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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-PerkinsandChandler Carruth
c107aaad13
This makes something like `bazel run :toolchain -- clang -- -c test.cpp` work, because that can be run in-process. Note that `bazel run :toolchain -- clang -- test.cpp` still requires subprocessing, and does not work. Note, the vision here is that we are trying to align how clang and carbon compile c++ code. This is work towards intertwining command execution. --------- Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
51 lines
1.6 KiB
C++
51 lines
1.6 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/driver/clang_subcommand.h"
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#include "llvm/TargetParser/Host.h"
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#include "toolchain/driver/clang_runner.h"
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namespace Carbon {
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constexpr CommandLine::CommandInfo ClangOptions::Info = {
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.name = "clang",
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.help = R"""(
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Runs Clang on arguments.
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This is equivalent to running the `clang` command line directly, and provides
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the full command line interface.
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Use `carbon clang -- ARGS` to pass flags to `clang`. Although there are
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currently no flags for `carbon clang`, the `--` reserves the ability to add
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flags in the future.
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This is provided to help guarantee consistent compilation of C++ files, both
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when Clang is invoked directly and when a Carbon file importing a C++ file
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results in an indirect Clang invocation.
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)""",
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};
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auto ClangOptions::Build(CommandLine::CommandBuilder& b) -> void {
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b.AddStringPositionalArg(
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{
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.name = "ARG",
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.help = R"""(
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Arguments passed to Clang.
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)""",
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},
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[&](auto& arg_b) { arg_b.Append(&args); });
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}
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// TODO: This lacks a lot of features from the main driver code. We may need to
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// add more.
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// https://github.com/llvm/llvm-project/blob/main/clang/tools/driver/driver.cpp
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auto ClangSubcommand::Run(DriverEnv& driver_env) -> DriverResult {
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std::string target = llvm::sys::getDefaultTargetTriple();
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ClangRunner runner(driver_env.installation, target, driver_env.vlog_stream);
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return {.success = runner.Run(options_.args)};
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}
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} // namespace Carbon
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