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mirror of https://github.com/golang/go synced 2024-11-18 16:54:43 -07:00

internal/jsonrpc2: split main loop from construction to fix race

This changes the basic API of a jsonrpc2 connection to run the
read loop as a method rather than in a go routine launched in
the NewConn. This allows the handler to be created and bound
between construction and the read loop starting, which fixes
the race.

Fixes golang/go#30091

Change-Id: I8201175affe431819cf473e5194d70c019f58425
Reviewed-on: https://go-review.googlesource.com/c/tools/+/170003
Run-TryBot: Ian Cottrell <iancottrell@google.com>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This commit is contained in:
Ian Cottrell 2019-03-28 21:06:01 -04:00
parent 0926561711
commit a8f40b3f4d
8 changed files with 151 additions and 180 deletions

View File

@ -19,13 +19,12 @@ import (
// Conn is a JSON RPC 2 client server connection.
// Conn is bidirectional; it does not have a designated server or client end.
type Conn struct {
handle Handler
cancel Canceler
log Logger
seq int64 // must only be accessed using atomic operations
Handler Handler
Canceler Canceler
Logger Logger
stream Stream
done chan struct{}
err error
seq int64 // must only be accessed using atomic operations
pendingMu sync.Mutex // protects the pending map
pending map[ID]chan *Response
handlingMu sync.Mutex // protects the handling map
@ -57,70 +56,27 @@ func NewErrorf(code int64, format string, args ...interface{}) *Error {
}
}
// NewConn creates a new connection object that reads and writes messages from
// the supplied stream and dispatches incoming messages to the supplied handler.
func NewConn(ctx context.Context, s Stream, options ...interface{}) *Conn {
// NewConn creates a new connection object around the supplied stream.
// You must call Run for the connection to be active.
func NewConn(s Stream) *Conn {
conn := &Conn{
stream: s,
done: make(chan struct{}),
pending: make(map[ID]chan *Response),
handling: make(map[ID]handling),
}
for _, opt := range options {
switch opt := opt.(type) {
case Handler:
if conn.handle != nil {
panic("Duplicate Handler function in options list")
}
conn.handle = opt
case Canceler:
if conn.cancel != nil {
panic("Duplicate Canceler function in options list")
}
conn.cancel = opt
case Logger:
if conn.log != nil {
panic("Duplicate Logger function in options list")
}
conn.log = opt
default:
panic(fmt.Errorf("Unknown option type %T in options list", opt))
// the default handler reports a method error
conn.Handler = func(ctx context.Context, c *Conn, r *Request) {
if r.IsNotify() {
c.Reply(ctx, r, nil, NewErrorf(CodeMethodNotFound, "method %q not found", r.Method))
}
}
if conn.handle == nil {
// the default handler reports a method error
conn.handle = func(ctx context.Context, c *Conn, r *Request) {
if r.IsNotify() {
c.Reply(ctx, r, nil, NewErrorf(CodeMethodNotFound, "method %q not found", r.Method))
}
}
}
if conn.cancel == nil {
// the default canceller does nothing
conn.cancel = func(context.Context, *Conn, *Request) {}
}
if conn.log == nil {
// the default logger does nothing
conn.log = func(Direction, *ID, time.Duration, string, *json.RawMessage, *Error) {}
}
go func() {
conn.err = conn.run(ctx)
close(conn.done)
}()
// the default canceller does nothing
conn.Canceler = func(context.Context, *Conn, *Request) {}
// the default logger does nothing
conn.Logger = func(Direction, *ID, time.Duration, string, *json.RawMessage, *Error) {}
return conn
}
// Wait blocks until the connection is terminated, and returns any error that
// cause the termination.
func (c *Conn) Wait(ctx context.Context) error {
select {
case <-c.done:
return c.err
case <-ctx.Done():
return ctx.Err()
}
}
// Cancel cancels a pending Call on the server side.
// The call is identified by its id.
// JSON RPC 2 does not specify a cancel message, so cancellation support is not
@ -151,7 +107,7 @@ func (c *Conn) Notify(ctx context.Context, method string, params interface{}) er
