Function handle_default

crates/stdlib/src/bisect.rs:25–29

(arg: OptionalArg<ArgIndex>, vm: &VirtualMachine)

    // Handles objects that implement __index__ and makes sure index fits in needed isize.
    #[inline]
    fn handle_default(arg: OptionalArg<ArgIndex>, vm: &VirtualMachine) -> PyResult<Option<isize>> {
        arg.into_option()
            .map(|v| v.into_int_ref().try_to_primitive(vm))
            .transpose()
    }

    // Handles defaults for lo, hi.
    //