polars_arrow/scalar/
struct_.rs

1use super::Scalar;
2use crate::datatypes::ArrowDataType;
3
4/// A single entry of a [`crate::array::StructArray`].
5#[derive(Debug, Clone)]
6pub struct StructScalar {
7    values: Vec<Box<dyn Scalar>>,
8    is_valid: bool,
9    dtype: ArrowDataType,
10}
11
12impl PartialEq for StructScalar {
13    fn eq(&self, other: &Self) -> bool {
14        (self.dtype == other.dtype)
15            && (self.is_valid == other.is_valid)
16            && ((!self.is_valid) | (self.values == other.values))
17    }
18}
19
20impl StructScalar {
21    /// Returns a new [`StructScalar`]
22    #[inline]
23    pub fn new(dtype: ArrowDataType, values: Option<Vec<Box<dyn Scalar>>>) -> Self {
24        let is_valid = values.is_some();
25        Self {
26            values: values.unwrap_or_default(),
27            is_valid,
28            dtype,
29        }
30    }
31
32    /// Returns the values irrespectively of the validity.
33    #[inline]
34    pub fn values(&self) -> &[Box<dyn Scalar>] {
35        &self.values
36    }
37}
38
39impl Scalar for StructScalar {
40    #[inline]
41    fn as_any(&self) -> &dyn std::any::Any {
42        self
43    }
44
45    #[inline]
46    fn is_valid(&self) -> bool {
47        self.is_valid
48    }
49
50    #[inline]
51    fn dtype(&self) -> &ArrowDataType {
52        &self.dtype
53    }
54}
polars_arrow/scalar/struct_.rs

polars_arrow/scalar/
struct_.rs
