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https://github.com/RGBCube/serenity
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HackStudio: Add C++ Language Server
The language server keeps track of the content of currently edited files by receiving updates about edit actions. Also, C++ autocompletion is no longer tied to HackStudio itself and moved to be part of the language server.
This commit is contained in:
parent
bf53d7ff64
commit
863f14788f
18 changed files with 451 additions and 21 deletions
94
DevTools/HackStudio/LanguageServers/Cpp/AutoComplete.cpp
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94
DevTools/HackStudio/LanguageServers/Cpp/AutoComplete.cpp
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/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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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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#include "AutoComplete.h"
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#include <AK/HashTable.h>
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#include <LibCpp/Lexer.h>
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// #define DEBUG_AUTOCOMPLETE
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namespace LanguageServers::Cpp {
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Vector<String> AutoComplete::get_suggestions(const String& code, GUI::TextPosition autocomplete_position)
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{
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auto lines = code.split('\n', true);
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Lexer lexer(code);
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auto tokens = lexer.lex();
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auto index_of_target_token = token_in_position(tokens, autocomplete_position);
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if (!index_of_target_token.has_value())
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return {};
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auto suggestions = identifier_prefixes(lines, tokens, index_of_target_token.value());
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#ifdef DEBUG_AUTOCOMPLETE
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for (auto& suggestion : suggestions) {
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dbg() << "suggestion: " << suggestion;
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}
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#endif
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return suggestions;
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}
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String AutoComplete::text_of_token(const Vector<String> lines, const Cpp::Token& token)
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{
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return lines[token.m_start.line].substring(token.m_start.column, token.m_end.column - token.m_start.column + 1);
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}
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Optional<size_t> AutoComplete::token_in_position(const Vector<Cpp::Token>& tokens, GUI::TextPosition position)
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{
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for (size_t token_index = 0; token_index < tokens.size(); ++token_index) {
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auto& token = tokens[token_index];
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if (token.m_start.line != position.line())
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continue;
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if (token.m_start.column > position.column() || token.m_end.column < position.column())
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continue;
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return token_index;
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}
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return {};
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}
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Vector<String> AutoComplete::identifier_prefixes(const Vector<String> lines, const Vector<Cpp::Token>& tokens, size_t target_token_index)
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{
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auto partial_input = text_of_token(lines, tokens[target_token_index]);
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Vector<String> suggestions;
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HashTable<String> suggestions_lookup; // To avoid duplicate results
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for (size_t i = 0; i < target_token_index; ++i) {
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auto& token = tokens[i];
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if (token.m_type != Cpp::Token::Type::Identifier)
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continue;
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auto text = text_of_token(lines, token);
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if (text.starts_with(partial_input) && !suggestions_lookup.contains(text)) {
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suggestions_lookup.set(text);
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suggestions.append(text);
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}
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}
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return suggestions;
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}
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}
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50
DevTools/HackStudio/LanguageServers/Cpp/AutoComplete.h
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50
DevTools/HackStudio/LanguageServers/Cpp/AutoComplete.h
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/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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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 <AK/String.h>
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#include <AK/Vector.h>
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#include <LibCpp/Lexer.h>
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#include <LibGUI/TextPosition.h>
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namespace LanguageServers::Cpp {
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using namespace ::Cpp;
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class AutoComplete {
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public:
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AutoComplete() = delete;
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static Vector<String> get_suggestions(const String& code, GUI::TextPosition autocomplete_position);
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private:
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static Optional<size_t> token_in_position(const Vector<Cpp::Token>&, GUI::TextPosition);
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static String text_of_token(const Vector<String> lines, const Cpp::Token&);
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static Vector<String> identifier_prefixes(const Vector<String> lines, const Vector<Cpp::Token>&, size_t target_token_index);
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};
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}
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16
DevTools/HackStudio/LanguageServers/Cpp/CMakeLists.txt
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16
DevTools/HackStudio/LanguageServers/Cpp/CMakeLists.txt
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compile_ipc(CppLanguageServer.ipc CppLanguageServerEndpoint.h)
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compile_ipc(CppLanguageClient.ipc CppLanguageClientEndpoint.h)
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set(SOURCES
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ClientConnection.cpp
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main.cpp
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CppLanguageServerEndpoint.h
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CppLanguageClientEndpoint.h
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AutoComplete.cpp
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)
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serenity_bin(CppLanguageServer)
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# We link with LibGUI because we use GUI::TextDocument to update
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# the content of files according to the edit actions we receive over IPC.