if err != nil {
return fmt.Errorf("marshalling notify request: %v", err)
}
c.log(Send, nil, -1, request.Method, request.Params, nil)
c.Logger(Send, nil, -1, request.Method, request.Params, nil)
return c.stream.Write(ctx, data)
}
@ -189,7 +145,7 @@ func (c *Conn) Call(ctx context.Context, method string, params, result interface
}()
// now we are ready to send
before := time.Now()
c.log(Send, request.ID, -1, request.Method, request.Params, nil)
c.Logger(Send, request.ID, -1, request.Method, request.Params, nil)
if err := c.stream.Write(ctx, data); err != nil {
// sending failed, we will never get a response, so don't leave it pending
return err
@ -198,7 +154,7 @@ func (c *Conn) Call(ctx context.Context, method string, params, result interface
select {
case response := <-rchan:
elapsed := time.Since(before)
c.log(Send, response.ID, elapsed, request.Method, response.Result, response.Error)
c.Logger(Send, response.ID, elapsed, request.Method, response.Result, response.Error)
// is it an error response?
if response.Error != nil {
return response.Error
@ -212,7 +168,7 @@ func (c *Conn) Call(ctx context.Context, method string, params, result interface
return nil
case <-ctx.Done():
// allow the handler to propagate the cancel
c.cancel(ctx, c, request)
c.Canceler(ctx, c, request)
return ctx.Err()
}
}
@ -255,7 +211,7 @@ func (c *Conn) Reply(ctx context.Context, req *Request, result interface{}, err
if err != nil {
return err
}
c.log(Send, response.ID, elapsed, req.Method, response.Result, response.Error)
c.Logger(Send, response.ID, elapsed, req.Method, response.Result, response.Error)
if err = c.stream.Write(ctx, data); err != nil {
// TODO(iancottrell): if a stream write fails, we really need to shut down
// the whole stream
@ -281,10 +237,11 @@ type combined struct {
Error *Error `json:"error,omitempty"`
}
// Run starts a read loop on the supplied reader.
// Run blocks until the connection is terminated, and returns any error that
// caused the termination.
// It must be called exactly once for each Conn.
// It returns only when the reader is closed or there is an error in the stream.
func (c *Conn) run(ctx context.Context) error {
func (c *Conn) Run(ctx context.Context) error {
for {
// get the data for a message
data, err := c.stream.Read(ctx)
@ -297,7 +254,7 @@ func (c *Conn) run(ctx context.Context) error {
if err := json.Unmarshal(data, msg); err != nil {
// a badly formed message arrived, log it and continue
// we trust the stream to have isolated the error to just this message
c.log(Receive, nil, -1, "", nil, NewErrorf(0, "unmarshal failed: %v", err))
c.Logger(Receive, nil, -1, "", nil, NewErrorf(0, "unmarshal failed: %v", err))
continue
}
// work out which kind of message we have
@ -310,9 +267,9 @@ func (c *Conn) run(ctx context.Context) error {
ID: msg.ID,
}
if request.IsNotify() {
c.log(Receive, request.ID, -1, request.Method, request.Params, nil)
c.Logger(Receive, request.ID, -1, request.Method, request.Params, nil)
// we have a Notify, forward to the handler in a go routine
c.handle(ctx, c, request)
c.Handler(ctx, c, request)
} else {
// we have a Call, forward to the handler in another go routine
reqCtx, cancelReq := context.WithCancel(ctx)
@ -323,8 +280,8 @@ func (c *Conn) run(ctx context.Context) error {
start: time.Now(),
}
c.handlingMu.Unlock()
c.log(Receive, request.ID, -1, request.Method, request.Params, nil)
c.handle(reqCtx, c, request)
c.Logger(Receive, request.ID, -1, request.Method, request.Params, nil)
c.Handler(reqCtx, c, request)
}
case msg.ID != nil:
// we have a response, get the pending entry from the map
@ -343,7 +300,7 @@ func (c *Conn) run(ctx context.Context) error {
rchan <- response
close(rchan)
default:
c.log(Receive, nil, -1, "", nil, NewErrorf(0, "message not a call, notify or response, ignoring"))
c.Logger(Receive, nil, -1, "", nil, NewErrorf(0, "message not a call, notify or response, ignoring"))
}
}
}

