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

   1
   2 namespace Palete {
   3         public class LanguageClientVala : LanguageClient {
   4                 int countdown = 0;
   5                 protected bool initialized = false;
   6                 bool sent_shutdown = false;
   7                 uint change_queue_id = 0;
   8
   9
  10                 private bool _closed = false;
  11                 private bool closed {
  12                         get { return this._closed ; }
  13                         set {
  14                                 GLib.debug("closed has been set? to %s" , value ? "TRUE" : "FALSE" );
  15                                 this._closed = value;
  16                         }
  17                 }
  18                 private GLib.SubprocessLauncher launcher = null;
  19                 private GLib.Subprocess? subprocess = null;
  20                 private IOStream? subprocess_stream = null;
  21             public Jsonrpc.Client? jsonrpc_client = null;
  22
  23                 Gee.ArrayList<JsRender.JsRender> open_files;
  24                 private JsRender.JsRender? _change_queue_file = null;
  25                 private string change_queue_file_source = "";
  26
  27                 JsRender.JsRender? change_queue_file {
  28                         set {
  29                                 this.change_queue_file_source = value == null ? "" : value.toSource();
  30                                 this._change_queue_file = value;
  31                         }
  32                         get {
  33                                 return this._change_queue_file;
  34                         }
  35                 }
  36                 void startServer()
  37                 {
  38                         var exe = GLib.Environment.find_program_in_path( "vala-language-server");
  39                         if (exe == null) {
  40                                 GLib.warning("could not find vala-language-server");
  41
  42                                 return;
  43                         }
  44                         this.initProcess(exe);
  45                 }
  46
  47
  48                 public LanguageClientVala(Project.Project project)
  49                 {
  50                         // extend versions will proably call initialize to start and connect to server.
  51                         base(project);
  52
  53                         this.change_queue_id = GLib.Timeout.add_seconds(1, () => {
  54                                 if (this.change_queue_file == null) {
  55                                         return true;
  56                                 }
  57                                 this.countdown--;
  58                                 if (this.countdown < 0){
  59                                         this.document_change_force.begin(this.change_queue_file,  this.change_queue_file_source, (o, res) => {
  60                                                 this.document_change_force.end(res);
  61                                         });
  62                                         this.change_queue_file = null;
  63
  64                                 }
  65                                 return true;
  66                         });
  67                         this.startServer();
  68
  69                 }
  70
  71
  72                 public bool initProcess(string process_path)
  73                 {
  74                         this.onClose();
  75                         this.log(LanguageClientAction.LAUNCH, process_path);
  76                         GLib.debug("Launching %s", process_path);
  77                         this.launcher = new GLib.SubprocessLauncher (SubprocessFlags.STDIN_PIPE | SubprocessFlags.STDOUT_PIPE);
  78                         this.launcher.set_environ(GLib.Environ.get());
  79                         try {
  80
  81
  82                                 this.subprocess = launcher.spawnv ({ process_path });
  83
  84                                 this.subprocess.wait_async.begin( null, ( obj,res ) => {
  85                                         try {
  86                                                 this.subprocess.wait_async.end(res);
  87                                         } catch (GLib.Error e) {
  88                                                 this.log(LanguageClientAction.ERROR_START, e.message);
  89                                                 GLib.debug("subprocess startup error %s", e.message);
  90                                         }
  91                                         this.log(LanguageClientAction.EXIT, "process ended");
  92                                         GLib.debug("Subprocess ended %s", process_path);
  93                                         this.onClose();
  94
  95                                 });
  96                                 var input_stream = this.subprocess.get_stdout_pipe ();
  97                                 var output_stream = this.subprocess.get_stdin_pipe ();
  98
  99                                 if (input_stream is GLib.UnixInputStream && output_stream is GLib.UnixOutputStream) {
 100                                         // set nonblocking
 101                                         if (!GLib.Unix.set_fd_nonblocking(((GLib.UnixInputStream)input_stream).fd, true)
 102                                          || !GLib.Unix.set_fd_nonblocking (((GLib.UnixOutputStream)output_stream).fd, true))
 103                                          {
 104                                                 GLib.debug("could not set pipes to nonblocking");
 105                                                 this.onClose();
 106                                             return false;
 107                                     }
 108                             }
 109                             this.subprocess_stream = new GLib.SimpleIOStream (input_stream, output_stream);
 110                         this.accept_io_stream ( this.subprocess_stream);
 111                         } catch (GLib.Error e) {
 112                                 this.log(LanguageClientAction.ERROR_START, e.message);
 113                                 GLib.debug("subprocess startup error %s", e.message);
