Class TempNode

mypy/nodes.py:3545–3575

Temporary dummy node used during type checking. This node is not present in the original program; it is just an artifact of the type checker implementation. It only represents an opaque node with some fixed type.

class TempNode(Expression):
    """Temporary dummy node used during type checking.

    This node is not present in the original program; it is just an artifact
    of the type checker implementation. It only represents an opaque node with
    some fixed type.
    """

    __slots__ = ("type", "no_rhs")

    type: mypy.types.Type
    # Is this TempNode used to indicate absence of a right hand side in an annotated assignment?
    # (e.g. for 'x: int' the rvalue is TempNode(AnyType(TypeOfAny.special_form), no_rhs=True))
    no_rhs: bool

    def __init__(
        self, typ: mypy.types.Type, no_rhs: bool = False, *, context: Context | None = None
    ) -> None:
        """Construct a dummy node; optionally borrow line/column from context object."""
        super().__init__()
        self.type = typ
        self.no_rhs = no_rhs
        if context is not None:
            self.line = context.line
            self.column = context.column

    def __repr__(self) -> str:
        return "TempNode:%d(%s)" % (self.line, str(self.type))

    def accept(self, visitor: ExpressionVisitor[T]) -> T:
        return visitor.visit_temp_node(self)


# Special attributes not collected as protocol members by Python 3.12