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vortex_array/arrays/varbinview/vtable/
visitor.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use super::VarBinViewVTable;
5use crate::ArrayBufferVisitor;
6use crate::ArrayChildVisitor;
7use crate::ArrayRef;
8use crate::arrays::VarBinViewArray;
9use crate::vtable::ValidityHelper;
10use crate::vtable::VisitorVTable;
11use crate::vtable::validity_nchildren;
12use crate::vtable::validity_to_child;
13
14impl VisitorVTable<VarBinViewVTable> for VarBinViewVTable {
15    fn visit_buffers(array: &VarBinViewArray, visitor: &mut dyn ArrayBufferVisitor) {
16        for (i, buffer) in array.buffers().iter().enumerate() {
17            visitor.visit_buffer_handle(&format!("buffer_{i}"), buffer);
18        }
19        visitor.visit_buffer_handle("views", array.views_handle());
20    }
21
22    fn nbuffers(array: &VarBinViewArray) -> usize {
23        array.buffers().len() + 1
24    }
25
26    fn visit_children(array: &VarBinViewArray, visitor: &mut dyn ArrayChildVisitor) {
27        visitor.visit_validity(array.validity(), array.len())
28    }
29
30    fn nchildren(array: &VarBinViewArray) -> usize {
31        validity_nchildren(array.validity())
32    }
33
34    fn nth_child(array: &VarBinViewArray, idx: usize) -> Option<ArrayRef> {
35        match idx {
36            0 => validity_to_child(array.validity(), array.len()),
37            _ => None,
38        }
39    }
40}