git.roojs.org Git - roobuilder/blob - src/Palete/LanguageClientVala.vala

   1
   2 namespace Palete {
   3         public class LanguageClientVala : LanguageClient {
   4                 protected bool initialized = false;
   5                 bool sent_shutdown = false;
   6                 uint change_queue_id = 0;
   7
   8
   9                 private bool _closed = false;
  10                 private bool closed {
  11                         get { return this._closed ; }
  12                         set {
  13                                 GLib.debug("closed has been set? to %s" , value ? "TRUE" : "FALSE" );
  14                                 this._closed = value;
  15                         }
  16                 }
  17                 private GLib.SubprocessLauncher launcher = null;
  18                 private GLib.Subprocess? subprocess = null;
  19                 private IOStream? subprocess_stream = null;
  20             public Jsonrpc.Client? jsonrpc_client = null;
  21
  22                 int countdown = 0;
  23                 Gee.ArrayList<JsRender.JsRender> open_files;
  24                 private JsRender.JsRender? _change_queue_file = null;
  25                 int doc_countdown = 0;
  26                 private string change_queue_file_source = "";
  27                 private JsRender.JsRender? doc_queue_file = null;
  28
  29
  30                 JsRender.JsRender? change_queue_file {
  31                         set {
  32                                 this.change_queue_file_source = value == null ? "" : value.toSource();
  33                                 this._change_queue_file = value;
  34                         }
  35                         get {
  36                                 return this._change_queue_file;
  37                         }
  38                 }
  39
  40
  41
  42                 void startServer()
  43                 {
  44                         var exe = GLib.Environment.find_program_in_path( "vala-language-server");
  45                         if (exe == null) {
  46                                 GLib.warning("could not find vala-language-server");
  47
  48                                 return;
  49                         }
  50                         this.initProcess(exe);
  51                 }
  52
  53
  54                 public LanguageClientVala(Project.Project project)
  55                 {
  56                         // extend versions will proably call initialize to start and connect to server.
  57                         base(project);
  58
  59                         if (this.change_queue_id == 0 ) {
  60                                 this.change_queue_id = GLib.Timeout.add(500, () => {
  61                                         this.run_change_queue();
  62                                         this.run_doc_queue();
  63                                         return true;
  64                                 });
  65                         }
  66
  67                         this.startServer();
  68
  69                 }
  70
  71                 void run_change_queue()
  72                 {
  73
  74                         if (this.change_queue_file == null) {
  75                                 return ;
  76                         }
  77                         if (this.countdown < -1) {
  78                                 return;
  79                         }
  80                         if (this.getting_diagnostics) {
  81                                 return;
  82                         }
  83                         this.countdown--;
  84
  85
  86                         if (this.countdown < 0){
  87                                 this.document_change_force.begin(this.change_queue_file,  this.change_queue_file_source, (o, res) => {
  88                                         this.document_change_force.end(res);
  89                                 });
  90                                 this.change_queue_file = null;
  91
  92                         }
  93                         return ;
  94                 }
  95
  96
  97                 void run_doc_queue()
  98                 {
  99
 100                         if (this.doc_queue_file == null) {
 101                                 return ;
 102                         }
 103                         if (this.doc_countdown < -1) {
 104                                 return;
 105                         }
 106                         this.doc_countdown--;
 107
 108                         if (this.doc_countdown < 0){
 109                                 var sendfile = this.doc_queue_file;
 110                                 this.documentSymbols.begin(this.doc_queue_file, (o, res) => {
 111                                         var ret = this.documentSymbols.end(res);
 112                                         sendfile.navigation_tree_updated(ret);
 113                                 });
 114                                 this.doc_queue_file = null;
 115
 116                         }
 117                         return ;
 118                 }
 119                 public bool initProcess(string process_path)
 120                 {
 121                         this.onClose();
 122                         this.log(LanguageClientAction.LAUNCH, process_path);
 123                         GLib.debug("Launching %s", process_path);
 124                         this.launcher = new GLib.SubprocessLauncher (SubprocessFlags.STDIN_PIPE | SubprocessFlags.STDOUT_PIPE);
 125                         var env = GLib.Environ.get();
 126                         env += "G_MESSAGES_DEBUG=all";
 127
 128                         this.launcher.set_environ(env);
 129                         var logpath = GLib.Environment.get_home_dir() + "/.cache/vala-language-server";
 130
 131                         if (!GLib.FileUtils.test(logpath, GLib.FileTest.IS_DIR)) {
 132                                 Posix.mkdir(logpath, 0700);
 133                         }
 134                         // not very reliable..
