.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/lsp/mod/diagnostics.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 mod provides core features related to go.mod file
   6 // handling for use by Go editors and tools.
   7 package mod
   8
   9 import (
  10         "context"
  11
  12         "golang.org/x/tools/internal/event"
  13         "golang.org/x/tools/internal/lsp/debug/tag"
  14         "golang.org/x/tools/internal/lsp/protocol"
  15         "golang.org/x/tools/internal/lsp/source"
  16 )
  17
  18 func Diagnostics(ctx context.Context, snapshot source.Snapshot) (map[source.VersionedFileIdentity][]*source.Diagnostic, error) {
  19         ctx, done := event.Start(ctx, "mod.Diagnostics", tag.Snapshot.Of(snapshot.ID()))
  20         defer done()
  21
  22         reports := map[source.VersionedFileIdentity][]*source.Diagnostic{}
  23         for _, uri := range snapshot.ModFiles() {
  24                 fh, err := snapshot.GetVersionedFile(ctx, uri)
  25                 if err != nil {
  26                         return nil, err
  27                 }
  28                 reports[fh.VersionedFileIdentity()] = []*source.Diagnostic{}
  29                 tidied, err := snapshot.ModTidy(ctx, fh)
  30                 if err == source.ErrTmpModfileUnsupported {
  31                         return nil, nil
  32                 }
  33                 if err != nil {
  34                         return nil, err
  35                 }
  36                 for _, e := range tidied.Errors {
  37                         diag := &source.Diagnostic{
  38                                 Message: e.Message,
  39                                 Range:   e.Range,
  40                                 Source:  e.Category,
  41                         }
  42                         if e.Category == "syntax" {
  43                                 diag.Severity = protocol.SeverityError
  44                         } else {
  45                                 diag.Severity = protocol.SeverityWarning
  46                         }
  47                         fh, err := snapshot.GetVersionedFile(ctx, e.URI)
  48                         if err != nil {
  49                                 return nil, err
  50                         }
  51                         reports[fh.VersionedFileIdentity()] = append(reports[fh.VersionedFileIdentity()], diag)
  52                 }
  53         }
  54         return reports, nil
  55 }