meson.build.o7QLX02
[roobuilder] / src / Palete / LanguageClient.vala
index d3dd092..5f06a22 100644 (file)
 
 namespace Palete {
 
+       public enum  LanguageClientAction {
+               INIT,
+               LAUNCH,
+               ACCEPT,
+               
+               DIAG,
+               OPEN,
+               SAVE,
+               CLOSE,
+               CHANGE,
+               TERM,
+               COMPLETE,
+               COMPLETE_REPLY,
+               
+               RESTART,
+               ERROR,
+               ERROR_START,
+               ERROR_RPC,
+               ERROR_REPLY,
+
+               EXIT,
+       }
 
        public abstract class LanguageClient :   Jsonrpc.Server {
        
                public Project.Project project;
-               private GLib.SubprocessLauncher launcher;
-               private GLib.Subprocess subprocess;
-               private IOStream subprocess_stream;
+               private GLib.SubprocessLauncher launcher = null;
+               private GLib.Subprocess? subprocess = null;
+               private IOStream? subprocess_stream = null;
            public Jsonrpc.Client? jsonrpc_client = null;
                
+               Gee.ArrayList<JsRender.JsRender> open_files;
+               private JsRender.JsRender? _change_queue_file = null;
+               private string change_queue_file_source = "";
+               
+               JsRender.JsRender? change_queue_file {
+                       set {
+                               this.change_queue_file_source = value == null ? "" : value.toSource();
+                               this._change_queue_file = value;
+                       } 
+                       get {
+                               return this._change_queue_file;
+                       } 
+               }
+               uint change_queue_id = 0;
+               int countdown = 0;
+               protected bool initialized = false;
+               bool sent_shutdown = false;
+               private bool _closed = false;
+               private bool closed {
+                       get { return this._closed ; } 
+                       set {
+                               GLib.debug("closed has been set? to %s" , value ? "TRUE" : "FALSE" );
+                               this._closed = value;
+                       }
+               }
+       
+               public signal void log(LanguageClientAction action, string message);
+               
+               
                protected LanguageClient(Project.Project project)
                {
                        // extend versions will proably call initialize to start and connect to server.
                        this.project = project;
-                       
+                       this.open_files = new   Gee.ArrayList<JsRender.JsRender>();
+                       this.change_queue_id = GLib.Timeout.add_seconds(1, () => {
+                               if (this.change_queue_file == null) {
+                                       return true;
+                               }
+                               this.countdown--;
+                               if (this.countdown < 0){
+                                       this.document_change_real(this.change_queue_file,  this.change_queue_file_source);
+                                       this.change_queue_file = null;
+                                          
+                               }
+                               return true;
+                       });
                
                }
                 
                public bool initProcess(string process_path)
                {
+                       this.onClose();
+                       this.log(LanguageClientAction.LAUNCH, process_path);
+                       GLib.debug("Launching %s", process_path);
                        this.launcher = new GLib.SubprocessLauncher (SubprocessFlags.STDIN_PIPE | SubprocessFlags.STDOUT_PIPE);
                        this.launcher.set_environ(GLib.Environ.get());
                        try {
+
+                               
                                this.subprocess = launcher.spawnv ({ process_path });
+                               
+                               this.subprocess.wait_async.begin( null, ( obj,res ) => {
+                                       try {
+                                               this.subprocess.wait_async.end(res);
+                                       } catch (GLib.Error e) {
+                                               this.log(LanguageClientAction.ERROR_START, e.message);
+                                               GLib.debug("subprocess startup error %s", e.message);           
+                                       }
+                                       this.log(LanguageClientAction.EXIT, "process ended");
+                                       GLib.debug("Subprocess ended %s", process_path);
+                                       this.onClose();
+
+                               });
                                var input_stream = this.subprocess.get_stdout_pipe ();
                                var output_stream = this.subprocess.get_stdin_pipe ();
  
