| // Copyright 2018 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" |
| "sort" |
| |
| "golang.org/x/tools/internal/lsp/cache" |
| "golang.org/x/tools/internal/lsp/protocol" |
| "golang.org/x/tools/internal/lsp/source" |
| ) |
| |
| func (s *server) CacheAndDiagnose(ctx context.Context, uri protocol.DocumentURI, text string) { |
| f := s.view.GetFile(source.URI(uri)) |
| f.SetContent([]byte(text)) |
| |
| go func() { |
| reports, err := source.Diagnostics(ctx, f) |
| if err != nil { |
| return // handle error? |
| } |
| for filename, diagnostics := range reports { |
| s.client.PublishDiagnostics(ctx, &protocol.PublishDiagnosticsParams{ |
| URI: protocol.DocumentURI(source.ToURI(filename)), |
| Diagnostics: toProtocolDiagnostics(s.view, diagnostics), |
| }) |
| } |
| }() |
| } |
| |
| func toProtocolDiagnostics(v *cache.View, diagnostics []source.Diagnostic) []protocol.Diagnostic { |
| reports := []protocol.Diagnostic{} |
| for _, diag := range diagnostics { |
| f := v.GetFile(source.ToURI(diag.Filename)) |
| tok, err := f.GetToken() |
| if err != nil { |
| continue // handle error? |
| } |
| pos := fromTokenPosition(tok, diag.Position) |
| if !pos.IsValid() { |
| continue // handle error? |
| } |
| reports = append(reports, protocol.Diagnostic{ |
| Message: diag.Message, |
| Range: toProtocolRange(tok, source.Range{ |
| Start: pos, |
| End: pos, |
| }), |
| Severity: protocol.SeverityError, // all diagnostics have error severity for now |
| Source: "LSP", |
| }) |
| } |
| return reports |
| } |
| |
| func sorted(d []protocol.Diagnostic) { |
| sort.Slice(d, func(i int, j int) bool { |
| if d[i].Range.Start.Line == d[j].Range.Start.Line { |
| if d[i].Range.Start.Character == d[j].Range.End.Character { |
| return d[i].Message < d[j].Message |
| } |
| return d[i].Range.Start.Character < d[j].Range.End.Character |
| } |
| return d[i].Range.Start.Line < d[j].Range.Start.Line |
| }) |
| } |