C++ TextDiagnosticBuffer::err_begin方法代码示例

/// CheckResults - This compares the expected results to those that
/// were actually reported. It emits any discrepencies. Return "true" if there
/// were problems. Return "false" otherwise.
static unsigned CheckResults(DiagnosticsEngine &Diags, SourceManager &SourceMgr,
                             const TextDiagnosticBuffer &Buffer,
                             ExpectedData &ED) {
  // We want to capture the delta between what was expected and what was
  // seen.
  //
  //   Expected \ Seen - set expected but not seen
  //   Seen \ Expected - set seen but not expected
  unsigned NumProblems = 0;

  const DiagnosticLevelMask DiagMask =
    Diags.getDiagnosticOptions().getVerifyIgnoreUnexpected();

  // See if there are error mismatches.
  NumProblems += CheckLists(Diags, SourceMgr, "error", ED.Errors,
                            Buffer.err_begin(), Buffer.err_end(),
                            bool(DiagnosticLevelMask::Error & DiagMask));

  // See if there are warning mismatches.
  NumProblems += CheckLists(Diags, SourceMgr, "warning", ED.Warnings,
                            Buffer.warn_begin(), Buffer.warn_end(),
                            bool(DiagnosticLevelMask::Warning & DiagMask));

  // See if there are remark mismatches.
  NumProblems += CheckLists(Diags, SourceMgr, "remark", ED.Remarks,
                            Buffer.remark_begin(), Buffer.remark_end(),
                            bool(DiagnosticLevelMask::Remark & DiagMask));

  // See if there are note mismatches.
  NumProblems += CheckLists(Diags, SourceMgr, "note", ED.Notes,
                            Buffer.note_begin(), Buffer.note_end(),
                            bool(DiagnosticLevelMask::Note & DiagMask));

  return NumProblems;
}

/// This compares the expected results to those that were actually reported.
/// It emits any discrepencies. Return "true" if there were problems. Return
/// "false" otherwise.
static unsigned CheckResults(DiagnosticsEngine &Diags,
                             llvm::SourceMgr &SourceMgr,
                             const TextDiagnosticBuffer &Buffer,
                             ExpectedData &ED) {
  // We want to capture the delta between what was expected and what was
  // seen.
  //
  //   Expected \ Seen - set expected but not seen
  //   Seen \ Expected - set seen but not expected
  unsigned NumProblems = 0;

  // See if there are error mismatches.
  NumProblems += CheckLists(Diags, SourceMgr, "error", ED.Errors,
                            Buffer.err_begin(), Buffer.err_end());

  // See if there are note mismatches.
  NumProblems += CheckLists(Diags, SourceMgr, "note", ED.Notes,
                            Buffer.note_begin(), Buffer.note_end());

  return NumProblems;
}

CXRemapping clang_getRemappingsFromFileList(const char **filePaths,
                                            unsigned numFiles) {
  bool Logging = ::getenv("LIBCLANG_LOGGING");

  std::unique_ptr<Remap> remap(new Remap());

  if (numFiles == 0) {
    if (Logging)
      llvm::errs() << "clang_getRemappingsFromFileList was called with "
                      "numFiles=0\n";
    return remap.release();
  }

  if (!filePaths) {
    if (Logging)
      llvm::errs() << "clang_getRemappingsFromFileList was called with "
                      "NULL filePaths\n";
    return 0;
  }

  TextDiagnosticBuffer diagBuffer;
  SmallVector<StringRef, 32> Files;
  for (unsigned i = 0; i != numFiles; ++i)
    Files.push_back(filePaths[i]);

  bool err = arcmt::getFileRemappingsFromFileList(remap->Vec, Files,
                                                  &diagBuffer);

  if (err) {
    if (Logging) {
      llvm::errs() << "Error by clang_getRemappingsFromFileList\n";
      for (TextDiagnosticBuffer::const_iterator
             I = diagBuffer.err_begin(), E = diagBuffer.err_end(); I != E; ++I)
        llvm::errs() << I->second << '\n';
    }
    return remap.release();
  }

  return remap.release();
}

CXRemapping clang_getRemappings(const char *migrate_dir_path) {
  bool Logging = ::getenv("LIBCLANG_LOGGING");

  if (!migrate_dir_path) {
    if (Logging)
      llvm::errs() << "clang_getRemappings was called with NULL parameter\n";
    return 0;
  }

  bool exists = false;
  llvm::sys::fs::exists(migrate_dir_path, exists);
  if (!exists) {
    if (Logging) {
      llvm::errs() << "Error by clang_getRemappings(\"" << migrate_dir_path
                   << "\")\n";
      llvm::errs() << "\"" << migrate_dir_path << "\" does not exist\n";
    }
    return 0;
  }

  TextDiagnosticBuffer diagBuffer;
  llvm::OwningPtr<Remap> remap(new Remap());

  bool err = arcmt::getFileRemappings(remap->Vec, migrate_dir_path,&diagBuffer);

  if (err) {
    if (Logging) {
      llvm::errs() << "Error by clang_getRemappings(\"" << migrate_dir_path
                   << "\")\n";
      for (TextDiagnosticBuffer::const_iterator
             I = diagBuffer.err_begin(), E = diagBuffer.err_end(); I != E; ++I)
        llvm::errs() << I->second << '\n';
    }
    return 0;
  }

  return remap.take();
}