@@ -41,19 +122,60 @@ namespace Palete {
                                        if (!GLib.Unix.set_fd_nonblocking(((GLib.UnixInputStream)input_stream).fd, true)
                                         || !GLib.Unix.set_fd_nonblocking (((GLib.UnixOutputStream)output_stream).fd, true)) 
                                         {
-                                                GLib.debug("could not set pipes to nonblocking");
+                                               GLib.debug("could not set pipes to nonblocking");
+                                               this.onClose();
                                            return false;
                                    }
                            }
-                           this.subprocess_stream = new SimpleIOStream (input_stream, output_stream);
+                           this.subprocess_stream = new GLib.SimpleIOStream (input_stream, output_stream);
                        this.accept_io_stream ( this.subprocess_stream);
                        } catch (GLib.Error e) {
-                               GLib.debug("subprocess startup error %s", e.message);           
+                               this.log(LanguageClientAction.ERROR_START, e.message);
+                               GLib.debug("subprocess startup error %s", e.message);   
+                               this.onClose();
                                return false;
                }
             return true;
         }
-        
+        bool in_close = false;
+               public void onClose()
+               {
+                       if (this.in_close) {
+                               return;
+                       }
+                       if (this.launcher == null) {
+                               return;
+                       }
+                       this.in_close = true;
+                       GLib.debug("onClose called");
+                       
+                       if (this.jsonrpc_client != null) {
+                               try {
+                                       this.jsonrpc_client.close();
+                               } catch (GLib.Error e) {
+                                       GLib.debug("rpc Error close error %s", e.message);      
+                               }               
+                       }
+                       if (this.subprocess_stream != null) {
+                               try {
+                                       this.subprocess_stream.close();
+                               } catch (GLib.Error e) {
+                                       GLib.debug("stream Error close  %s", e.message);        
+                               }               
+                       }
+                       if (this.subprocess != null) {
+                               this.subprocess.force_exit();
+                       }
+                       if (this.launcher != null) {
+                               this.launcher.close();
+                       }
+                       
+                       this.launcher = null;
+                       this.subprocess = null;
+                       this.jsonrpc_client = null;
+                       this.closed = true;             
+                       this.in_close = false;
+               }
                /**
                utility method to build variant based queries
                */
@@ -77,13 +199,16 @@ namespace Palete {
                                this.jsonrpc_client = client;
                                
                                GLib.debug("client accepted connection - calling init server");
-                                
+                               this.log(LanguageClientAction.ACCEPT, "client accepted");
 
                                this.jsonrpc_client.notification.connect((method, paramz) => {
                                        this.onNotification(method, paramz);
                                });
                                 
                                this.jsonrpc_client.failed.connect(() => {
+                                       this.log(LanguageClientAction.ERROR_RPC, "client failed");
+                                       this.onClose();
+                                       
                                        GLib.debug("language server server has failed");
                                });
 
@@ -94,6 +219,19 @@ namespace Palete {
                }
                public bool isReady()
                {
+                       if (this.closed) {
+                               this.log(LanguageClientAction.RESTART,"closed is set - restarting");
+                               GLib.debug("server stopped = restarting");
+                               this.initialized = false;
+                               this.closed = false;
+                               this.startServer();
+                               foreach(var f in this.open_files) {
+                                       this.document_open(f);
+                               }
+                               return false; // can't do an operation yet?
+                                
+                       }
+                       
                        if (!this.initialized) {
                                GLib.debug("Server has not been initialized");
                                return false;
@@ -102,16 +240,19 @@ namespace Palete {
                                GLib.debug("Server has been started its shutting down process");
                                return false;
                        }
+                       // restart server..
+
+                       
+                       
                        return true;
                }
                
                
                public abstract  void initialize_server();
-               
+               public abstract  void startServer();
                //public abstract   void  initialize_server()  ;
                 
-               protected bool initialized = false;
-               bool sent_shutdown = false;
+               
                
                
                public void onNotification(string method, Variant? return_value)
@@ -133,10 +274,13 @@ namespace Palete {
                */
                public void onDiagnostic(Variant? return_value) 
                {
+
                        var dg = Json.gobject_deserialize (typeof (Lsp.Diagnostics), Json.gvariant_serialize (return_value)) as Lsp.Diagnostics; 
+                       this.log(LanguageClientAction.DIAG, dg.filename);
                        var f = this.project.getByPath(dg.filename);
                        if (f == null) {
-                               GLib.debug("no file %s", dg.uri);
+                               //GLib.debug("no file %s", dg.uri);
+                               this.project.updateErrorsforFile(null);
                                return;
                        }
                        foreach(var v in f.errorsByType.values) {
@@ -158,6 +302,10 @@ namespace Palete {
                        if (!this.isReady()) {
                                return;
                        }
+                       if (!this.open_files.contains(file)) {
+                               this.open_files.add(file);
+                       }
+                       
                        GLib.debug ("LS sent open");                     
                        try {
                                this.jsonrpc_client.send_notification (
@@ -172,7 +320,10 @@ namespace Palete {
                                        ),
                                        null
                                );
+                               this.log(LanguageClientAction.OPEN, file.path);
                        } catch( GLib.Error  e) {
+                               this.log(LanguageClientAction.ERROR_RPC, e.message);
+                               this.onClose();
                                GLib.debug ("LS sent open err %s", e.message);
                        }
 
