mirror of
https://github.com/golang/go
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1f0dd0289f
Now we register for and handle didChangeWatchedFiles "change" events. We don't handle "create" or "delete" yet. When a file changes on disk, there are two basic cases. If the editor has the file open, we want to ignore the change since we need to respect the file contents in the editor. If the file isn't open in the editor then we need to re-type check (and re-diagnose) any packages it belongs to. We will need special handling of go.mod changes, but start with just *.go files for now. I'm putting the new behavior behind an initialization flag while it is under development. Updates golang/go#31553 Change-Id: I81a767ebe12f5f82657752dcdfb069c5820cbaa0 Reviewed-on: https://go-review.googlesource.com/c/tools/+/190857 Reviewed-by: Ian Cottrell <iancottrell@google.com> Run-TryBot: Ian Cottrell <iancottrell@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
286 lines
9.5 KiB
Go
286 lines
9.5 KiB
Go
// Copyright 2018 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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"fmt"
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"net"
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"sync"
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"golang.org/x/tools/internal/jsonrpc2"
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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/span"
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)
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// NewClientServer
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func NewClientServer(ctx context.Context, cache source.Cache, client protocol.Client) (context.Context, *Server) {
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ctx = protocol.WithClient(ctx, client)
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return ctx, &Server{
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client: client,
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session: cache.NewSession(ctx),
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}
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}
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// NewServer starts an LSP server on the supplied stream, and waits until the
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// stream is closed.
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func NewServer(ctx context.Context, cache source.Cache, stream jsonrpc2.Stream) (context.Context, *Server) {
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s := &Server{}
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ctx, s.Conn, s.client = protocol.NewServer(ctx, stream, s)
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s.session = cache.NewSession(ctx)
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return ctx, s
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}
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// RunServerOnPort starts an LSP server on the given port and does not exit.
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// This function exists for debugging purposes.
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func RunServerOnPort(ctx context.Context, cache source.Cache, port int, h func(ctx context.Context, s *Server)) error {
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return RunServerOnAddress(ctx, cache, fmt.Sprintf(":%v", port), h)
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}
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// RunServerOnPort starts an LSP server on the given port and does not exit.
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// This function exists for debugging purposes.
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func RunServerOnAddress(ctx context.Context, cache source.Cache, addr string, h func(ctx context.Context, s *Server)) error {
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ln, err := net.Listen("tcp", addr)
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if err != nil {
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return err
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}
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for {
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conn, err := ln.Accept()
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if err != nil {
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return err
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}
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h(NewServer(ctx, cache, jsonrpc2.NewHeaderStream(conn, conn)))
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}
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}
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func (s *Server) Run(ctx context.Context) error {
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return s.Conn.Run(ctx)
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}
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type serverState int
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const (
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serverCreated = serverState(iota)
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serverInitializing // set once the server has received "initialize" request
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serverInitialized // set once the server has received "initialized" request
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serverShutDown
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)
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type Server struct {
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Conn *jsonrpc2.Conn
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client protocol.Client
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stateMu sync.Mutex
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state serverState
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// Configurations.
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// TODO(rstambler): Separate these into their own struct?
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usePlaceholders bool
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hoverKind hoverKind
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useDeepCompletions bool
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watchFileChanges bool
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wantCompletionDocumentation bool
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wantUnimportedCompletions bool
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insertTextFormat protocol.InsertTextFormat
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configurationSupported bool
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dynamicConfigurationSupported bool
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dynamicWatchedFilesSupported bool
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preferredContentFormat protocol.MarkupKind
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disabledAnalyses map[string]struct{}
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wantSuggestedFixes bool
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supportedCodeActions map[source.FileKind]map[protocol.CodeActionKind]bool
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textDocumentSyncKind protocol.TextDocumentSyncKind
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session source.Session
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// undelivered is a cache of any diagnostics that the server
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// failed to deliver for some reason.
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undeliveredMu sync.Mutex
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undelivered map[span.URI][]source.Diagnostic
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}
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// General
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func (s *Server) Initialize(ctx context.Context, params *protocol.InitializeParams) (*protocol.InitializeResult, error) {
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return s.initialize(ctx, params)
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}
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func (s *Server) Initialized(ctx context.Context, params *protocol.InitializedParams) error {
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return s.initialized(ctx, params)
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}
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func (s *Server) Shutdown(ctx context.Context) error {
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return s.shutdown(ctx)
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}
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func (s *Server) Exit(ctx context.Context) error {
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return s.exit(ctx)
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}
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// Workspace
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func (s *Server) DidChangeWorkspaceFolders(ctx context.Context, params *protocol.DidChangeWorkspaceFoldersParams) error {
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return s.changeFolders(ctx, params.Event)
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}
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func (s *Server) DidChangeConfiguration(context.Context, *protocol.DidChangeConfigurationParams) error {
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return notImplemented("DidChangeConfiguration")
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}
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func (s *Server) DidChangeWatchedFiles(ctx context.Context, params *protocol.DidChangeWatchedFilesParams) error {
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return s.didChangeWatchedFiles(ctx, params)
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}
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func (s *Server) Symbol(context.Context, *protocol.WorkspaceSymbolParams) ([]protocol.SymbolInformation, error) {
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return nil, notImplemented("Symbol")
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}
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func (s *Server) ExecuteCommand(context.Context, *protocol.ExecuteCommandParams) (interface{}, error) {
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return nil, notImplemented("ExecuteCommand")
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}
