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go/internal/lsp/server.go
Suzy Mueller 4adf7a708c internal/lsp: add identifier renaming
This change provides support to rename identifiers within a single
package.

The renaming is performed by finding all references to an identifier,
and then creating text edits to replace the existing text with the
new identifier.

Editing an import spec is not supported.

Fixes #27571

Change-Id: I0881b65a1b3c72d7c53d7d6ab1ea386160dc00fb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/182585
Run-TryBot: Suzy Mueller <suzmue@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
2019-06-19 21:54:42 +00:00

269 lines
9.0 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"
"fmt"
"net"
"sync"
"golang.org/x/tools/internal/jsonrpc2"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/lsp/xlog"
"golang.org/x/tools/internal/span"
)
// NewClientServer
func NewClientServer(cache source.Cache, client protocol.Client) *Server {
return &Server{
client: client,
session: cache.NewSession(xlog.New(protocol.NewLogger(client))),
}
}
// NewServer starts an LSP server on the supplied stream, and waits until the
// stream is closed.
func NewServer(cache source.Cache, stream jsonrpc2.Stream) *Server {
s := &Server{}
var log xlog.Logger
s.Conn, s.client, log = protocol.NewServer(stream, s)
s.session = cache.NewSession(log)
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, cache source.Cache, port int, h func(s *Server)) error {
return RunServerOnAddress(ctx, cache, 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, cache source.Cache, addr string, h func(s *Server)) error {
ln, err := net.Listen("tcp", addr)
if err != nil {
return err
}
for {
conn, err := ln.Accept()
if err != nil {
return err
}
h(NewServer(cache, jsonrpc2.NewHeaderStream(conn, conn)))
}
}
func (s *Server) Run(ctx context.Context) error {
return s.Conn.Run(ctx)
}
type Server struct {
Conn *jsonrpc2.Conn
client protocol.Client
initializedMu sync.Mutex
isInitialized bool // set once the server has received "initialize" request
// Configurations.
// TODO(rstambler): Separate these into their own struct?
usePlaceholders bool
noDocsOnHover bool
insertTextFormat protocol.InsertTextFormat
configurationSupported bool
dynamicConfigurationSupported bool
preferredContentFormat protocol.MarkupKind
disabledAnalyses map[string]struct{}
textDocumentSyncKind protocol.TextDocumentSyncKind
session source.Session
// undelivered is a cache of any diagnostics that the server
// failed to deliver for some reason.
undeliveredMu sync.Mutex
undelivered map[span.URI][]source.Diagnostic
}
// General
func (s *Server) Initialize(ctx context.Context, params *protocol.InitializeParams) (*protocol.InitializeResult, error) {
return s.initialize(ctx, params)
}
func (s *Server) Initialized(ctx context.Context, params *protocol.InitializedParams) error {
return s.initialized(ctx, params)
}
func (s *Server) Shutdown(ctx context.Context) error {
return s.shutdown(ctx)
}
func (s *Server) Exit(ctx context.Context) error {
return s.exit(ctx)
}
// Workspace
func (s *Server) DidChangeWorkspaceFolders(ctx context.Context, params *protocol.DidChangeWorkspaceFoldersParams) error {
return s.changeFolders(ctx, params.Event)
}
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) Symbol(context.Context, *protocol.WorkspaceSymbolParams) ([]protocol.SymbolInformation, error) {
return nil, notImplemented("Symbol")
}
func (s *Server) ExecuteCommand(context.Context, *protocol.ExecuteCommandParams) (interface{}, error) {
return nil, notImplemented("ExecuteCommand")
}
// Text Synchronization
func (s *Server) DidOpen(ctx context.Context, params *protocol.DidOpenTextDocumentParams) error {
return s.didOpen(ctx, params)
}
func (s *Server) DidChange(ctx context.Context, params *protocol.DidChangeTextDocumentParams) error {
return s.didChange(ctx, params)
