1  use core::fmt::{Formatter, LowerHex, Result, UpperHex};
2  
3  use super::BytesRef;
4  use crate::{Bytes, BytesMut};
5  
6  impl LowerHex for BytesRef<'_> {
fmt(&self, f: &mut Formatter<'_>) -> Result7      fn fmt(&self, f: &mut Formatter<'_>) -> Result {
8          for &b in self.0 {
9              write!(f, "{:02x}", b)?;
10          }
11          Ok(())
12      }
13  }
14  
15  impl UpperHex for BytesRef<'_> {
fmt(&self, f: &mut Formatter<'_>) -> Result16      fn fmt(&self, f: &mut Formatter<'_>) -> Result {
17          for &b in self.0 {
18              write!(f, "{:02X}", b)?;
19          }
20          Ok(())
21      }
22  }
23  
24  fmt_impl!(LowerHex, Bytes);
25  fmt_impl!(LowerHex, BytesMut);
26  fmt_impl!(UpperHex, Bytes);
27  fmt_impl!(UpperHex, BytesMut);
28