mirror of
https://github.com/golang/go
synced 2024-09-30 14:18:32 -06:00
cmd/golsp: An empty shell of an lsp server for the go language
Change-Id: I51ef556048c2d10537ad90fa5284939e09bc31fd Reviewed-on: https://go-review.googlesource.com/137097 Reviewed-by: Rebecca Stambler <rstambler@golang.org> Reviewed-by: Alan Donovan <adonovan@google.com>
This commit is contained in:
Ian Cottrell
Rebecca Stambler
parent
9e2f8b2a0a
commit
ef04bbebd8
90
cmd/golsp/main.go
Normal file
90
cmd/golsp/main.go
Normal file
@ -0,0 +1,90 @@
|
||||
// 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.
|
||||
|
||||
// The golsp command is an LSP server for Go.
|
||||
// The Language Server Protocol allows any text editor
|
||||
// to be extended with IDE-like features;
|
||||
// see https://langserver.org/ for details.
|
||||
package main // import "golang.org/x/tools/cmd/golsp"
|
||||
|
||||
import (
|
||||
"context"
|
||||
"flag"
|
||||
"fmt"
|
||||
"log"
|
||||
"os"
|
||||
"runtime"
|
||||
"runtime/pprof"
|
||||
"runtime/trace"
|
||||
|
||||
"golang.org/x/tools/internal/jsonrpc2"
|
||||
"golang.org/x/tools/internal/lsp"
|
||||
)
|
||||
|
||||
var (
|
||||
cpuprofile = flag.String("cpuprofile", "", "write CPU profile to this file")
|
||||
memprofile = flag.String("memprofile", "", "write memory profile to this file")
|
||||
traceFlag = flag.String("trace", "", "write trace log to this file")
|
||||
)
|
||||
|
||||
func main() {
|
||||
flag.Usage = func() {
|
||||
fmt.Fprintf(os.Stderr, "usage: golsp [flags]\n")
|
||||
flag.PrintDefaults()
|
||||
}
|
||||
flag.Parse()
|
||||
if flag.NArg() > 0 {
|
||||
flag.Usage()
|
||||
os.Exit(2)
|
||||
}
|
||||
|
||||
if *cpuprofile != "" {
|
||||
f, err := os.Create(*cpuprofile)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
if err := pprof.StartCPUProfile(f); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
// NB: profile won't be written in case of error.
|
||||
defer pprof.StopCPUProfile()
|
||||
}
|
||||
|
||||
if *traceFlag != "" {
|
||||
f, err := os.Create(*traceFlag)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
if err := trace.Start(f); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
// NB: trace log won't be written in case of error.
|
||||
defer func() {
|
||||
trace.Stop()
|
||||
log.Printf("To view the trace, run:\n$ go tool trace view %s", *traceFlag)
|
||||
}()
|
||||
}
|
||||
|
||||
if *memprofile != "" {
|
||||
f, err := os.Create(*memprofile)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
// NB: memprofile won't be written in case of error.
|
||||
defer func() {
|
||||
runtime.GC() // get up-to-date statistics
|
||||
if err := pprof.WriteHeapProfile(f); err != nil {
|
||||
log.Fatalf("Writing memory profile: %v", err)
|
||||
}
|
||||
f.Close()
|
||||
}()
|
||||
}
|
||||
if err := run(context.Background()); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
||||
func run(ctx context.Context) error {
|
||||
return lsp.RunServer(ctx, jsonrpc2.NewHeaderStream(os.Stdin, os.Stdout), jsonrpc2.Log)
|
||||
}
|
||||
177
internal/lsp/server.go
Normal file
177
internal/lsp/server.go
Normal file
@ -0,0 +1,177 @@
|
||||
// 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"
|
||||
|
||||
"golang.org/x/tools/internal/jsonrpc2"
|
||||
"golang.org/x/tools/internal/lsp/protocol"
|
||||
)
|
||||
|
||||
// RunServer starts an LSP server on the supplied stream, and waits until the
|
||||
// stream is closed.
