polars_core/series/implementations/
object.rs

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1use std::any::Any;
2use std::borrow::Cow;
3
4use self::compare_inner::TotalOrdInner;
5use super::{BitRepr, StatisticsFlags, *};
6use crate::chunked_array::cast::CastOptions;
7use crate::chunked_array::object::PolarsObjectSafe;
8use crate::chunked_array::ops::compare_inner::{IntoTotalEqInner, TotalEqInner};
9use crate::prelude::*;
10use crate::series::implementations::SeriesWrap;
11use crate::series::private::{PrivateSeries, PrivateSeriesNumeric};
12
13impl<T: PolarsObject> PrivateSeriesNumeric for SeriesWrap<ObjectChunked<T>> {
14    fn bit_repr(&self) -> Option<BitRepr> {
15        None
16    }
17}
18
19impl<T> PrivateSeries for SeriesWrap<ObjectChunked<T>>
20where
21    T: PolarsObject,
22{
23    fn get_list_builder(
24        &self,
25        _name: PlSmallStr,
26        _values_capacity: usize,
27        _list_capacity: usize,
28    ) -> Box<dyn ListBuilderTrait> {
29        ObjectChunked::<T>::get_list_builder(_name, _values_capacity, _list_capacity)
30    }
31
32    fn compute_len(&mut self) {
33        self.0.compute_len()
34    }
35
36    fn _field(&self) -> Cow<Field> {
37        Cow::Borrowed(self.0.ref_field())
38    }
39
40    fn _dtype(&self) -> &DataType {
41        self.0.dtype()
42    }
43
44    fn _set_flags(&mut self, flags: StatisticsFlags) {
45        self.0.set_flags(flags)
46    }
47    fn _get_flags(&self) -> StatisticsFlags {
48        self.0.get_flags()
49    }
50    unsafe fn agg_list(&self, groups: &GroupsType) -> Series {
51        self.0.agg_list(groups)
52    }
53
54    fn into_total_eq_inner<'a>(&'a self) -> Box<dyn TotalEqInner + 'a> {
55        (&self.0).into_total_eq_inner()
56    }
57    fn into_total_ord_inner<'a>(&'a self) -> Box<dyn TotalOrdInner + 'a> {
58        invalid_operation_panic!(into_total_ord_inner, self)
59    }
60
61    fn vec_hash(
62        &self,
63        random_state: PlSeedableRandomStateQuality,
64        buf: &mut Vec<u64>,
65    ) -> PolarsResult<()> {
66        self.0.vec_hash(random_state, buf)?;
67        Ok(())
68    }
69
70    fn vec_hash_combine(
71        &self,
72        build_hasher: PlSeedableRandomStateQuality,
73        hashes: &mut [u64],
74    ) -> PolarsResult<()> {
75        self.0.vec_hash_combine(build_hasher, hashes)?;
76        Ok(())
77    }
78
79    #[cfg(feature = "algorithm_group_by")]
80    fn group_tuples(&self, multithreaded: bool, sorted: bool) -> PolarsResult<GroupsType> {
81        IntoGroupsType::group_tuples(&self.0, multithreaded, sorted)
82    }
83    #[cfg(feature = "zip_with")]
84    fn zip_with_same_type(&self, mask: &BooleanChunked, other: &Series) -> PolarsResult<Series> {
85        self.0
86            .zip_with(mask, other.as_ref().as_ref())
87            .map(|ca| ca.into_series())
88    }
89}
90impl<T> SeriesTrait for SeriesWrap<ObjectChunked<T>>
91where
92    T: PolarsObject,
93{
94    fn rename(&mut self, name: PlSmallStr) {
95        ObjectChunked::rename(&mut self.0, name)
96    }
97
98    fn chunk_lengths(&self) -> ChunkLenIter {
99        ObjectChunked::chunk_lengths(&self.0)
100    }
101
102    fn name(&self) -> &PlSmallStr {
103        ObjectChunked::name(&self.0)
104    }
105
106    fn dtype(&self) -> &DataType {
107        ObjectChunked::dtype(&self.0)
108    }
109
110    fn chunks(&self) -> &Vec<ArrayRef> {
111        ObjectChunked::chunks(&self.0)
112    }
113    unsafe fn chunks_mut(&mut self) -> &mut Vec<ArrayRef> {
114        self.0.chunks_mut()
115    }
116
117    fn slice(&self, offset: i64, length: usize) -> Series {
118        ObjectChunked::slice(&self.0, offset, length).into_series()
119    }
120
121    fn split_at(&self, offset: i64) -> (Series, Series) {
122        let (a, b) = ObjectChunked::split_at(&self.0, offset);
123        (a.into_series(), b.into_series())
124    }
125
126    fn append(&mut self, other: &Series) -> PolarsResult<()> {
127        polars_ensure!(self.dtype() == other.dtype(), append);
128        ObjectChunked::append(&mut self.0, other.as_ref().as_ref())
129    }
130    fn append_owned(&mut self, other: Series) -> PolarsResult<()> {
131        polars_ensure!(self.dtype() == other.dtype(), append);
132        ObjectChunked::append_owned(&mut self.0, other.take_inner())
133    }
134
135    fn extend(&mut self, _other: &Series) -> PolarsResult<()> {
136        polars_bail!(opq = extend, self.dtype());
137    }
138
