pola-rs/polars · error

Convertme to error

Error message

Convertme to error

What it means

Error "Convertme to error" thrown in pola-rs/polars.

Source

Thrown at crates/polars-compute/src/cast/mod.rs:140

        array.offsets().clone(),
        new_values,
        array.validity().cloned(),
    ))
}

fn cast_list_to_large_list(array: &ListArray<i32>, to_type: &ArrowDataType) -> ListArray<i64> {
    let offsets = array.offsets().into();

    ListArray::<i64>::new(
        to_type.clone(),
        offsets,
        array.values().clone(),
        array.validity().cloned(),
    )
}

fn cast_large_to_list(array: &ListArray<i64>, to_type: &ArrowDataType) -> ListArray<i32> {
    let offsets = array.offsets().try_into().expect("Convertme to error");

    ListArray::<i32>::new(
        to_type.clone(),
        offsets,
        array.values().clone(),
        array.validity().cloned(),
    )
}

fn cast_fixed_size_list_to_list<O: Offset>(
    fixed: &FixedSizeListArray,
    to_type: &ArrowDataType,
    options: CastOptionsImpl,
) -> PolarsResult<ListArray<O>> {
    let new_values = cast(
        fixed.values().as_ref(),
        ListArray::<O>::get_child_type(to_type),
        options,

View on GitHub (pinned to df599052da)

When it happens

Trigger: Thrown at crates/polars-compute/src/cast/mod.rs:140 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of pola-rs/polars@df599052da (2026-08-16). Data as JSON: /api/errors/1123974ce9d49ae0. Report an issue: GitHub.