@@ -183,20 +334,24 @@ namespace Palete {
                        if (!this.isReady()) {
                                return;
                        }
-                               GLib.debug ("LS send save");
+                       this.change_queue_file = null;
+                       GLib.debug ("LS send save");
                         try {
                                  this.jsonrpc_client.send_notification  (
                                        "textDocument/didChange",
                                        this.buildDict (  
                                                textDocument : this.buildDict (    ///TextDocumentItem;
-                                                       uri: new GLib.Variant.string (file.to_url())
-                                                       
+                                                       uri: new GLib.Variant.string (file.to_url()),
+                                                       version :  new GLib.Variant.uint64 ( (uint64) file.version)
                                                )
                                        ),
                                        null 
                                );
+                               this.log(LanguageClientAction.SAVE, file.path);
                        } catch( GLib.Error  e) {
-                               GLib.debug ("LS sent save err %s", e.message);
+                               this.log(LanguageClientAction.ERROR_RPC, e.message);
+                               GLib.debug ("LS   save err %s", e.message);
+                               this.onClose();
                        }
 
          
@@ -206,7 +361,13 @@ namespace Palete {
                        if (!this.isReady()) {
                                return;
                        }
-                                                       GLib.debug ("LS send close");
+                       this.change_queue_file = null;
+                       
+                       if (this.open_files.contains(file)) {
+                               this.open_files.remove(file);
+                       }
+                       this.log(LanguageClientAction.CLOSE, file.path);
+                       GLib.debug ("LS send close");
                        try {
                                  this.jsonrpc_client.send_notification  (
                                        "textDocument/didChange",
@@ -219,23 +380,44 @@ namespace Palete {
                                        null  
                                );
                        } catch( GLib.Error  e) {
-                               GLib.debug ("LS sent close err %s", e.message);
+                               this.log(LanguageClientAction.ERROR_RPC, e.message);
+                               GLib.debug ("LS close err %s", e.message);
+                               this.onClose();
                        }
 
          
        }
-               public    void document_change (JsRender.JsRender file)  
+       
+        
+               public void document_change (JsRender.JsRender file   )    
+               {
+                       if (this.change_queue_file != null && this.change_queue_file.path != file.path) {
+                               this.document_change_real(this.change_queue_file, this.change_queue_file_source);
+                       }
+                       
+                       this.countdown = 3;
+                       this.change_queue_file = file;
+                        
+                       
+
+               }
+       
+
+               public void document_change_real (JsRender.JsRender file, string contents)  
        {
                        if (!this.isReady()) {
                                return;
                        }
+                            
+                       
                        GLib.debug ("LS send change");
                        var ar = new Json.Array();
                        var obj = new Json.Object();
-                       obj.set_string_member("text", file.toSource());
+                       obj.set_string_member("text", contents);
                        ar.add_object_element(obj);
                        var node = new Json.Node(Json.NodeType.ARRAY);
                        node.set_array(ar);
+                       this.log(LanguageClientAction.CHANGE, file.path);
                         try {
                                this.jsonrpc_client.send_notification (
                                        "textDocument/didChange",
@@ -250,7 +432,9 @@ namespace Palete {
                                        null 
                                );
                        } catch( GLib.Error  e) {
-                               GLib.debug ("LS sent close err %s", e.message);
+                               this.log(LanguageClientAction.ERROR_RPC, e.message);
+                               GLib.debug ("LS change err %s", e.message);
+                               this.onClose();
                        }
 
          
@@ -258,22 +442,25 @@ namespace Palete {
                public   void exit () throws GLib.Error 
                {
                        if (!this.isReady()) {
+                       
                                return;
                        }
-                       this.sent_shutdown  = true;
+                       this.log(LanguageClientAction.TERM, "SEND exit");
                 
-                         this.jsonrpc_client.send_notification_async (
+                         this.jsonrpc_client.send_notification (
                                "exit",
                                null,
                                null 
                        );
-                       
-               }
+                       this.onClose();
+
+               }
                public async void shutdown () throws GLib.Error 
                {
                        if (!this.isReady()) {
                                return;
                        }
+                       this.log(LanguageClientAction.TERM, "SEND shutodwn");
                        this.sent_shutdown  = true;
                        Variant? return_value;
                        yield this.jsonrpc_client.call_async (
@@ -297,14 +484,22 @@ namespace Palete {
                        /* partial_result_token ,  work_done_token   context = null) */
                        GLib.debug("get completion %s @ %d:%d", file.relpath, line, offset);
                        
