NS_IMETHODIMP
Row::GetInt64(uint32_t aIndex,
              int64_t *_value)
{
  ENSURE_INDEX_VALUE(aIndex, mNumCols);
  return mData.ObjectAt(aIndex)->GetAsInt64(_value);
}

NS_IMETHODIMP
Row::GetInt32(PRUint32 aIndex,
              PRInt32 *_value)
{
  ENSURE_INDEX_VALUE(aIndex, mNumCols);
  return mData.ObjectAt(aIndex)->GetAsInt32(_value);
}

NS_IMETHODIMP
Statement::GetTypeOfIndex(uint32_t aIndex,
                          int32_t *_type)
{
  if (!mDBStatement)
    return NS_ERROR_NOT_INITIALIZED;

  ENSURE_INDEX_VALUE(aIndex, mResultColumnCount);

  if (!mExecuting)
    return NS_ERROR_UNEXPECTED;

  int t = ::sqlite3_column_type(mDBStatement, aIndex);
  switch (t) {
    case SQLITE_INTEGER:
      *_type = mozIStorageStatement::VALUE_TYPE_INTEGER;
      break;
    case SQLITE_FLOAT:
      *_type = mozIStorageStatement::VALUE_TYPE_FLOAT;
      break;
    case SQLITE_TEXT:
      *_type = mozIStorageStatement::VALUE_TYPE_TEXT;
      break;
    case SQLITE_BLOB:
      *_type = mozIStorageStatement::VALUE_TYPE_BLOB;
      break;
    case SQLITE_NULL:
      *_type = mozIStorageStatement::VALUE_TYPE_NULL;
      break;
    default:
      return NS_ERROR_FAILURE;
  }

  return NS_OK;
}

NS_IMETHODIMP
ArgValueArray::GetDouble(uint32_t aIndex,
                         double *_value)
{
  ENSURE_INDEX_VALUE(aIndex, mArgc);

  *_value = ::sqlite3_value_double(mArgv[aIndex]);
  return NS_OK;
}

NS_IMETHODIMP
BindingParams::BindByIndex(uint32_t aIndex,
                           nsIVariant *aValue)
{
  NS_ENSURE_FALSE(mLocked, NS_ERROR_UNEXPECTED);
  ENSURE_INDEX_VALUE(aIndex, mParamCount);

  // Store the variant for later use.
  NS_ENSURE_TRUE(mParameters.ReplaceObjectAt(aValue, aIndex),
                 NS_ERROR_OUT_OF_MEMORY);
  return NS_OK;
}

NS_IMETHODIMP
BindingParams::BindByIndex(uint32_t aIndex,
                           nsIVariant *aValue)
{
  NS_ENSURE_FALSE(mLocked, NS_ERROR_UNEXPECTED);
  ENSURE_INDEX_VALUE(aIndex, mParamCount);

  // Store the variant for later use.
  RefPtr<Variant_base> variant = convertVariantToStorageVariant(aValue);
  if (!variant)
    return NS_ERROR_UNEXPECTED;
  if (mParameters.Length() <= aIndex) {
    (void)mParameters.SetLength(aIndex);
    (void)mParameters.AppendElement(variant);
  }
  else {
    NS_ENSURE_TRUE(mParameters.ReplaceElementAt(aIndex, variant),
                   NS_ERROR_OUT_OF_MEMORY);
  }
  return NS_OK;
}