Class RaiseStandardError

mypyc/ir/ops.py:1212–1245

Raise built-in exception with an optional error string. We have a separate opcode for this for convenience and to generate smaller, more idiomatic C code.

@final
class RaiseStandardError(RegisterOp):
    """Raise built-in exception with an optional error string.

    We have a separate opcode for this for convenience and to
    generate smaller, more idiomatic C code.
    """

    # TODO: Make it more explicit at IR level that this always raises

    error_kind = ERR_FALSE

    VALUE_ERROR: Final = "ValueError"
    ASSERTION_ERROR: Final = "AssertionError"
    STOP_ITERATION: Final = "StopIteration"
    UNBOUND_LOCAL_ERROR: Final = "UnboundLocalError"
    RUNTIME_ERROR: Final = "RuntimeError"
    NAME_ERROR: Final = "NameError"
    ZERO_DIVISION_ERROR: Final = "ZeroDivisionError"
    INDEX_ERROR: Final = "IndexError"

    def __init__(self, class_name: str, value: str | Value | None, line: int) -> None:
        super().__init__(line)
        self.class_name = class_name
        self.value = value
        self.type = bool_rprimitive

    def sources(self) -> list[Value]:
        return []

    def set_sources(self, new: list[Value]) -> None:
        assert not new

    def accept(self, visitor: OpVisitor[T]) -> T:
        return visitor.visit_raise_standard_error(self)


# True steals all arguments, False steals none, a list steals those in matching positions