 135                         //this.launcher.set_stderr_file_path(
 136                         //      logpath + "/" +
 137                         //      (new GLib.DateTime.now_local()).format("%Y-%m-%d") + ".log"
 138                         //);
 139                         //GLib.debug("log lang server to %s", logpath + "/" +
 140                         //      (new GLib.DateTime.now_local()).format("%Y-%m-%d") + ".log");
 141
 142                         try {
 143
 144
 145                                 this.subprocess = launcher.spawnv ({ process_path , "2>" , "/tmp/vala-language-server.log" });
 146
 147                                 this.subprocess.wait_async.begin( null, ( obj,res ) => {
 148                                         try {
 149                                                 this.subprocess.wait_async.end(res);
 150                                         } catch (GLib.Error e) {
 151                                                 this.log(LanguageClientAction.ERROR_START, e.message);
 152                                                 GLib.debug("subprocess startup error %s", e.message);
 153                                         }
 154                                         this.log(LanguageClientAction.EXIT, "process ended");
 155                                         GLib.debug("Subprocess ended %s", process_path);
 156                                         this.onClose();
 157
 158                                 });
 159                                 var input_stream = this.subprocess.get_stdout_pipe ();
 160                                 var output_stream = this.subprocess.get_stdin_pipe ();
 161
 162                                 if (input_stream is GLib.UnixInputStream && output_stream is GLib.UnixOutputStream) {
 163                                         // set nonblocking
 164                                         if (!GLib.Unix.set_fd_nonblocking(((GLib.UnixInputStream)input_stream).fd, true)
 165                                          || !GLib.Unix.set_fd_nonblocking (((GLib.UnixOutputStream)output_stream).fd, true))
 166                                          {
 167                                                 GLib.debug("could not set pipes to nonblocking");
 168                                                 this.onClose();
 169                                             return false;
 170                                     }
 171                             }
 172                             this.subprocess_stream = new GLib.SimpleIOStream (input_stream, output_stream);
 173                         this.accept_io_stream ( this.subprocess_stream);
 174                         } catch (GLib.Error e) {
 175                                 this.log(LanguageClientAction.ERROR_START, e.message);
 176                                 GLib.debug("subprocess startup error %s", e.message);
 177                                 this.onClose();
 178                                 return false;
 179                 }
 180             return true;
 181         }
 182         bool in_close = false;
 183                 public override void client_accepted (Jsonrpc.Client client)
 184                 {
 185                         if (this.jsonrpc_client == null) {
 186                                 this.jsonrpc_client = client;
 187
 188                                 GLib.debug("client accepted connection - calling init server");
 189                                 this.log(LanguageClientAction.ACCEPT, "client accepted");
 190
 191                                 this.jsonrpc_client.notification.connect((method, paramz) => {
 192                                         this.onNotification(method, paramz);
 193                                 });
 194
 195                                 this.jsonrpc_client.failed.connect(() => {
 196                                         this.log(LanguageClientAction.ERROR_RPC, "client failed");
 197                                         GLib.debug("language server server has failed");
 198                                         this.onClose();
 199
 200
 201                                 });
 202
 203                                 this.initialize_server ();
 204                         }
 205
 206
 207                 }
 208
 209
 210                 public override   void  initialize_server()   {
 211                         try {
 212                                 Variant? return_value;
 213                                     this.jsonrpc_client.call (
 214                                     "initialize",
 215                                     this.buildDict (
 216                                         processId: new Variant.int32 ((int32) Posix.getpid ()),
 217                                         rootPath: new Variant.string (this.project.path),
 218                                         rootUri: new Variant.string (File.new_for_path (this.project.path).get_uri ()),
 219                                         capabilities : this.buildDict (
 220                                                 textDocument: this.buildDict (
 221                                                         documentSymbol : this.buildDict (
 222                                                                 hierarchicalDocumentSymbolSupport : new Variant.boolean (true)
 223                                                         )
 224                                                 )
 225                                         )
 226                                     ),
 227                                     null,
 228                                     out return_value
 229                                 );
 230                                 GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 231                                 this.open_files = new Gee.ArrayList<JsRender.JsRender>((a,b) => {
 232                                         return a.path == b.path;
 233                                 });
 234                                 this.initialized = true;
 235                                 this.getting_diagnostics = false;
 236                                 return;
 237                         } catch (GLib.Error e) {
 238                                 GLib.debug ("LS replied with error %s", e.message);