 114                                 this.onClose();
 115                                 return false;
 116                 }
 117             return true;
 118         }
 119         bool in_close = false;
 120                 public override void client_accepted (Jsonrpc.Client client)
 121                 {
 122                         if (this.jsonrpc_client == null) {
 123                                 this.jsonrpc_client = client;
 124
 125                                 GLib.debug("client accepted connection - calling init server");
 126                                 this.log(LanguageClientAction.ACCEPT, "client accepted");
 127
 128                                 this.jsonrpc_client.notification.connect((method, paramz) => {
 129                                         this.onNotification(method, paramz);
 130                                 });
 131
 132                                 this.jsonrpc_client.failed.connect(() => {
 133                                         this.log(LanguageClientAction.ERROR_RPC, "client failed");
 134                                         this.onClose();
 135
 136                                         GLib.debug("language server server has failed");
 137                                 });
 138
 139                                 this.initialize_server ();
 140                         }
 141
 142
 143                 }
 144
 145
 146                 public override   void  initialize_server()   {
 147                         try {
 148                                 Variant? return_value;
 149                                     this.jsonrpc_client.call (
 150                                     "initialize",
 151                                     this.buildDict (
 152                                         processId: new Variant.int32 ((int32) Posix.getpid ()),
 153                                         rootPath: new Variant.string (this.project.path),
 154                                         rootUri: new Variant.string (File.new_for_path (this.project.path).get_uri ())
 155                                     ),
 156                                     null,
 157                                     out return_value
 158                                 );
 159                                 GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 160                                 this.open_files = new Gee.ArrayList<JsRender.JsRender>((a,b) => {
 161                                         return a.path == b.path;
 162                                 });
 163                                 this.initialized = true;
 164                                 return;
 165                         } catch (GLib.Error e) {
 166                                 GLib.debug ("LS replied with error %s", e.message);
 167                                 this.onClose();
 168                         }
 169
 170                 }
 171                 void onClose()
 172                 {
 173                         if (this.in_close) {
 174                                 return;
 175                         }
 176                         if (this.launcher == null) {
 177                                 return;
 178                         }
 179                         this.in_close = true;
 180                         GLib.debug("onClose called");
 181
 182                         if (this.jsonrpc_client != null) {
 183                                 try {
 184                                         this.jsonrpc_client.close();
 185                                 } catch (GLib.Error e) {
 186                                         GLib.debug("rpc Error close error %s", e.message);
 187                                 }
 188                         }
 189                         if (this.subprocess_stream != null) {
 190                                 try {
 191                                         this.subprocess_stream.close();
 192                                 } catch (GLib.Error e) {
 193                                         GLib.debug("stream Error close  %s", e.message);
 194                                 }
 195                         }
 196                         if (this.subprocess != null) {
 197                                 this.subprocess.force_exit();
 198                         }
 199                         if (this.launcher != null) {
 200                                 this.launcher.close();
 201                         }
 202
 203                         this.launcher = null;
 204                         this.subprocess = null;
 205                         this.jsonrpc_client = null;
 206                         this.closed = true;
 207                         this.in_close = false;
 208                 }
 209
 210                 public async void restartServer()
 211                 {
 212                         this.startServer();
 213
 214                 }
 215
 216                 public bool isReady()
 217                 {
 218                         if (this.closed) {
 219                                 this.log(LanguageClientAction.RESTART,"closed is set - restarting");
 220                                 GLib.debug("server stopped = restarting");
 221                                 this.initialized = false;
 222                                 this.closed = false;
 223                                 GLib.MainLoop loop = new GLib.MainLoop ();
 224                                 this.restartServer.begin ((obj, async_res) => {
 225                                         this.restartServer.end(async_res);
 226                                         loop.quit ();
 227                                 });
 228                                 return false; // can't do an operation yet?
 229
 230                         }
 231
 232                         if (!this.initialized) {
 233                                 GLib.debug("Server has not been initialized");
 234                                 return false;
 235                         }
 236                         if (this.sent_shutdown) {
 237                                 GLib.debug("Server has been started its shutting down process");
 238                                 return false;
 239                         }
 240                         // restart server..