|
||||
func RunServer(ctx context.Context, stream jsonrpc2.Stream, opts ...interface{}) error {
|
||||
s := &server{}
|
||||
conn, client := protocol.RunServer(ctx, stream, s, opts...)
|
||||
s.client = client
|
||||
return conn.Wait(ctx)
|
||||
}
|
||||
|
||||
type server struct {
|
||||
client protocol.Client
|
||||
}
|
||||
|
||||
func notImplemented(method string) *jsonrpc2.Error {
|
||||
return jsonrpc2.NewErrorf(jsonrpc2.CodeMethodNotFound, "method %q not yet implemented", method)
|
||||
}
|
||||
|
||||
func (s *server) Initialize(context.Context, *protocol.InitializeParams) (*protocol.InitializeResult, error) {
|
||||
return nil, notImplemented("Initialize")
|
||||
}
|
||||
|
||||
func (s *server) Initialized(context.Context, *protocol.InitializedParams) error {
|
||||
return notImplemented("Initialized")
|
||||
}
|
||||
|
||||
func (s *server) Shutdown(context.Context) error {
|
||||
return notImplemented("Shutdown")
|
||||
}
|
||||
|
||||
func (s *server) Exit(context.Context) error {
|
||||
return notImplemented("Exit")
|
||||
}
|
||||
|
||||
func (s *server) DidChangeWorkspaceFolders(context.Context, *protocol.DidChangeWorkspaceFoldersParams) error {
|
||||
return notImplemented("DidChangeWorkspaceFolders")
|
||||
}
|
||||
|
||||
func (s *server) DidChangeConfiguration(context.Context, *protocol.DidChangeConfigurationParams) error {
|
||||
return notImplemented("DidChangeConfiguration")
|
||||
}
|
||||
|
||||
func (s *server) DidChangeWatchedFiles(context.Context, *protocol.DidChangeWatchedFilesParams) error {
|
||||
return notImplemented("DidChangeWatchedFiles")
|
||||
}
|
||||
|
||||
func (s *server) Symbols(context.Context, *protocol.WorkspaceSymbolParams) ([]protocol.SymbolInformation, error) {
|
||||
return nil, notImplemented("Symbols")
|
||||
}
|
||||
|
||||
func (s *server) ExecuteCommand(context.Context, *protocol.ExecuteCommandParams) (interface{}, error) {
|
||||
return nil, notImplemented("ExecuteCommand")
|
||||
}
|
||||
|
||||
func (s *server) DidOpen(context.Context, *protocol.DidOpenTextDocumentParams) error {
|
||||
return notImplemented("DidOpen")
|
||||
}
|
||||
|
||||
func (s *server) DidChange(context.Context, *protocol.DidChangeTextDocumentParams) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *server) WillSave(context.Context, *protocol.WillSaveTextDocumentParams) error {
|
||||
return notImplemented("WillSave")
|
||||
}
|
||||
|
||||
func (s *server) WillSaveWaitUntil(context.Context, *protocol.WillSaveTextDocumentParams) ([]protocol.TextEdit, error) {
|
||||
return nil, notImplemented("WillSaveWaitUntil")
|
||||
}
|
||||
|
||||
func (s *server) DidSave(context.Context, *protocol.DidSaveTextDocumentParams) error {
|
||||
return notImplemented("DidSave")
|
||||
}
|
||||
|
||||
func (s *server) DidClose(context.Context, *protocol.DidCloseTextDocumentParams) error {
|
||||
return notImplemented("DidClose")
|
||||
}
|
||||
|
||||
func (s *server) Completion(context.Context, *protocol.CompletionParams) (*protocol.CompletionList, error) {
|
||||
return nil, notImplemented("Completion")
|
||||
}
|
||||
|
||||
func (s *server) CompletionResolve(context.Context, *protocol.CompletionItem) (*protocol.CompletionItem, error) {
|
||||
return nil, notImplemented("CompletionResolve")
|
||||
}
|
||||
|
||||
func (s *server) Hover(context.Context, *protocol.TextDocumentPositionParams) (*protocol.Hover, error) {
|
||||
return nil, notImplemented("Hover")
|
||||
}
|
||||
|
||||
