.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/internal/lsp/folding_range.go

   1 package lsp
   2
   3 import (
   4         "context"
   5
   6         "golang.org/x/tools/internal/lsp/protocol"
   7         "golang.org/x/tools/internal/lsp/source"
   8 )
   9
  10 func (s *Server) foldingRange(ctx context.Context, params *protocol.FoldingRangeParams) ([]protocol.FoldingRange, error) {
  11         snapshot, fh, ok, release, err := s.beginFileRequest(ctx, params.TextDocument.URI, source.Go)
  12         defer release()
  13         if !ok {
  14                 return nil, err
  15         }
  16
  17         ranges, err := source.FoldingRange(ctx, snapshot, fh, snapshot.View().Options().LineFoldingOnly)
  18         if err != nil {
  19                 return nil, err
  20         }
  21         return toProtocolFoldingRanges(ranges)
  22 }
  23
  24 func toProtocolFoldingRanges(ranges []*source.FoldingRangeInfo) ([]protocol.FoldingRange, error) {
  25         result := make([]protocol.FoldingRange, 0, len(ranges))
  26         for _, info := range ranges {
  27                 rng, err := info.Range()
  28                 if err != nil {
  29                         return nil, err
  30                 }
  31                 result = append(result, protocol.FoldingRange{
  32                         StartLine:      rng.Start.Line,
  33                         StartCharacter: rng.Start.Character,
  34                         EndLine:        rng.End.Line,
  35                         EndCharacter:   rng.End.Character,
  36                         Kind:           string(info.Kind),
  37                 })
  38         }
  39         return result, nil
  40 }