1  // Copyright (c) 2019-2025 Alpha-Delta Network Inc.
 2  // This file is part of the alphavm library.
 3  
 4  // Licensed under the Apache License, Version 2.0 (the "License");
 5  // you may not use this file except in compliance with the License.
 6  // You may obtain a copy of the License at:
 7  
 8  // http://www.apache.org/licenses/LICENSE-2.0
 9  
10  // Unless required by applicable law or agreed to in writing, software
11  // distributed under the License is distributed on an "AS IS" BASIS,
12  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  // See the License for the specific language governing permissions and
14  // limitations under the License.
15  
16  use super::*;
17  
18  impl<N: Network> FromBytes for ConfirmedTxType<N> {
19      /// Reads the confirmed transaction type from the buffer.
20      fn read_le<R: Read>(mut reader: R) -> IoResult<Self> {
21          // Read the variant.
22          let variant = u8::read_le(&mut reader)?;
23          // Match the variant.
24          match variant {
25              0 => Ok(Self::AcceptedDeploy(u32::read_le(&mut reader)?)),
26              1 => Ok(Self::AcceptedExecute(u32::read_le(&mut reader)?)),
27              2 => Ok(Self::RejectedDeploy(u32::read_le(&mut reader)?, Rejected::read_le(&mut reader)?)),
28              3 => Ok(Self::RejectedExecute(u32::read_le(&mut reader)?, Rejected::read_le(&mut reader)?)),
29              4.. => Err(error("Invalid confirmed transaction type variant")),
30          }
31      }
32  }
33  
34  impl<N: Network> ToBytes for ConfirmedTxType<N> {
35      /// Writes the confirmed transaction type to the buffer.
36      fn write_le<W: Write>(&self, mut writer: W) -> IoResult<()> {
37          // Write the confirmed transaction type.
38          match self {
39              Self::AcceptedDeploy(index) => {
40                  // Write the variant.
41                  0u8.write_le(&mut writer)?;
42                  // Write the index.
43                  index.write_le(&mut writer)
44              }
45              Self::AcceptedExecute(index) => {
46                  // Write the variant.
47                  1u8.write_le(&mut writer)?;
48                  // Write the index.
49                  index.write_le(&mut writer)
50              }
51              Self::RejectedDeploy(index, rejected) => {
52                  // Write the variant.
53                  2u8.write_le(&mut writer)?;
54                  // Write the index.
55                  index.write_le(&mut writer)?;
56                  // Write the rejected transaction.
57                  rejected.write_le(&mut writer)
58              }
59              Self::RejectedExecute(index, rejected) => {
60                  // Write the variant.
61                  3u8.write_le(&mut writer)?;
62                  // Write the index.
63                  index.write_le(&mut writer)?;
64                  // Write the rejected transaction.
65                  rejected.write_le(&mut writer)
66              }
67          }
68      }
69  }
70  
71  #[cfg(test)]
72  mod tests {
73      use super::*;
74  
75      #[test]
76      fn test_bytes() {
77          for expected in crate::confirmed_tx_type::test_helpers::sample_confirmed_tx_types() {
78              // Check the byte representation.
79              let expected_bytes = expected.to_bytes_le().unwrap();
80              assert_eq!(expected, ConfirmedTxType::read_le(&expected_bytes[..]).unwrap());
81          }
82      }
83  }