View File

@ -90,42 +90,36 @@ func TestHeaderCall(t *testing.T) {
}
}
func prepare(ctx context.Context, t *testing.T, withHeaders bool) (*testHandler, *testHandler) {
a := &testHandler{t: t}
b := &testHandler{t: t}
a.reader, b.writer = io.Pipe()
b.reader, a.writer = io.Pipe()
for _, h := range []*testHandler{a, b} {
h := h
if withHeaders {
h.stream = jsonrpc2.NewHeaderStream(h.reader, h.writer)
} else {
h.stream = jsonrpc2.NewStream(h.reader, h.writer)
}
args := []interface{}{jsonrpc2.Handler(handle)}
if *logRPC {
args = append(args, jsonrpc2.Log)
}
h.Conn = jsonrpc2.NewConn(ctx, h.stream, args...)
go func() {
defer func() {
h.reader.Close()
h.writer.Close()
}()
if err := h.Conn.Wait(ctx); err != nil {
t.Fatalf("Stream failed: %v", err)
}
}()
}
func prepare(ctx context.Context, t *testing.T, withHeaders bool) (*jsonrpc2.Conn, *jsonrpc2.Conn) {
aR, bW := io.Pipe()
bR, aW := io.Pipe()
a := run(ctx, t, withHeaders, aR, aW)
b := run(ctx, t, withHeaders, bR, bW)
return a, b
}
type testHandler struct {
t *testing.T
reader *io.PipeReader
writer *io.PipeWriter
stream jsonrpc2.Stream
*jsonrpc2.Conn
func run(ctx context.Context, t *testing.T, withHeaders bool, r io.ReadCloser, w io.WriteCloser) *jsonrpc2.Conn {
var stream jsonrpc2.Stream
if withHeaders {
stream = jsonrpc2.NewHeaderStream(r, w)
} else {
stream = jsonrpc2.NewStream(r, w)
}
conn := jsonrpc2.NewConn(stream)
conn.Handler = handle
if *logRPC {
conn.Logger = jsonrpc2.Log
}
go func() {
defer func() {
r.Close()
w.Close()
}()
if err := conn.Run(ctx); err != nil {
t.Fatalf("Stream failed: %v", err)
}
}()
return conn
}
func handle(ctx context.Context, c *jsonrpc2.Conn, r *jsonrpc2.Request) {

View File

@ -121,22 +121,26 @@ func (app *Application) connect(ctx context.Context, client protocol.Client) (pr
var server protocol.Server
switch app.Remote {
case "":
server = lsp.NewServer(client)
server = lsp.NewClientServer(client)
case "internal":
cr, sw, _ := os.Pipe()
sr, cw, _ := os.Pipe()
_, server = protocol.RunClient(ctx, jsonrpc2.NewHeaderStream(cr, cw), client)
go lsp.RunServer(ctx, jsonrpc2.NewHeaderStream(sr, sw))
var jc *jsonrpc2.Conn
jc, server = protocol.NewClient(jsonrpc2.NewHeaderStream(cr, cw), client)
go jc.Run(ctx)
go lsp.NewServer(jsonrpc2.NewHeaderStream(sr, sw)).Run(ctx)
default:
conn, err := net.Dial("tcp", app.Remote)
if err != nil {
return nil, err
}
stream := jsonrpc2.NewHeaderStream(conn, conn)
_, server = protocol.RunClient(ctx, stream, client)
var jc *jsonrpc2.Conn
jc, server = protocol.NewClient(stream, client)
if err != nil {
return nil, err
}
go jc.Run(ctx)
}
params := &protocol.InitializeParams{}
params.RootURI = string(span.FileURI(app.Config.Dir))

