//===-- APINotesTest.cpp - API Notes Testing Tool ------------------ C++ --===//

//

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://llvm.org/LICENSE.txt for license information.

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//

//===----------------------------------------------------------------------===//

#include "clang/APINotes/APINotesYAMLCompiler.h"

#include "llvm/Support/CommandLine.h"

#include "llvm/Support/FileSystem.h"

#include "llvm/Support/MemoryBuffer.h"

#include "llvm/Support/Signals.h"

#include "llvm/Support/ToolOutputFile.h"

#include "llvm/Support/WithColor.h"

static llvm::cl::list<std::string> APINotes(llvm::cl::Positional,

                                            llvm::cl::desc("[<apinotes> ...]"),

                                            llvm::cl::Required);

static llvm::cl::opt<std::string>

    OutputFileName("o", llvm::cl::desc("output filename"),

                   llvm::cl::value_desc("filename"), llvm::cl::init("-"));

int main(int argc, const char **argv) {

  const bool DisableCrashReporting = true;

  llvm::sys::PrintStackTraceOnErrorSignal(argv[0], DisableCrashReporting);

  llvm::cl::ParseCommandLineOptions(argc, argv);

  auto Error = [](const llvm::Twine &Msg) {

    llvm::WithColor::error(llvm::errs(), "apinotes-test") << Msg << '\n';

  };

  std::error_code EC;

  auto Out = std::make_unique<llvm::ToolOutputFile>(OutputFileName, EC,

                                                    llvm::sys::fs::OF_None);

  if (EC) {

    Error("failed to open '" + OutputFileName + "': " + EC.message());

    return EXIT_FAILURE;

  }

  for (const std::string &Notes : APINotes) {

    llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> NotesOrError =

        llvm::MemoryBuffer::getFileOrSTDIN(Notes);

    if (std::error_code EC = NotesOrError.getError()) {

      llvm::errs() << EC.message() << '\n';

      return EXIT_FAILURE;

    }

    clang::api_notes::parseAndDumpAPINotes((*NotesOrError)->getBuffer(),

                                           Out->os());

  }

  return EXIT_SUCCESS;

}