mirror of
https://github.com/golang/go
synced 2024-11-19 01:04:40 -07:00
d997db1b28
Also, we were repeating the same code for diagnostics in 4 places. Extract into a function. Change-Id: I18d00e512a67679b915347a61126970cf02a7a4a Reviewed-on: https://go-review.googlesource.com/c/tools/+/196019 Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Cottrell <iancottrell@google.com>
104 lines
2.9 KiB
Go
104 lines
2.9 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package lsp
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import (
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"context"
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"sort"
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"golang.org/x/tools/internal/lsp/protocol"
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"golang.org/x/tools/internal/lsp/source"
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"golang.org/x/tools/internal/lsp/telemetry"
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"golang.org/x/tools/internal/span"
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"golang.org/x/tools/internal/telemetry/log"
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)
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func (s *Server) didChangeWatchedFiles(ctx context.Context, params *protocol.DidChangeWatchedFilesParams) error {
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options := s.session.Options()
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if !options.WatchFileChanges {
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return nil
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}
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for _, change := range params.Changes {
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uri := span.NewURI(change.URI)
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ctx := telemetry.File.With(ctx, uri)
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for _, view := range s.session.Views() {
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gof, _ := view.FindFile(ctx, uri).(source.GoFile)
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// If we have never seen this file before, there is nothing to do.
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if gof == nil {
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continue
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}
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// If client has this file open, don't do anything. The client's contents
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// must remain the source of truth.
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if s.session.IsOpen(uri) {
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break
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}
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switch change.Type {
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case protocol.Changed:
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log.Print(ctx, "watched file changed", telemetry.File)
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s.session.DidChangeOutOfBand(ctx, gof, change.Type)
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// Refresh diagnostics to reflect updated file contents.
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go s.diagnostics(view, uri)
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case protocol.Created:
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log.Print(ctx, "watched file created", telemetry.File)
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case protocol.Deleted:
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log.Print(ctx, "watched file deleted", telemetry.File)
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cphs, err := gof.CheckPackageHandles(ctx)
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if err != nil {
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log.Error(ctx, "didChangeWatchedFiles: GetPackage", err, telemetry.File)
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continue
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}
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// Find a different file in the same package we can use to trigger diagnostics.
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// TODO(rstambler): Allow diagnostics to be called per-package to avoid this.
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var otherFile source.GoFile
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sort.Slice(cphs, func(i, j int) bool {
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return len(cphs[i].Files()) > len(cphs[j].Files())
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})
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for _, ph := range cphs[0].Files() {
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if len(cphs) > 1 && contains(cphs[1], ph.File()) {
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continue
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}
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ident := ph.File().Identity()
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if ident.URI == gof.URI() {
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continue
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}
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otherFile, _ = view.FindFile(ctx, ident.URI).(source.GoFile)
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if otherFile != nil {
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break
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}
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}
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s.session.DidChangeOutOfBand(ctx, gof, change.Type)
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// If this was the only file in the package, clear its diagnostics.
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if otherFile == nil {
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if err := s.publishDiagnostics(ctx, uri, []source.Diagnostic{}); err != nil {
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log.Error(ctx, "failed to clear diagnostics", err, telemetry.URI.Of(uri))
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}
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return nil
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}
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go s.diagnostics(view, uri)
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}
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}
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}
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return nil
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}
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func contains(cph source.CheckPackageHandle, fh source.FileHandle) bool {
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for _, ph := range cph.Files() {
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if ph.File().Identity().URI == fh.Identity().URI {
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return true
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}
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}
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return false
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}
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