Function _apply_fixes

ci/lint/clang_tidy/noexcept_platforms.py:260–310

Apply FL_NOEXCEPT insertions to source files. Returns (changes_applied, files_modified).

(hits: list[tuple[str, int, str]], dry_run: bool)

def _apply_fixes(hits: list[tuple[str, int, str]], dry_run: bool) -> tuple[int, int]:
    """Apply FL_NOEXCEPT insertions to source files.

    Returns (changes_applied, files_modified).
    """
    # Group hits by file
    by_file: dict[str, list[int]] = {}
    for filepath, line_num, _ in hits:
        by_file.setdefault(filepath, []).append(line_num)

    total_changes = 0
    total_files = 0

    for filepath in sorted(by_file):
        full_path = PROJECT_ROOT / filepath
        if not full_path.exists():
            continue

        content = full_path.read_text(encoding="utf-8", errors="replace")
        lines = content.split("\n")
        file_changes = 0

        for line_num in sorted(by_file[filepath]):
            if line_num < 1 or line_num > len(lines):
                continue

            old_line = lines[line_num - 1]
            new_line = _insert_fl_noexcept(old_line)

            if new_line is not None and new_line != old_line:
                if dry_run:
                    print(f"  {filepath}:{line_num}")
                    print(f"    - {old_line.strip()}")
                    print(f"    + {new_line.strip()}")
                lines[line_num - 1] = new_line
                file_changes += 1

        if file_changes > 0:
            include_added = _ensure_include(lines)

            if not dry_run:
                full_path.write_text("\n".join(lines), encoding="utf-8")
                print(
                    f"  {filepath}: {file_changes} changes"
                    f"{' (+include)' if include_added else ''}"
                )

            total_changes += file_changes
            total_files += 1

    return total_changes, total_files


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