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			253 lines
		
	
	
	
		
			8.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			253 lines
		
	
	
	
		
			8.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2020, the SerenityOS developers.
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|  *
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|  * SPDX-License-Identifier: BSD-2-Clause
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|  */
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| 
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| #include "LanguageClient.h"
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| #include "HackStudio.h"
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| #include "ProjectDeclarations.h"
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| #include "ToDoEntries.h"
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| #include <AK/String.h>
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| #include <AK/Vector.h>
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| #include <LibGUI/Notification.h>
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| 
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| namespace HackStudio {
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| 
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| void ServerConnection::auto_complete_suggestions(const Vector<GUI::AutocompleteProvider::Entry>& suggestions)
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| {
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|     if (!m_current_language_client) {
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|         dbgln("Language Server connection has no attached language client");
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|         return;
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|     }
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|     m_current_language_client->provide_autocomplete_suggestions(suggestions);
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| }
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| 
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| void ServerConnection::declaration_location(const GUI::AutocompleteProvider::ProjectLocation& location)
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| {
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|     if (!m_current_language_client) {
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|         dbgln("Language Server connection has no attached language client");
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|         return;
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|     }
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|     m_current_language_client->declaration_found(location.file, location.line, location.column);
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| }
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| 
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| void ServerConnection::parameters_hint_result(Vector<String> const& params, int argument_index)
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| {
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|     if (!m_current_language_client) {
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|         dbgln("Language Server connection has no attached language client");
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|         return;
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|     }
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| 
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|     VERIFY(argument_index >= 0);
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|     m_current_language_client->parameters_hint_result(params, static_cast<size_t>(argument_index));
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| }
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| 
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| void ServerConnection::die()
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| {
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|     VERIFY(m_wrapper);
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|     // Wrapper destructs us here
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|     m_wrapper->on_crash();
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| }
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| 
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| void LanguageClient::open_file(const String& path, int fd)
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| {
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|     if (!m_connection_wrapper.connection())
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|         return;
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|     m_connection_wrapper.connection()->async_file_opened(path, fd);
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| }
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| 
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| void LanguageClient::set_file_content(const String& path, const String& content)
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| {
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|     if (!m_connection_wrapper.connection())
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|         return;
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|     m_connection_wrapper.connection()->async_set_file_content(path, content);
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| }
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| 
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| void LanguageClient::insert_text(const String& path, const String& text, size_t line, size_t column)
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| {
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|     if (!m_connection_wrapper.connection())
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|         return;
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|     //    set_active_client();
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|     m_connection_wrapper.connection()->async_file_edit_insert_text(path, text, line, column);
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| }
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| 
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| void LanguageClient::remove_text(const String& path, size_t from_line, size_t from_column, size_t to_line, size_t to_column)
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| {
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|     if (!m_connection_wrapper.connection())
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|         return;
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|     m_connection_wrapper.connection()->async_file_edit_remove_text(path, from_line, from_column, to_line, to_column);
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| }
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| 
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| void LanguageClient::request_autocomplete(const String& path, size_t cursor_line, size_t cursor_column)
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| {
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|     if (!m_connection_wrapper.connection())
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|         return;
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|     set_active_client();
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|     m_connection_wrapper.connection()->async_auto_complete_suggestions(GUI::AutocompleteProvider::ProjectLocation { path, cursor_line, cursor_column });
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| }
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| 
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| void LanguageClient::provide_autocomplete_suggestions(const Vector<GUI::AutocompleteProvider::Entry>& suggestions) const
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| {
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|     if (on_autocomplete_suggestions)
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|         on_autocomplete_suggestions(suggestions);
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| 
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|     // Otherwise, drop it on the floor :shrug:
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| }
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| 
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| void LanguageClient::set_active_client()
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| {
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|     if (!m_connection_wrapper.connection())
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|         return;
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|     m_connection_wrapper.set_active_client(*this);
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| }
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| 
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| HashMap<String, NonnullOwnPtr<ServerConnectionWrapper>> ServerConnectionInstances::s_instance_for_language;
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| 
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| void ServerConnection::declarations_in_document(const String& filename, const Vector<GUI::AutocompleteProvider::Declaration>& declarations)
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| {
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|     ProjectDeclarations::the().set_declared_symbols(filename, declarations);
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| }
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| 
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| void ServerConnection::todo_entries_in_document(String const& filename, Vector<Cpp::Parser::TodoEntry> const& todo_entries)
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| {
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|     ToDoEntries::the().set_entries(filename, move(todo_entries));
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| }
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| 
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| void LanguageClient::search_declaration(const String& path, size_t line, size_t column)
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| {
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|     if (!m_connection_wrapper.connection())
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|         return;
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|     set_active_client();
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|     m_connection_wrapper.connection()->async_find_declaration(GUI::AutocompleteProvider::ProjectLocation { path, line, column });
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| }
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| 
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| void LanguageClient::get_parameters_hint(const String& path, size_t line, size_t column)
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| {