 239                                 this.onClose();
 240                         }
 241
 242                 }
 243                 void onClose()
 244                 {
 245                         if (this.in_close) {
 246                                 return;
 247                         }
 248                         if (this.launcher == null) {
 249                                 return;
 250                         }
 251                         this.getting_diagnostics = false;
 252                         this.in_close = true;
 253                         GLib.debug("onClose called");
 254
 255                         if (this.jsonrpc_client != null) {
 256                                 try {
 257                                         this.jsonrpc_client.close();
 258                                 } catch (GLib.Error e) {
 259                                         GLib.debug("rpc Error close error %s", e.message);
 260                                 }
 261                         }
 262                         if (this.subprocess_stream != null) {
 263                                 try {
 264                                         this.subprocess_stream.close();
 265                                 } catch (GLib.Error e) {
 266                                         GLib.debug("stream Error close  %s", e.message);
 267                                 }
 268                         }
 269                         if (this.subprocess != null) {
 270                                 this.subprocess.force_exit();
 271                         }
 272                         if (this.launcher != null) {
 273                                 this.launcher.close();
 274                         }
 275
 276                         this.launcher = null;
 277                         this.subprocess = null;
 278                         this.jsonrpc_client = null;
 279                         this.closed = true;
 280                         this.in_close = false;
 281                 }
 282
 283                 public async void restartServer()
 284                 {
 285                         this.startServer();
 286
 287                 }
 288
 289                 public bool isReady()
 290                 {
 291                         if (this.closed) {
 292                                 this.log(LanguageClientAction.RESTART,"closed is set - restarting");
 293                                 GLib.debug("server stopped = restarting");
 294                                 this.initialized = false;
 295                                 this.closed = false;
 296                                 GLib.MainLoop loop = new GLib.MainLoop ();
 297                                 this.restartServer.begin ((obj, async_res) => {
 298                                         this.restartServer.end(async_res);
 299                                         loop.quit ();
 300                                 });
 301                                 return false; // can't do an operation yet?
 302
 303                         }
 304
 305                         if (!this.initialized) {
 306                                 GLib.debug("Server has not been initialized");
 307                                 return false;
 308                         }
 309                         if (this.sent_shutdown) {
 310                                 GLib.debug("Server has been started its shutting down process");
 311                                 return false;
 312                         }
 313                         // restart server..
 314
 315
 316
 317                         return true;
 318                 }
 319
 320                 public void onNotification(string method, Variant? return_value)
 321                 {
 322                         switch (method) {
 323                                 case "textDocument/publishDiagnostics":
 324                                         //GLib.debug("got notification %s : %s",  method , Json.to_string (Json.gvariant_serialize (return_value), true));
 325
 326                                         GLib.Idle.add(() => {
 327                                                 this.onDiagnostic(return_value);
 328                                                 return false;
 329                                         });
 330                                         return;
 331                                 default:
 332                                         break;
 333
 334                         }
 335                         GLib.debug("got notification %s : %s",  method , Json.to_string (Json.gvariant_serialize (return_value), true));
 336
 337                 }
 338
 339                 bool getting_diagnostics = false;
 340                 /***
 341
 342                 */
 343                 public void onDiagnostic(Variant? return_value)
 344                 {
 345                         //GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 346                         var dg = Json.gobject_deserialize (typeof (Lsp.Diagnostics), Json.gvariant_serialize (return_value)) as Lsp.Diagnostics;
 347                         GLib.debug("got diag for %s", dg.filename);
 348                         this.log(LanguageClientAction.DIAG, dg.filename);
 349                         if (this.project.path == dg.filename) {
 350                                 this.getting_diagnostics = false;
 351                                 this.log(LanguageClientAction.DIAG_END, "diagnostics done");
 352                                 return;
 353
 354                         }
 355                         this.getting_diagnostics =true;
 356                         var f = this.project.getByPath(dg.filename);
 357                         if (f == null) {
 358                                 //GLib.debug("no file %s", dg.uri);
 359                                 //this.project.updateErrorsforFile(null);
 360                                 return;
 361                         }
 362                         //GLib.debug("got Diagnostics for %s", f.path);
 363                         f.updateErrors( dg.diagnostics );
 364
 365
 366                 }
 367
 368                 public override void document_open (JsRender.JsRender file)
 369                 {
 370                         if (!this.isReady()) {