 241
 242
 243
 244                         return true;
 245                 }
 246
 247                 public void onNotification(string method, Variant? return_value)
 248                 {
 249                         switch (method) {
 250                                 case "textDocument/publishDiagnostics":
 251                                         //GLib.debug("got notification %s : %s",  method , Json.to_string (Json.gvariant_serialize (return_value), true));
 252                                         this.onDiagnostic(return_value);
 253                                         return;
 254                                 default:
 255                                         break;
 256
 257                         }
 258                         GLib.debug("got notification %s : %s",  method , Json.to_string (Json.gvariant_serialize (return_value), true));
 259
 260                 }
 261
 262                 /***
 263
 264                 */
 265                 public void onDiagnostic(Variant? return_value)
 266                 {
 267                         //GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 268                         var dg = Json.gobject_deserialize (typeof (Lsp.Diagnostics), Json.gvariant_serialize (return_value)) as Lsp.Diagnostics;
 269                         this.log(LanguageClientAction.DIAG, dg.filename);
 270                         var f = this.project.getByPath(dg.filename);
 271                         if (f == null) {
 272                                 //GLib.debug("no file %s", dg.uri);
 273                                 //this.project.updateErrorsforFile(null);
 274                                 return;
 275                         }
 276                         //GLib.debug("got Diagnostics for %s", f.path);
 277                         f.updateErrors( dg.diagnostics );
 278
 279
 280                 }
 281
 282                 public override void document_open (JsRender.JsRender file)
 283                 {
 284                         if (!this.isReady()) {
 285                                 return;
 286                         }
 287                         if (this.open_files.contains(file)) {
 288                                 return;
 289                         }
 290                         this.open_files.add(file);
 291
 292
 293                         GLib.debug ("LS sent open");
 294                         try {
 295                                 this.jsonrpc_client.send_notification (
 296                                         "textDocument/didOpen",
 297                                         this.buildDict (
 298                                                 textDocument : this.buildDict (
 299                                                         uri: new Variant.string (file.to_url()),
 300                                                         languageId :  new Variant.string (file.language_id()),
 301                                                         version :  new GLib.Variant.uint64 ( (uint64) file.version),
 302                                                         text : new Variant.string (file.toSource())
 303                                                 )
 304                                         ),
 305                                         null
 306                                 );
 307                                 this.log(LanguageClientAction.OPEN, file.path);
 308                         } catch( GLib.Error  e) {
 309                                 this.log(LanguageClientAction.ERROR_RPC, e.message);
 310                                 this.onClose();
 311                                 GLib.debug ("LS sent open err %s", e.message);
 312                         }
 313
 314                 }
 315
 316                 public override  async void document_save (JsRender.JsRender file)
 317         {
 318                         if (!this.isReady()) {
 319                                 return;
 320                         }
 321                         // save only really flags the file on the server - to actually force a change update - we need to
 322                         // flag it as changed.
 323                         yield this.document_change_force(file, file.toSource());
 324
 325                         this.change_queue_file = null;
 326                         GLib.debug ("LS send save");
 327                          try {
 328
 329                                 var args = this.buildDict (
 330                                         textDocument : this.buildDict (    ///TextDocumentItem;
 331                                                 uri: new GLib.Variant.string (file.to_url()),
 332                                                 version :  new GLib.Variant.uint64 ( (uint64) file.version)
 333                                         )
 334                                 );
 335
 336                                 //GLib.debug ("textDocument/save send with %s", Json.to_string (Json.gvariant_serialize (args), true));
 337
 338
 339
 340                                   yield this.jsonrpc_client.send_notification_async  (
 341                                         "textDocument/didSave",
 342                                         args,
 343                                         null
 344                                 );
 345                                 this.log(LanguageClientAction.SAVE, file.path);
 346                         } catch( GLib.Error  e) {
 347                                 this.log(LanguageClientAction.ERROR_RPC, e.message);
 348                                 GLib.debug ("LS   save err %s", e.message);
 349                                 this.onClose();
 350                         }
 351
 352
 353         }
 354                 public override  void document_close (JsRender.JsRender file)
 355         {
 356                         if (!this.isReady()) {
 357                                 return;
 358                         }
 359                         this.change_queue_file = null;
 360
 361                         if (this.open_files.contains(file)) {
 362                                 this.open_files.remove(file);
 363                         }
 364                         this.log(LanguageClientAction.CLOSE, file.path);
 365                         GLib.debug ("LS send close");
 366                         try {