View File

@ -119,14 +119,20 @@ func (s *Serve) Run(ctx context.Context, args ...string) error {
fmt.Fprintf(out, "%s", outx.String())
}
// For debugging purposes only.
run := func(srv *lsp.Server) {
srv.Conn.Logger = logger
go srv.Conn.Run(ctx)
}
if s.Address != "" {
return lsp.RunServerOnAddress(ctx, s.Address, logger)
return lsp.RunServerOnAddress(ctx, s.Address, run)
}
if s.Port != 0 {
return lsp.RunServerOnPort(ctx, s.Port, logger)
return lsp.RunServerOnPort(ctx, s.Port, run)
}
stream := jsonrpc2.NewHeaderStream(os.Stdin, os.Stdout)
return lsp.RunServer(ctx, stream, logger)
srv := lsp.NewServer(stream)
srv.Conn.Logger = logger
return srv.Conn.Run(ctx)
}
func (s *Serve) forward() error {

View File

@ -13,7 +13,7 @@ import (
"golang.org/x/tools/internal/span"
)
func (s *server) cacheAndDiagnose(ctx context.Context, uri span.URI, content string) error {
func (s *Server) cacheAndDiagnose(ctx context.Context, uri span.URI, content string) error {
if err := s.setContent(ctx, uri, []byte(content)); err != nil {
return err
}
@ -43,7 +43,7 @@ func (s *server) cacheAndDiagnose(ctx context.Context, uri span.URI, content str
return nil
}
func (s *server) setContent(ctx context.Context, uri span.URI, content []byte) error {
func (s *Server) setContent(ctx context.Context, uri span.URI, content []byte) error {
return s.view.SetContent(ctx, uri, content)
}

View File

@ -70,7 +70,7 @@ func testLSP(t *testing.T, exporter packagestest.Exporter) {
return parser.ParseFile(fset, filename, src, parser.AllErrors|parser.ParseComments)
}
s := &server{
s := &Server{
view: cache.NewView("lsp_test", span.FileURI(cfg.Dir), &cfg),
}
// Do a first pass to collect special markers for completion.
@ -285,7 +285,7 @@ Failed:
return msg.String()
}
func (c completions) test(t *testing.T, exported *packagestest.Exported, s *server, items completionItems) {
func (c completions) test(t *testing.T, exported *packagestest.Exported, s *Server, items completionItems) {
for src, itemList := range c {
var want []protocol.CompletionItem
for _, pos := range itemList {
@ -406,7 +406,7 @@ Failed:
return msg.String()
}
func (f formats) test(t *testing.T, s *server) {
func (f formats) test(t *testing.T, s *Server) {
ctx := context.Background()
for filename, gofmted := range f {
uri := span.FileURI(filename)
@ -444,7 +444,7 @@ func (f formats) collect(pos token.Position) {
f[pos.Filename] = stdout.String()
}
func (d definitions) test(t *testing.T, s *server, typ bool) {
func (d definitions) test(t *testing.T, s *Server, typ bool) {
for src, target := range d {
params := &protocol.TextDocumentPositionParams{
TextDocument: protocol.TextDocumentIdentifier{
@ -495,7 +495,7 @@ func (h highlights) collect(e *packagestest.Exported, fset *token.FileSet, name
h[name] = append(h[name], loc)
}
func (h highlights) test(t *testing.T, s *server) {
func (h highlights) test(t *testing.T, s *Server) {
for name, locations := range h {
params := &protocol.TextDocumentPositionParams{
TextDocument: protocol.TextDocumentIdentifier{
@ -547,7 +547,7 @@ func (s symbols) collect(e *packagestest.Exported, fset *token.FileSet, name str
})
}
func (s symbols) test(t *testing.T, server *server) {
func (s symbols) test(t *testing.T, server *Server) {
for uri, expectedSymbols := range s {
params := &protocol.DocumentSymbolParams{
TextDocument: protocol.TextDocumentIdentifier{