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|     if (!m_connection_wrapper.connection())
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|         return;
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|     set_active_client();
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|     m_connection_wrapper.connection()->async_get_parameters_hint(GUI::AutocompleteProvider::ProjectLocation { path, line, column });
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| }
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| 
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| void LanguageClient::declaration_found(const String& file, size_t line, size_t column) const
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| {
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|     if (!on_declaration_found) {
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|         dbgln("on_declaration_found callback is not set");
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|         return;
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|     }
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|     on_declaration_found(file, line, column);
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| }
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| 
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| void LanguageClient::parameters_hint_result(Vector<String> const& params, size_t argument_index) const
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| {
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|     if (!on_function_parameters_hint_result) {
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|         dbgln("on_function_parameters_hint_result callback is not set");
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|         return;
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|     }
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|     on_function_parameters_hint_result(params, argument_index);
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| }
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| 
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| void ServerConnectionInstances::set_instance_for_language(const String& language_name, NonnullOwnPtr<ServerConnectionWrapper>&& connection_wrapper)
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| {
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|     s_instance_for_language.set(language_name, move(connection_wrapper));
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| }
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| 
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| void ServerConnectionInstances::remove_instance_for_language(const String& language_name)
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| {
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|     s_instance_for_language.remove(language_name);
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| }
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| 
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| ServerConnectionWrapper* ServerConnectionInstances::get_instance_wrapper(const String& language_name)
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| {
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|     if (auto instance = s_instance_for_language.get(language_name); instance.has_value()) {
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|         return const_cast<ServerConnectionWrapper*>(instance.value());
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|     }
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|     return nullptr;
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| }
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| 
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| void ServerConnectionWrapper::on_crash()
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| {
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|     show_crash_notification();
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|     m_connection.clear();
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| 
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|     static constexpr int max_crash_frequency_seconds = 3;
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|     if (m_last_crash_timer.is_valid() && m_last_crash_timer.elapsed() / 1000 < max_crash_frequency_seconds) {
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|         dbgln("LanguageServer crash frequency is too high");
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|         m_respawn_allowed = false;
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| 
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|         show_frequenct_crashes_notification();
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|     } else {
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|         m_last_crash_timer.start();
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|         try_respawn_connection();
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|     }
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| }
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| void ServerConnectionWrapper::show_frequenct_crashes_notification() const
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| {
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|     auto notification = GUI::Notification::construct();
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|     notification->set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/32x32/app-hack-studio.png"));
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|     notification->set_title("LanguageServer Crashes too much!");
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|     notification->set_text("LanguageServer aided features will not be available in this session");
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|     notification->show();
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| }
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| void ServerConnectionWrapper::show_crash_notification() const
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| {
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|     auto notification = GUI::Notification::construct();
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|     notification->set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/32x32/app-hack-studio.png"));
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|     notification->set_title("Oops!");
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|     notification->set_text(String::formatted("LanguageServer has crashed"));
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|     notification->show();
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| }
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| 
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| ServerConnectionWrapper::ServerConnectionWrapper(const String& language_name, Function<NonnullRefPtr<ServerConnection>()> connection_creator)
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|     : m_language(language_from_name(language_name))
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|     , m_connection_creator(move(connection_creator))
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| {
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|     create_connection();
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| }
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| 
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| void ServerConnectionWrapper::create_connection()
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| {
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|     VERIFY(m_connection.is_null());
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|     m_connection = m_connection_creator();
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|     m_connection->set_wrapper(*this);
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| }
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| 
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| ServerConnection* ServerConnectionWrapper::connection()
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| {
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|     return m_connection.ptr();
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| }
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| 
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| void ServerConnectionWrapper::attach(LanguageClient& client)
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| {
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|     m_connection->m_current_language_client = &client;
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| }
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| 
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| void ServerConnectionWrapper::detach()
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| {
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|     m_connection->m_current_language_client.clear();
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| }
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| 
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| void ServerConnectionWrapper::set_active_client(LanguageClient& client)
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| {
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|     m_connection->m_current_language_client = &client;
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| }
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| 
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| void ServerConnectionWrapper::try_respawn_connection()
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| {
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|     if (!m_respawn_allowed)
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|         return;
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| 
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|     dbgln("Respawning ServerConnection");
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|     create_connection();
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| 
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|     // After respawning the language-server, we have to flush the content of the project files
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|     // so the server's FileDB will be up-to-date.
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|     project().for_each_text_file([this](const ProjectFile& file) {
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|         if (file.code_document().language() != m_language)
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|             return;
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|         m_connection->async_set_file_content(file.code_document().file_path(), file.document().text());
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|     });
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| }
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| 
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| }
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