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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-PerkinsandChandler Carruth
7befe2ce9f
This switches most error printing to use diagnostics instead of direct stream writes, even when not a specific file diagnostic. I'm allowing empty filenames for this use-case. This allows a little more specific testing to validate coverage of output using the diagnostic coverage test. I'm adding a few tests to cover things that weren't previously tested. Separately, this also forces a little more standardization in format... considering how changes like #4568 show effort being spent to _mirror_ diagnostic style, my thought is now to just use diagnostic code where possible. Note this also allows incrementally better testing of the language server; I'm changing the crash fix from #4847 in favor of diagnostic testing. --------- Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "toolchain/language_server/language_server.h"
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#include "clang-tools-extra/clangd/LSPBinder.h"
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#include "clang-tools-extra/clangd/Transport.h"
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#include "clang-tools-extra/clangd/support/Logger.h"
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#include "common/raw_string_ostream.h"
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#include "toolchain/diagnostics/diagnostic_emitter.h"
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#include "toolchain/language_server/context.h"
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#include "toolchain/language_server/incoming_messages.h"
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#include "toolchain/language_server/outgoing_messages.h"
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namespace Carbon::LanguageServer {
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auto Run(FILE* input_stream, llvm::raw_ostream& output_stream,
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llvm::raw_ostream& error_stream, DiagnosticConsumer& consumer)
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-> bool {
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// TODO: Consider implementing a custom logger that splits vlog to
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// vlog_stream when provided. For now, this disables verbose logging.
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clang::clangd::StreamLogger logger(error_stream, clang::clangd::Logger::Info);
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clang::clangd::LoggingSession logging_session(logger);
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// Set up the connection.
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std::unique_ptr<clang::clangd::Transport> transport(
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clang::clangd::newJSONTransport(input_stream, output_stream,
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/*InMirror=*/nullptr,
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/*Pretty=*/true));
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Context context;
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// TODO: Use error_stream in IncomingMessages to report dropped errors.
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IncomingMessages incoming(transport.get(), &context);
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OutgoingMessages outgoing(transport.get());
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// Run the server loop.
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llvm::Error err = transport->loop(incoming);
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if (err) {
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RawStringOstream out;
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out << err;
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CARBON_DIAGNOSTIC(LanguageServerTransportError, Error, "{0}", std::string);
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NoLocDiagnosticEmitter emitter(&consumer);
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emitter.Emit(LanguageServerTransportError, out.TakeStr());
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return false;
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}
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return true;
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}
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} // namespace Carbon::LanguageServer
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