View File

@ -15,15 +15,17 @@ func canceller(ctx context.Context, conn *jsonrpc2.Conn, req *jsonrpc2.Request)
conn.Notify(context.Background(), "$/cancelRequest", &CancelParams{ID: *req.ID})
}
func RunClient(ctx context.Context, stream jsonrpc2.Stream, client Client, opts ...interface{}) (*jsonrpc2.Conn, Server) {
opts = append([]interface{}{clientHandler(client), jsonrpc2.Canceler(canceller)}, opts...)
conn := jsonrpc2.NewConn(ctx, stream, opts...)
func NewClient(stream jsonrpc2.Stream, client Client) (*jsonrpc2.Conn, Server) {
conn := jsonrpc2.NewConn(stream)
conn.Handler = clientHandler(client)
conn.Canceler = jsonrpc2.Canceler(canceller)
return conn, &serverDispatcher{Conn: conn}
}
func RunServer(ctx context.Context, stream jsonrpc2.Stream, server Server, opts ...interface{}) (*jsonrpc2.Conn, Client) {
opts = append([]interface{}{serverHandler(server), jsonrpc2.Canceler(canceller)}, opts...)
conn := jsonrpc2.NewConn(ctx, stream, opts...)
func NewServer(stream jsonrpc2.Stream, server Server) (*jsonrpc2.Conn, Client) {
conn := jsonrpc2.NewConn(stream)
conn.Handler = serverHandler(server)
conn.Canceler = jsonrpc2.Canceler(canceller)
return conn, &clientDispatcher{Conn: conn}
}