 371                                 return;
 372                         }
 373                         if (this.open_files.contains(file)) {
 374                                 return;
 375                         }
 376                         this.open_files.add(file);
 377
 378
 379                         GLib.debug ("LS sent open");
 380                         try {
 381                                 this.jsonrpc_client.send_notification (
 382                                         "textDocument/didOpen",
 383                                         this.buildDict (
 384                                                 textDocument : this.buildDict (
 385                                                         uri: new Variant.string (file.to_url()),
 386                                                         languageId :  new Variant.string (file.language_id()),
 387                                                         version :  new GLib.Variant.uint64 ( (uint64) file.version),
 388                                                         text : new Variant.string (file.toSource())
 389                                                 )
 390                                         ),
 391                                         null
 392                                 );
 393                                 this.log(LanguageClientAction.OPEN, file.path);
 394                         } catch( GLib.Error  e) {
 395                                 this.log(LanguageClientAction.ERROR_RPC, e.message);
 396                                 this.onClose();
 397                                 GLib.debug ("LS sent open err %s", e.message);
 398                         }
 399
 400                 }
 401
 402                 public override  async void document_save (JsRender.JsRender file)
 403         {
 404                         if (!this.isReady()) {
 405                                 return;
 406                         }
 407                         // save only really flags the file on the server - to actually force a change update - we need to
 408                         // flag it as changed.
 409                         yield this.document_change_force(file, file.toSource());
 410
 411                         this.change_queue_file = null;
 412                         GLib.debug ("LS send save");
 413                          try {
 414
 415                                 var args = this.buildDict (
 416                                         textDocument : this.buildDict (    ///TextDocumentItem;
 417                                                 uri: new GLib.Variant.string (file.to_url()),
 418                                                 version :  new GLib.Variant.uint64 ( (uint64) file.version)
 419                                         )
 420                                 );
 421
 422                                 //GLib.debug ("textDocument/save send with %s", Json.to_string (Json.gvariant_serialize (args), true));
 423
 424
 425
 426                                   yield this.jsonrpc_client.send_notification_async  (
 427                                         "textDocument/didSave",
 428                                         args,
 429                                         null
 430                                 );
 431                                 this.log(LanguageClientAction.SAVE, file.path);
 432                         } catch( GLib.Error  e) {
 433                                 this.log(LanguageClientAction.ERROR_RPC, e.message);
 434                                 GLib.debug ("LS   save err %s", e.message);
 435                                 this.onClose();
 436                         }
 437
 438
 439         }
 440                 public override  void document_close (JsRender.JsRender file)
 441         {
 442                         if (!this.isReady()) {
 443                                 return;
 444                         }
 445                         this.change_queue_file = null;
 446
 447                         if (this.open_files.contains(file)) {
 448                                 this.open_files.remove(file);
 449                         }
 450                         this.log(LanguageClientAction.CLOSE, file.path);
 451                         GLib.debug ("LS send close");
 452                         try {
 453                                   this.jsonrpc_client.send_notification  (
 454                                         "textDocument/didChange",
 455                                         this.buildDict (
 456                                                 textDocument : this.buildDict (    ///TextDocumentItem;
 457                                                         uri: new GLib.Variant.string (file.to_url())
 458
 459                                                 )
 460                                         ),
 461                                         null
 462                                 );
 463                         } catch( GLib.Error  e) {
 464                                 this.log(LanguageClientAction.ERROR_RPC, e.message);
 465                                 GLib.debug ("LS close err %s", e.message);
 466                                 this.onClose();
 467                         }
 468
 469
 470         }
 471
 472
 473                 public override void document_change (JsRender.JsRender file )
 474                 {
 475                         if (this.change_queue_file != null && this.change_queue_file.path != file.path) {
 476                                 this.document_change_force.begin(this.change_queue_file, this.change_queue_file_source, (o, res) => {
 477                                         this.document_change_force.end(res);
 478                                 });
 479                         }
 480
 481                         this.countdown = 2;
 482                         this.change_queue_file = file;
 483
 484
 485
 486                 }
 487
 488
 489                 public override async void document_change_force (JsRender.JsRender file, string contents)
 490         {
 491
 492
 493                         if (!this.isReady()) {
 494                                 return;
 495                         }
 496                         this.countdown = -2; // not really relivant..