}
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(ctx context.Context, params *protocol.DidSaveTextDocumentParams) error {
return s.didSave(ctx, params)
}
func (s *Server) DidClose(ctx context.Context, params *protocol.DidCloseTextDocumentParams) error {
return s.didClose(ctx, params)
}
// Language Features
func (s *Server) Completion(ctx context.Context, params *protocol.CompletionParams) (*protocol.CompletionList, error) {
return s.completion(ctx, params)
}
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) {
return s.hover(ctx, params)
}
func (s *Server) SignatureHelp(ctx context.Context, params *protocol.TextDocumentPositionParams) (*protocol.SignatureHelp, error) {
return s.signatureHelp(ctx, params)
}
func (s *Server) Definition(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
return s.definition(ctx, params)
}
func (s *Server) TypeDefinition(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
return s.typeDefinition(ctx, params)
}
func (s *Server) Implementation(context.Context, *protocol.TextDocumentPositionParams) ([]protocol.Location, error) {
return nil, notImplemented("Implementation")
}
func (s *Server) References(ctx context.Context, params *protocol.ReferenceParams) ([]protocol.Location, error) {
return s.references(ctx, params)
}
func (s *Server) DocumentHighlight(ctx context.Context, params *protocol.TextDocumentPositionParams) ([]protocol.DocumentHighlight, error) {
return s.documentHighlight(ctx, params)
}
func (s *Server) DocumentSymbol(ctx context.Context, params *protocol.DocumentSymbolParams) ([]protocol.DocumentSymbol, error) {
return s.documentSymbol(ctx, params)
}
func (s *Server) CodeAction(ctx context.Context, params *protocol.CodeActionParams) ([]protocol.CodeAction, error) {
return s.codeAction(ctx, params)
}
func (s *Server) CodeLens(context.Context, *protocol.CodeLensParams) ([]protocol.CodeLens, error) {
return nil, nil // ignore
}
func (s *Server) ResolveCodeLens(context.Context, *protocol.CodeLens) (*protocol.CodeLens, error) {
return nil, notImplemented("ResolveCodeLens")
}
func (s *Server) DocumentLink(ctx context.Context, params *protocol.DocumentLinkParams) ([]protocol.DocumentLink, error) {
return s.documentLink(ctx, params)
}
func (s *Server) ResolveDocumentLink(context.Context, *protocol.DocumentLink) (*protocol.DocumentLink, error) {
return nil, notImplemented("ResolveDocumentLink")
}
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(ctx context.Context, params *protocol.DocumentFormattingParams) ([]protocol.TextEdit, error) {
return s.formatting(ctx, params)
}
func (s *Server) RangeFormatting(ctx context.Context, params *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(ctx context.Context, params *protocol.RenameParams) (*protocol.WorkspaceEdit, error) {
return s.rename(ctx, params)
}
func (s *Server) Declaration(context.Context, *protocol.TextDocumentPositionParams) ([]protocol.DeclarationLink, error) {
return nil, notImplemented("Declaration")
}
func (s *Server) FoldingRange(context.Context, *protocol.FoldingRangeParams) ([]protocol.FoldingRange, error) {
return nil, notImplemented("FoldingRange")
}
func (s *Server) LogTraceNotification(context.Context, *protocol.LogTraceParams) error {
return notImplemented("LogtraceNotification")
}
func (s *Server) PrepareRename(context.Context, *protocol.TextDocumentPositionParams) (*protocol.Range, error) {
return nil, notImplemented("PrepareRename")
}
func (s *Server) Resolve(context.Context, *protocol.CompletionItem) (*protocol.CompletionItem, error) {
return nil, notImplemented("Resolve")
}
func (s *Server) SetTraceNotification(context.Context, *protocol.SetTraceParams) error {
return notImplemented("SetTraceNotification")
}
func notImplemented(method string) *jsonrpc2.Error {
return jsonrpc2.NewErrorf(jsonrpc2.CodeMethodNotFound, "method %q not yet implemented", method)
}