View File

@ -25,32 +25,33 @@ import (
"golang.org/x/tools/internal/span"
)
// NewServer
func NewServer(client protocol.Client) protocol.Server {
return &server{
// NewClientServer
func NewClientServer(client protocol.Client) *Server {
return &Server{
client: client,
configured: make(chan struct{}),
}
}
// RunServer starts an LSP server on the supplied stream, and waits until the
// NewServer 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 := NewServer(nil).(*server)
conn, client := protocol.RunServer(ctx, stream, s, opts...)
s.client = client
return conn.Wait(ctx)
func NewServer(stream jsonrpc2.Stream) *Server {
s := &Server{
configured: make(chan struct{}),
}
s.Conn, s.client = protocol.NewServer(stream, s)
return s
}
// RunServerOnPort starts an LSP server on the given port and does not exit.
// This function exists for debugging purposes.
func RunServerOnPort(ctx context.Context, port int, opts ...interface{}) error {
return RunServerOnAddress(ctx, fmt.Sprintf(":%v", port))
func RunServerOnPort(ctx context.Context, port int, h func(s *Server)) error {
return RunServerOnAddress(ctx, fmt.Sprintf(":%v", port), h)
}
// RunServerOnPort starts an LSP server on the given port and does not exit.
// This function exists for debugging purposes.
func RunServerOnAddress(ctx context.Context, addr string, opts ...interface{}) error {
func RunServerOnAddress(ctx context.Context, addr string, h func(s *Server)) error {
ln, err := net.Listen("tcp", addr)
if err != nil {
return err
@ -61,11 +62,14 @@ func RunServerOnAddress(ctx context.Context, addr string, opts ...interface{}) e
return err
}
stream := jsonrpc2.NewHeaderStream(conn, conn)
go RunServer(ctx, stream, opts...)
s := NewServer(stream)
h(s)
go s.Run(ctx)
}
}
type server struct {
type Server struct {
Conn *jsonrpc2.Conn
client protocol.Client
initializedMu sync.Mutex
@ -81,7 +85,11 @@ type server struct {
configured chan struct{}
}
func (s *server) Initialize(ctx context.Context, params *protocol.InitializeParams) (*protocol.InitializeResult, error) {
func (s *Server) Run(ctx context.Context) error {
return s.Conn.Run(ctx)
}
func (s *Server) Initialize(ctx context.Context, params *protocol.InitializeParams) (*protocol.InitializeResult, error) {
s.initializedMu.Lock()
defer s.initializedMu.Unlock()
if s.initialized {
@ -151,7 +159,7 @@ func (s *server) Initialize(ctx context.Context, params *protocol.InitializePara
}, nil
}
func (s *server) Initialized(ctx context.Context, params *protocol.InitializedParams) error {
func (s *Server) Initialized(ctx context.Context, params *protocol.InitializedParams) error {
go func() {
// we hae to do this in a go routine to unblock the jsonrpc processor
// but we also have to block all calls to packages.Load until this is done
@ -179,7 +187,7 @@ func (s *server) Initialized(ctx context.Context, params *protocol.InitializedPa
return nil
}
func (s *server) Shutdown(context.Context) error {
func (s *Server) Shutdown(context.Context) error {
s.initializedMu.Lock()
defer s.initializedMu.Unlock()
if !s.initialized {
@ -189,7 +197,7 @@ func (s *server) Shutdown(context.Context) error {
return nil
}
func (s *server) Exit(ctx context.Context) error {
func (s *Server) Exit(ctx context.Context) error {
if s.initialized {
os.Exit(1)
}
@ -197,31 +205,31 @@ func (s *server) Exit(ctx context.Context) error {
return nil
}
func (s *server) DidChangeWorkspaceFolders(context.Context, *protocol.DidChangeWorkspaceFoldersParams) error {
func (s *Server) DidChangeWorkspaceFolders(context.Context, *protocol.DidChangeWorkspaceFoldersParams) error {
return notImplemented("DidChangeWorkspaceFolders")
}
func (s *server) DidChangeConfiguration(context.Context, *protocol.DidChangeConfigurationParams) error {
func (s *Server) DidChangeConfiguration(context.Context, *protocol.DidChangeConfigurationParams) error {
return notImplemented("DidChangeConfiguration")
}
func (s *server) DidChangeWatchedFiles(context.Context, *protocol.DidChangeWatchedFilesParams) error {
func (s *Server) DidChangeWatchedFiles(context.Context, *protocol.DidChangeWatchedFilesParams) error {
return notImplemented("DidChangeWatchedFiles")
}
func (s *server) Symbols(context.Context, *protocol.WorkspaceSymbolParams) ([]protocol.SymbolInformation, error) {
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) {
func (s *Server) ExecuteCommand(context.Context, *protocol.ExecuteCommandParams) (interface{}, error) {
return nil, notImplemented("ExecuteCommand")
}
func (s *server) DidOpen(ctx context.Context, params *protocol.DidOpenTextDocumentParams) error {
func (s *Server) DidOpen(ctx context.Context, params *protocol.DidOpenTextDocumentParams) error {