 497                         this.change_queue_file = null; // this is more important..
 498
 499                     if (!this.open_files.contains(file)) {
 500                                  this.document_open(file);
 501                         }
 502
 503                         GLib.debug ("LS send change %s rev %d", file.path, file.version);
 504                         var ar = new Json.Array();
 505                         var obj = new Json.Object();
 506                         obj.set_string_member("text", contents);
 507                         ar.add_object_element(obj);
 508                         var node = new Json.Node(Json.NodeType.ARRAY);
 509                         node.set_array(ar);
 510                         this.log(LanguageClientAction.CHANGE, file.path);
 511                          try {
 512                                 yield this.jsonrpc_client.send_notification_async (
 513                                         "textDocument/didChange",
 514                                         this.buildDict (
 515                                                 textDocument : this.buildDict (    ///TextDocumentItem;
 516                                                         uri: new GLib.Variant.string (file.to_url()),
 517                                                         version :  new GLib.Variant.uint64 ( (uint64) file.version)
 518                                                 ),
 519                                                 contentChanges : Json.gvariant_deserialize (node, null)
 520
 521                                         ),
 522                                         null
 523                                 );
 524                         } catch( GLib.Error  e) {
 525                                 this.log(LanguageClientAction.ERROR_RPC, e.message);
 526                                 GLib.debug ("LS change err %s", e.message);
 527                                 this.onClose();
 528                         }
 529
 530
 531         }
 532         // called by close window (on last window)...
 533                 public override  void exit () throws GLib.Error
 534                 {
 535                         if (!this.isReady()) {
 536
 537                                 return;
 538                         }
 539                         this.log(LanguageClientAction.TERM, "SEND exit");
 540
 541                           this.jsonrpc_client.send_notification (
 542                                 "exit",
 543                                 null,
 544                                 null
 545                         );
 546                         this.onClose();
 547
 548                 }
 549                 // not used currently..
 550                 public override async void shutdown () throws GLib.Error
 551                 {
 552                         if (!this.isReady()) {
 553                                 return;
 554                         }
 555                         this.log(LanguageClientAction.TERM, "SEND shutodwn");
 556                         this.sent_shutdown  = true;
 557                         Variant? return_value;
 558                         yield this.jsonrpc_client.call_async (
 559                                 "shutdown",
 560                                 null,
 561                                 null,
 562                                 out return_value
 563                         );
 564                         GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 565                 }
 566                 //public async  ??/symbol (string symbol) throws GLib.Error {
 567
 568                 // and now for the important styff..
 569
 570                 /*
 571
 572                 @triggerType 1 = typing or ctl-spac, 2 = tiggercharactres?  3= inside completion?
 573                 */
 574                  public override async Lsp.CompletionList?  completion(JsRender.JsRender file, int line, int offset , int triggerType = 1) throws GLib.Error
 575                  {
 576                         /* partial_result_token ,  work_done_token   context = null) */
 577                         GLib.debug("%s get completion %s @ %d:%d", this.get_type().name(),  file.relpath, line, offset);
 578
 579                         var ret = new Lsp.CompletionList();
 580
 581                     if (!this.isReady()) {
 582                         GLib.debug("completion - language server not ready");
 583                                 return ret;
 584                         }
 585                         // make sure completion has the latest info..
