(
lhs: &ArrayData,
rhs: &ArrayData,
lhs_start: usize,
rhs_start: usize,
len: usize,
)
| 47 | } |
| 48 | |
| 49 | pub(super) fn variable_sized_equal<T: ArrowNativeType + Integer>( |
| 50 | lhs: &ArrayData, |
| 51 | rhs: &ArrayData, |
| 52 | lhs_start: usize, |
| 53 | rhs_start: usize, |
| 54 | len: usize, |
| 55 | ) -> bool { |
| 56 | let lhs_offsets = lhs.buffer::<T>(0); |
| 57 | let rhs_offsets = rhs.buffer::<T>(0); |
| 58 | |
| 59 | // the offsets of the `ArrayData` are ignored as they are only applied to the offset buffer. |
| 60 | let lhs_values = lhs.buffers()[1].as_slice(); |
| 61 | let rhs_values = rhs.buffers()[1].as_slice(); |
| 62 | |
| 63 | // Only checking one null mask here because by the time the control flow reaches |
| 64 | // this point, the equality of the two masks would have already been verified. |
| 65 | if !contains_nulls(lhs.nulls(), lhs_start, len) { |
| 66 | let lhs_offsets_slice = &lhs_offsets[lhs_start..lhs_start + len + 1]; |
| 67 | let rhs_offsets_slice = &rhs_offsets[rhs_start..rhs_start + len + 1]; |
| 68 | lengths_equal(lhs_offsets_slice, rhs_offsets_slice) |
| 69 | && offset_value_equal( |
| 70 | lhs_values, |
| 71 | rhs_values, |
| 72 | lhs_offsets, |
| 73 | rhs_offsets, |
| 74 | lhs_start, |
| 75 | rhs_start, |
| 76 | len, |
| 77 | ) |
| 78 | } else { |
| 79 | (0..len).all(|i| { |
| 80 | let lhs_pos = lhs_start + i; |
| 81 | let rhs_pos = rhs_start + i; |
| 82 | |
| 83 | // the null bits can still be `None`, indicating that the value is valid. |
| 84 | let lhs_is_null = lhs.nulls().map(|v| v.is_null(lhs_pos)).unwrap_or_default(); |
| 85 | let rhs_is_null = rhs.nulls().map(|v| v.is_null(rhs_pos)).unwrap_or_default(); |
| 86 | |
| 87 | lhs_is_null |
| 88 | || (lhs_is_null == rhs_is_null) |
| 89 | && offset_value_equal( |
| 90 | lhs_values, |
| 91 | rhs_values, |
| 92 | lhs_offsets, |
| 93 | rhs_offsets, |
| 94 | lhs_pos, |
| 95 | rhs_pos, |
| 96 | 1, |
| 97 | ) |
| 98 | }) |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | #[cfg(test)] |
| 103 | mod tests { |
nothing calls this directly
no test coverage detected