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//===- ArgumentsAdjusters.h - Command line arguments adjuster ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares type ArgumentsAdjuster and functions to create several
// useful argument adjusters.
// ArgumentsAdjusters modify command line arguments obtained from a compilation
// database before they are used to run a frontend action.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLING_ARGUMENTSADJUSTERS_H
#define LLVM_CLANG_TOOLING_ARGUMENTSADJUSTERS_H
#include "clang/Basic/LLVM.h"
#include "llvm/ADT/StringRef.h"
#include <functional>
#include <string>
#include <vector>
namespace clang {
namespace tooling {
/// A sequence of command line arguments.
using CommandLineArguments = std::vector<std::string>;
/// A prototype of a command line adjuster.
///
/// Command line argument adjuster is responsible for command line arguments
/// modification before the arguments are used to run a frontend action.
using ArgumentsAdjuster = std::function<CommandLineArguments(
const CommandLineArguments &, StringRef Filename)>;
/// Gets an argument adjuster that converts input command line arguments
/// to the "syntax check only" variant.
ArgumentsAdjuster getClangSyntaxOnlyAdjuster();
/// Gets an argument adjuster which removes output-related command line
/// arguments.
ArgumentsAdjuster getClangStripOutputAdjuster();
/// Gets an argument adjuster which removes dependency-file
/// related command line arguments.
ArgumentsAdjuster getClangStripDependencyFileAdjuster();
enum class ArgumentInsertPosition { BEGIN, END };
/// Gets an argument adjuster which inserts \p Extra arguments in the
/// specified position.
ArgumentsAdjuster getInsertArgumentAdjuster(const CommandLineArguments &Extra,
ArgumentInsertPosition Pos);
/// Gets an argument adjuster which inserts an \p Extra argument in the
/// specified position.
ArgumentsAdjuster getInsertArgumentAdjuster(
const char *Extra,
ArgumentInsertPosition Pos = ArgumentInsertPosition::END);
/// Gets an argument adjuster which adjusts the arguments in sequence
/// with the \p First adjuster and then with the \p Second one.
ArgumentsAdjuster combineAdjusters(ArgumentsAdjuster First,
ArgumentsAdjuster Second);
} // namespace tooling
} // namespace clang
#endif // LLVM_CLANG_TOOLING_ARGUMENTSADJUSTERS_H
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