1use alloc::string::ToString;
2use core::fmt;
3use core2::io::{self, Read, Write};
4
5#[cfg(feature = "std")]
6use memuse::DynamicUsage;
7
8#[derive(Clone, Copy, PartialOrd, Ord, PartialEq, Eq, Hash)]
16pub struct TxId([u8; 32]);
17
18#[cfg(feature = "std")]
19memuse::impl_no_dynamic_usage!(TxId);
20
21impl fmt::Debug for TxId {
22 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
23 let txid_str = self.to_string();
26 f.debug_tuple("TxId").field(&txid_str).finish()
27 }
28}
29
30impl fmt::Display for TxId {
31 fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
32 let mut data = self.0;
33 data.reverse();
34 formatter.write_str(&hex::encode(data))
35 }
36}
37
38impl AsRef<[u8; 32]> for TxId {
39 fn as_ref(&self) -> &[u8; 32] {
40 &self.0
41 }
42}
43
44impl From<TxId> for [u8; 32] {
45 fn from(value: TxId) -> Self {
46 value.0
47 }
48}
49
50impl TxId {
51 pub const fn from_bytes(bytes: [u8; 32]) -> Self {
52 TxId(bytes)
53 }
54
55 pub fn read<R: Read>(mut reader: R) -> io::Result<Self> {
56 let mut hash = [0u8; 32];
57 reader.read_exact(&mut hash)?;
58 Ok(TxId::from_bytes(hash))
59 }
60
61 pub fn write<W: Write>(&self, mut writer: W) -> io::Result<()> {
62 writer.write_all(&self.0)?;
63 Ok(())
64 }
65}