 586                         //if (this.change_queue_file != null && this.change_queue_file.path != file.path) {
 587                         //      this.document_change_real(this.change_queue_file, this.change_queue_file_source);
 588                         //      this.change_queue_file != null;
 589                         //}
 590                         this.log(LanguageClientAction.COMPLETE, "SEND complete  %s @ %d:%d".printf(file.relpath, line, offset) );
 591
 592                         Variant? return_value;
 593
 594                         var args = this.buildDict (
 595                                         context : this.buildDict (    ///CompletionContext;
 596                                                 triggerKind: new GLib.Variant.int32 (triggerType)
 597                                         //      triggerCharacter :  new GLib.Variant.string ("")
 598                                         ),
 599                                         textDocument : this.buildDict (    ///TextDocumentItem;
 600                                                 uri: new GLib.Variant.string (file.to_url()),
 601                                                 version :  new GLib.Variant.uint64 ( (uint64) file.version)
 602                                         ),
 603                                         position :  this.buildDict (
 604                                                 line :  new GLib.Variant.uint64 ( (uint) line) ,
 605                                                 character :  new GLib.Variant.uint64 ( uint.max(0,  (offset -1)))
 606                                         )
 607                                 );
 608
 609                         GLib.debug ("textDocument/completion send with %s", Json.to_string (Json.gvariant_serialize (args), true));
 610
 611                         yield this.jsonrpc_client.call_async (
 612                                 "textDocument/completion",
 613                                 args,
 614                                 null,
 615                                 out return_value
 616                         );
 617
 618
 619                         //GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 620                         var json = Json.gvariant_serialize (return_value);
 621
 622
 623                         if (json.get_node_type() == Json.NodeType.OBJECT) {
 624                                 ret = Json.gobject_deserialize (typeof (Lsp.CompletionList), json) as Lsp.CompletionList;
 625                                 this.log(LanguageClientAction.COMPLETE_REPLY, "GOT complete  %d items".printf(ret.items.size) );
 626                                 GLib.debug ("LS replied with Object");
 627                                 return ret;
 628                         }
 629
 630                         if (json.get_node_type() != Json.NodeType.ARRAY) {
 631                                 GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 632                                 this.log(LanguageClientAction.ERROR_REPLY, "GOT something else??");
 633                                 return ret;
 634
 635                         }
 636                         var ar = json.get_array();
 637
 638                         for(var i = 0; i < ar.get_length(); i++ ) {
 639                                 var add= Json.gobject_deserialize ( typeof (Lsp.CompletionItem),  ar.get_element(i)) as Lsp.CompletionItem;
 640                                 ret.items.add( add);
 641
 642                         }
 643                         this.log(LanguageClientAction.COMPLETE_REPLY, "GOT array %d items".printf(ret.items.size) );
 644                         GLib.debug ("LS replied with Array");
 645                         return ret;
 646
 647
 648                 }
 649
 650
 651                 //CompletionListInfo.itmems.parse_varient  or CompletionListInfo.parsevarient
 652                 public override async  Lsp.Hover hover (JsRender.JsRender file, int line, int offset) throws GLib.Error
 653                  {
 654                         /* partial_result_token ,  work_done_token   context = null) */
 655                         GLib.debug("get hover %s %d %d", file.relpath, (int)line, (int)offset);
 656                         var ret = new Lsp.Hover();
 657                         //ret = null;
 658                     if (!this.isReady()) {
 659                                 return ret;
 660                         }
 661                         Variant? return_value;
 662                         yield this.jsonrpc_client.call_async (
 663                                 "textDocument/hover",
 664                                 this.buildDict (
 665
 666                                         textDocument : this.buildDict (    ///TextDocumentItem;
 667                                                 uri: new GLib.Variant.string (file.to_url()),
 668                                                 version :  new GLib.Variant.uint64 ( (uint64) file.version)
 669                                         ),
 670                                         position :  this.buildDict (
 671                                                 line :  new GLib.Variant.uint64 ( (uint) line) ,
 672                                                 character :  new GLib.Variant.uint64 ( uint.max(0,  (offset -1)))
 673                                         )
 674
 675                                 ),
 676                                 null,
 677                                 out return_value
 678                         );
 679                         GLib.debug ("LS hover replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 680                         if (return_value == null) {
 681                                 return ret;
 682                         }
 683
 684                         var json = Json.gvariant_serialize (return_value);
 685                         if (json.get_node_type() != Json.NodeType.OBJECT) {
 686                                 return ret;
 687                         }
 688
 689
 690                         ret =  Json.gobject_deserialize ( typeof (Lsp.Hover),  json) as Lsp.Hover;
 691
 692                         return ret;
 693
 694
 695
 696                 }
 697
 698                 public override void queueDocumentSymbols (JsRender.JsRender file)
 699                 {
 700                         if (this.doc_queue_file != null && this.doc_queue_file.path != file.path) {
 701                                 var sendfile = this.doc_queue_file;
 702                                 this.documentSymbols.begin(this.doc_queue_file, (o, res) => {
 703                                         var ret = documentSymbols.end(res);
 704                                         sendfile.navigation_tree_updated(ret);
 705                                 });
 706                         }
 707
 708                         this.doc_countdown = 2;
 709                         this.doc_queue_file = file;
 710                 }
 711
 712
 713                 public override async Gee.ArrayList<Lsp.DocumentSymbol> documentSymbols (JsRender.JsRender file) throws GLib.Error {
 714                         /* partial_result_token ,  work_done_token   context = null) */
 715                         GLib.debug("get documentSymbols %s", file.relpath);
 716                         var ret = new Gee.ArrayList<Lsp.DocumentSymbol>();
 717                         //ret = null;
 718                     if (!this.isReady()) {
 719                                 return ret;
 720                         }
 721                         Variant? return_value;
 722                         yield this.jsonrpc_client.call_async (
 723                                 "textDocument/documentSymbol",
 724                                 this.buildDict (
 725
 726                                         textDocument : this.buildDict (    ///TextDocumentItem;
 727                                                 uri: new GLib.Variant.string (file.to_url()),
 728                                                 version :  new GLib.Variant.uint64 ( (uint64) file.version)
 729                                         )
 730
 731                                 ),
 732                                 null,
 733                                 out return_value
 734                         );
 735
 736
 737                         //GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 738                         var json = Json.gvariant_serialize (return_value);
 739
 740
 741
 742                         var ar = json.get_array();
 743                         GLib.debug ("LS replied with %D items", ar.get_length());
 744                         for(var i = 0; i < ar.get_length(); i++ ) {
 745                                 var add= Json.gobject_deserialize ( typeof (Lsp.DocumentSymbol),  ar.get_element(i)) as Lsp.DocumentSymbol;
 746                                 ret.add( add);
 747
 748                         }
 749                         return ret ;
 750
 751
 752                 }
 753                 public override async Gee.ArrayList<Lsp.SignatureInformation> signatureHelp (JsRender.JsRender file, int line, int offset) throws GLib.Error {
 754                         /* partial_result_token ,  work_done_token   context = null) */
 755                         GLib.debug("get signatureHelp %s, %d, %d", file.relpath, line, offset);
 756                         var ret = new Gee.ArrayList<Lsp.SignatureInformation>();
 757                         //ret = null;
 758                     if (!this.isReady()) {
 759                                 return ret;
 760                         }
 761                         Variant? return_value;
 762                                 yield this.jsonrpc_client.call_async (
 763                                 "textDocument/signatureHelp",
 764                                 this.buildDict (
 765
 766                                         textDocument : this.buildDict (    ///TextDocumentItem;
 767                                                 uri: new GLib.Variant.string (file.to_url())
 768                                         ),
 769                                         position :  this.buildDict (
 770                                                 line :  new GLib.Variant.uint64 ( (uint) line) ,
 771                                                 character :  new GLib.Variant.uint64 ( uint.max(0,  (offset -1)))
 772                                         )
 773
 774                                 ),
 775                                 null,
 776                                 out return_value
 777                         );
 778
 779
 780                         GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 781                         var json = Json.gvariant_serialize (return_value);
 782                         if (json.get_node_type() != Json.NodeType.ARRAY) {
 783                                 return ret;
 784                         }
 785
 786
 787
 788                         var ar = json.get_array();
 789                         GLib.debug ("LS replied with %D items", ar.get_length());
 790                         for(var i = 0; i < ar.get_length(); i++ ) {
 791                                 var add= Json.gobject_deserialize ( typeof (Lsp.SignatureInformation),  ar.get_element(i)) as Lsp.SignatureInformation;
 792                                 ret.add( add);
 793
 794                         }
 795                         return ret ;
 796
 797
 798                 }
 799
 800         }
 801
 802 }