 367                                   this.jsonrpc_client.send_notification  (
 368                                         "textDocument/didChange",
 369                                         this.buildDict (
 370                                                 textDocument : this.buildDict (    ///TextDocumentItem;
 371                                                         uri: new GLib.Variant.string (file.to_url())
 372
 373                                                 )
 374                                         ),
 375                                         null
 376                                 );
 377                         } catch( GLib.Error  e) {
 378                                 this.log(LanguageClientAction.ERROR_RPC, e.message);
 379                                 GLib.debug ("LS close err %s", e.message);
 380                                 this.onClose();
 381                         }
 382
 383
 384         }
 385
 386
 387                 public override void document_change (JsRender.JsRender file )
 388                 {
 389                         if (this.change_queue_file != null && this.change_queue_file.path != file.path) {
 390                                 this.document_change_force.begin(this.change_queue_file, this.change_queue_file_source, (o, res) => {
 391                                         this.document_change_force.end(res);
 392                                 });
 393                         }
 394
 395                         this.countdown = 3;
 396                         this.change_queue_file = file;
 397
 398
 399
 400                 }
 401
 402
 403                 public override async void document_change_force (JsRender.JsRender file, string contents)
 404         {
 405                         if (!this.isReady()) {
 406                                 return;
 407                         }
 408                    if (!this.open_files.contains(file)) {
 409                                  this.document_open(file);
 410                         }
 411
 412                         GLib.debug ("LS send change %s rev %d", file.path, file.version);
 413                         var ar = new Json.Array();
 414                         var obj = new Json.Object();
 415                         obj.set_string_member("text", contents);
 416                         ar.add_object_element(obj);
 417                         var node = new Json.Node(Json.NodeType.ARRAY);
 418                         node.set_array(ar);
 419                         this.log(LanguageClientAction.CHANGE, file.path);
 420                          try {
 421                                 yield this.jsonrpc_client.send_notification_async (
 422                                         "textDocument/didChange",
 423                                         this.buildDict (
 424                                                 textDocument : this.buildDict (    ///TextDocumentItem;
 425                                                         uri: new GLib.Variant.string (file.to_url()),
 426                                                         version :  new GLib.Variant.uint64 ( (uint64) file.version)
 427                                                 ),
 428                                                 contentChanges : Json.gvariant_deserialize (node, null)
 429
 430                                         ),
 431                                         null
 432                                 );
 433                         } catch( GLib.Error  e) {
 434                                 this.log(LanguageClientAction.ERROR_RPC, e.message);
 435                                 GLib.debug ("LS change err %s", e.message);
 436                                 this.onClose();
 437                         }
 438
 439
 440         }
 441         // called by close window (on last window)...
 442                 public override  void exit () throws GLib.Error
 443                 {
 444                         if (!this.isReady()) {
 445
 446                                 return;
 447                         }
 448                         this.log(LanguageClientAction.TERM, "SEND exit");
 449
 450                           this.jsonrpc_client.send_notification (
 451                                 "exit",
 452                                 null,
 453                                 null
 454                         );
 455                         this.onClose();
 456
 457                 }
 458                 // not used currently..
 459                 public override async void shutdown () throws GLib.Error
 460                 {
 461                         if (!this.isReady()) {
 462                                 return;
 463                         }
 464                         this.log(LanguageClientAction.TERM, "SEND shutodwn");
 465                         this.sent_shutdown  = true;
 466                         Variant? return_value;
 467                         yield this.jsonrpc_client.call_async (
 468                                 "shutdown",
 469                                 null,
 470                                 null,
 471                                 out return_value
 472                         );
 473                         GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 474                 }
 475                 //public async  ??/symbol (string symbol) throws GLib.Error {
 476
 477                 // and now for the important styff..
 478
 479                 /*
 480
 481                 @triggerType 1 = typing or ctl-spac, 2 = tiggercharactres?  3= inside completion?
 482                 */
 483                  public override async Lsp.CompletionList?  completion(JsRender.JsRender file, int line, int offset , int triggerType = 1) throws GLib.Error
 484                  {
 485                         /* partial_result_token ,  work_done_token   context = null) */
 486                         GLib.debug("%s get completion %s @ %d:%d", this.get_type().name(),  file.relpath, line, offset);
 487
 488                         var ret = new Lsp.CompletionList();
 489
 490                     if (!this.isReady()) {
 491                         GLib.debug("completion - language server not ready");
 492                                 return ret;
 493                         }
 494                         // make sure completion has the latest info..