return s.cacheAndDiagnose(ctx, span.NewURI(params.TextDocument.URI), params.TextDocument.Text)
}
func (s *server) applyChanges(ctx context.Context, params *protocol.DidChangeTextDocumentParams) (string, error) {
func (s *Server) applyChanges(ctx context.Context, params *protocol.DidChangeTextDocumentParams) (string, error) {
if len(params.ContentChanges) == 1 && params.ContentChanges[0].Range == nil {
// If range is empty, we expect the full content of file, i.e. a single change with no range.
change := params.ContentChanges[0]
@ -257,7 +265,7 @@ func (s *server) applyChanges(ctx context.Context, params *protocol.DidChangeTex
return string(content), nil
}
func (s *server) DidChange(ctx context.Context, params *protocol.DidChangeTextDocumentParams) error {
func (s *Server) DidChange(ctx context.Context, params *protocol.DidChangeTextDocumentParams) error {
if len(params.ContentChanges) < 1 {
return jsonrpc2.NewErrorf(jsonrpc2.CodeInternalError, "no content changes provided")
}
@ -281,24 +289,24 @@ func (s *server) DidChange(ctx context.Context, params *protocol.DidChangeTextDo
return s.cacheAndDiagnose(ctx, span.NewURI(params.TextDocument.URI), text)
}
func (s *server) WillSave(context.Context, *protocol.WillSaveTextDocumentParams) error {
func (s *Server) WillSave(context.Context, *protocol.WillSaveTextDocumentParams) error {
return notImplemented("WillSave")
}
func (s *server) WillSaveWaitUntil(context.Context, *protocol.WillSaveTextDocumentParams) ([]protocol.TextEdit, error) {
func (s *Server) WillSaveWaitUntil(context.Context, *protocol.WillSaveTextDocumentParams) ([]protocol.TextEdit, error) {
return nil, notImplemented("WillSaveWaitUntil")
}
func (s *server) DidSave(context.Context, *protocol.DidSaveTextDocumentParams) error {
func (s *Server) DidSave(context.Context, *protocol.DidSaveTextDocumentParams) error {
return nil // ignore
}
func (s *server) DidClose(ctx context.Context, params *protocol.DidCloseTextDocumentParams) error {
func (s *Server) DidClose(ctx context.Context, params *protocol.DidCloseTextDocumentParams) error {
s.setContent(ctx, span.NewURI(params.TextDocument.URI), nil)
return nil
}
func (s *server) Completion(ctx context.Context, params *protocol.CompletionParams) (*protocol.CompletionList, error) {
func (s *Server) Completion(ctx context.Context, params *protocol.CompletionParams) (*protocol.CompletionList, error) {
f, m, err := newColumnMap(ctx, s.view, span.NewURI(params.TextDocument.URI))
if err != nil {
return nil, err
@ -321,11 +329,11 @@ func (s *server) Completion(ctx context.Context, params *protocol.CompletionPara
}, nil
}
func (s *server) CompletionResolve(context.Context, *protocol.CompletionItem) (*protocol.CompletionItem, error) {
func (s *Server) CompletionResolve(context.Context, *protocol.CompletionItem) (*protocol.CompletionItem, error) {
return nil, notImplemented("CompletionResolve")
}
func (s *server) Hover(ctx context.Context, params *protocol.TextDocumentPositionParams) (*protocol.Hover, error) {
func (s *Server) Hover(ctx context.Context, params *protocol.TextDocumentPositionParams) (*protocol.Hover, error) {
f, m, err := newColumnMap(ctx, s.view, span.NewURI(params.TextDocument.URI))
if err != nil {
return nil, err
@ -364,7 +372,7 @@ func (s *server) Hover(ctx context.Context, params *protocol.TextDocumentPositio
}, nil
}
func (s *server) SignatureHelp(ctx context.Context, params *protocol.TextDocumentPositionParams) (*protocol.SignatureHelp, error) {
func (s *Server) SignatureHelp(ctx context.Context, params *protocol.TextDocumentPositionParams) (*protocol.SignatureHelp, error) {
f, m, err := newColumnMap(ctx, s.view, span.NewURI(params.TextDocument.URI))
if err != nil {
return nil, err
@ -384,7 +392,7 @@ func (s *server) SignatureHelp(ctx context.Context, params *protocol.TextDocumen
return toProtocolSignatureHelp(info), nil
}
func (s *server) Definition(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
func (s *Server) Definition(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
f, m, err := newColumnMap(ctx, s.view, span.NewURI(params.TextDocument.URI))
if err != nil {
return nil, err
@ -416,7 +424,7 @@ func (s *server) Definition(ctx context.Context, params *protocol.TextDocumentPo
return []protocol.Location{loc}, nil
}
func (s *server) TypeDefinition(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
func (s *Server) TypeDefinition(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
f, m, err := newColumnMap(ctx, s.view, span.NewURI(params.TextDocument.URI))
if err != nil {
return nil, err
@ -448,15 +456,15 @@ func (s *server) TypeDefinition(ctx context.Context, params *protocol.TextDocume
