Files
carbon-lang/toolchain/language_server/language_server.cpp
T
Jon Ross-Perkins 8727445656 Add a framework for LSP testing. (#4841)
Also adds tests for exit and initialize, just basic things.
2025-01-27 16:15:04 +00:00

46 lines
1.7 KiB
C++

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "toolchain/language_server/language_server.h"
#include "clang-tools-extra/clangd/LSPBinder.h"
#include "clang-tools-extra/clangd/Transport.h"
#include "clang-tools-extra/clangd/support/Logger.h"
#include "common/raw_string_ostream.h"
#include "toolchain/language_server/context.h"
#include "toolchain/language_server/incoming_messages.h"
#include "toolchain/language_server/outgoing_messages.h"
namespace Carbon::LanguageServer {
auto Run(FILE* input_stream, llvm::raw_ostream& output_stream,
llvm::raw_ostream& error_stream) -> ErrorOr<Success> {
// TODO: Consider implementing a custom logger that splits vlog to
// vlog_stream when provided. For now, this disables verbose logging.
clang::clangd::StreamLogger logger(error_stream, clang::clangd::Logger::Info);
clang::clangd::LoggingSession logging_session(logger);
// Set up the connection.
std::unique_ptr<clang::clangd::Transport> transport(
clang::clangd::newJSONTransport(input_stream, output_stream,
/*InMirror=*/nullptr,
/*Pretty=*/true));
Context context;
// TODO: Use error_stream in IncomingMessages to report dropped errors.
IncomingMessages incoming(transport.get(), &context);
OutgoingMessages outgoing(transport.get());
// Run the server loop.
llvm::Error err = transport->loop(incoming);
if (err) {
RawStringOstream out;
out << err;
return Error(out.TakeStr());
} else {
return Success();
}
}
} // namespace Carbon::LanguageServer