Checker class for numeric limit macro usage.
| 56 | |
| 57 | |
| 58 | class NumericLimitMacroChecker(FileContentChecker): |
| 59 | """Checker class for numeric limit macro usage.""" |
| 60 | |
| 61 | # Pre-compiled regex matching any numeric limit macro as a whole word. |
| 62 | # Built once at class load time instead of per-file for performance. |
| 63 | _MACRO_REGEX = re.compile(r"\b(" + "|".join(NUMERIC_LIMIT_MACROS) + r")\b") |
| 64 | |
| 65 | # Pre-computed type suggestion map (avoid rebuilding per call) |
| 66 | _TYPE_MAP: dict[str, str] = { |
| 67 | "UINT8_MAX": "fl::numeric_limits<uint8_t>::max()", |
| 68 | "UINT16_MAX": "fl::numeric_limits<uint16_t>::max()", |
| 69 | "UINT32_MAX": "fl::numeric_limits<uint32_t>::max()", |
| 70 | "UINT64_MAX": "fl::numeric_limits<uint64_t>::max()", |
| 71 | "INT8_MAX": "fl::numeric_limits<int8_t>::max()", |
| 72 | "INT8_MIN": "fl::numeric_limits<int8_t>::min()", |
| 73 | "INT16_MAX": "fl::numeric_limits<int16_t>::max()", |
| 74 | "INT16_MIN": "fl::numeric_limits<int16_t>::min()", |
| 75 | "INT32_MAX": "fl::numeric_limits<int32_t>::max()", |
| 76 | "INT32_MIN": "fl::numeric_limits<int32_t>::min()", |
| 77 | "INT64_MAX": "fl::numeric_limits<int64_t>::max()", |
| 78 | "INT64_MIN": "fl::numeric_limits<int64_t>::min()", |
| 79 | "SIZE_MAX": "fl::numeric_limits<size_t>::max()", |
| 80 | "UINTMAX_MAX": "fl::numeric_limits<uintmax_t>::max()", |
| 81 | "UINTPTR_MAX": "fl::numeric_limits<uintptr_t>::max()", |
| 82 | "INTMAX_MAX": "fl::numeric_limits<intmax_t>::max()", |
| 83 | "INTMAX_MIN": "fl::numeric_limits<intmax_t>::min()", |
| 84 | "INTPTR_MAX": "fl::numeric_limits<intptr_t>::max()", |
| 85 | "INTPTR_MIN": "fl::numeric_limits<intptr_t>::min()", |
| 86 | "UCHAR_MAX": "fl::numeric_limits<unsigned char>::max()", |
| 87 | "USHRT_MAX": "fl::numeric_limits<unsigned short>::max()", |
| 88 | "UINT_MAX": "fl::numeric_limits<unsigned int>::max()", |
| 89 | "ULONG_MAX": "fl::numeric_limits<unsigned long>::max()", |
| 90 | "ULLONG_MAX": "fl::numeric_limits<unsigned long long>::max()", |
| 91 | "CHAR_MAX": "fl::numeric_limits<char>::max()", |
| 92 | "CHAR_MIN": "fl::numeric_limits<char>::min()", |
| 93 | "SHRT_MAX": "fl::numeric_limits<short>::max()", |
| 94 | "SHRT_MIN": "fl::numeric_limits<short>::min()", |
| 95 | "INT_MAX": "fl::numeric_limits<int>::max()", |
| 96 | "INT_MIN": "fl::numeric_limits<int>::min()", |
| 97 | "LONG_MAX": "fl::numeric_limits<long>::max()", |
| 98 | "LONG_MIN": "fl::numeric_limits<long>::min()", |
| 99 | "LLONG_MAX": "fl::numeric_limits<long long>::max()", |
| 100 | "LLONG_MIN": "fl::numeric_limits<long long>::min()", |
| 101 | } |
| 102 | |
| 103 | def __init__(self): |
| 104 | self.violations: dict[str, list[tuple[int, str]]] = {} |
| 105 | |
| 106 | def should_process_file(self, file_path: str) -> bool: |
| 107 | """Check if file should be processed for numeric limit macro usage.""" |
| 108 | # Check file extension |
| 109 | if not file_path.endswith((".cpp", ".h", ".hpp", ".ino")): |
| 110 | return False |
| 111 | |
| 112 | # Check if file is in excluded list |
| 113 | if any(file_path.endswith(excluded) for excluded in EXCLUDED_FILES): |
| 114 | return False |
| 115 |