File: ClangFormatFuzzer.cpp

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//===-- ClangFormatFuzzer.cpp - Fuzz the Clang format tool ----------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief This file implements a function that runs Clang format on a single
///  input. This function is then linked into the Fuzzer library.
///
//===----------------------------------------------------------------------===//

#include "clang/Format/Format.h"

extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size) {
  // FIXME: fuzz more things: different styles, different style features.
  std::string s((const char *)data, size);
  auto Style = getGoogleStyle(clang::format::FormatStyle::LK_Cpp);
  Style.ColumnLimit = 60;
  applyAllReplacements(s, clang::format::reformat(
                              Style, s, {clang::tooling::Range(0, s.size())}));
  return 0;
}