind),