// 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

#ifndef CARBON_TOOLCHAIN_DRIVER_DRIVER_SUBCOMMAND_H_
#define CARBON_TOOLCHAIN_DRIVER_DRIVER_SUBCOMMAND_H_

#include "common/ostream.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "toolchain/driver/driver_env.h"
#include "toolchain/install/install_paths.h"

namespace Carbon {

// The result of a driver run.
struct DriverResult {
  // Overall success result.
  bool success;

  // Per-file success results. May be empty if files aren't individually
  // processed.
  llvm::SmallVector<std::pair<std::string, bool>> per_file_success;
};

// A subcommand for the driver.
class DriverSubcommand {
 public:
  virtual auto Run(DriverEnv& driver_env) -> DriverResult = 0;
};

}  // namespace Carbon

#endif  // CARBON_TOOLCHAIN_DRIVER_DRIVER_SUBCOMMAND_H_