// 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/lower/lower.h"

#include <memory>
#include <optional>

#include "toolchain/lower/context.h"
#include "toolchain/lower/file_context.h"

namespace Carbon::Lower {

auto LowerToLLVM(llvm::LLVMContext& llvm_context,
                 llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> fs,
                 std::optional<llvm::ArrayRef<Parse::GetTreeAndSubtreesFn>>
                     tree_and_subtrees_getters_for_debug_info,
                 llvm::StringRef module_name, const SemIR::File& sem_ir,
                 const SemIR::InstNamer* inst_namer,
                 llvm::raw_ostream* vlog_stream)
    -> std::unique_ptr<llvm::Module> {
  Context context(llvm_context, std::move(fs),
                  tree_and_subtrees_getters_for_debug_info, module_name,
                  vlog_stream);
  context.GetFileContext(&sem_ir, inst_namer).LowerDefinitions();
  return std::move(context).Finalize();
}

}  // namespace Carbon::Lower