Function expect_needs_data

parquet/src/arrow/push_decoder/mod.rs:2152–2159

Expect that the [`DecodeResult`] is a [`DecodeResult::NeedsData`] and return the corresponding ranges

(
        result: Result<DecodeResult<T>, ParquetError>,
    )

    /// Expect that the [`DecodeResult`] is a [`DecodeResult::NeedsData`] and return the corresponding ranges
    fn expect_needs_data<T: Debug>(
        result: Result<DecodeResult<T>, ParquetError>,
    ) -> Vec<Range<u64>> {
        match result.expect("Expected Ok(DecodeResult::NeedsData{ranges})") {
            DecodeResult::NeedsData(ranges) => ranges,
            result => panic!("Expected DecodeResult::NeedsData, got {result:?}"),
        }
    }

    fn expect_finished<T: Debug>(result: Result<DecodeResult<T>, ParquetError>) {
        match result.expect("Expected Ok(DecodeResult::Finished)") {