Function _recover_functions

adapters/python/adapter_template.py:72–113

(instr: bytes, base_va: int)

        "na",
        "todo",
        "tbd",
        "unknown",
        "<unknown>",
        "unnamed",
        "anonymous",
        "placeholder",
        "undefined",
    ]
)

EXACT_LOWERCASE_PLACEHOLDERS = frozenset(["none", "null", "nil"])


class BackendUnavailable(Exception):
    """The backend's tooling is not installed. Distinct from it failing."""


class BackendFailed(Exception):
    """The backend ran and could not produce a model."""


def _is_placeholder(text: str) -> bool:
    t = text.strip()
    return t in EXACT_LOWERCASE_PLACEHOLDERS or t.lower() in CASE_INSENSITIVE_PLACEHOLDERS

def _usable_value(text: str) -> bool:
    return bool(text) and not _is_placeholder(text)


# --------------------------------------------------------------------------
# protocol v1
# --------------------------------------------------------------------------


def _sha256(data: bytes) -> str:
    return hashlib.sha256(data).hexdigest()


def _load_request(path: Path) -> dict:
    try:
        request = json.loads(path.read_text(encoding="utf-8"))
    except (OSError, json.JSONDecodeError) as exc:
        raise ValueError(f"request is not readable JSON: {exc}") from exc
    if request.get("protocol_major") != PROTOCOL_MAJOR:
        raise ValueError(