initial commit, 4.5 stable

modules/gdscript/language_server/gdscript_language_protocol.h

@@ -0,0 +1,111 @@
+/**************************************************************************/
+/*  gdscript_language_protocol.h                                          */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "gdscript_text_document.h"
+#include "gdscript_workspace.h"
+
+#include "core/io/stream_peer_tcp.h"
+#include "core/io/tcp_server.h"
+
+#include "modules/jsonrpc/jsonrpc.h"
+
+#define LSP_MAX_BUFFER_SIZE 4194304
+#define LSP_MAX_CLIENTS 8
+
+class GDScriptLanguageProtocol : public JSONRPC {
+	GDCLASS(GDScriptLanguageProtocol, JSONRPC)
+
+private:
+	struct LSPeer : RefCounted {
+		Ref<StreamPeerTCP> connection;
+
+		uint8_t req_buf[LSP_MAX_BUFFER_SIZE];
+		int req_pos = 0;
+		bool has_header = false;
+		bool has_content = false;
+		int content_length = 0;
+		Vector<CharString> res_queue;
+		int res_sent = 0;
+
+		Error handle_data();
+		Error send_data();
+	};
+
+	enum LSPErrorCode {
+		RequestCancelled = -32800,
+		ContentModified = -32801,
+	};
+
+	static GDScriptLanguageProtocol *singleton;
+
+	HashMap<int, Ref<LSPeer>> clients;
+	Ref<TCPServer> server;
+	int latest_client_id = 0;
+	int next_client_id = 0;
+
+	int next_server_id = 0;
+
+	Ref<GDScriptTextDocument> text_document;
+	Ref<GDScriptWorkspace> workspace;
+
+	Error on_client_connected();
+	void on_client_disconnected(const int &p_client_id);
+
+	String process_message(const String &p_text);
+	String format_output(const String &p_text);
+
+	bool _initialized = false;
+
+protected:
+	static void _bind_methods();
+
+	Dictionary initialize(const Dictionary &p_params);
+	void initialized(const Variant &p_params);
+
+public:
+	_FORCE_INLINE_ static GDScriptLanguageProtocol *get_singleton() { return singleton; }
+	_FORCE_INLINE_ Ref<GDScriptWorkspace> get_workspace() { return workspace; }
+	_FORCE_INLINE_ Ref<GDScriptTextDocument> get_text_document() { return text_document; }
+	_FORCE_INLINE_ bool is_initialized() const { return _initialized; }
+
+	void poll(int p_limit_usec);
+	Error start(int p_port, const IPAddress &p_bind_ip);
+	void stop();
+
+	void notify_client(const String &p_method, const Variant &p_params = Variant(), int p_client_id = -1);
+	void request_client(const String &p_method, const Variant &p_params = Variant(), int p_client_id = -1);
+
+	bool is_smart_resolve_enabled() const;
+	bool is_goto_native_symbols_enabled() const;
+
+	GDScriptLanguageProtocol();
+};