Class RStruct

mypyc/ir/rtypes.py:894–952

C struct type

@final
class RStruct(RType):
    """C struct type"""

    def __init__(self, name: str, names: list[str], types: list[RType]) -> None:
        self.name = name
        self.names = names
        self.types = types
        self.is_refcounted = any(t.is_refcounted for t in self.types)

        # generate dummy names
        if len(self.names) < len(self.types):
            for i in range(len(self.types) - len(self.names)):
                self.names.append("_item" + str(i))
        self.offsets, self.size = compute_aligned_offsets_and_size(types)
        self._ctype = name

    def field_type(self, name: str) -> RType:
        for n, t in zip(self.names, self.types):
            if n == name:
                return t
        assert False, f"{self.name} has no field '{name}'"

    def accept(self, visitor: RTypeVisitor[T]) -> T:
        return visitor.visit_rstruct(self)

    @property
    def may_be_immortal(self) -> bool:
        return False

    def __str__(self) -> str:
        # if not tuple(unnamed structs)
        return "{}{{{}}}".format(
            self.name,
            ", ".join(name + ":" + str(typ) for name, typ in zip(self.names, self.types)),
        )

    def __repr__(self) -> str:
        return "<RStruct {}{{{}}}>".format(
            self.name,
            ", ".join(name + ":" + repr(typ) for name, typ in zip(self.names, self.types)),
        )

    def __eq__(self, other: object) -> TypeGuard[RStruct]:
        return (
            isinstance(other, RStruct)
            and self.name == other.name
            and self.names == other.names
            and self.types == other.types
        )

    def __hash__(self) -> int:
        return hash((self.name, tuple(self.names), tuple(self.types)))

    def serialize(self) -> JsonDict:
        assert False

    @classmethod
    def deserialize(cls, data: JsonDict, ctx: DeserMaps) -> RStruct: