1use std::ops::{Deref, DerefMut};
2
3pub struct DummyBox<T>(pub T);
4
5impl<T> Deref for DummyBox<T> {
6 type Target = T;
7
8 fn deref(&self) -> &Self::Target {
9 &self.0
10 }
11}
12
13impl<T> DerefMut for DummyBox<T> {
14 fn deref_mut(&mut self) -> &mut Self::Target {
15 &mut self.0
16 }
17}
18
19#[cfg(feature = "dst_arrow")]
20pub fn decimal_to_i128(mut v: rust_decimal::Decimal, scale: u32) -> anyhow::Result<i128> {
21 v.rescale(scale);
22
23 let v_scale = v.scale();
24 if v_scale != scale as u32 {
25 return Err(anyhow::anyhow!(
26 "decimal scale is not equal to expected scale, got: {} expected: {}",
27 v_scale,
28 scale
29 ));
30 }
31
32 Ok(v.mantissa())
33}