Files
carbon-lang/toolchain/driver/language_server_subcommand.cpp
T
Jon Ross-Perkins 4f024410f7 Add stdin to driver's streams, and refactor stream passing (#4812)
The language server needs stdin, and for tests we should be passing it
around. My intent is to pass in a faux stdin to Driver for language
server tests.

As long as I'm adding a new parameter, I was looking at also changing
the way streams are passed in to Driver for style (pointers since
they're held past construction lifetime). Since these are all stored in
DriverEnv, I thought it might be a net improvement to use the struct
directly, getting more explicit parameter names and also removing the
need for `SetFuzzing`.

I'm trying here to avoid functional changes, but there are a couple
additional fixes like removing an obsolete `find_insensitive` and
refactoring how `ValidateOptions` handles errors (because it reduces the
number of spots that operate on error_stream).
2025-01-21 16:52:05 +00:00

37 lines
1.0 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/driver/language_server_subcommand.h"
#include "toolchain/language_server/language_server.h"
namespace Carbon {
static constexpr CommandLine::CommandInfo SubcommandInfo = {
.name = "language-server",
.help = R"""(
Runs the language server.
)""",
};
LanguageServerSubcommand::LanguageServerSubcommand()
: DriverSubcommand(SubcommandInfo) {}
auto LanguageServerSubcommand::Run(DriverEnv& driver_env) -> DriverResult {
if (!driver_env.input_stream) {
*driver_env.error_stream
<< "error: language-server requires input_stream\n";
}
auto err =
LanguageServer::Run(driver_env.input_stream, *driver_env.output_stream,
*driver_env.error_stream);
if (!err.ok()) {
*driver_env.error_stream << "error: " << err.error() << "\n";
}
return {.success = err.ok()};
}
} // namespace Carbon