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target_link_libraries(CppLanguageServer LibIPC LibCpp LibGUI)
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188
DevTools/HackStudio/LanguageServers/Cpp/ClientConnection.cpp
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188
DevTools/HackStudio/LanguageServers/Cpp/ClientConnection.cpp
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@ -0,0 +1,188 @@
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/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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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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#include "ClientConnection.h"
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#include "AutoComplete.h"
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#include <AK/HashMap.h>
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#include <LibCore/File.h>
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#include <LibGUI/TextDocument.h>
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// #define DEBUG_CPP_LANGUAGE_SERVER
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// #define DEBUG_FILE_CONTENT
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namespace LanguageServers::Cpp {
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static HashMap<int, RefPtr<ClientConnection>> s_connections;
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ClientConnection::ClientConnection(NonnullRefPtr<Core::LocalSocket> socket, int client_id)
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: IPC::ClientConnection<CppLanguageClientEndpoint, CppLanguageServerEndpoint>(*this, move(socket), client_id)
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{
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s_connections.set(client_id, *this);
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}
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ClientConnection::~ClientConnection()
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{
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}
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void ClientConnection::die()
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{
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s_connections.remove(client_id());
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exit(0);
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}
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OwnPtr<Messages::CppLanguageServer::GreetResponse> ClientConnection::handle(const Messages::CppLanguageServer::Greet& message)
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{
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m_project_root = LexicalPath(message.project_root());
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#ifdef DEBUG_CPP_LANGUAGE_SERVER
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dbg() << "project_root: " << m_project_root.string();
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#endif
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return make<Messages::CppLanguageServer::GreetResponse>(client_id());
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}
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class DefaultDocumentClient final : public GUI::TextDocument::Client {
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public:
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virtual ~DefaultDocumentClient() override = default;
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virtual void document_did_append_line() override {};
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virtual void document_did_insert_line(size_t) override {};
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virtual void document_did_remove_line(size_t) override {};
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virtual void document_did_remove_all_lines() override {};
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virtual void document_did_change() override {};
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virtual void document_did_set_text() override {};
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virtual void document_did_set_cursor(const GUI::TextPosition&) override {};
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virtual bool is_automatic_indentation_enabled() const override { return true; }
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virtual int soft_tab_width() const { return 4; }
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};
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static DefaultDocumentClient s_default_document_client;
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void ClientConnection::handle(const Messages::CppLanguageServer::FileOpened& message)
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{
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LexicalPath file_path(String::format("%s/%s", m_project_root.string().characters(), message.file_name().characters()));
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#ifdef DEBUG_CPP_LANGUAGE_SERVER
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dbg() << "FileOpened: " << file_path.string();
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#endif
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auto file = Core::File::construct(file_path.string());
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if (!file->open(Core::IODevice::ReadOnly)) {
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errno = file->error();
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perror("open");
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dbg() << "Failed to open project file: " << file_path.string();
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return;
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}
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auto content = file->read_all();
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StringView content_view(content);
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auto document = GUI::TextDocument::create(&s_default_document_client);
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document->set_text(content_view);
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m_open_files.set(message.file_name(), document);
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#ifdef DEBUG_FILE_CONTENT
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dbg() << document->text();
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#endif
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}
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void ClientConnection::handle(const Messages::CppLanguageServer::FileEditInsertText& message)
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{
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#ifdef DEBUG_CPP_LANGUAGE_SERVER
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dbg() << "InsertText for file: " << message.file_name();
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dbg() << "Text: " << message.text();
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dbg() << "[" << message.start_line() << ":" << message.start_column() << "]";
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#endif
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auto document = document_for(message.file_name());
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if (!document) {
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dbg() << "file " << message.file_name() << " has not been opened";
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return;
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}
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GUI::TextPosition start_position { (size_t)message.start_line(), (size_t)message.start_column() };
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document->insert_at(start_position, message.text(), &s_default_document_client);
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#ifdef DEBUG_FILE_CONTENT
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dbg() << document->text();
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#endif
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}
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void ClientConnection::handle(const Messages::CppLanguageServer::FileEditRemoveText& message)
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{
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#ifdef DEBUG_CPP_LANGUAGE_SERVER
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dbg() << "RemoveText for file: " << message.file_name();
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dbg() << "[" << message.start_line() << ":" << message.start_column() << " - " << message.end_line() << ":" << message.end_column() << "]";
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#endif
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auto document = document_for(message.file_name());
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if (!document) {
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dbg() << "file " << message.file_name() << " has not been opened";
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return;
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}
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GUI::TextPosition start_position { (size_t)message.start_line(), (size_t)message.start_column() };
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GUI::TextRange range {
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GUI::TextPosition { (size_t)message.start_line(),
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(size_t)message.start_column() },
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GUI::TextPosition { (size_t)message.end_line(),
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(size_t)message.end_column() }
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};
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document->remove(range);
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#ifdef DEBUG_FILE_CONTENT
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dbg() << document->text();
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#endif
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}
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// FIXME: The work we do here could be taxing and block the client for a significant time.
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// Would should turn this to an async IPC endpoint and report the reuslts back in a separate Server->Client message.
