bed06b13f3
FileDB wraps the access to the contents of project files. When asked to fetch a file, FileDB will either return its in-memory model of the file if it has been "opened" by the language-server protocol, or otherwise fetch it from the filesystem. Previously, the cpp language server did not pledge "rpath" and got access to the contents of files whenever they were opened by the language client. However, features like inspection of header files require the language server to get the content of files that were not opened by the client. The language server now pledges rpath but makes sure to only unveil the project's directory and /usr/include.
135 lines
4.9 KiB
C++
135 lines
4.9 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "AutoCompleteResponse.h"
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#include <AK/Forward.h>
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#include <AK/LexicalPath.h>
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#include <AK/Types.h>
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#include <AK/WeakPtr.h>
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#include <AK/Weakable.h>
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#include <LibIPC/ServerConnection.h>
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#include <DevTools/HackStudio/LanguageServers/LanguageClientEndpoint.h>
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#include <DevTools/HackStudio/LanguageServers/LanguageServerEndpoint.h>
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namespace HackStudio {
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class LanguageClient;
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class ServerConnection
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: public IPC::ServerConnection<LanguageClientEndpoint, LanguageServerEndpoint>
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, public LanguageClientEndpoint {
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public:
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ServerConnection(const StringView& socket, const String& project_path)
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: IPC::ServerConnection<LanguageClientEndpoint, LanguageServerEndpoint>(*this, socket)
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{
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m_project_path = project_path;
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}
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void attach(LanguageClient& client)
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{
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m_language_client = &client;
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}
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void detach()
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{
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m_language_client = nullptr;
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}
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virtual void handshake() override
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{
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send_sync<Messages::LanguageServer::Greet>(m_project_path);
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}
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WeakPtr<LanguageClient> language_client() { return m_language_client; }
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template<typename ConcreteType>
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static NonnullRefPtr<ServerConnection> get_or_create(const String& project_path)
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{
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static HashMap<String, NonnullRefPtr<ConcreteType>> s_instances_for_projects;
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auto key = LexicalPath { project_path }.string();
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if (auto instance = s_instances_for_projects.get(key); instance.has_value())
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return *instance.value();
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auto connection = ConcreteType::construct(project_path);
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connection->handshake();
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s_instances_for_projects.set(key, *connection);
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return *connection;
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}
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protected:
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virtual void handle(const Messages::LanguageClient::AutoCompleteSuggestions&) override;
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String m_project_path;
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WeakPtr<LanguageClient> m_language_client;
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};
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class LanguageClient : public Weakable<LanguageClient> {
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public:
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explicit LanguageClient(NonnullRefPtr<ServerConnection>&& connection)
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: m_connection(*connection)
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, m_server_connection(move(connection))
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{
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m_previous_client = m_connection.language_client();
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ASSERT(m_previous_client.ptr() != this);
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m_connection.attach(*this);
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}
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virtual ~LanguageClient()
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{
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m_connection.detach();
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ASSERT(m_previous_client.ptr() != this);
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if (m_previous_client)
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m_connection.attach(*m_previous_client);
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}
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void set_active_client();
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virtual void open_file(const String& path, int fd);
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virtual void set_file_content(const String& path, const String& content);
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virtual void insert_text(const String& path, const String& text, size_t line, size_t column);
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virtual void 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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virtual void request_autocomplete(const String& path, size_t cursor_line, size_t cursor_column);
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virtual void set_autocomplete_mode(const String& mode);
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void provide_autocomplete_suggestions(const Vector<GUI::AutocompleteProvider::Entry>&);
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Function<void(Vector<GUI::AutocompleteProvider::Entry>)> on_autocomplete_suggestions;
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private:
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ServerConnection& m_connection;
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NonnullRefPtr<ServerConnection> m_server_connection;
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WeakPtr<LanguageClient> m_previous_client;
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};
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template<typename ServerConnectionT>
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static inline NonnullOwnPtr<LanguageClient> get_language_client(const String& project_path)
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{
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return make<LanguageClient>(ServerConnection::get_or_create<ServerConnectionT>(project_path));
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}
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}
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