Class NoexceptFunctionChecker

ci/lint_cpp/noexcept_checker.py:220–308

Checker that enforces FL_NOEXCEPT on functions in src/fl/ and src/platforms/. Supersedes the former NoexceptFlChecker, NoexceptEsp32Checker, and NoexceptPlatformsChecker — all consolidated into this single class.

class NoexceptFunctionChecker(FileContentChecker):
    """Checker that enforces FL_NOEXCEPT on functions in src/fl/ and src/platforms/.

    Supersedes the former NoexceptFlChecker, NoexceptEsp32Checker, and
    NoexceptPlatformsChecker — all consolidated into this single class.
    """

    def __init__(self) -> None:
        self.violations: dict[str, list[tuple[int, str]]] = {}

    def should_process_file(self, file_path: str) -> bool:
        normalized = file_path.replace("\\", "/")
        # Must be in src/fl/ or src/platforms/ (accept both absolute and relative)
        in_fl = "/src/fl/" in normalized or normalized.startswith("src/fl/")
        in_platforms = "platforms/" in normalized
        if not in_fl and not in_platforms:
            return False
        # Only check header files — .cpp.hpp implementation files have too many
        # variable declarations and function calls that look like declarations to
        # regex. Use the AST-based refactor tool for .cpp.hpp files.
        if normalized.endswith(".cpp.hpp") or normalized.endswith(".cpp"):
            return False
        if not normalized.endswith((".h", ".hpp")):
            return False
        # Skip the noexcept macro definition itself
        if normalized.endswith("noexcept.h") or normalized.endswith(
            "fl/stl/noexcept.h"
        ):
            return False
        if "compile_test" in normalized or "ASM_2_C_SHIM" in normalized:
            return False
        if "/third_party/" in normalized:
            return False
        return True

    def check_file_content(self, file_content: FileContent) -> list[str]:
        if "(" not in file_content.content:
            return []

        violations: list[tuple[int, str]] = []
        in_multiline_comment = False

        for line_number, line in enumerate(file_content.lines, 1):
            stripped = line.strip()

            if "/*" in stripped:
                in_multiline_comment = True
            if "*/" in stripped:
                in_multiline_comment = False
                continue
            if in_multiline_comment:
                continue
            if stripped.startswith("//"):
                continue

            code = stripped.split("//")[0].strip()
            if not code or "(" not in code:
                continue