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// Text Synchronization
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func (s *Server) DidOpen(ctx context.Context, params *protocol.DidOpenTextDocumentParams) error {
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return s.didOpen(ctx, params)
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}
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func (s *Server) DidChange(ctx context.Context, params *protocol.DidChangeTextDocumentParams) error {
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return s.didChange(ctx, params)
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}
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func (s *Server) WillSave(context.Context, *protocol.WillSaveTextDocumentParams) error {
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return notImplemented("WillSave")
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}
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func (s *Server) WillSaveWaitUntil(context.Context, *protocol.WillSaveTextDocumentParams) ([]protocol.TextEdit, error) {
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return nil, notImplemented("WillSaveWaitUntil")
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}
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func (s *Server) DidSave(ctx context.Context, params *protocol.DidSaveTextDocumentParams) error {
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return s.didSave(ctx, params)
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}
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func (s *Server) DidClose(ctx context.Context, params *protocol.DidCloseTextDocumentParams) error {
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return s.didClose(ctx, params)
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}
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// Language Features
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func (s *Server) Completion(ctx context.Context, params *protocol.CompletionParams) (*protocol.CompletionList, error) {
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return s.completion(ctx, params)
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}
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func (s *Server) Resolve(ctx context.Context, item *protocol.CompletionItem) (*protocol.CompletionItem, error) {
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return nil, notImplemented("completionItem/resolve")
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}
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func (s *Server) Hover(ctx context.Context, params *protocol.TextDocumentPositionParams) (*protocol.Hover, error) {
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return s.hover(ctx, params)
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}
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func (s *Server) SignatureHelp(ctx context.Context, params *protocol.TextDocumentPositionParams) (*protocol.SignatureHelp, error) {
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return s.signatureHelp(ctx, params)
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}
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func (s *Server) Definition(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
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return s.definition(ctx, params)
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}
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func (s *Server) TypeDefinition(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
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return s.typeDefinition(ctx, params)
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}
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func (s *Server) Implementation(context.Context, *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
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return nil, notImplemented("Implementation")
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}
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func (s *Server) References(ctx context.Context, params *protocol.ReferenceParams) ([]protocol.Location, error) {
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return s.references(ctx, params)
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}
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func (s *Server) DocumentHighlight(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.DocumentHighlight, error) {
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return s.documentHighlight(ctx, params)
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}
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func (s *Server) DocumentSymbol(ctx context.Context, params *protocol.DocumentSymbolParams) ([]protocol.DocumentSymbol, error) {
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return s.documentSymbol(ctx, params)
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}
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func (s *Server) CodeAction(ctx context.Context, params *protocol.CodeActionParams) ([]protocol.CodeAction, error) {
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return s.codeAction(ctx, params)
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}
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func (s *Server) CodeLens(context.Context, *protocol.CodeLensParams) ([]protocol.CodeLens, error) {
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return nil, nil // ignore
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}
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func (s *Server) ResolveCodeLens(context.Context, *protocol.CodeLens) (*protocol.CodeLens, error) {
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return nil, notImplemented("ResolveCodeLens")
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}
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func (s *Server) DocumentLink(ctx context.Context, params *protocol.DocumentLinkParams) ([]protocol.DocumentLink, error) {
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return s.documentLink(ctx, params)
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}
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func (s *Server) ResolveDocumentLink(context.Context, *protocol.DocumentLink) (*protocol.DocumentLink, error) {
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return nil, notImplemented("ResolveDocumentLink")
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}
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func (s *Server) DocumentColor(context.Context, *protocol.DocumentColorParams) ([]protocol.ColorInformation, error) {
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return nil, notImplemented("DocumentColor")
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}
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func (s *Server) ColorPresentation(context.Context, *protocol.ColorPresentationParams) ([]protocol.ColorPresentation, error) {
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return nil, notImplemented("ColorPresentation")
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}
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func (s *Server) Formatting(ctx context.Context, params *protocol.DocumentFormattingParams) ([]protocol.TextEdit, error) {
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return s.formatting(ctx, params)
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}
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func (s *Server) RangeFormatting(ctx context.Context, params *protocol.DocumentRangeFormattingParams) ([]protocol.TextEdit, error) {
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return nil, notImplemented("RangeFormatting")
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}
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func (s *Server) OnTypeFormatting(context.Context, *protocol.DocumentOnTypeFormattingParams) ([]protocol.TextEdit, error) {
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return nil, notImplemented("OnTypeFormatting")
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}
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func (s *Server) Rename(ctx context.Context, params *protocol.RenameParams) (*protocol.WorkspaceEdit, error) {
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return s.rename(ctx, params)
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}
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func (s *Server) Declaration(context.Context, *protocol.TextDocumentPositionParams) ([]protocol.DeclarationLink, error) {
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return nil, notImplemented("Declaration")
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}
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func (s *Server) FoldingRange(context.Context, *protocol.FoldingRangeParams) ([]protocol.FoldingRange, error) {
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return nil, notImplemented("FoldingRange")
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}
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func (s *Server) LogTraceNotification(context.Context, *protocol.LogTraceParams) error {
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return notImplemented("LogtraceNotification")
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}
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func (s *Server) PrepareRename(context.Context, *protocol.TextDocumentPositionParams) (*protocol.Range, error) {
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return nil, notImplemented("PrepareRename")
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}
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func (s *Server) SetTraceNotification(context.Context, *protocol.SetTraceParams) error {
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return notImplemented("SetTraceNotification")
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}
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func (s *Server) SelectionRange(context.Context, *protocol.SelectionRangeParams) ([]protocol.SelectionRange, error) {
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return nil, notImplemented("SelectionRange")
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}
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func notImplemented(method string) *jsonrpc2.Error {
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return jsonrpc2.NewErrorf(jsonrpc2.CodeMethodNotFound, "method %q not yet implemented", method)
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}
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