 495                         //if (this.change_queue_file != null && this.change_queue_file.path != file.path) {
 496                         //      this.document_change_real(this.change_queue_file, this.change_queue_file_source);
 497                         //      this.change_queue_file != null;
 498                         //}
 499                         this.log(LanguageClientAction.COMPLETE, "SEND complete  %s @ %d:%d".printf(file.relpath, line, offset) );
 500
 501                         Variant? return_value;
 502
 503                         var args = this.buildDict (
 504                                         context : this.buildDict (    ///CompletionContext;
 505                                                 triggerKind: new GLib.Variant.int32 (triggerType)
 506                                         //      triggerCharacter :  new GLib.Variant.string ("")
 507                                         ),
 508                                         textDocument : this.buildDict (    ///TextDocumentItem;
 509                                                 uri: new GLib.Variant.string (file.to_url()),
 510                                                 version :  new GLib.Variant.uint64 ( (uint64) file.version)
 511                                         ),
 512                                         position :  this.buildDict (
 513                                                 line :  new GLib.Variant.uint64 ( (uint) line) ,
 514                                                 character :  new GLib.Variant.uint64 ( uint.max(0,  (offset -1)))
 515                                         )
 516                                 );
 517
 518                         GLib.debug ("textDocument/completion send with %s", Json.to_string (Json.gvariant_serialize (args), true));
 519
 520                         yield this.jsonrpc_client.call_async (
 521                                 "textDocument/completion",
 522                                 args,
 523                                 null,
 524                                 out return_value
 525                         );
 526
 527
 528                         //GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 529                         var json = Json.gvariant_serialize (return_value);
 530
 531
 532                         if (json.get_node_type() == Json.NodeType.OBJECT) {
 533                                 ret = Json.gobject_deserialize (typeof (Lsp.CompletionList), json) as Lsp.CompletionList;
 534                                 this.log(LanguageClientAction.COMPLETE_REPLY, "GOT complete  %d items".printf(ret.items.size) );
 535                                 GLib.debug ("LS replied with Object");
 536                                 return ret;
 537                         }
 538
 539                         if (json.get_node_type() != Json.NodeType.ARRAY) {
 540                                 GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 541                                 this.log(LanguageClientAction.ERROR_REPLY, "GOT something else??");
 542                                 return ret;
 543
 544                         }
 545                         var ar = json.get_array();
 546
 547                         for(var i = 0; i < ar.get_length(); i++ ) {
 548                                 var add= Json.gobject_deserialize ( typeof (Lsp.CompletionItem),  ar.get_element(i)) as Lsp.CompletionItem;
 549                                 ret.items.add( add);
 550
 551                         }
 552                         this.log(LanguageClientAction.COMPLETE_REPLY, "GOT array %d items".printf(ret.items.size) );
 553                         GLib.debug ("LS replied with Array");
 554                         return ret;
 555
 556
 557                 }
 558                 //CompletionListInfo.itmems.parse_varient  or CompletionListInfo.parsevarient
 559                 public override async Gee.ArrayList<Lsp.DocumentSymbol> syntax (JsRender.JsRender file) throws GLib.Error
 560                  {
 561                         /* partial_result_token ,  work_done_token   context = null) */
 562                         GLib.debug("get syntax %s", file.relpath);
 563                         var ret = new Gee.ArrayList<Lsp.DocumentSymbol>();
 564                         //ret = null;
 565                     if (!this.isReady()) {
 566                                 return ret;
 567                         }
 568                         Variant? return_value;
 569                         yield this.jsonrpc_client.call_async (
 570                                 "textDocument/documentSymbol",
 571                                 this.buildDict (
 572
 573                                         textDocument : this.buildDict (    ///TextDocumentItem;
 574                                                 uri: new GLib.Variant.string (file.to_url()),
 575                                                 version :  new GLib.Variant.uint64 ( (uint64) file.version)
 576                                         )
 577
 578                                 ),
 579                                 null,
 580                                 out return_value
 581                         );
 582
 583
 584                         GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));
 585                         var json = Json.gvariant_serialize (return_value);
 586
 587
 588
 589                         var ar = json.get_array();
 590                         for(var i = 0; i < ar.get_length(); i++ ) {
 591                                 var add= Json.gobject_deserialize ( typeof (Lsp.DocumentSymbol),  ar.get_element(i)) as Lsp.DocumentSymbol;
 592                                 ret.add( add);
 593
 594                         }
 595                                 return ret ;
 596
 597
 598
 599                 }
 600
 601         }
 602
 603 }