func (s *server) SignatureHelp(context.Context, *protocol.TextDocumentPositionParams) (*protocol.SignatureHelp, error) {
|
||||
return nil, notImplemented("SignatureHelp")
|
||||
}
|
||||
|
||||
func (s *server) Definition(context.Context, *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
|
||||
return nil, notImplemented("Definition")
|
||||
}
|
||||
|
||||
func (s *server) TypeDefinition(context.Context, *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
|
||||
return nil, notImplemented("TypeDefinition")
|
||||
}
|
||||
|
||||
func (s *server) Implementation(context.Context, *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
|
||||
return nil, notImplemented("Implementation")
|
||||
}
|
||||
|
||||
func (s *server) References(context.Context, *protocol.ReferenceParams) ([]protocol.Location, error) {
|
||||
return nil, notImplemented("References")
|
||||
}
|
||||
|
||||
func (s *server) DocumentHighlight(context.Context, *protocol.TextDocumentPositionParams) ([]protocol.DocumentHighlight, error) {
|
||||
return nil, notImplemented("DocumentHighlight")
|
||||
}
|
||||
|
||||
func (s *server) DocumentSymbol(context.Context, *protocol.DocumentSymbolParams) ([]protocol.DocumentSymbol, error) {
|
||||
return nil, notImplemented("DocumentSymbol")
|
||||
}
|
||||
|
||||
func (s *server) CodeAction(context.Context, *protocol.CodeActionParams) ([]protocol.CodeAction, error) {
|
||||
return nil, notImplemented("CodeAction")
|
||||
}
|
||||
|
||||
func (s *server) CodeLens(context.Context, *protocol.CodeLensParams) ([]protocol.CodeLens, error) {
|
||||
return nil, notImplemented("CodeLens")
|
||||
}
|
||||
|
||||
func (s *server) CodeLensResolve(context.Context, *protocol.CodeLens) (*protocol.CodeLens, error) {
|
||||
return nil, notImplemented("CodeLensResolve")
|
||||
}
|
||||
|
||||
func (s *server) DocumentLink(context.Context, *protocol.DocumentLinkParams) ([]protocol.DocumentLink, error) {
|
||||
return nil, notImplemented("DocumentLink")
|
||||
}
|
||||
|
||||
func (s *server) DocumentLinkResolve(context.Context, *protocol.DocumentLink) (*protocol.DocumentLink, error) {
|
||||
return nil, notImplemented("DocumentLinkResolve")
|
||||
}
|
||||
|
||||
func (s *server) DocumentColor(context.Context, *protocol.DocumentColorParams) ([]protocol.ColorInformation, error) {
|
||||
return nil, notImplemented("DocumentColor")
|
||||
}
|
||||
|
||||
func (s *server) ColorPresentation(context.Context, *protocol.ColorPresentationParams) ([]protocol.ColorPresentation, error) {
|
||||
return nil, notImplemented("ColorPresentation")
|
||||
}
|
||||
|
||||
func (s *server) Formatting(context.Context, *protocol.DocumentFormattingParams) ([]protocol.TextEdit, error) {
|
||||
return nil, notImplemented("Formatting")
|
||||
}
|
||||
|
||||
func (s *server) RangeFormatting(context.Context, *protocol.DocumentRangeFormattingParams) ([]protocol.TextEdit, error) {
|
||||
return nil, notImplemented("RangeFormatting")
|
||||
}
|
||||
|
||||
func (s *server) OnTypeFormatting(context.Context, *protocol.DocumentOnTypeFormattingParams) ([]protocol.TextEdit, error) {
|
||||
return nil, notImplemented("OnTypeFormatting")
|
||||
}
|
||||
|
||||
func (s *server) Rename(context.Context, *protocol.RenameParams) ([]protocol.WorkspaceEdit, error) {
|
||||
return nil, notImplemented("Rename")
|
||||
}
|
||||
|
||||
func (s *server) FoldingRanges(context.Context, *protocol.FoldingRangeRequestParam) ([]protocol.FoldingRange, error) {
|
||||
return nil, notImplemented("FoldingRanges")
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user