-                       ret = null;
+                       ret = new Lsp.CompletionList(); 
+                       
                    if (!this.isReady()) {
+                       GLib.debug("completion - language server not ready");
                                return;
                        }
+                       // make sure completion has the latest info..
+                       //if (this.change_queue_file != null && this.change_queue_file.path != file.path) {
+                       //      this.document_change_real(this.change_queue_file, this.change_queue_file_source);
+                       //      this.change_queue_file != null;
+                       //}
+                       this.log(LanguageClientAction.COMPLETE, "SEND complete  %s @ %d:%d".printf(file.relpath, line, offset) );
+                       
                        Variant? return_value;
-                       yield this.jsonrpc_client.call_async (
-                               "textDocument/completion",
-                               this.buildDict (  
+                       
+                       var args = this.buildDict (  
                                        context : this.buildDict (    ///CompletionContext;
                                                triggerKind: new GLib.Variant.int32 (triggerType) 
                                        //      triggerCharacter :  new GLib.Variant.string ("")
@@ -314,10 +509,16 @@ namespace Palete {
                                                version :  new GLib.Variant.uint64 ( (uint64) file.version) 
                                        ), 
                                        position :  this.buildDict ( 
-                                               line :  new GLib.Variant.uint64 ( (uint64) line) ,
-                                               character :  new GLib.Variant.uint64 ( (uint64) offset
+                                               line :  new GLib.Variant.uint64 ( (uint) line) ,
+                                               character :  new GLib.Variant.uint64 ( uint.max(0,  (offset -1))
                                        )
-                               ),
+                               );
+                        
+                       GLib.debug ("textDocument/completion send with %s", Json.to_string (Json.gvariant_serialize (args), true));                                     
+                       
+                       yield this.jsonrpc_client.call_async (
+                               "textDocument/completion",
+                               args,
                                null,
                                out return_value
                        );
@@ -325,26 +526,76 @@ namespace Palete {
                        
                        //GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));                                     
                        var json = Json.gvariant_serialize (return_value);
-                       var ar = json.get_array();
 
-                       if (ar == null) {
+
+                       if (json.get_node_type() == Json.NodeType.OBJECT) {
                                ret = Json.gobject_deserialize (typeof (Lsp.CompletionList), json) as Lsp.CompletionList; 
+                               this.log(LanguageClientAction.COMPLETE_REPLY, "GOT complete  %d items".printf(ret.items.size) );
+                               GLib.debug ("LS replied with Object");
                                return;
                        }  
-                       ret = new Lsp.CompletionList(); 
+
+                       if (json.get_node_type() != Json.NodeType.ARRAY) {
+                               GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));                                       
+                               this.log(LanguageClientAction.ERROR_REPLY, "GOT something else??");
+                               return;
+                       
+                       }
+                       var ar = json.get_array();                      
+                       
                        for(var i = 0; i < ar.get_length(); i++ ) {
                                var add= Json.gobject_deserialize ( typeof (Lsp.CompletionItem),  ar.get_element(i)) as Lsp.CompletionItem;
                                ret.items.add( add);
                                         
                        }
-                                 
-                       
+                       this.log(LanguageClientAction.COMPLETE_REPLY, "GOT array %d items".printf(ret.items.size) );
+                       GLib.debug ("LS replied with Array");
                
 
                }
                //CompletionListInfo.itmems.parse_varient  or CompletionListInfo.parsevarient
+               public async Gee.ArrayList<Lsp.DocumentSymbol> syntax (JsRender.JsRender file) throws GLib.Error 
+                {
+                       /* partial_result_token ,  work_done_token   context = null) */
+                       GLib.debug("get syntax %s", file.relpath);
+                       var ret = new Gee.ArrayList<Lsp.DocumentSymbol>();      
+                       //ret = null;
+                   if (!this.isReady()) {
+                               return ret;
+                       }
+                       Variant? return_value;
+                       yield this.jsonrpc_client.call_async (
+                               "textDocument/documentSymbol",
+                               this.buildDict (  
+                                        
+                                       textDocument : this.buildDict (    ///TextDocumentItem;
+                                               uri: new GLib.Variant.string (file.to_url()),
+                                               version :  new GLib.Variant.uint64 ( (uint64) file.version) 
+                                       ) 
+                                        
+                               ),
+                               null,
+                               out return_value
+                       );
+                       
+                       
+                       GLib.debug ("LS replied with %s", Json.to_string (Json.gvariant_serialize (return_value), true));                                       
+                       var json = Json.gvariant_serialize (return_value);
+                        
+                        
 
+                       var ar = json.get_array();
+                       for(var i = 0; i < ar.get_length(); i++ ) {
+                               var add= Json.gobject_deserialize ( typeof (Lsp.DocumentSymbol),  ar.get_element(i)) as Lsp.DocumentSymbol;
+                               ret.add( add);
+                                        
+                       }
+                               return ret ;
+                       
+               
 
+               }
                
        }
 }