139    fn filter(&self, filter: &BooleanChunked) -> PolarsResult<Series> {
140        ChunkFilter::filter(&self.0, filter).map(|ca| ca.into_series())
141    }
142
143    fn take(&self, indices: &IdxCa) -> PolarsResult<Series> {
144        let ca = self.rechunk_object();
145        Ok(ca.take(indices)?.into_series())
146    }
147
148    unsafe fn take_unchecked(&self, indices: &IdxCa) -> Series {
149        let ca = self.rechunk_object();
150        ca.take_unchecked(indices).into_series()
151    }
152
153    fn take_slice(&self, indices: &[IdxSize]) -> PolarsResult<Series> {
154        Ok(self.0.take(indices)?.into_series())
155    }
156
157    unsafe fn take_slice_unchecked(&self, indices: &[IdxSize]) -> Series {
158        self.0.take_unchecked(indices).into_series()
159    }
160
161    fn len(&self) -> usize {
162        ObjectChunked::len(&self.0)
163    }
164
165    fn rechunk(&self) -> Series {
166        // do not call normal rechunk
167        self.rechunk_object().into_series()
168    }
169
170    fn new_from_index(&self, index: usize, length: usize) -> Series {
171        ChunkExpandAtIndex::new_from_index(&self.0, index, length).into_series()
172    }
173
174    fn cast(&self, dtype: &DataType, _cast_options: CastOptions) -> PolarsResult<Series> {
175        if matches!(dtype, DataType::Object(_)) {
176            Ok(self.0.clone().into_series())
177        } else {
178            Err(PolarsError::ComputeError(
179                "cannot cast 'Object' type".into(),
180            ))
181        }
182    }
183
184    fn get(&self, index: usize) -> PolarsResult<AnyValue> {
185        ObjectChunked::get_any_value(&self.0, index)
186    }
187    unsafe fn get_unchecked(&self, index: usize) -> AnyValue {
188        ObjectChunked::get_any_value_unchecked(&self.0, index)
189    }
190    fn null_count(&self) -> usize {
191        ObjectChunked::null_count(&self.0)
192    }
193
194    fn has_nulls(&self) -> bool {
195        ObjectChunked::has_nulls(&self.0)
196    }
197
198    fn unique(&self) -> PolarsResult<Series> {
199        ChunkUnique::unique(&self.0).map(|ca| ca.into_series())
200    }
201
202    fn n_unique(&self) -> PolarsResult<usize> {
203        ChunkUnique::n_unique(&self.0)
204    }
205
206    fn arg_unique(&self) -> PolarsResult<IdxCa> {
207        ChunkUnique::arg_unique(&self.0)
208    }
209
210    fn is_null(&self) -> BooleanChunked {
211        ObjectChunked::is_null(&self.0)
212    }
213
214    fn is_not_null(&self) -> BooleanChunked {
215        ObjectChunked::is_not_null(&self.0)
216    }
217
218    fn reverse(&self) -> Series {
219        ChunkReverse::reverse(&self.0).into_series()
220    }
221
222    fn shift(&self, periods: i64) -> Series {
223        ChunkShift::shift(&self.0, periods).into_series()
224    }
225
226    fn clone_inner(&self) -> Arc<dyn SeriesTrait> {
227        Arc::new(SeriesWrap(Clone::clone(&self.0)))
228    }
229
230    fn get_object(&self, index: usize) -> Option<&dyn PolarsObjectSafe> {
231        ObjectChunked::<T>::get_object(&self.0, index)
232    }
233
234    unsafe fn get_object_chunked_unchecked(
235        &self,
236        chunk: usize,
237        index: usize,
238    ) -> Option<&dyn PolarsObjectSafe> {
239        ObjectChunked::<T>::get_object_chunked_unchecked(&self.0, chunk, index)
240    }
241
242    fn as_any(&self) -> &dyn Any {
243        &self.0
244    }
245
246    fn as_any_mut(&mut self) -> &mut dyn Any {
247        &mut self.0
248    }
249
250    fn as_phys_any(&self) -> &dyn Any {
251        self
252    }
253
254    fn as_arc_any(self: Arc<Self>) -> Arc<dyn Any + Send + Sync> {
255        self as _
256    }
257}
258
259#[cfg(test)]
260mod test {
261    use super::*;
262
263    #[test]
264    fn test_downcast_object() -> PolarsResult<()> {
265        #[allow(non_local_definitions)]
266        impl PolarsObject for i32 {
267            fn type_name() -> &'static str {
268                "i32"
269            }
270        }
271
272        let ca = ObjectChunked::new_from_vec("a".into(), vec![0i32, 1, 2]);
273        let s = ca.into_series();
274
275        let ca = s.as_any().downcast_ref::<ObjectChunked<i32>>().unwrap();
276        assert_eq!(*ca.get(0).unwrap(), 0);
277        assert_eq!(*ca.get(1).unwrap(), 1);
278        assert_eq!(*ca.get(2).unwrap(), 2);
279
280        Ok(())
281    }
282}
polars_core/series/implementations/object.rs

polars_core/series/implementations/
object.rs