return []protocol.Location{loc}, nil
}
func (s *server) Implementation(context.Context, *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
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) {
func (s *Server) References(context.Context, *protocol.ReferenceParams) ([]protocol.Location, error) {
return nil, notImplemented("References")
}
func (s *server) DocumentHighlight(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.DocumentHighlight, error) {
func (s *Server) DocumentHighlight(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.DocumentHighlight, error) {
f, m, err := newColumnMap(ctx, s.view, span.NewURI(params.TextDocument.URI))
if err != nil {
return nil, err
@ -476,7 +484,7 @@ func (s *server) DocumentHighlight(ctx context.Context, params *protocol.TextDoc
return toProtocolHighlight(m, spans), nil
}
func (s *server) DocumentSymbol(ctx context.Context, params *protocol.DocumentSymbolParams) ([]protocol.DocumentSymbol, error) {
func (s *Server) DocumentSymbol(ctx context.Context, params *protocol.DocumentSymbolParams) ([]protocol.DocumentSymbol, error) {
f, m, err := newColumnMap(ctx, s.view, span.NewURI(params.TextDocument.URI))
if err != nil {
return nil, err
@ -485,7 +493,7 @@ func (s *server) DocumentSymbol(ctx context.Context, params *protocol.DocumentSy
return toProtocolDocumentSymbols(m, symbols), nil
}
func (s *server) CodeAction(ctx context.Context, params *protocol.CodeActionParams) ([]protocol.CodeAction, error) {
func (s *Server) CodeAction(ctx context.Context, params *protocol.CodeActionParams) ([]protocol.CodeAction, error) {
_, m, err := newColumnMap(ctx, s.view, span.NewURI(params.TextDocument.URI))
if err != nil {
return nil, err
@ -511,36 +519,36 @@ func (s *server) CodeAction(ctx context.Context, params *protocol.CodeActionPara
}, nil
}
func (s *server) CodeLens(context.Context, *protocol.CodeLensParams) ([]protocol.CodeLens, error) {
func (s *Server) CodeLens(context.Context, *protocol.CodeLensParams) ([]protocol.CodeLens, error) {
return nil, nil // ignore
}
func (s *server) CodeLensResolve(context.Context, *protocol.CodeLens) (*protocol.CodeLens, error) {
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) {
func (s *Server) DocumentLink(context.Context, *protocol.DocumentLinkParams) ([]protocol.DocumentLink, error) {
return nil, nil // ignore
}
func (s *server) DocumentLinkResolve(context.Context, *protocol.DocumentLink) (*protocol.DocumentLink, error) {
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) {
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) {
func (s *Server) ColorPresentation(context.Context, *protocol.ColorPresentationParams) ([]protocol.ColorPresentation, error) {
return nil, notImplemented("ColorPresentation")
}
func (s *server) Formatting(ctx context.Context, params *protocol.DocumentFormattingParams) ([]protocol.TextEdit, error) {
func (s *Server) Formatting(ctx context.Context, params *protocol.DocumentFormattingParams) ([]protocol.TextEdit, error) {
spn := span.New(span.URI(params.TextDocument.URI), span.Point{}, span.Point{})
return formatRange(ctx, s.view, spn)
}
func (s *server) RangeFormatting(ctx context.Context, params *protocol.DocumentRangeFormattingParams) ([]protocol.TextEdit, error) {
func (s *Server) RangeFormatting(ctx context.Context, params *protocol.DocumentRangeFormattingParams) ([]protocol.TextEdit, error) {
_, m, err := newColumnMap(ctx, s.view, span.NewURI(params.TextDocument.URI))
if err != nil {
return nil, err
@ -552,26 +560,26 @@ func (s *server) RangeFormatting(ctx context.Context, params *protocol.DocumentR
return formatRange(ctx, s.view, spn)
}
func (s *server) OnTypeFormatting(context.Context, *protocol.DocumentOnTypeFormattingParams) ([]protocol.TextEdit, error) {
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) {
func (s *Server) Rename(context.Context, *protocol.RenameParams) ([]protocol.WorkspaceEdit, error) {
return nil, notImplemented("Rename")
}
func (s *server) FoldingRanges(context.Context, *protocol.FoldingRangeParams) ([]protocol.FoldingRange, error) {
func (s *Server) FoldingRanges(context.Context, *protocol.FoldingRangeParams) ([]protocol.FoldingRange, error) {
return nil, notImplemented("FoldingRanges")
}
func (s *server) Error(err error) {
func (s *Server) Error(err error) {
s.client.LogMessage(context.Background(), &protocol.LogMessageParams{
Type: protocol.Error,
Message: fmt.Sprint(err),
})
}
func (s *server) processConfig(config interface{}) error {
func (s *Server) processConfig(config interface{}) error {
//TODO: we should probably store and process more of the config
c, ok := config.(map[string]interface{})
if !ok {