.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/lsp/symbols.go

   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.
   4
   5 package lsp
   6
   7 import (
   8         "context"
   9
  10         "golang.org/x/tools/internal/event"
  11         "golang.org/x/tools/internal/lsp/debug/tag"
  12         "golang.org/x/tools/internal/lsp/protocol"
  13         "golang.org/x/tools/internal/lsp/source"
  14 )
  15
  16 func (s *Server) documentSymbol(ctx context.Context, params *protocol.DocumentSymbolParams) ([]interface{}, error) {
  17         ctx, done := event.Start(ctx, "lsp.Server.documentSymbol")
  18         defer done()
  19
  20         snapshot, fh, ok, release, err := s.beginFileRequest(ctx, params.TextDocument.URI, source.Go)
  21         defer release()
  22         if !ok {
  23                 return []interface{}{}, err
  24         }
  25         docSymbols, err := source.DocumentSymbols(ctx, snapshot, fh)
  26         if err != nil {
  27                 event.Error(ctx, "DocumentSymbols failed", err, tag.URI.Of(fh.URI()))
  28                 return []interface{}{}, nil
  29         }
  30         // Convert the symbols to an interface array.
  31         // TODO: Remove this once the lsp deprecates SymbolInformation.
  32         symbols := make([]interface{}, len(docSymbols))
  33         for i, s := range docSymbols {
  34                 if snapshot.View().Options().HierarchicalDocumentSymbolSupport {
  35                         symbols[i] = s
  36                         continue
  37                 }
  38                 // If the client does not support hierarchical document symbols, then
  39                 // we need to be backwards compatible for now and return SymbolInformation.
  40                 symbols[i] = protocol.SymbolInformation{
  41                         Name:       s.Name,
  42                         Kind:       s.Kind,
  43                         Deprecated: s.Deprecated,
  44                         Location: protocol.Location{
  45                                 URI:   params.TextDocument.URI,
  46                                 Range: s.Range,
  47                         },
  48                 }
  49         }
  50         return symbols, nil
  51 }