def _get_unused_ignore_codes()

in tools/upgrade/errors.py [0:0]

• 17 lines of code
• 8 McCabe index (conditional complexity)

def _get_unused_ignore_codes(errors: List[Dict[str, str]]) -> List[int]:
    unused_ignore_codes: List[int] = []
    ignore_errors = [error for error in errors if error["code"] == "0"]
    for error in ignore_errors:
        match = re.search(
            r"The `pyre-ignore\[(.*?)\]` or `pyre-fixme\[.*?\]`", error["description"]
        )
        if match:
            unused_ignore_codes.extend(
                int_code
                for int_code in (
                    _str_to_int(code.strip()) for code in match.group(1).split(",")
                )
                if int_code is not None
            )
    unused_ignore_codes.sort()
    return unused_ignore_codes