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go/internal/lsp/diagnostics.go
Rebecca Stambler 9c4a82ab32 internal/lsp: remove duplicated enums
source.DiagnosticSeverity and source.CompletionItemKind are duplicated
and not worth maintaining.

Change-Id: I8d6c8621a227855309c0977da59d8c9fa53617bf
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197177
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-25 15:30:23 +00:00

97 lines
2.8 KiB
Go

// 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"
"strings"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/lsp/telemetry"
"golang.org/x/tools/internal/span"
"golang.org/x/tools/internal/telemetry/log"
"golang.org/x/tools/internal/telemetry/trace"
errors "golang.org/x/xerrors"
)
func (s *Server) diagnostics(view source.View, uri span.URI) error {
ctx := view.BackgroundContext()
ctx, done := trace.StartSpan(ctx, "lsp:background-worker")
defer done()
ctx = telemetry.File.With(ctx, uri)
f, err := view.GetFile(ctx, uri)
if err != nil {
return err
}
// For non-Go files, don't return any diagnostics.
gof, ok := f.(source.GoFile)
if !ok {
return errors.Errorf("%s is not a Go file", f.URI())
}
reports, warningMsg, err := source.Diagnostics(ctx, view, gof, view.Options().DisabledAnalyses)
if err != nil {
return err
}
if warningMsg != "" {
s.client.ShowMessage(ctx, &protocol.ShowMessageParams{
Type: protocol.Info,
Message: warningMsg,
})
}
s.undeliveredMu.Lock()
defer s.undeliveredMu.Unlock()
for uri, diagnostics := range reports {
if err := s.publishDiagnostics(ctx, uri, diagnostics); err != nil {
if s.undelivered == nil {
s.undelivered = make(map[span.URI][]source.Diagnostic)
}
s.undelivered[uri] = diagnostics
log.Error(ctx, "failed to deliver diagnostic (will retry)", err, telemetry.File)
continue
}
// In case we had old, undelivered diagnostics.
delete(s.undelivered, uri)
}
// Anytime we compute diagnostics, make sure to also send along any
// undelivered ones (only for remaining URIs).
for uri, diagnostics := range s.undelivered {
if err := s.publishDiagnostics(ctx, uri, diagnostics); err != nil {
log.Error(ctx, "failed to deliver diagnostic for (will not retry)", err, telemetry.File)
}
// If we fail to deliver the same diagnostics twice, just give up.
delete(s.undelivered, uri)
}
return nil
}
func (s *Server) publishDiagnostics(ctx context.Context, uri span.URI, diagnostics []source.Diagnostic) error {
s.client.PublishDiagnostics(ctx, &protocol.PublishDiagnosticsParams{
Diagnostics: toProtocolDiagnostics(ctx, diagnostics),
URI: protocol.NewURI(uri),
})
return nil
}
func toProtocolDiagnostics(ctx context.Context, diagnostics []source.Diagnostic) []protocol.Diagnostic {
reports := []protocol.Diagnostic{}
for _, diag := range diagnostics {
reports = append(reports, protocol.Diagnostic{
Message: strings.TrimSpace(diag.Message), // go list returns errors prefixed by newline
Range: diag.Range,
Severity: diag.Severity,
Source: diag.Source,
Tags: diag.Tags,
})
}
return reports
}