Method saturate

crates/vm/src/sequence.rs:156–164

(self, len: usize, vm: &VirtualMachine)

impl OptionalRangeArgs {
    pub fn saturate(self, len: usize, vm: &VirtualMachine) -> PyResult<(usize, usize)> {
        let saturate = |obj: PyObjectRef| -> PyResult<_> {
            obj.try_into_value(vm)
                .map(|int: PyIntRef| int.as_bigint().saturated_at(len))
        };
        let start = self.start.map_or(Ok(0), saturate)?;
        let stop = self.stop.map_or(Ok(len), saturate)?;
        Ok((start, stop))
    }
}