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Tuple expression

woke.ast.ir.expression.tuple_expression module #

TupleExpression class #

Bases: ExpressionAbc

TBD

Source code in woke/ast/ir/expression/tuple_expression.py 
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class TupleExpression(ExpressionAbc):
    """
    TBD
    """

    _ast_node: SolcTupleExpression
    _parent: SolidityAbc  # TODO: make this more specific

    _components: List[Optional[ExpressionAbc]]
    _is_inline_array: bool

    def __init__(
        self,
        init: IrInitTuple,
        tuple_expression: SolcTupleExpression,
        parent: SolidityAbc,
    ):
        super().__init__(init, tuple_expression, parent)
        self._is_inline_array = tuple_expression.is_inline_array

        self._components = []
        for component in tuple_expression.components:
            if component is None:
                self._components.append(None)
            else:
                self._components.append(ExpressionAbc.from_ast(init, component, self))

    def __iter__(self) -> Iterator[IrAbc]:
        yield self
        for component in self._components:
            if component is not None:
                yield from component

    @property
    def parent(self) -> SolidityAbc:
        return self._parent

    @property
    def is_inline_array(self) -> bool:
        return self._is_inline_array

    @property
    def components(self) -> Tuple[Optional[ExpressionAbc], ...]:
        return tuple(self._components)

    @property
    @lru_cache(maxsize=2048)
    def is_ref_to_state_variable(self) -> bool:
        return any(
            component.is_ref_to_state_variable
            for component in self._components
            if component is not None
        )

    @property
    @lru_cache(maxsize=2048)
    def modifies_state(self) -> Set[Tuple[IrAbc, ModifiesStateFlag]]:
        return reduce(
            or_,
            (
                component.modifies_state
                for component in self._components
                if component is not None
            ),
            set(),
        )