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OwnPtr<Messages::CppLanguageServer::AutoCompleteSuggestionsResponse> ClientConnection::handle(const Messages::CppLanguageServer::AutoCompleteSuggestions& message)
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{
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#ifdef DEBUG_CPP_LANGUAGE_SERVER
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dbg() << "AutoCompleteSuggestions for: " << message.file_name() << " " << message.cursor_line() << ":" << message.cursor_column();
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#endif
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auto document = document_for(message.file_name());
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if (!document) {
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dbg() << "file " << message.file_name() << " has not been opened";
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return nullptr;
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}
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Vector<String> suggestions = AutoComplete::get_suggestions(document->text(), { (size_t)message.cursor_line(), (size_t)message.cursor_column() });
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return make<Messages::CppLanguageServer::AutoCompleteSuggestionsResponse>(suggestions);
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}
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RefPtr<GUI::TextDocument> ClientConnection::document_for(const String& file_name)
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{
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auto document_optional = m_open_files.get(file_name);
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if (!document_optional.has_value())
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return nullptr;
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return document_optional.value();
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}
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void ClientConnection::handle(const Messages::CppLanguageServer::SetFileContent& message)
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{
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auto document = document_for(message.file_name());
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if (!document) {
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dbg() << "file " << message.file_name() << " has not been opened";
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return;
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}
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auto content = message.content();
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document->set_text(content.view());
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}
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}
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63
DevTools/HackStudio/LanguageServers/Cpp/ClientConnection.h
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63
DevTools/HackStudio/LanguageServers/Cpp/ClientConnection.h
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/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
|
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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
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* 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 <AK/HashMap.h>
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#include <AK/LexicalPath.h>
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#include <DevTools/HackStudio/LanguageServers/Cpp/CppLanguageClientEndpoint.h>
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#include <DevTools/HackStudio/LanguageServers/Cpp/CppLanguageServerEndpoint.h>
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#include <LibGUI/TextDocument.h>
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#include <LibIPC/ClientConnection.h>
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namespace LanguageServers::Cpp {
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class ClientConnection final
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: public IPC::ClientConnection<CppLanguageClientEndpoint, CppLanguageServerEndpoint>
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, public CppLanguageServerEndpoint {
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C_OBJECT(ClientConnection);
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public:
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explicit ClientConnection(NonnullRefPtr<Core::LocalSocket>, int client_id);
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~ClientConnection() override;
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virtual void die() override;
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private:
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virtual OwnPtr<Messages::CppLanguageServer::GreetResponse> handle(const Messages::CppLanguageServer::Greet&) override;
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virtual void handle(const Messages::CppLanguageServer::FileOpened&) override;
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virtual void handle(const Messages::CppLanguageServer::FileEditInsertText&) override;
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virtual void handle(const Messages::CppLanguageServer::FileEditRemoveText&) override;
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virtual void handle(const Messages::CppLanguageServer::SetFileContent&) override;
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virtual OwnPtr<Messages::CppLanguageServer::AutoCompleteSuggestionsResponse> handle(const Messages::CppLanguageServer::AutoCompleteSuggestions&) override;
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RefPtr<GUI::TextDocument> document_for(const String& file_name);
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LexicalPath m_project_root;
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HashMap<String, NonnullRefPtr<GUI::TextDocument>> m_open_files;
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};
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}
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endpoint CppLanguageClient = 8002
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{
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Dummy() =|
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}
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endpoint CppLanguageServer = 8001
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{
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Greet(String project_root) => (i32 client_id)
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|
||||
FileOpened(String file_name) =|
|
||||
FileEditInsertText(String file_name, String text, i32 start_line, i32 start_column) =|
|
||||
FileEditRemoveText(String file_name, i32 start_line, i32 start_column, i32 end_line, i32 end_column) =|
|
||||
SetFileContent(String file_name, String content) =|
|
||||
|
||||
AutoCompleteSuggestions(String file_name, i32 cursor_line, i32 cursor_column) => (Vector<String> suggestions)
|
||||
}
|
51
DevTools/HackStudio/LanguageServers/Cpp/main.cpp
Normal file
51
DevTools/HackStudio/LanguageServers/Cpp/main.cpp
Normal file
|
@ -0,0 +1,51 @@
|
|||
/*
|
||||
* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <AK/LexicalPath.h>
|
||||
#include <DevTools/HackStudio/LanguageServers/Cpp/ClientConnection.h>
|
||||
#include <LibCore/EventLoop.h>
|
||||
#include <LibCore/File.h>
|
||||
#include <LibCore/LocalServer.h>
|
||||
#include <LibIPC/ClientConnection.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
|
||||
int main(int, char**)
|
||||
{
|
||||
Core::EventLoop event_loop;
|
||||
if (pledge("stdio unix rpath", nullptr) < 0) {
|
||||
perror("pledge");
|
||||
return 1;
|
||||
}
|
||||
|
||||
auto socket = Core::LocalSocket::take_over_accepted_socket_from_system_server();
|
||||
IPC::new_client_connection<LanguageServers::Cpp::ClientConnection>(socket.release_nonnull(), 1);
|
||||
if (pledge("stdio rpath", nullptr) < 0) {
|
||||
perror("pledge");
|
||||
return 1;
|
||||
}
|
||||
return event_loop.exec();
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue